High cycle fatigue of isothermally forged Ti-6.5Al-2.2Mo-2.2Zr-1.8Sn-0.7W-0.2Si with different microstructures
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- 作者：Saifei Zhanga ; Weidong Zenga ; zengwd@nwpu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Qinyang Zhaob ; Xiongxiong Gaoa ; Qingjiang Wangc
- 关键词：High cycle fatigue ; Ti-6.5Al-2.2Mo-2.2Zr-1.8Sn-0.7W-0.2Si ; Equiaxed microstructure ; Bi-modal microstructure ; Full lamellar microstructure
- 刊名：Journal of Alloys and Compounds
- 出版年：2016
- 出版时间：25 December 2016
- 年：2016
- 卷：689
- 期：Complete
- 页码：114-122
- 全文大小：3307 K
文摘
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HCF properties for three microstructures were investigated comparatively.
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Fatigue crack initiation sites are found varying with different microstructures.
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Intrinsic strength and effective slip length jointly decide the crack initiation.