| Localized dislocation interactions within slip bands and crack initiation in Mg-10Gd-3Y-0.3Zr alloy | |
| He, Chao1,2; Li, Xue1; Liu, Yongjie1,2; Wang, Chong1,2; Zhang, Hong1,2; Li, Lang1,2; Wang, Qingyuan1,3; Shao, Xiaohong4; Chen, Qiang5 | |
| Corresponding Author | Liu, Yongjie(liuyongjie@scu.edu.cn) ; Wang, Qingyuan(wangqy@scu.edu.cn) |
| 2021-09-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF FATIGUE
 |
| ISSN | 0142-1123 |
| Volume | 150Pages:10 |
| Abstract | The underlying low-stress cyclic deformation and associated dislocation activities within the slip bands (SBs) in a rare earth-containing magnesium (RE-Mg) alloy were characterized. The results show that basal slip is the predominant deformation at grain scale, but the gliding of (c + a) dislocation is also visible near grain boundaries to accommodate localized inhomogeneous deformation. The interaction between basal (a) dislocations and nonbasal (c + a) dislocations results in the nucleation of dislocation intensity zones (DIZs), which subsequently hinders the development of the basal slip bands. Therefore, it is suggested that the DIZs contributed to the enhanced high cycle fatigue resistance of RE-Mg alloys. |
| Keyword | Fatigue crack initiation Slip bands Magnesium alloy Dislocation intensity zone (c plus a) dislocation |
| Funding Organization | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Sichuan University & ZiGong government Support Program |
| DOI | 10.1016/j.ijfatigue.2021.106302 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[12072212] ; National Natural Science Foundation of China[11832007] ; National Key Research and Development Program of China[2018YFE0307104] ; Sichuan University & ZiGong government Support Program[2019-CDZG-4] |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Mechanical ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000663091500002 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/160502 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Yongjie; Wang, Qingyuan |
| Affiliation | 1.Sichuan Univ, Coll Architecture & Environm, Key Lab Deep Earth Sci & Engn, Minist Educ, Chengdu 610065, Peoples R China 2.Sichuan Univ, Key Lab Sichuan Prov, Failure Mech & Engn Disaster Prevent & Mitigat, Chengdu 610065, Peoples R China 3.Chengdu Univ, Sch Architecture & Civil Engn, Chengdu 610106, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 5.Kyushu Univ, Fac Engn, Fatigue & Fracture Mat Lab, Fukuoka 8190395, Japan |
| Recommended Citation GB/T 7714 | He, Chao,Li, Xue,Liu, Yongjie,et al. Localized dislocation interactions within slip bands and crack initiation in Mg-10Gd-3Y-0.3Zr alloy[J]. INTERNATIONAL JOURNAL OF FATIGUE,2021,150:10. |
| APA | He, Chao.,Li, Xue.,Liu, Yongjie.,Wang, Chong.,Zhang, Hong.,...&Chen, Qiang.(2021).Localized dislocation interactions within slip bands and crack initiation in Mg-10Gd-3Y-0.3Zr alloy.INTERNATIONAL JOURNAL OF FATIGUE,150,10. |
| MLA | He, Chao,et al."Localized dislocation interactions within slip bands and crack initiation in Mg-10Gd-3Y-0.3Zr alloy".INTERNATIONAL JOURNAL OF FATIGUE 150(2021):10. |
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