Effect of Volume-Surface Hardening on the Cyclic Strength of Fragments of Solebars of Freight Bogies
- Autores: Nikulin S.A.1, Fedin V.M.2, Rozhnov A.B.1, Rogachev S.O.1, Armizonov A.A.3
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Afiliações:
- NITU “MISiS”
- Moscow State University of Lines of Communication (MIIT)
- MIIT Engineering Company
- Edição: Volume 57, Nº 11-12 (2016)
- Páginas: 678-683
- Seção: Heat Treatment
- URL: https://journals.rcsi.science/0026-0673/article/view/235258
- DOI: https://doi.org/10.1007/s11041-016-9942-6
- ID: 235258
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Resumo
The effect of volume-surface hardening (VSH) on the mechanical properties obtained in static and dynamic cyclic endurance tests of fragments of solebars from steel 20GL is studied. The VSH is shown the raise the mechanical properties of the fragments, i.e., the ultimate strength increases by a factor of 1.6 – 2, the conventional yield strength increases by a factor of 1.3 – 1.6, the bearing capacity increases by a factor of 2.6, the endurance limit increases by 10%, and the cyclic strength (durability) in the presence of a stress concentrator in the form of a notch increases by a factor of 3 at preserved high ductility.
Sobre autores
S. Nikulin
NITU “MISiS”
Autor responsável pela correspondência
Email: nikulin@misis.ru
Rússia, Moscow
V. Fedin
Moscow State University of Lines of Communication (MIIT)
Email: nikulin@misis.ru
Rússia, Moscow
A. Rozhnov
NITU “MISiS”
Email: nikulin@misis.ru
Rússia, Moscow
S. Rogachev
NITU “MISiS”
Email: nikulin@misis.ru
Rússia, Moscow
A. Armizonov
MIIT Engineering Company
Email: nikulin@misis.ru
Rússia, Moscow
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