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Superplastic forming of EK61 nickel-based superalloy with ultrafine-grained structure 超细晶组织EK61镍基高温合金的超塑性成形
IF 0.7
Letters on Materials Pub Date : 2022-12-01 DOI: 10.22226/2410-3535-2022-4-439-444
R. Safiullin, V. Valitov, R. Lutfullin, E. Galieva, E. Klassman
{"title":"Superplastic forming of EK61 nickel-based superalloy with ultrafine-grained structure","authors":"R. Safiullin, V. Valitov, R. Lutfullin, E. Galieva, E. Klassman","doi":"10.22226/2410-3535-2022-4-439-444","DOIUrl":"https://doi.org/10.22226/2410-3535-2022-4-439-444","url":null,"abstract":"","PeriodicalId":45792,"journal":{"name":"Letters on Materials","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44200953","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
Electron-ion-plasma boriding of a multilayer nanostructural high-entropy alloy 多层纳米结构高熵合金的电子-离子-等离子体渗硼
IF 0.7
Letters on Materials Pub Date : 2022-12-01 DOI: 10.22226/2410-3535-2022-4-433-438
Y. Ivanov, V. Shugurov, E. Petrikova, N. Prokopenko, A. Teresov, O. Tolkachev
{"title":"Electron-ion-plasma boriding of a multilayer nanostructural high-entropy alloy","authors":"Y. Ivanov, V. Shugurov, E. Petrikova, N. Prokopenko, A. Teresov, O. Tolkachev","doi":"10.22226/2410-3535-2022-4-433-438","DOIUrl":"https://doi.org/10.22226/2410-3535-2022-4-433-438","url":null,"abstract":"The structure and properties of a high-entropy alloy (HEA) subjected to saturation with boron atoms by a combined electron-ion-plasma method are characterized. On a HEA film of 5 μm thickness deposited on AISI 304 steel, a film (boron + chromium) with a thickness of 1 μm was deposited and then the system “(Cr + B) film / (HEA film deposited on AISI 304 steel) substrate” was irradiated with a pulsed electron beam. It is shown that the wear resistance of the resulting alloy is more than 30 times higher than that of the original HEA film. The microhardness of the alloy is 10.5 % higher than that of HEA in the initial state. It has been revealed that irradiation of the system with a pulsed electron beam leads to the formation of a multi-element surface alloy of composition (at.%) 5.8Al-11.6Ti-12.9Cr-13.0Fe-2.4Ni-13.1Cu-10.4Zr-8.8Nb, the rest (22 at.%) is oxygen and boron. Thus, seven-element HEA of non-stoichiometric composition, the concentration of metal elements of which varies within (5.8 –13.0) at.%, and additionally containing atoms of nickel, oxygen and boron was formed. It has been established that the high tribological and strength properties of the surface alloy are due to the formation of a multiphase submicron-nanocrystalline structure of high-speed cellular crystallization in the modified layer 6 µm thick. High-speed crystallization is accompanied by alloy delamination with the formation of extended interlayers enriched with copper atoms located along the boundaries of crystallization cells.","PeriodicalId":45792,"journal":{"name":"Letters on Materials","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43924478","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
Interaction of an edge dislocation with a 〈110〉 tilt boundary in nickel: molecular dynamics simulation 镍中边缘位错与Φ110°倾斜边界的相互作用：分子动力学模拟
IF 0.7
Letters on Materials Pub Date : 2022-12-01 DOI: 10.22226/2410-3535-2022-4-303-308
G. Poletaev, Yuriy Bebikhov, A. Semenov, R. Rakitin
{"title":"Interaction of an edge dislocation with a 〈110〉 tilt boundary in nickel: molecular dynamics simulation","authors":"G. Poletaev, Yuriy Bebikhov, A. Semenov, R. Rakitin","doi":"10.22226/2410-3535-2022-4-303-308","DOIUrl":"https://doi.org/10.22226/2410-3535-2022-4-303-308","url":null,"abstract":"","PeriodicalId":45792,"journal":{"name":"Letters on Materials","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45403121","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
Microstructure of the deposited NiCrBSiC coating after laser polishing 激光抛光沉积NiCrBSiC涂层的微观结构
IF 0.7
Letters on Materials Pub Date : 2022-12-01 DOI: 10.22226/2410-3535-2022-4-287-291
L. Afanasieva, I. Pavlov
{"title":"Microstructure of the deposited NiCrBSiC coating after laser polishing","authors":"L. Afanasieva, I. Pavlov","doi":"10.22226/2410-3535-2022-4-287-291","DOIUrl":"https://doi.org/10.22226/2410-3535-2022-4-287-291","url":null,"abstract":"","PeriodicalId":45792,"journal":{"name":"Letters on Materials","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49248494","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
Influence of the thickness of a nonmagnetic layer on the coupled dynamics of magnetic vortices in a spin-transfer nanooscillator 非磁层厚度对自旋转移纳米振荡器中磁涡耦合动力学的影响
