Frontier materials & technologies最新文献_第3页

THE INTERRELATION BETWEEN THE ELECTRODEPOSITION PARAMETERS AND SURFACE MORPHOLOGY OF NICKEL COATINGS IN THE PRESENCE OF A GROWTH INHIBITOR 在生长抑制剂的作用下，电沉积参数与镍镀层表面形貌的相互关系

Frontier materials & technologies Pub Date : 1900-01-01 DOI: 10.18323/2782-4039-2022-1-40-48

N. Matveeva, N. Gryzunova

{"title":"THE INTERRELATION BETWEEN THE ELECTRODEPOSITION PARAMETERS AND SURFACE MORPHOLOGY OF NICKEL COATINGS IN THE PRESENCE OF A GROWTH INHIBITOR","authors":"N. Matveeva, N. Gryzunova","doi":"10.18323/2782-4039-2022-1-40-48","DOIUrl":"https://doi.org/10.18323/2782-4039-2022-1-40-48","url":null,"abstract":"On the one hand, nickel and nickel coatings are well-studied objects in terms of their wide practical application; on the other hand, the application of various approaches to their production and structuring gives new possibilities for changing their properties. At present, the research activities related to the change in nickel physicochemical properties through nanostructuring are being carried out. Methods and techniques for producing nanostructured materials are very diverse. However, many of them are considered energy-intensive and economically unviable. The work solves the problem of obtaining nickel coatings and changing their properties through electrodeposition from aqueous solutions of electrolytes. The paper studies the effect of additives to a nickel electrolyte on the habit of crystals formed in the coating and, consequently, the nickel coating morphology. The authors used sodium, potassium, and calcium chlorides in the same molar concentration to be additives. During the electrodeposition of coating samples, the substrate nature and the electrolysis regimes changed. The deposition was carried out in the stationary mode of electrodeposition within one or two stages of electrolysis. The authors studied the obtained samples by scanning electron microscopy methods using X-ray diffraction analysis. The study identified that chlorides can significantly change the coating surface morphology. Depending on chloride concentration and deposition regimes, the surface morphology of nickel coatings changes from the three-dimensional cone-shaped structures to the lamellar habit. Chlorides allow forming crystals with pentagonal symmetry as well. The addition of chlorides affects the growth of crystals in certain crystallographic directions (111), which may be the result of their inhibitory effect. The obtained nickel coatings have a regular microrelief.","PeriodicalId":251458,"journal":{"name":"Frontier materials & technologies","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121520001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Irregularity of microhardness and microstructure of low-carbon steel rolled in a two-stand rolling-leveling mill 双机架轧直机轧制低碳钢显微硬度和组织的不均匀性

Frontier materials & technologies Pub Date : 1900-01-01 DOI: 10.18323/2782-4039-2023-2-64-9

V. P. Ivanov, S. V. Pilipenko, O. P. Shtempel, T. Vigerina

{"title":"Irregularity of microhardness and microstructure of low-carbon steel rolled in a two-stand rolling-leveling mill","authors":"V. P. Ivanov, S. V. Pilipenko, O. P. Shtempel, T. Vigerina","doi":"10.18323/2782-4039-2023-2-64-9","DOIUrl":"https://doi.org/10.18323/2782-4039-2023-2-64-9","url":null,"abstract":"The relevance of the study is proved by two factors. One of them is the necessity to study the nature of the change in the microstructure of the cross-section of extra-thin tinplate made of TS 435 steel (analogue of 08ps steel) skin-passed in a new DSR-1250 mill of the Miory Metal Rolling Plant. The second factor is the need to develop an effective method for obtaining accurate geometry characteristics of an oblique cut of tinplate 0.19 mm or less thick. The purpose of the work is to determine the changes in microhardness and microstructure over the thickness of tinplate samples and identify the existence of a layer microstructure necessary for this type of flat-rolled products. The study was carried out on the selected samples of tinplate of TS 435 steel 0.19 mm thick. This tinplate was rolled from an annealed strip, 0.224 mm thick. The total magnitude of reduction in the mill was 15 %, and the reduction in the skin-pass stand was at least 3 %. The authors carried out measurements of microhardness at different points over the thickness of the selected tinplate samples. The microhardness values over the strip thickness were averaged using 6th degree polynomial interpolation. To study the grain dimension, a number of microstructure images were taken in various areas over the sheet thickness with ×500 magnification. The microstructure studies showed a pronounced strain microstructure with grains elongated in the direction of rolling. At the very boundary of metal contacting the rolls, the grains received the greatest deformation. The highest values of microhardness were identified in two zones adjacent to both strip surfaces and in the central layers along the strip thickness. The change in the microhardness values along the sheet thickness has a wave-like character with three pronounced zones of increase in hardness and two zones of a decrease in its values. The zones with the lowest microhardness values are located between the zones with the maximum values.","PeriodicalId":251458,"journal":{"name":"Frontier materials & technologies","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134212581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

