Tribologia: Finnish Journal of Tribology最新文献

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STAND FOR TRIBOLOGICAL STUDIES OF HIP JOINTENDOPROSTHESIS WITH THE POSSIBILITY OF CHANGINGACETABULUM ANTEVERSION ANGLE AND HEAD ANTI TORSIONANGLE 支持改变髋臼前倾角和头抗扭转角的髋关节假体的摩擦学研究
Tribologia: Finnish Journal of Tribology Pub Date : 2022-12-30 DOI: 10.5604/01.3001.0016.1618
T. Wiśniewski, M. Libera, Ł. Łapaj
{"title":"STAND FOR TRIBOLOGICAL STUDIES OF HIP JOINT\u0000ENDOPROSTHESIS WITH THE POSSIBILITY OF CHANGING\u0000ACETABULUM ANTEVERSION ANGLE AND HEAD ANTI TORSION\u0000ANGLE","authors":"T. Wiśniewski, M. Libera, Ł. Łapaj","doi":"10.5604/01.3001.0016.1618","DOIUrl":"https://doi.org/10.5604/01.3001.0016.1618","url":null,"abstract":"The article presents the construction of a hip joint movement simulator intended for friction and wear studies\u0000of hip joint endoprostheses. The simulator's design enables the fixing of hip endoprosthesis components\u0000in accordance with the anatomical structure of the human hip joint. The endoprosthesis head is mounted\u0000on a special base in the lower position with a neck-shaft angle of 135°, while the acetabular cup of the\u0000endoprosthesis is mounted in the upper part of the mounting head with an inclination angle of 45°. The\u0000production of three heads (responsible for the anteversion angle of the acetabulum) and three special bases\u0000(responsible for the anti torsion angle of the head) with different fixing angles of the components of the hip\u0000joint endoprosthesis made it possible to carry out tribological tests with nine variants of alignment settings.\u0000The hip joint endoprosthesis tester is designed to simulate the following movements: flexion and extension,\u0000as well as loads occurring in the human hip joint while walking. Thanks to the use of control in the form of\u0000electronic cams, the simulator makes it possible to recreate the variable value of the force loading the friction\u0000pair as a function of the human walking cycle.\u0000The subject of friction and wear studies were hip joint endoprostheses with a head diameter of 44 mm, made\u0000of high-carbon Co28Cr6Mo alloy. For each of the nine variants of endoprosthesis component alignment\u0000settings, average friction coefficient values were calculated based on the recorded values of the friction\u0000torque. The results of the friction and wear studies employing the simulator confirm that the mutual angle\u0000alignment setting of the head and the cup has an impact on the value of the frictional resistance occurring in\u0000the tribological pair.\u0000\u0000","PeriodicalId":35004,"journal":{"name":"Tribologia: Finnish Journal of Tribology","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82271065","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
A CONTRIBUTION TO THE KNOWLEDGE OF SYNERGY IN TRIBOLOGY 对摩擦学协同知识的贡献
Tribologia: Finnish Journal of Tribology Pub Date : 2022-12-30 DOI: 10.5604/01.3001.0016.1617
Przemysław Tyczewski, W. Zwierzycki, A. Stachowiak, Wiesław Ulbrich
{"title":"A CONTRIBUTION TO THE KNOWLEDGE OF SYNERGY IN TRIBOLOGY","authors":"Przemysław Tyczewski, W. Zwierzycki, A. Stachowiak, Wiesław Ulbrich","doi":"10.5604/01.3001.0016.1617","DOIUrl":"https://doi.org/10.5604/01.3001.0016.1617","url":null,"abstract":"The article contains information about the knowledge of synergism in tribology systems. Two examples of\u0000analyses of synergism in tribology systems are presented in the article. In the first example, the interaction\u0000coefficient (synergy coefficient) was used to evaluate a set of engine and gear oils composed of special\u0000lubricating (surface-active) additives to improve the galling load – a measure of boundary layer strength,\u0000evaluated on a 4-ball apparatus. Using the interaction coefficient, a 12-element set of oils (compositions) was\u0000\"separated\" into three groups: synergism with additives (KS>1), sometimes strong, at Ks=2, neutral interaction\u0000(KN=1), antagonism with additives (KA<1). Analysis of test results using the synergism coefficient also makes\u0000it possible to select the optimal