ВПЛИВ ТЕРМІЧНОГО ЦИКЛУ НАПЛАВЛЕННЯ НА МЕХАНІЧНІ ВЛАСТИВОСТІ ТА ОПІР КРИХКОМУ РУЙНУВАННЮ МЕТАЛУ ЗТВ ЗАЛІЗНИЧНОЇ СТАЛІ М76 (Ukrainian)
In: Automatic Welding / Avtomatitcheskaia Svarka, 2019-12-01, Heft 12, S. 4-11
academicJournal
Zugriff:
Increasing the life of railway wheels is an urgent task. The solution to this problem is associated with the optimization of the structural state of metal of the railway wheels. In the work the influence of cooling rate during melting on mechanical properties, resistance to brittle fracture and structural changes of HAZ of wheel steel with carbonitride strengthening with a carbon content of 0.63% were investigated. It is shown that in the course of surfacing a hardening bainite-martensitic structure is formed, the volume fraction of the structural components in which is determined by the cooling rate. The hardened HAZ metal of wheel steel with carbonitride strengthening has a high strength and a low ductility and has a high tendency to brittle fracture. [ABSTRACT FROM AUTHOR]
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Titel: |
ВПЛИВ ТЕРМІЧНОГО ЦИКЛУ НАПЛАВЛЕННЯ НА МЕХАНІЧНІ ВЛАСТИВОСТІ ТА ОПІР КРИХКОМУ РУЙНУВАННЮ МЕТАЛУ ЗТВ ЗАЛІЗНИЧНОЇ СТАЛІ М76 (Ukrainian)
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Autor/in / Beteiligte Person: | Позняков, В. Д. ; Гайворонський, О. А. ; Костін, В. А. ; Берднікова, О. М. ; Шмигельський, С. В. |
Zeitschrift: | Automatic Welding / Avtomatitcheskaia Svarka, 2019-12-01, Heft 12, S. 4-11 |
Veröffentlichung: | 2019 |
Medientyp: | academicJournal |
ISSN: | 0005-111X (print) |
DOI: | 10.15407/as2019.12.01 |
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