THE ANALYSIS OF CHANGES IN MICROHARDNESS, CREEP RATE, AND MORPHOLOGY OF THE VT1-0 TITANIUM FRACTURE SURFACE DEFORMED UNDER THE ACTION OF THE CONSTANT MAGNETIC FIELD OF 0.3 T 分析了0.3 t恒定磁场作用下变形的vt1-0钛合金断口的显微硬度、蠕变速率和形貌变化

Frontier materials & technologies Pub Date : 1900-01-01 DOI: 10.18323/2782-4039-2022-1-91-100

V. Shlyarov, D. Zagulyaev, A. Serebryakova

{"title":"THE ANALYSIS OF CHANGES IN MICROHARDNESS, CREEP RATE, AND MORPHOLOGY OF THE VT1-0 TITANIUM FRACTURE SURFACE DEFORMED UNDER THE ACTION OF THE CONSTANT MAGNETIC FIELD OF 0.3 T","authors":"V. Shlyarov, D. Zagulyaev, A. Serebryakova","doi":"10.18323/2782-4039-2022-1-91-100","DOIUrl":"https://doi.org/10.18323/2782-4039-2022-1-91-100","url":null,"abstract":"Today, a promising research area is the study of the behavior of the materials’ technological and physical characteristics under the external energy effects, such as constant magnetic fields. It is caused by the emergence of multifactorial scientific and industrial problems arising because of the introduction of high technologies into production. One of the directions is the production of new equipment, devices, and machines that somehow form electromagnetic fields around them. Therefore, an umbrella approach to studying the influence of magnetic field effects on the deformation characteristics of metals and alloys contributes to a deeper understanding of the physical nature of this effect. As an object for the research, the authors selected commercially pure titanium of VT1-0 grade. The work aims to study the influence of a constant magnetic field of 0.3 T on microhardness, creep rate, and fracture surface of commercially pure VT1-0 titanium. The results show that under the influence of a constant magnetic field of 0.3 T, the relative value of VT1-0 titanium microhardness decreases by 2–5 %, followed by relaxation to the initial value. The creep rate of titanium increases by approximately 31 % when applying a field of 0.3 T induction during the test (without field applying, the creep rate is 2.4 %/h, in the magnetic field is 3 %/h). The fracture surface analysis using scanning electron microscopy (SEM) shows that titanium specimens undergo ductile fracture. Numerous equiaxial destruction pits characterize the fracture surface. It should be noted that pits with the stretched areas are present mainly on the samples destroyed under the creep conditions in a constant magnetic field of 0.3 T.","PeriodicalId":251458,"journal":{"name":"Frontier materials & technologies","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128841805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The influence of severe plastic deformation on mechanical properties of pure zinc 剧烈塑性变形对纯锌力学性能的影响

Frontier materials & technologies Pub Date : 1900-01-01 DOI: 10.18323/2782-4039-2022-3-2-25-31

M. Polenok, E. Khafizova, R. Islamgaliev

{"title":"The influence of severe plastic deformation on mechanical properties of pure zinc","authors":"M. Polenok, E. Khafizova, R. Islamgaliev","doi":"10.18323/2782-4039-2022-3-2-25-31","DOIUrl":"https://doi.org/10.18323/2782-4039-2022-3-2-25-31","url":null,"abstract":"Biodegradable materials, which have the ability to resorb in the body, are new and promising materials for medical implants. Currently, scientists carry out the investigations according to three directions: Mg, Fe, and Zn alloys. Zinc-based alloys and zinc have good solubility in the body, which meets the clinical requirements of implants. However, pure zinc has low mechanical properties, including hardness and tensile strength. Therefore, at present, the world scientific community is seeking ways to improve the properties of pure zinc by alloying. Another known approach is the ultrafine-grained (UFG) structure formation by the severe plastic deformation (SPD) methods, which are based on the large plastic deformations under high pressure and relatively low homologous temperatures. In this work, the authors studied the influence of high pressure torsion of pure zinc with various numbers of revolutions. The paper presents calculations of shear deformation after SPD. The authors investigated the dependence of mechanical properties and microstructure on the deformation degree. Tension tests at room temperature were carried out, and microhardness was measured. The authors studied the structure using scanning electron microscopy and optics. The study identified that the use of high pressure torsion leads to an increase in the tensile strength of pure zinc up to 140 MPa and ductility up to 40 % resulting from dynamic recrystallization.","PeriodicalId":251458,"journal":{"name":"Frontier materials & technologies","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125253436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The selection of interatomic potentials for simulation of extreme actions within the tungsten lattice 用于模拟钨晶格内极端作用的原子间电位的选择