additive concentration in commercial oil. In the second case, a three-factor\u0000system was analysed, in which the resultant (undesirable) characteristic was a measure of mechanicalcorrosion-\u0000abrasive wear of metal parts. In specially designed experiments, the components of total wear\u0000derived from the three underlying factors (mechanical, corrosion and environmental), and the interaction\u0000between them was determined. The contribution of the sum component of the mechanical-corrosion-abrasive\u0000interactions was found to range from 40 to 50% of the total wear (at 50%, there is a strong synergism KS=1).\u0000\u0000","PeriodicalId":35004,"journal":{"name":"Tribologia: Finnish Journal of Tribology","volume":"126 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87788917","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 PROCEDURE OF SELECTING THE VALUES OF THE WORK CONDITIONPARAMETERS OF THE BALL-CRATERING METHOD FOR THE ASSESSMENTOF RESISTANCE TO ABRASIVE WEAR 选择用于评定磨料耐磨性的球磨法的工作条件参数值的程序
Tribologia: Finnish Journal of Tribology Pub Date : 2022-12-30 DOI: 10.5604/01.3001.0016.1609
E. Osuch-Słomka, Z. Słomka
{"title":"THE PROCEDURE OF SELECTING THE VALUES OF THE WORK CONDITION\u0000PARAMETERS OF THE BALL-CRATERING METHOD FOR THE ASSESSMENT\u0000OF RESISTANCE TO ABRASIVE WEAR","authors":"E. Osuch-Słomka, Z. Słomka","doi":"10.5604/01.3001.0016.1609","DOIUrl":"https://doi.org/10.5604/01.3001.0016.1609","url":null,"abstract":"In the example of the CrN coating deposited by the cathodic arc evaporation (CAE) method on two differently\u0000prepared substrates, the procedure for selecting the values of the work condition parameters of the ballcratering\u0000method was presented. The procedure was developed thanks to applying an individual experiment\u0000design from Taguchi's approach and has not been used to determine the values of the parameters of the\u0000operating conditions of the test friction node for tribological tests. The procedure, according to Taguchi,\u0000allowed us to determine the values of the parameters for assessing the abrasion resistance of anti-wear\u0000coatings, with the use of a much smaller number of tests, compared to the methods used so far and a repetitive\u0000wear mechanism.\u0000The starting point of the presented procedure was selecting the area of the permissible values of the operating\u0000parameters, in the ball-cratering method, in which optimal values were searched for to minimise the relative\u0000error in determining the diameters of wear marks craters. After determining the area of limit values, an\u0000experiment plan was generated in which the variables were: load, rotational speed, minimum friction path,\u0000and maximum friction path. The results of abrasive wear tests performed with the ball-cratering method, in\u0000accordance with the developed test procedure for the CrN coating – were deposited on the substrate after heat\u0000treatment and the substrate after the nitriding process had been successfully verified.\u0000\u0000","PeriodicalId":35004,"journal":{"name":"Tribologia: Finnish Journal of Tribology","volume":"85 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83995625","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
CONCEPT FOR A RESEARCH METHODOLOGY OF SURFACETOPOGRAPHY – TESTING AND ANALYSIS OF TRIBOLOGICALWEAR TRACES 表面形貌学研究方法的概念——摩擦学磨损痕迹的测试和分析
Tribologia: Finnish Journal of Tribology Pub Date : 2022-12-30 DOI: 10.5604/01.3001.0016.1607
M. Niemczewska-Wójcik
{"title":"CONCEPT FOR A RESEARCH METHODOLOGY OF SURFACE\u0000TOPOGRAPHY – TESTING AND ANALYSIS OF TRIBOLOGICAL\u0000WEAR TRACES","authors":"M. Niemczewska-Wójcik","doi":"10.5604/01.3001.0016.1607","DOIUrl":"https://doi.org/10.5604/01.3001.0016.1607","url":null,"abstract":"The methodology of surface topography research plays a key role in identifying and describing the wear\u0000mechanism, including the tribological wear traces. In the published literature, wear traces are most often\u0000described based on the surface morphology created in the operation process (microscopic image – optical\u0000microscope OM, scanning electron microscope SEM, atomic force microscope AFM); less frequently used\u0000are 2D profile description (contact or non-contact profilometer) or 3D topography (profilometer, confocal\u0000microscope, interference microscope, focus variation microscope). Each method of testing the worn surface\u0000has its own characteristics and purposefulness of use. The combination of different methods enables a\u0000comprehensive assessment of the surface topography created in the operation process and the characterisation\u0000of tribological wear traces.