| Nanograin formation and cracking mechanism in Ti alloys under very high cycle fatigue loading | |
Sun CQ(孙成奇)1,2 ; Wu H(仵涵)1,2; Chi, Weiqian1,3; Wang, Wenjing3; Zhang, Guang-Ping4
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| Corresponding Author | Sun, Chengqi([email protected]) ; Zhang, Guang-Ping([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF FATIGUE
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| 2023-02-01 | |
| Volume | 167Pages:10 |
| ISSN | 0142-1123 |
| Abstract | 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. |
| Keyword | Titanium alloy Very high cycle fatigue Twinning Nanograins Cracking mechanism |
| DOI | 10.1016/j.ijfatigue.2022.107331 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000892574700002 |
| WOS Keyword | INITIATION MECHANISMS ; ULTRAFINE-GRAIN ; TITANIUM ; EVOLUTION ; SURFACE ; MICROSTRUCTURE ; BEHAVIOR ; KINKING ; REGIME ; GROWTH |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Mechanical ; Materials Science, Multidisciplinary |
| Funding Project | National Natural Science Foundation of China Basic Science Center for Multiscale Problems in Nonlinear Mechanics[11988102] ; National Natural Science Foundation of China[91860112] |
| Funding Organization | National Natural Science Foundation of China Basic Science Center for Multiscale Problems in Nonlinear Mechanics ; National Natural Science Foundation of China |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Sun, Chengqi ; Zhang, Guang-Ping |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/91217 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Beijing Jiaotong Univ, Key Lab Vehicle Adv Mfg Measuring & Control Techno, Minist Educ, Beijing 100044, Peoples R China; 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Sun CQ,Wu H,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.Rp_Au:Sun, Chengqi, Zhang, Guang-Ping |
| APA | 孙成奇,仵涵,Chi, Weiqian,Wang, Wenjing,&Zhang, Guang-Ping.(2023).Nanograin formation and cracking mechanism in Ti alloys under very high cycle fatigue loading.INTERNATIONAL JOURNAL OF FATIGUE,167,10. |
| MLA | 孙成奇,et al."Nanograin formation and cracking mechanism in Ti alloys under very high cycle fatigue loading".INTERNATIONAL JOURNAL OF FATIGUE 167(2023):10. |
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| Jp2023Fa121.pdf（22393KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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