Crack initiation and propagation dominated by strain localization in quasi-single crystal and poly-crystalline of a Ni-based complex concentrated alloy
文献类型：期刊论文
| 作者 | Huang, Zhaowen1,5,6; Li, Xiangwei1; Wen, Donghui5,6; Guo, Qiujuan1; Wang, Anding4,5; Dong, Jiasheng3; Kong, Fengyu5; Hou, Xiaodong1; Li, Yusheng2; Wang, Biao5 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 201页码:12 |
| 关键词 | Carbide Complex concentrated alloy Cracking Ductility Fracture mechanism |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2023.112973 |
| 通讯作者 | Wang, Anding(anding.w@dgut.edu.cn) ; Hou, Xiaodong(xiaodong.hou@hotmail.com) ; Wang, Biao(wangbiao@mail.sysu.edu.cn) |
| 英文摘要 | Cracking is the precursor of the final fracture for most engineering materials, often affected by various microstructural characteristics including grain orientation, boundary, precipitation, etc. In this study, the fracture behaviour of a typical Ni-based complex concentrated alloy (CCA) was systematically investigated. These CCAs were fabricated using fine-grain casting and directional-solidification processes, which consists of quasi-single crystal (QSC) and poly crystalline structures respectively. Quasi-static tensile test results combined with morphology characterizations and crystal plasticity analyses suggest that microcracks tend to nucleate at the matrix/carbide interfaces in QSC and then propagate along the maximum slip direction at the crack tips. The crack path showed a distinctive zig-zag shape, beneficial for consuming the crack propagation energy. In consideration of carbide morphology, script-typed carbides were found to be very effective in hindering dislocation movements, resulting in admirable work hardening ability. In polycrystalline, however, microcracks are commonly found near the carbides that precipitate at grain boundaries, then developed quickly to connect with each other, leading to premature intergranular fracture. Grain boundary carbides were detrimental to mechanical performance. Considering the large amounts of investigations on second phase and precipitation, these new findings about carbide-related crack behaviours could be extended to other second phase hardening materials, providing new routes to design high-performance alloys by controlling the precipitation morphology and position. |
| 资助项目 | China Postdocotral Science Foundation[2022M710107] ; National Natural Science Science Foundation of China[52101130] ; National Natural Science Science Foundation of China[12150001] ; Ministry of Science and Technology of China[52071180] ; Guangdong Basic and Applied basic Research Foundation[52201175] ; Program for Guandgong Introducing Innovative and Enterprenruial Teams ; NSFC Original Exploration Project ; [2021YFA1200202] ; [2020A1515110952] ; [2016ZT06G025] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001004557400001 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | China Postdocotral Science Foundation ; National Natural Science Science Foundation of China ; Ministry of Science and Technology of China ; Guangdong Basic and Applied basic Research Foundation ; Program for Guandgong Introducing Innovative and Enterprenruial Teams ; NSFC Original Exploration Project |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178153]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Anding; Hou, Xiaodong; Wang, Biao |
| 作者单位 | 1.Ctr Excellence Adv Mat, Dongguan 523808, Peoples R China 2.Nanjing Univ Sci & Technol, Nano & Heterogeneous Struct Mat Ctr, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China 4.City Univ Hong Kong, Hong Kong Inst Adv Study, Coll Sci & Engn, Dept Mat Sci & Engn, Hong Kong 999077, Peoples R China 5.Dongguan Univ Technol, Res Inst Interdisciplinary Sci, Sch Mat Sci & Engn, Dongguan 523808, Peoples R China 6.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Zhaowen,Li, Xiangwei,Wen, Donghui,et al. Crack initiation and propagation dominated by strain localization in quasi-single crystal and poly-crystalline of a Ni-based complex concentrated alloy[J]. MATERIALS CHARACTERIZATION,2023,201:12. |
| APA | Huang, Zhaowen.,Li, Xiangwei.,Wen, Donghui.,Guo, Qiujuan.,Wang, Anding.,...&Zhu, Yuntian.(2023).Crack initiation and propagation dominated by strain localization in quasi-single crystal and poly-crystalline of a Ni-based complex concentrated alloy.MATERIALS CHARACTERIZATION,201,12. |
| MLA | Huang, Zhaowen,et al."Crack initiation and propagation dominated by strain localization in quasi-single crystal and poly-crystalline of a Ni-based complex concentrated alloy".MATERIALS CHARACTERIZATION 201(2023):12. |
入库方式： OAI收割
来源：金属研究所
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