Frontier materials & technologies Pub Date : 1900-01-01 DOI: 10.18323/2782-4039-2022-3-2-16-24

A. Y. Morkina, I. I. Tuvalev, S. Dmitriev, Y. Bebikhov, A. S. Semenov, Yu. R. Sharapova

{"title":"The selection of interatomic potentials for simulation of extreme actions within the tungsten lattice","authors":"A. Y. Morkina, I. I. Tuvalev, S. Dmitriev, Y. Bebikhov, A. S. Semenov, Yu. R. Sharapova","doi":"10.18323/2782-4039-2022-3-2-16-24","DOIUrl":"https://doi.org/10.18323/2782-4039-2022-3-2-16-24","url":null,"abstract":"Simulation of crystal lattices under conditions far from equilibrium is an increasingly important subject of research and requires confidence in the validity of the applied interatomic potentials in a wide range of atom deviations from the balanced condition. To make such an assessment for modeling tungsten as an advanced material for various nuclear applications, the authors analyzed the nonlinear behavior of the lattice using several interatomic potentials. In a bcc tungsten crystal, oscillations were simulated according to the laws of several delocalized nonlinear vibrational modes – exact solutions to the equations of motion of atoms, the geometry of which is determined by the lattice symmetry at any amplitudes and does not depend on the type of interaction between the nodes. The authors considered two-dimensional cases of oscillations in one of the close-packed planes and three-dimensional cases when the motions of atoms have three components in space for a tungsten cell consisting of 2000 atoms and 31.6×31.6×31.6 Å in size. The amplitude-frequency characteristics of these modes were calculated for several interatomic potentials available in the LAMMPS library. The study identified that several interatomic potentials, namely eam.fs, set, Olsson, and Zhou show practically identical results, which is an indirect confirmation of their validity and the possibility of their use for modeling extreme impacts in the considered lattice. The authors calculated such characteristics of the system as kinetic energy, heat capacity, and pressure. Based on the results obtained, one can assume that mode 15, due to the modulation instability, will lead to the energy localization on individual atoms.","PeriodicalId":251458,"journal":{"name":"Frontier materials & technologies","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126243665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Nucleation and growth of fullerenes and nanotubes having three-fold T-symmetry 具有三重t对称的富勒烯和纳米管的成核和生长

Frontier materials & technologies Pub Date : 1900-01-01 DOI: 10.18323/2782-4039-2022-2-37-53

A. Melker, M. Krupina, A. N. Matvienko

{"title":"Nucleation and growth of fullerenes and nanotubes having three-fold T-symmetry","authors":"A. Melker, M. Krupina, A. N. Matvienko","doi":"10.18323/2782-4039-2022-2-37-53","DOIUrl":"https://doi.org/10.18323/2782-4039-2022-2-37-53","url":null,"abstract":"According to the periodic system of fullerenes, all the fullerenes can be classified into the groups having different symmetry. It is supposed that the fullerenes of one and the same symmetry have similar properties. Before the appearance of the periodic system in 2017 the fullerenes were chosen for study at a random way that instead of ordering the results only increased information entropy. We have studied possible ways of generation and growing the fullerenes, which refer to the group having three-fold T-symmetry. Beginning with cyclopropane C3H6 producing clusters C6, we have obtained elementary fullerenes C6 as well as mini-fullerenes C12, which in their turn have produced the fullerenes from C18 to C48, perfect and imperfect, as well as nanotubes. The basic perfect fullerenes C18, C24, C30, C36, C42 and C48 have the ordinary three-fold symmetry, the intermediate ones having no such symmetry. Their imperfection is connected with extra ‘interstitial’ or carbon dimers, the dimers playing the role of defects. One can define the imperfect fullerenes with defects as the fullerenes having topological three-fold symmetry. We have calculated their shape and energies using Avogadro package and discussed possible reasons of their dependence on a fullerene size and shape. We have found that the fullerenes can be divided into two groups, alive that can grow, and dead which are impotent. Taking into account the results obtained early, allows us to make predictions that the dead fullerenes C24R, C32R, C40R and C48R of three-, four-, five- and six-fold symmetry have the most chance to be found experimentally with comparison of their isomers.","PeriodicalId":251458,"journal":{"name":"Frontier materials & technologies","volume":"209 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128163763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The dependence of the biodegradable ZX10 alloy corrosion process on the structural factors and local pH level 可生物降解ZX10合金腐蚀过程与结构因素和局部pH值的关系