IF 0.7
Letters on Materials Pub Date : 2022-12-01 DOI: 10.22226/2410-3535-2022-4-327-331
V. Mukhamadeeva, S. Stepanov, K. Zvezdin, E. Ekomasov
{"title":"Influence of the thickness of a nonmagnetic layer on the coupled dynamics of magnetic vortices in a spin-transfer nanooscillator","authors":"V. Mukhamadeeva, S. Stepanov, K. Zvezdin, E. Ekomasov","doi":"10.22226/2410-3535-2022-4-327-331","DOIUrl":"https://doi.org/10.22226/2410-3535-2022-4-327-331","url":null,"abstract":"","PeriodicalId":45792,"journal":{"name":"Letters on Materials","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48669686","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
Mechanical properties of Al-Nb in situ metal-matrix composites fabricated by constrained high pressure torsion at 10 GPa and subsequent annealing 10gpa约束高压扭转和退火制备Al-Nb原位金属基复合材料的力学性能
IF 0.7
Letters on Materials Pub Date : 2022-12-01 DOI: 10.22226/2410-3535-2022-4-360-366
K. Nazarov, G. Korznikova, R. Khisamov, R. Timiryaev, E. Korznikova, G. Khalikova, R. Shayakhmetov, S. Sergeyev, R. Kabirov, R. Mulyukov
{"title":"Mechanical properties of Al-Nb in situ metal-matrix composites fabricated by constrained high pressure torsion at 10 GPa and subsequent annealing","authors":"K. Nazarov, G. Korznikova, R. Khisamov, R. Timiryaev, E. Korznikova, G. Khalikova, R. Shayakhmetov, S. Sergeyev, R. Kabirov, R. Mulyukov","doi":"10.22226/2410-3535-2022-4-360-366","DOIUrl":"https://doi.org/10.22226/2410-3535-2022-4-360-366","url":null,"abstract":"","PeriodicalId":45792,"journal":{"name":"Letters on Materials","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48893824","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 and theoretical study of the conditions for the formation of carbon nanostructures in an arc discharge in helium, argon and nitrogen 对氦、氩、氮电弧放电中碳纳米结构形成的条件进行了实验和理论研究
IF 0.7
Letters on Materials Pub Date : 2022-12-01 DOI: 10.22226/2410-3535-2022-4-321-326
S. Sakhapov, V. Andryushchenko, E. Boyko, Mikhail Skirda, D. Smovzh
{"title":"Experimental and theoretical study of the conditions for the formation of carbon nanostructures in an arc discharge in helium, argon and nitrogen","authors":"S. Sakhapov, V. Andryushchenko, E. Boyko, Mikhail Skirda, D. Smovzh","doi":"10.22226/2410-3535-2022-4-321-326","DOIUrl":"https://doi.org/10.22226/2410-3535-2022-4-321-326","url":null,"abstract":"","PeriodicalId":45792,"journal":{"name":"Letters on Materials","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48210225","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
Electric arc synthesis of magnetic Mn-Fe-C nanoparticles 磁性锰铁碳纳米颗粒的电弧合成
IF 0.7
Letters on Materials Pub Date : 2022-12-01 DOI: 10.22226/2410-3535-2022-4-475-479
D. Smovzh, M. Skirda, S. Sakhapov
{"title":"Electric arc synthesis of magnetic Mn-Fe-C nanoparticles","authors":"D. Smovzh, M. Skirda, S. Sakhapov","doi":"10.22226/2410-3535-2022-4-475-479","DOIUrl":"https://doi.org/10.22226/2410-3535-2022-4-475-479","url":null,"abstract":"","PeriodicalId":45792,"journal":{"name":"Letters on Materials","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46137866","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
True fracture stress of UFG samples of Al 6101 alloy Al - 6101合金UFG试样的真断裂应力
IF 0.7
Letters on Materials Pub Date : 2022-12-01 DOI: 10.22226/2410-3535-2022-4-424-427
D. Gunderov, S. Gunderova, D. Magomedova
{"title":"True fracture stress of UFG samples of Al 6101 alloy","authors":"D. Gunderov, S. Gunderova, D. Magomedova","doi":"10.22226/2410-3535-2022-4-424-427","DOIUrl":"https://doi.org/10.22226/2410-3535-2022-4-424-427","url":null,"abstract":"","PeriodicalId":45792,"journal":{"name":"Letters on Materials","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46293313","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
Rationale for signs of transformation in iron near 200°C 铁在200°C附近有转变迹象的基本原理
IF 0.7
Letters on Materials Pub Date : 2022-12-01 DOI: 10.22226/2410-3535-2022-4-298-302
K. Shakhnazarov, Evgeniy Pryakhin, E. Troshina
{"title":"Rationale for signs of transformation in iron near 200°C","authors":"K. Shakhnazarov, Evgeniy Pryakhin, E. Troshina","doi":"10.22226/2410-3535-2022-4-298-302","DOIUrl":"https://doi.org/10.22226/2410-3535-2022-4-298-302","url":null,"abstract":"","PeriodicalId":45792,"journal":{"name":"Letters on Materials","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41367203","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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