Nanograin formation and cracking mechanism in Ti alloys under very high cycle fatigue loading
文献类型：期刊论文
| 作者 | Sun, Chengqi3,4 ; Wu, Han3,4; Chi, Weiqian2,4; Wang, Wenjing2; Zhang, Guang-Ping1; Sun CQ(孙成奇); Wu H(仵涵)
|
| 刊名 | INTERNATIONAL JOURNAL OF FATIGUE
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 167页码:10 |
| ISSN号 | 0142-1123 |
| 关键词 | Titanium alloy Very high cycle fatigue Twinning Nanograins Cracking mechanism |
| DOI | 10.1016/j.ijfatigue.2022.107331 |
| 通讯作者 | Sun, Chengqi(scq@lnm.imech.ac.cn) ; Zhang, Guang-Ping(gpzhang@imr.ac.cn) |
| 英文摘要 | This paper shows that nanograins appear in a locally high-stress region for very high cycle fatigue of TC17 alloy, and twinning is a main contributor to nanograin formation. The locally high stress results in twinning or slip in preferentially oriented alpha grains. Then, the interaction between twin systems or dislocations induces the forma-tion of dislocation cells or walls, nucleation of microbands, and finally the nanograins. As a result, the nanograin regions and the boundaries between the nanograin and coarse grain regions become preferential sites for crack initiation and early growth. The finite element analysis demonstrates the nanograin-related fatigue cracking behavior. |
| WOS关键词 | INITIATION MECHANISMS ; ULTRAFINE-GRAIN ; TITANIUM ; EVOLUTION ; SURFACE ; MICROSTRUCTURE ; BEHAVIOR ; KINKING ; REGIME ; GROWTH |
| 资助项目 | National Natural Science Foundation of China Basic Science Center for Multiscale Problems in Nonlinear Mechanics[11988102] ; National Natural Science Foundation of China[91860112] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000892574700002 |
| 资助机构 | National Natural Science Foundation of China Basic Science Center for Multiscale Problems in Nonlinear Mechanics ; National Natural Science Foundation of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/91216]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Sun, Chengqi; Zhang, Guang-Ping |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Beijing Jiaotong Univ, Key Lab Vehicle Adv Mfg Measuring & Control Techno, Minist Educ, Beijing 100044, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Chengqi,Wu, Han,Chi, Weiqian,et al. Nanograin formation and cracking mechanism in Ti alloys under very high cycle fatigue loading[J]. INTERNATIONAL JOURNAL OF FATIGUE,2023,167:10. |
| APA | Sun, Chengqi.,Wu, Han.,Chi, Weiqian.,Wang, Wenjing.,Zhang, Guang-Ping.,...&仵涵.(2023).Nanograin formation and cracking mechanism in Ti alloys under very high cycle fatigue loading.INTERNATIONAL JOURNAL OF FATIGUE,167,10. |
| MLA | Sun, Chengqi,et al."Nanograin formation and cracking mechanism in Ti alloys under very high cycle fatigue loading".INTERNATIONAL JOURNAL OF FATIGUE 167(2023):10. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。