Frontier materials & technologies Pub Date : 1900-01-01 DOI: 10.18323/2782-4039-2023-2-64-3

P. Myagkikh, E. Merson, V. Poluyanov, D. Merson

{"title":"The dependence of the biodegradable ZX10 alloy corrosion process on the structural factors and local pH level","authors":"P. Myagkikh, E. Merson, V. Poluyanov, D. Merson","doi":"10.18323/2782-4039-2023-2-64-3","DOIUrl":"https://doi.org/10.18323/2782-4039-2023-2-64-3","url":null,"abstract":"Magnesium biodegradable alloys are a promising material for self-dissolving surgical implants. Magnesium is known to be sensitive to electrochemical corrosion due to the galvanic effect between the matrix and particles of secondary phases and inclusions. Another important factor is the pH level. The behavior of certain chemical reactions depends on the pH level, so one can assume that the pH level of a corrosive medium at the material surface is a factor determining what chemical reactions can occur there. Finally, there is evidence that variability of the crystallographic orientation of the grains may be a cause of anisotropy of corrosion properties. The purpose of this work is to reveal the influence of the electrode potential of the microstructural elements, the crystallographic orientation of the grains, and the pH level of the near-surface volume of the corrosion solution on the corrosion process. In the study, sections of 2×1.5 mm were marked on the ZX10 alloy samples, for which maps of the distribution of crystallographic orientations and chemical composition were drawn. To assess the influence of the electrode potential of the particles, the authors carried out a Kelvin probe mapping in the 90×90 µm area. Next, corrosion tests were carried out with video filming of the surface on the marked area. To determine the pH level influence, the solution circulation in the cell was varied. Upon completion of the tests, corrosion products and corrosion damage were examined in detail. According to the results, the pH level in the liquid near-surface micro-volumes has a greater influence than the electrode potential of the particles as it provokes the formation of corrosion products of a different composition, which leads to passivation of the surface areas around the particles. The authors identified two different types of filiform corrosion. For filiform corrosion, a correlation between the corrosion direction and the crystallographic orientation of the grains was established.","PeriodicalId":251458,"journal":{"name":"Frontier materials & technologies","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126421903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metallographic examination as the feedback between product quality and manufacturing 金相检验作为产品质量和制造之间的反馈

Frontier materials & technologies Pub Date : 1900-01-01 DOI: 10.18323/2782-4039-2022-2-54-62

D. Merson, A. A. Karavanova, A. V. Klimanov

{"title":"Metallographic examination as the feedback between product quality and manufacturing","authors":"D. Merson, A. A. Karavanova, A. V. Klimanov","doi":"10.18323/2782-4039-2022-2-54-62","DOIUrl":"https://doi.org/10.18323/2782-4039-2022-2-54-62","url":null,"abstract":"Despite the increasing automation of the process of designing and manufacturing metal products, their failure remains a common phenomenon. The metallographic examination is appointed, which can only be carried out at a proper level by the specialized accredited organizations to identify the causes of such incidents. A metallographic examination is a tool that acts as feedback between the output quality of products and the entire chain of numerous operations during production. The purpose of this work is, using a practical example, to demonstrate the possibility and special significance of the conclusions of the metallographic examination for the development of the product manufacturing technology. Using the high-speed plasma spraying method, the authors applied the NiCrBSi coating to the surface of the locomotive wheel pair axle to increase its wear resistance. The life bench tests of the axle revealed the main fatigue crack, the tests were stopped, and the axle was artificially broken completely. The analysis of metal quality, including chemical composition, mechanical properties (strength, ductility, and impact hardness), microstructure, metal purity according to the non-metallic inclusions, and parameters of a surface layer hardened by rolling, showed its full compliance with the regulatory documentation. The thickness and hardness parameters of the NiCrBSi coating also corresponded to the declared ones. According to the fractographic analysis, the fatigue fracture was initiated at multiple points, which was a characteristic sign of a common objective reason for the insufficient strength of a product not associated with some random factor. The metallographic examination identified that the main reason for the failure of a wheelset axle is the coating's insufficient fatigue strength. The numerous fatigue microcracks that originated in the coating grew into the base metal and led to the fatigue macrocracks formation at different height levels. The merging of these cracks led to widespread fatigue fracture surface formation.","PeriodicalId":251458,"journal":{"name":"Frontier materials & technologies","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124376853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The mechanical properties, electrical conductivity, and thermal stability of a wire made of Al–Fe alloys produced by casting into an electromagnetic crystallizer 在电磁结晶器中铸造铝铁合金制成的金属丝的机械性能、导电性和热稳定性

