Fatigue in martensitic 100Cr6: Relationship between rolling contact fatigue microstructural transitions and repetitive push testing

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:614

Article

Kang, Jee-Hyun¹  Rivera-Diaz-del-Castillo, Pedro E. J.¹ 

[1] Univ Cambridge, Dept Mat Sci & Met, SKF Univ Technol Ctr, Cambridge CB3 0FS, England

关键词: Fatigue;    Martensite;    Steel;    Hardening;    Strain measurements;    Hardness measurement;   

DOI  :  10.1016/j.msea.2014.06.107

来源: Elsevier

【 摘 要 】

Repetitive uniaxial fatigue testing is introduced to reproduce a similar magnitude of compressive stress to rolling contact during bearing operation, and to investigate the associated microstructural transitions. During the test, the strain per cycle responsible for fatigue damage can be measured. The observed hardness increase suggests that the developed residual stress level is similar to that formed on ball-on-rod bearing testing. The suggested methodology would be helpful in determining the strain responsible for plastic deformation in rolling contact fatigue, as well as for appraising the quality of bearing materials employed for bearing elements. (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

Free