A semi-quantitative explanation of the cold dwell effect in titanium alloys
文献类型：期刊论文
| 作者 | Xi, Guoqiang1,2; Lei, Jiafeng1,2; Qiu, Jianke2; Ma, Yingjie2; Yang, Rui1,2 |
| 刊名 | MATERIALS & DESIGN
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 194页码:12 |
| 关键词 | Titanium alloys Cold dwell effect Plastic strain Hysteresis energy density Fatigue life prediction |
| ISSN号 | 0264-1275 |
| DOI | 10.1016/j.matdes.2020.108909 |
| 通讯作者 | Lei, Jiafeng(jflei@imr.ac.cn) |
| 英文摘要 | Cold dwell fatigue has become one critical issue in titanium industry over the past decades. Though some reports have emphasized the importance of time-dependent plastic strain on cold dwell effect in titanium alloys, the mathematical relationship between plastic strain and fatigue life has never been discussed because plastic strain changes continuously no matter in normal cyclic fatigue or dwell fatigue. In this paper, a series of fatigue tests under constant plastic strain is designed to investigate the mathematical relationship between plastic strain and fatigue life in titanium alloys at room temperature in air. Results show that plastic strain has a definitely detrimental effect on fatigue life in titanium alloys. Different from the traditional qualitative mechanisms, one semi-quantitative explanation for cold dwell effect in titanium alloys is proposed by introducing hysteresis energy density. |
| 资助项目 | National Natural Science Foundation of China[51701219] ; National Key R&D Program of China[2016YFC0304200] ; National Key R&D Program of China[2017YFC0305501] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000571737900003 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; National Key R&D Program of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/140598]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Lei, Jiafeng |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xi, Guoqiang,Lei, Jiafeng,Qiu, Jianke,et al. A semi-quantitative explanation of the cold dwell effect in titanium alloys[J]. MATERIALS & DESIGN,2020,194:12. |
| APA | Xi, Guoqiang,Lei, Jiafeng,Qiu, Jianke,Ma, Yingjie,&Yang, Rui.(2020).A semi-quantitative explanation of the cold dwell effect in titanium alloys.MATERIALS & DESIGN,194,12. |
| MLA | Xi, Guoqiang,et al."A semi-quantitative explanation of the cold dwell effect in titanium alloys".MATERIALS & DESIGN 194(2020):12. |
入库方式： OAI收割
来源：金属研究所
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