Uspekhi Fiziki Metallov-Progress in Physics of Metals最新文献

{"title":"Features of Strain Hardening of Heterogeneous Aluminium Alloys to Enhance the Fatigue Durability","authors":"O. Zasimchuk, M. Chausov, B. Mordyuk, O. Baskova, V. Zasimchuk, T. Turchak, O. Gatsenko","doi":"10.15407/ufm.22.04.619","DOIUrl":"https://doi.org/10.15407/ufm.22.04.619","url":null,"abstract":"Heterogeneous aluminium alloys are in demand in the aviation industry, where the ability of the material to withstand fatigue loads is important. The topic of the article is the search for the most experimentally available methods of deformation effect on such materials in order to increase fatigue life. Unfortunately, previous studies were ambiguous due to the large number of factors influencing the fatigue of metal materials under the same type of mechanical load; so, we chose a dynamic load with pulse loading. It turned out that for heterogeneous 2024-T351 and D16CzATW alloys, shock–vibration loading (SVL) applied during static straining prolongs their further fatigue life at a certain magnitude of the deformation during the action of the pulse. For example, for the 2024-T351 alloy at the maximum stress of alternating load σmax = 400 MPa, the longest fatigue life should be expected at deformations εimp = 2–4%; and at the maximum stress of alternating (fatigue) loading of 440 MPa, it is at εimp = 3–5%. In comparison with the average values of fatigue life of the D16CzAT alloy in the initial state, fatigue life after processing increases at σmax = 340 MPa alloy by 11.6%, at a stress of σmax = 370 MPa, by 18.4%, at a stress of σmax = 400 MPa, by 21.2%. The positive effect of long-term exposure after treatment on fatigue life was also noted. The influence of the strengthening phases, such as the nanosize Θ-Al2Cu and S-CuAl2Mg particles, on the separate stages of pre-treatment of alloys and the effects of their quantities on total fatigue durability is investigated by statistical methods of transmission electron microscopy. The great attention is paid to the mechanism of formation of fatigue fracture embryos in the near-surface areas of the samples, for which analytical calculations and the experimental method of ultrasonic impact treatment (UIT) are used. It is shown that the use of UIT after SVL does not affect the fatigue life of the 2024-T351 alloy at a fatigue load frequency of 15 Hz, while the single UIT increases fatigue life of the alloy. It is concluded that the use of complex deformation loads accelerates the relaxation processes, which shorten fatigue life.","PeriodicalId":41786,"journal":{"name":"Uspekhi Fiziki Metallov-Progress in Physics of Metals","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44548949","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}

{"title":"Microstructure Evolution of the Carbon Steels During Surface Severe Plastic Deformation","authors":"M. Vasylyev, B. Mordyuk, S. Voloshko, D. Lesyk","doi":"10.15407/ufm.22.04.562","DOIUrl":"https://doi.org/10.15407/ufm.22.04.562","url":null,"abstract":"The review is devoted to the state-of-the-art views on the microstructure evolution in structural and tool carbon steels during the surface severe plastic deformation (SPD). The main focus is on the effects of the nanocrystallization in the near-surface area of the low-carbon steel (C 0.05–0.2%), medium-carbon steel (C 0.35–0.65%), and high-carbon steel (C 1.0–1.5%). It is reviewed the following advanced surface SPD methods for the metal surfaces in recent years: an ultrasonic impact peening (UIP), high-frequency impact peening (HFIP), air blast shot peening (ABSP), surface mechanical attrition treatment (SMAT), and laser shock peening (LSP). Microstructure evolution before and after SPD is studied by optical microscopy (OM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The effects of the SPD parameters on the nanocrystalline modification of such main phase components of the carbon steels as ferrite, pearlite, and cementite are analysed. The atomic mechanism of the nanocrystallization is presented. The strain-hardening effect induced by SPD is demonstrated by the data of the near-surface microhardness profiles.","PeriodicalId":41786,"journal":{"name":"Uspekhi Fiziki Metallov-Progress in Physics of Metals","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43623995","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}

{"title":"TiMn2-Based Intermetallic Alloys for Hydrogen Accumulation: Problems and Prospects","authors":"V. Dekhtyarenko, D. Savvakin, V. Bondarchuk, V. Shyvaniuk, T. Pryadko, O. Stasiuk","doi":"10.15407/ufm.22.03.307","DOIUrl":"https://doi.org/10.15407/ufm.22.03.307","url":null,"abstract":"","PeriodicalId":41786,"journal":{"name":"Uspekhi Fiziki Metallov-Progress in Physics of Metals","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45791837","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}

{"title":"Pressure Welding Through a Layer of Hydrocarbon Substance: Physical Processes of a Diffusion Joint Formation","authors":"O. V. Jartovsky, O. V. Larichkin","doi":"10.15407/ufm.22.03.440","DOIUrl":"https://doi.org/10.15407/ufm.22.03.440","url":null,"abstract":"","PeriodicalId":41786,"journal":{"name":"Uspekhi Fiziki Metallov-Progress in Physics of Metals","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46742182","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}

{"title":"Binary Molybdenum Compounds: Promising Materials for Novel Physics of Superconductivity and Practical Applications","authors":"A. Shapovalov, M. Belogolovskii, O. Boliasova, O. Kordyuk","doi":"10.15407/ufm.22.03.352","DOIUrl":"https://doi.org/10.15407/ufm.22.03.352","url":null,"abstract":"","PeriodicalId":41786,"journal":{"name":"Uspekhi Fiziki Metallov-Progress in Physics of Metals","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47295327","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}

