Effect of stress ratio on very high cycle fatigue properties of Ti-10V-2Fe-3Al alloy with duplex microstructure
文献类型：期刊论文
| 作者 | Wu, Y; Liu, JR; Wang, H; Guan, SX; Yang, R; Xiang, HF |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 34期号:7页码:1189-1195 |
| ISSN号 | 1005-0302 |
| 关键词 | Ti-10V-2Fe-3Al alloy Very high cycle fatigue S-N curve Fatigue crack initiation Life controlling process |
| DOI | 10.1016/j.jmst.2017.11.036 |
| 英文摘要 | In fatigue critical applications, Ti-10V-2Fe-3Al alloy components are expected to endure cyclic loading with cycles above 10(9). To assess their operating safety, S-N relations of Ti-10V-2Fe-3Al alloy in very high cycle fatigue (VHCF) regime are of concern and have been investigated in this work. Fatigue behavior including S-N curves and crack initiation mechanisms is reported. Two transitions of fatigue crack initiation mechanism, from internal crack initiation to surface crack initiation and from alpha(p) cleavage to alpha(s)/beta decohesion, occur when the stress ratio (R) and stress level are reduced. Fatigue limits exist at N-f = 6 x 10(7) cycles for all stress ratios except for 0.5. In the VHCF regime two kinds of internal crack initiation mechanisms exist, i.e., coalescence of cluster of alpha(p) facets and alpha(s)/beta decohesion. Their mutual competition depends on the stress ratio and can be interpreted in terms of different stress character required for promotion on different internal crack initiation mechanism. Small crack propagation is discussed to be life controlling process under the stress ratio range from -0.5 to 0.1 during VHCF regime while under the stress ratio 0.5 VHCF, life almost refers to the life required for crack initiation. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 学科主题 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000434132800016 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/80135]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Jiangsu Univ Sci & Technol, Natl Demonstrat Ctr Expt Mat Sci & Engn Educ, Zhenjiang 212003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Y,Liu, JR,Wang, H,et al. Effect of stress ratio on very high cycle fatigue properties of Ti-10V-2Fe-3Al alloy with duplex microstructure[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(7):1189-1195. |
| APA | Wu, Y,Liu, JR,Wang, H,Guan, SX,Yang, R,&Xiang, HF.(2018).Effect of stress ratio on very high cycle fatigue properties of Ti-10V-2Fe-3Al alloy with duplex microstructure.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(7),1189-1195. |
| MLA | Wu, Y,et al."Effect of stress ratio on very high cycle fatigue properties of Ti-10V-2Fe-3Al alloy with duplex microstructure".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.7(2018):1189-1195. |
入库方式： OAI收割
来源：金属研究所
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