The Effect of Microstructure on the Very High Cycle Fatigue Behavior of Ti-6Al-4V Alloy-Reference-Cited by-同舟云学术

The Effect of Microstructure on the Very High Cycle Fatigue Behavior of Ti-6Al-4V Alloy

Published:2024-02-20 Issue:3 Volume:14 Page:254
ISSN:2075-4701
Container-title:Metals
language:en
Short-container-title:Metals

Author:

Yuan Mingyang¹²,Zhao Xinbao¹³^ORCID,Yue Quanzhao¹,Gu Yuefeng¹³,Zhang Ze¹³

Affiliation:

1. Institute of Superalloys Science and Technology, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China

2. Polytechnic Institute, Zhejiang University, Hangzhou 310027, China

3. State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Material Science and Engineering, Zhejiang University, Hangzhou 310027, China

Abstract

Crack initiation plays a major role in very high cycle fatigue (VHCF) life, and the initiation of cracks is related to slip behavior. There is a need for improvement in the understanding of the influence of Ti-6Al-4V microstructures on VHCF performance and crack initiation modes. In this study, through an investigation of Ti-6Al-4V VHCF in equiaxed and bimodal microstructures, two different crack initiation modes were identified. The change in crack initiation mode is related to the variation in microtexture, for which a corresponding model is proposed. The VHCF performance of the bimodal microstructure is significantly improved compared to that of the equiaxed microstructure.

Publisher

MDPI AG

Link

https://www.mdpi.com/2075-4701/14/3/254/pdf

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