\u0000This work presents the main issues in the range of research methodology of the surface topography created\u0000in the operation process (operated/worn surface topography) – the purpose of research, research programme,\u0000research methods and tools, analysis of research results (quantitative – parametric and qualitative – nonparametric).\u0000The research methodology of the surface topography and tribological wear traces is presented\u0000on selected examples. The method of conducting a comprehensive analysis, including all elements – surface\u0000morphology, 2D profile analysis and 3D topographic analysis – is discussed.\u0000\u0000","PeriodicalId":35004,"journal":{"name":"Tribologia: Finnish Journal of Tribology","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73721548","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
INDUSTRIAL SCALING OF LOW-FRICTION HYBRID LAYERTECHNOLOGY ON PISTON RINGS 活塞环上低摩擦混合层技术的工业规模
Tribologia: Finnish Journal of Tribology Pub Date : 2022-12-30 DOI: 10.5604/01.3001.0016.1605
P. Kula, R. Pietrasik, S. Pawęta, J. Komorowski
{"title":"INDUSTRIAL SCALING OF LOW-FRICTION HYBRID LAYER\u0000TECHNOLOGY ON PISTON RINGS","authors":"P. Kula, R. Pietrasik, S. Pawęta, J. Komorowski","doi":"10.5604/01.3001.0016.1605","DOIUrl":"https://doi.org/10.5604/01.3001.0016.1605","url":null,"abstract":"Technological trials of gas sulphonitriding processes for cast iron piston rings were carried out as an alternative\u0000to chromium electroplating for the production of low-friction layers. The effectiveness of different ways of\u0000packing heat treatment charges in minimising or eliminating deformation of the rings was compared, and\u0000the effectiveness of ring packing with restraining tooling was confirmed. The maximum duration of the gas\u0000sulphonitriding process was determined at 1 hour, both as a stand-alone process and as a component process\u0000in a multi-stage technology for the manufacture of low-friction hybrid layers, ensuring the maintenance of\u0000sufficient ring toughness for an opening during assembly.\u0000\u0000","PeriodicalId":35004,"journal":{"name":"Tribologia: Finnish Journal of Tribology","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87465088","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
DURABILITY INVESTIGATION OF A DISC-TYPE CLUTCHWITH ELECTRORHEOLOGICAL FLUID 电流变液盘式离合器的耐久性研究
Tribologia: Finnish Journal of Tribology Pub Date : 2022-12-30 DOI: 10.5604/01.3001.0016.1608
Artur Olszak
{"title":"DURABILITY INVESTIGATION OF A DISC-TYPE CLUTCH\u0000WITH ELECTRORHEOLOGICAL FLUID","authors":"Artur Olszak","doi":"10.5604/01.3001.0016.1608","DOIUrl":"https://doi.org/10.5604/01.3001.0016.1608","url":null,"abstract":"The article concerns experimental research on the durability of a viscotic disc-type clutch with an\u0000electrorheological fluid. Viscotic clutches are currently used in the power transmission of multiple\u0000machines. The development of the viscotic clutch design is possible due to the use of working fluids with\u0000electrorheological properties, which renders it possible to control the drivetrain with the use of an electric\u0000current. The durability of the clutches with electrorheological fluid is important in determining the possibility\u0000of industrial use. On the basis of bench tests of a viscotic disc clutch, the article presents considerations\u0000regarding the operating factors of the clutch. These factors considerably impact the durability of the clutch\u0000and its components, including the working fluid.\u0000\u0000","PeriodicalId":35004,"journal":{"name":"Tribologia: Finnish Journal of Tribology","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86324349","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