Frontier materials & technologies Pub Date : 1900-01-01 DOI: 10.18323/2782-4039-2022-3-1-96-105

A. Medvedev, O. O. Zhukova, D. D. Fedotova, M. Murashkin

{"title":"The mechanical properties, electrical conductivity, and thermal stability of a wire made of Al–Fe alloys produced by casting into an electromagnetic crystallizer","authors":"A. Medvedev, O. O. Zhukova, D. D. Fedotova, M. Murashkin","doi":"10.18323/2782-4039-2022-3-1-96-105","DOIUrl":"https://doi.org/10.18323/2782-4039-2022-3-1-96-105","url":null,"abstract":"The development and production of new aluminum-based materials is a critical task of the up-to-date industry. Particularly, new materials are necessary to produce light, strong, and thermally-stable wires and cables for household usage, transport, and power sphere. The paper presents the results of the study of the microstructure and physical and mechanical properties of Al–0.5Fe and Al–1.7Fe alloys (wt. %), produced by continuous casting into an electromagnetic crystallizer (EMC). The authors carried out a comparative analysis of alloys under the study and commercial alloys. During this analysis, the authors produced a wire with the diameter of 3 mm from the primary cast blanks by the cold drawing method (CD). The microstructure analysis showed that as a result of casting into an electromagnetic crystallizer, the particles of metastable modification Al2Fe phase appear during the crystallization process that have sizes close to the nanometric range. The use of the cold drawing method led to the substructure formation in both alloys and the refinement of intermetallic particles, which ensured the significant hardening of alloy specimens. After cold drawing, the intermetallic particles were grinded and distributed along the boundaries of grains/sub-grains. The ultimate tensile strength of the Al–0.5Fe alloy was 204 MPa, while in the Al–1.7Fe alloy, it reached 295 MPa. The electrical conductivity level of the Al–0.5Fe and Al–1.7Fe alloys wire was 58.4 and 52.0 % IACS, respectively. The study showed that the Al–Fe alloys wire with ferrum concentration of up to 1.7 wt. % demonstrated thermal stability at the level of thermally-stable Al–Zr and Al–REM conductive alloys.","PeriodicalId":251458,"journal":{"name":"Frontier materials & technologies","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123664134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the compatibility of surgical implants of bioresorbable magnesium alloys with medical devices of titanium alloys 生物可吸收镁合金外科植入物与钛合金医疗器械的相容性研究

Frontier materials & technologies Pub Date : 1900-01-01 DOI: 10.18323/2782-4039-2022-3-1-106-114

P. Myagkikh, E. Merson, V. Poluyanov, D. Merson, M. E. Begun

{"title":"On the compatibility of surgical implants of bioresorbable magnesium alloys with medical devices of titanium alloys","authors":"P. Myagkikh, E. Merson, V. Poluyanov, D. Merson, M. E. Begun","doi":"10.18323/2782-4039-2022-3-1-106-114","DOIUrl":"https://doi.org/10.18323/2782-4039-2022-3-1-106-114","url":null,"abstract":"Self-resorbable implants made of magnesium alloys, unlike the traditional implants made of titanium alloys and stainless steels, have the ability to completely dissolve in the human body, which makes it possible to eliminate the need for a recurrent operation to extract them. The issue of the possibility of using magnesium implants in the combination with products made of titanium alloys remains insufficiently studied at the moment. At the same time, it is widely known that the elements such as titanium and iron, with a potential more positive than magnesium, have a disastrous influence on the corrosion of magnesium alloys, since magnesium dissolves much faster due to the galvanic effect. This work is aimed to determine how the distance to a titanium implant affects the corrosion rate of a ZX10 magnesium alloy sample with an ultra-fine grain structure. As it is an issue of medical application, the authors carried out the corrosion tests within the conditions simulating the human body conditions: the corrosion medium circulation and keeping temperature within 37±1 °C. The authors used physiological solution as a corrosion medium. During corrosion testing, a titanium implant was placed in three, six, and twelve centimeters from the magnesium alloy sample; and the control tests were also carried out without a titanium implant. According to the obtained data, at a distance of 3 cm, the galvanic effect between titanium and magnesium manifests itself strongly, increasing the corrosion rate and the size of corrosion damage, but at a distance of 6 cm, the titanium implant does not have a visible effect on the corrosion of a sample.","PeriodicalId":251458,"journal":{"name":"Frontier materials & technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115087520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Frontier materials &amp; technologies最新文献

Frontier materials & technologies最新文献