Fatigue-resistant design in low-cycle regime by regulating the micro-structural gradient in a TWIP steel: Modelling and experiment
文献类型：期刊论文
| 作者 | Shao, Chenwei4,5; Zhang, Xinqiang1,4; Zhao, Shuo6; Zhu, Yankun4; Yang, Huajie4,5; Tian, Yanzhong3; Zhang, Zhenjun4,5; Zhang, Peng4,5; An, Xianghai2; Zhang, Zhefeng4,5 |
| 刊名 | INTERNATIONAL JOURNAL OF PLASTICITY
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 159页码:27 |
| ISSN号 | 0749-6419 |
| 关键词 | Low-cycle fatigue Gradient structure Fatigue crack propagation Strain gradient Fatigue life |
| DOI | 10.1016/j.ijplas.2022.103471 |
| 通讯作者 | Shao, Chenwei(chenweishao@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn) |
| 英文摘要 | It remains an intricate problem how to enhance low-cycle fatigue (LCF) performance, in the premise of guaranteeing a relatively high strength (or cyclic stress) which is vital to long-time service, for engineering components. The underlying cause of this puzzle is the lack of prac-tical theory on cracking evolution/life prediction for LCF. In this study, a two-stage constitutive LCF crack growth model was proposed for a homogeneous solid and later developed for graded structures. Based on the model, a material design strategy emphasizing the strength gradient architecture (informally, hard core and soft shell structure) is proposed and analyzed to improve the LCF properties of engineering structural materials, e.g., steels. Experimentally, sharp and gradual strength gradients were carefully introduced into a TWIP steel by a series of well-designed process combinations regarding various (heterogeneous) deformation and annealing treatments. The influences of strength/microstructure and their spatial distributions on the LCF behaviors were systematically investigated. The excellent LCF properties of the TWIP steel with a negative strength gradient are originated from the repeated strengthening and weakening of strain gradient during cyclic loading, which suppresses the fatigue crack initiation and growth. The crack initiation/propagation model developed in this study is conducive and applicable to the LCF life prediction. The theory and process of constructing microstructure gradient, and therefore mechanical property gradient, may provide new and important implications for engineering metals on anti-LCF design. |
| 资助项目 | National Natural Science Foundation of China (NSFC) ; Youth Talent Promotion Project of China Association for Science and Technology ; Youth Innovation Promotion Association CAS ; Distinguished Scholar Project of Institute of Metal Research CAS ; [51801216] ; [52130002] ; [YESS20200120] ; [2022189] ; [2019000179] |
| WOS研究方向 | Engineering ; Materials Science ; Mechanics |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000879553700001 |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Youth Talent Promotion Project of China Association for Science and Technology ; Youth Innovation Promotion Association CAS ; Distinguished Scholar Project of Institute of Metal Research CAS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/176533]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Shao, Chenwei; Zhang, Zhefeng |
| 作者单位 | 1.Univ Sci & Technol, Sch Mat Sci & Engn Taiyuan, Taiyuan 030024, Peoples R China 2.Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia 3.Northeastern Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Peoples R China 4.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 5.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 6.Shenyang Aerosp Univ, Key Lab Fundamental Sci Natl Def Aeronaut Digital, Shenyang 110136, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shao, Chenwei,Zhang, Xinqiang,Zhao, Shuo,et al. Fatigue-resistant design in low-cycle regime by regulating the micro-structural gradient in a TWIP steel: Modelling and experiment[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2022,159:27. |
| APA | Shao, Chenwei.,Zhang, Xinqiang.,Zhao, Shuo.,Zhu, Yankun.,Yang, Huajie.,...&Zhang, Zhefeng.(2022).Fatigue-resistant design in low-cycle regime by regulating the micro-structural gradient in a TWIP steel: Modelling and experiment.INTERNATIONAL JOURNAL OF PLASTICITY,159,27. |
| MLA | Shao, Chenwei,et al."Fatigue-resistant design in low-cycle regime by regulating the micro-structural gradient in a TWIP steel: Modelling and experiment".INTERNATIONAL JOURNAL OF PLASTICITY 159(2022):27. |
入库方式： OAI收割
来源：金属研究所
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