{"title":"Overstressed Nanosecond Discharge in the Gases at Atmospheric Pressure and Its Application for the Synthesis of Nanostructures Based on Transition Metals","authors":"O. Shuaibov, A. Malinina","doi":"10.15407/ufm.22.03.382","DOIUrl":"https://doi.org/10.15407/ufm.22.03.382","url":null,"abstract":"","PeriodicalId":41786,"journal":{"name":"Uspekhi Fiziki Metallov-Progress in Physics of Metals","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43498070","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}

{"title":"Nanoscale Materials for State-of-the-Art Magnetic Memory Technologies","authors":"Arsen E. Hafarov, S. Voloshko, A. Kaidatzis, I. Vladymyrskyi","doi":"10.15407/ufm.22.02.175","DOIUrl":"https://doi.org/10.15407/ufm.22.02.175","url":null,"abstract":"The review deals with different materials science aspects of state-of-the-art magnetic memory technologies, such as magnetoresistive random-access memory (MRAM), antiferromagnetic (AFM) memory, and skyrmion racetrack memory. Particularly, the materials with high perpendicular magnetic anisotropy (PMA), such as CoFeB, L10-ordered Mn- and Fe-based alloys, are considered (Sec. 1) regarding their applications in MRAM technology. Furthermore, studies of AFM alloys, such as FeRh, CuMnAs, Mn2Au, are reviewed (Sec. 2) with an emphasis on the application of these materials in AFM-memory technology. Finally, the last (3rd) section of the review is concerning materials that could be used in skyrmion racetrack memory.","PeriodicalId":41786,"journal":{"name":"Uspekhi Fiziki Metallov-Progress in Physics of Metals","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46347315","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}

{"title":"On the Issue of Alloying and Modification of Alloys: Using the Waste Products for Creation of Novel Materials","authors":"G. Akhmetova, G. Ulyeva, K. Tuyskhan","doi":"10.15407/ufm.22.02.271","DOIUrl":"https://doi.org/10.15407/ufm.22.02.271","url":null,"abstract":"At the large and powerful industrial (private or state) enterprises of the world, particularly, Kazakhstan, RF, and some other post-Soviet (and not only) countries, the products are manufactured using obsolete technologies with high wastes’ generation. At that, the storage and warehousing are unorganized and technically unreasonable (wastes of different chemical compositions and hazard class are mixed) that does not allow their further efficient recycling. Increased processing of many industrial and household wastes is not only economical, but also considerably improves the environmental situation, significantly reduces the consumption of natural raw materials, and reduces the use of scarce lands for waste storage [1]. The authors of this article carried out a literary review on this topic and attempted to use microsilica, as a waste of silicon production, to create new materials with special properties. This refers to the field of experimental study of structures, phases, structural components for understanding the processes of alloying, modification, diffusion, etc. Understanding physical thinking from the metal physics point of view in the study of the nature and kinetics of the phase transformations, alloying, and modification processes enables using the physical research methods to solve research and technological problems in metallurgy and materials science in order to predict and change the required set of properties. The method of research in this article is electron microscopy as the simplest and fastest method of obtaining information about the microstructure, elemental composition, and distribution of components in the bulk.","PeriodicalId":41786,"journal":{"name":"Uspekhi Fiziki Metallov-Progress in Physics of Metals","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41361775","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}

{"title":"Fundamental Research on the Structure and Properties of Electroerosion-Resistant Coatings on Copper","authors":"D. Romanov, V. Pochetukha, V. Gromov, K. Sosnin","doi":"10.15407/ufm.22.02.204","DOIUrl":"https://doi.org/10.15407/ufm.22.02.204","url":null,"abstract":"The electroerosion-resistant coatings of CuO–Ag and ZnO–Ag systems were obtained on the Cu surface. The formation of the coating was caused by the processing of copper surface with a plasma formed in the electrical explosion of silver foil with a weighed sample of copper oxide or zinc oxide. After electroexplosion spraying, the electron-beam treatment of coatings was performed. The nanohardness, Young modulus, wear resistance, friction coefficient, and electrical erosion resistance of the formed coatings were studied. All studied properties exceed those of copper. Electrical erosion coatings were studied by the methods of scanning electron microscopy, transmission electron microscopy, and atomic force microscopy. It became possible to achieve the high level of operational properties of electrical erosion coatings due to their nanostructurization. Structure of coating is formed by cells of high-speed crystallization. The size of cells varies within the range from 150 nm to 400 nm. The cells are separated by interlayers of the second phase whose thickness varies as 15–50 nm. By method of atomic force microscopy, the separate particles of ZnO or CuO of different shapes and 10–15 nm in size chaotically located in silver matrix were revealed as well as spherical particles of ZnO or CuO in size of 2–5 nm. The total thickness of coatings is 60 μm. The complex of studies we have carried out permits to recommend the integrated processing for strengthening the switch copper contacts of powerful electrical networks.","PeriodicalId":41786,"journal":{"name":"Uspekhi Fiziki Metallov-Progress in Physics of Metals","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45868406","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}

{"title":"Physical Regularities for Cellular Precipitation of Co-, Cu-, and Pb-Based Supersaturated Solid Solutions","authors":"M. Savchuk, O. Filatov, O. Shmatko","doi":"10.15407/ufm.22.02.250","DOIUrl":"https://doi.org/10.15407/ufm.22.02.250","url":null,"abstract":"The decomposition of supersaturated solid solutions through the cellular mechanism is considered in terms of the physical regularities of this phenomenon. The general characteristics of this process are described. The mechanisms of nucleation and subsequent cell growth, as well as kinetic parameters of processes, are partially described. The influences of some external factors on the cellular precipitation process and its stages are characterized. Particularly, the effects of annealing temperature and a third element on the cellular precipitation process are studied.","PeriodicalId":41786,"journal":{"name":"Uspekhi Fiziki Metallov-Progress in Physics of Metals","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48448121","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}