Crack initiation and propagation dominated by strain localization in quasi-single crystal and poly-crystalline of a Ni-based complex concentrated alloy

doi:10.1016/j.matchar.2023.112973

IMR OpenIR

	Crack initiation and propagation dominated by strain localization in quasi-single crystal and poly-crystalline of a Ni-based complex concentrated alloy
	Huang, Zhaowen 1,2,3; Li, Xiangwei 2; Wen, Donghui 1,3; Guo, Qiujuan 2; Wang, Anding 1,4; Dong, Jiasheng 5; Kong, Fengyu 1; Hou, Xiaodong 2; Li, Yusheng 6; Wang, Biao 1; Zhu, Yuntian 4
通讯作者	Wang, Anding(anding.w@dgut.edu.cn) ; Hou, Xiaodong(xiaodong.hou@hotmail.com) ; Wang, Biao(wangbiao@mail.sysu.edu.cn)
	2023-07-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	201 页码:12
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.
关键词	Carbide Complex concentrated alloy Cracking Ductility Fracture mechanism
资助者	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
DOI	10.1016/j.matchar.2023.112973
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:001004557400001
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178154
专题	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.Dongguan Univ Technol, Res Inst Interdisciplinary Sci, Sch Mat Sci & Engn, Dongguan 523808, Peoples R China 2.Ctr Excellence Adv Mat, Dongguan 523808, Peoples R China 3.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, 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.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China 6.Nanjing Univ Sci & Technol, Nano & Heterogeneous Struct Mat Ctr, Sch Mat Sci & Engn, Nanjing 210094, 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.