Effect of grain size on fatigue strength of 304 stainless steel-Reference-Cited by-同舟云学术

Effect of grain size on fatigue strength of 304 stainless steel

Published:2024-01-01 Issue:1 Volume:43 Page:
ISSN:2191-0324
Container-title:High Temperature Materials and Processes
language:en
Short-container-title:

Author:

Duan Hongyan¹,Zhang Zengwang¹,Zhao Yingjian¹,Liu Yang¹,Yue Sunqiang¹,He Hong¹

Affiliation:

1. College of Mechanical and Electrical Engineering, Lanzhou University of Technology , Lanzhou , 730050 , China

Abstract

Abstract In this study, three types of 304 stainless steel samples with different strengths were prepared by refining the grain size through rolling. The microstructure of the samples was observed by electron microscopy. The influence of grain size on the static tensile properties and fatigue strength of the material is mainly attributed to changes in the plastic deformation fracture mechanism and micro-deformation mechanism. In addition, a new fatigue strength prediction model is proposed based on the influence of tensile strength and work-hardening capacity. Compared with the staircase method and Basquin formula models, the proposed model maintains the accuracy of fatigue strength prediction while reducing the cost of fatigue experiments. This provides a new approach for predicting the fatigue strength of specific materials and improving anti-fatigue design capabilities.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/htmp-2022-0314/pdf

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