EXPERIMENTAL STUDY OF SURFACE ROUGHNESS EFFECT ONTHE RHEOLOGICAL BEHAVIOR OF MR FLUID 表面粗糙度对磁流变液流变特性影响的实验研究
Tribologia: Finnish Journal of Tribology Pub Date : 2022-12-30 DOI: 10.5604/01.3001.0016.1614
Barbara Stępień, W. Horak
{"title":"EXPERIMENTAL STUDY OF SURFACE ROUGHNESS EFFECT ON\u0000THE RHEOLOGICAL BEHAVIOR OF MR FLUID","authors":"Barbara Stępień, W. Horak","doi":"10.5604/01.3001.0016.1614","DOIUrl":"https://doi.org/10.5604/01.3001.0016.1614","url":null,"abstract":"Magnetorheological (MR) fluids are classified as smart materials. They are non-homogeneous substances of\u0000complex composition and are characterised by complex rheological properties. In addition, the characteristics\u0000of their behaviour can be actively affected by the magnetic field, both in terms of its value and spatial\u0000orientation. This paper presents the results of shear stress measurements of a commercial magnetorheological\u0000fluid using a plate-plate type geometry with a modified working surface. The purpose of the study was to\u0000determine the effect of changing the roughness of the measuring plate on the obtained shear stress results.\u0000Controlled shear rate tests and Magneto Sweep measurements were carried out for three MR fluid layer\u0000heights. The tests were carried out at magnetic field induction in the range of 0 to 680 mT. The study showed\u0000that the measurement system's geometric parameters significantly affect the MR fluid's behaviour under test.\u0000It was shown that increasing the surface roughness can increase or decrease the measured value of shear stress\u0000depending on the test parameters.\u0000\u0000","PeriodicalId":35004,"journal":{"name":"Tribologia: Finnish Journal of Tribology","volume":"40 7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77509848","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 COMPARATIVE ANALYSIS OF ECOLOGICAL LUBRICANTS 生态润滑油的对比分析
Tribologia: Finnish Journal of Tribology Pub Date : 2022-12-30 DOI: 10.5604/01.3001.0016.1604
J. Drabik, R. Kozdrach, M. Wolszczak, Grzegorz Duszyński, Mariusz Piątkowski
{"title":"THE COMPARATIVE ANALYSIS OF ECOLOGICAL LUBRICANTS","authors":"J. Drabik, R. Kozdrach, M. Wolszczak, Grzegorz Duszyński, Mariusz Piątkowski","doi":"10.5604/01.3001.0016.1604","DOIUrl":"https://doi.org/10.5604/01.3001.0016.1604","url":null,"abstract":"On the base of rheological tests, the resistance to deformation of lubricants elaborated on the base of Crambe\u0000abyssinica seed oil was evaluated. The developed lubricants were subjected to thermal and mechanical\u0000stresses, which allowed the evaluation of their resistance to the oxidation process and anti-wear properties.\u0000After tests, the rheological properties of tested lubricants were carried out by determining the complex modulus\u0000in oscillation tests. On the base of the rheological parameter, the resistance of lubricants to deformation and\u0000change of this indicator under the influence of thermal and mechanical stresses was evaluated. The carried out\u0000analysis of changes in the G* complex modulus showed that the tested lubricants show a different resistance\u0000to deformation depending on their type and depending on the impact of the extortion. It was found that the\u0000rheological index (complex modulus G*) determined in oscillation tests can be a successful criterion for the\u0000quality of pro-ecological lubricants.\u0000\u0000","PeriodicalId":35004,"journal":{"name":"Tribologia: Finnish Journal of Tribology","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72901001","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
EFFECT OF DEEP CRYOGENIC TREATMENT TIMEON MICROMECHANICAL AND TRIBOLOGICAL PROPERTIESOF MAGNESIUM ALLOYS WE43 AND WE54 深冷处理时间对we43和we54镁合金微观力学和摩擦学性能的影响
Tribologia: Finnish Journal of Tribology Pub Date : 2022-12-30 DOI: 10.5604/01.3001.0016.1603
A. Barylski, K. Aniołek
