Fatigue crack growth in two TWIP steels with different stacking fault energies
文献类型：期刊论文
| 作者 | Yang, H. K. ; Doquet, V. ; Zhang, Z. F. |
| 刊名 | INTERNATIONAL JOURNAL OF FATIGUE
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 98页码:247-258 |
| 关键词 | TWIP steel Fatigue crack growth Crack closure Mechanical twinning Kinematic hardening |
| ISSN号 | 0142-1123 |
| 通讯作者 | Doquet, V (reprint author), Univ Paris Saclay, Lab Mecan Solides, Ecole Polytech, CNRS UMR7649, F-91128 Palaiseau, France. |
| 中文摘要 | Fatigue crack growth tests with R = 0 and 0.4 were carried out on Fe-22Mn-0.6C and Fe-22Mn-0.6C-3A1 (wt.%) Twinning-Induced Plasticity (TWIP) steels with stacking fault energies around 21.5 and 37 ml/m(2), respectively. The former exhibits more crack closure effects, partly due to stronger asperity-induced closure. Strain-controlled push-pull tests followed by scanning electron microscope observations show that both steels are prone to mechanical twinning under low-cycle fatigue, associated with an increasing kinematic hardening. Twinning is however more profuse in Fe-22Mn-0.6C steel. Elastic-plastic finite elements simulations of crack growth, using specific constitutive equations able to capture the increasing kinematic hardening suggest that plasticity-induced crack closure is lower in Fe-22Mn-0.6C steel. Even after closure corrections, the Al-free steel, exhibits a lower resistance to fatigue crack growth, which is attributed to a pronounced strain localisation at the crack tip, and maybe also to environment effects. (C) 2017 Elsevier Ltd. All rights reserved. |
| 学科主题 | Engineering, Mechanical ; Materials Science, Multidisciplinary |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Sciences (CAS); Centre National de la Recherche Scientifique (CNRS) |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78170]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Yang, H. K.,Doquet, V.,Zhang, Z. F.. Fatigue crack growth in two TWIP steels with different stacking fault energies[J]. INTERNATIONAL JOURNAL OF FATIGUE,2017,98:247-258. |
| APA | Yang, H. K.,Doquet, V.,&Zhang, Z. F..(2017).Fatigue crack growth in two TWIP steels with different stacking fault energies.INTERNATIONAL JOURNAL OF FATIGUE,98,247-258. |
| MLA | Yang, H. K.,et al."Fatigue crack growth in two TWIP steels with different stacking fault energies".INTERNATIONAL JOURNAL OF FATIGUE 98(2017):247-258. |
入库方式： OAI收割
来源：金属研究所
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