{"title":"EFFECT OF DEEP CRYOGENIC TREATMENT TIME\u0000ON MICROMECHANICAL AND TRIBOLOGICAL PROPERTIES\u0000OF MAGNESIUM ALLOYS WE43 AND WE54","authors":"A. Barylski, K. Aniołek","doi":"10.5604/01.3001.0016.1603","DOIUrl":"https://doi.org/10.5604/01.3001.0016.1603","url":null,"abstract":"The paper presents the effect of deep cryogenic treatment time on micromechanical and tribological\u0000properties of magnesium alloys, WE43 and WE54. The alloys were subjected to deep cryogenic treatment\u0000at a liquid nitrogen temperature (-196°C) for 2 to 48h. Tribological tests were performed in a rotational\u0000and a reciprocating linear motion, and wear trace studies were performed by profilometric and microscopic\u0000measurements. The tests indicate that deep cryogenic treatment has a favourable effect on the micromechanical,\u0000mechanical and tribological parameters of the two investigated alloys. It has also been shown that sub-zero\u0000treatment time significantly impacts the cryogenic treatment result. Among other things, there was a nearly\u000010% increase in hardness, Young's modulus, and a 35% reduction in tribological volumetric wear resulting\u0000from the improvement in mechanical properties, as well as a 2-fold reduction in linear wear with an increase\u0000in sub-zero treatment time relative to the material in its as-delivered state. Deep cryogenic treatment with\u0000appropriately selected sub-zero treatment time allows for improving the service life of magnesium alloys with\u0000rare earth metals.\u0000\u0000","PeriodicalId":35004,"journal":{"name":"Tribologia: Finnish Journal of Tribology","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73801340","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
MICROSTRUCTURAL AND MICROMECHANICAL TESTSOF TITANIUM CROWNS 钛冠的显微结构和显微力学试验
Tribologia: Finnish Journal of Tribology Pub Date : 2022-12-30 DOI: 10.5604/01.3001.0016.1610
W. Ryniewicz, Ł. Bojko, P. Pałka, Piotr Osada, A. Ryniewicz
{"title":"MICROSTRUCTURAL AND MICROMECHANICAL TESTS\u0000OF TITANIUM CROWNS","authors":"W. Ryniewicz, Ł. Bojko, P. Pałka, Piotr Osada, A. Ryniewicz","doi":"10.5604/01.3001.0016.1610","DOIUrl":"https://doi.org/10.5604/01.3001.0016.1610","url":null,"abstract":"Fixed prosthetic restorations must meet the health requirements in terms of the protection of the tissues of the\u0000oral cavity, biomechanical requirements for optimal tissue stress and the strength and wear resistance of the\u0000structure, aesthetic requirements related to the location of the gingival margin, as well as the shape, thickness,\u0000and colour of the veneers. The aim is to evaluate the impact of manufacturing technology on the microstructure\u0000and micromechanical parameters of titanium crowns. The material of the analysis are prosthetic crowns made\u0000of Ti6Al4V alloy for the maxilla premolars and the mandible molars, produced using two technologies:\u0000Selective Laser Melting (SLM) and CAD/CAM milling. Crown structures were evaluated on the basis of\u0000examinations of the microstructure and surface layer of the chamfers, micromechanical parameters in axial\u0000sections perpendicular to the dental arches, and the accuracy of mapping the internal shape in sections with\u0000horizontal planes perpendicular to the axis of the abutment tooth. The results of this work can be used in a\u0000clinical setting. They allow the evaluation of what is the impact of the technology of producing the supporting\u0000substructure on the structure of the prosthetic crown. The strength requirements in both technologies are met,\u0000while the higher value of the microhardness of the titanium SLM substructure, compared to the milled one,\u0000increases the stiffness of the structure under conditions of biomechanical excitation. The errors in mapping\u0000the internal shape of the crowns are comparable and slightly higher during sintering.\u0000\u0000","PeriodicalId":35004,"journal":{"name":"Tribologia: Finnish Journal of Tribology","volume":"357 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82626833","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
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