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Atomic faulting induced exceptional cryogenic strain hardening in gradient cell-structured alloy

文献类型：期刊论文

作者Pan, Qingsong2; Yang, Muxin3; Feng, Rui4; Chuang, Andrew Chihpin1; An, Ke4; Liaw, Peter K.5; Wu, Xiaolei3; Tao, Nairong2; Lu, Lei2
刊名SCIENCE
出版日期2023-10-13
卷号382期号:6667页码:185-190
ISSN号0036-8075
DOI10.1126/science.adj3974
通讯作者Lu, Lei(llu@imr.ac.cn)
英文摘要Coarse-grained materials are widely accepted to display the highest strain hardening and the best tensile ductility. We experimentally report an attractive strain hardening rate throughout the deformation stage at 77 kelvin in a stable single-phase alloy with gradient dislocation cells that even surpasses its coarse-grained counterparts. Contrary to conventional understanding, the exceptional strain hardening arises from a distinctive dynamic structural refinement mechanism facilitated by the emission and motion of massive multiorientational tiny stacking faults (planar defects), which are fundamentally distinct from the traditional linear dislocation-mediated deformation. The dominance of atomic-scale planar deformation faulting in plastic deformation introduces a different approach for strengthening and hardening metallic materials, offering promising properties and potential applications.
资助项目National Science Foundation of China (NSFC)[51931010] ; National Science Foundation of China (NSFC)[92163202] ; National Science Foundation of China (NSFC)[52122104] ; National Science Foundation of China (NSFC)[52071321] ; Key Research Program of Frontier Science and International partnership program[GJHZ2029] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences (CAS)[2019196] ; National Science Foundation[DMR-1611180] ; National Science Foundation[1809640] ; National Science Foundation[2226508] ; US Army Research Office[W911NF-13-1-0438] ; US Army Research Office[W911NF-19-2-0049] ; Material Engineering Initiative (MEI) at the Spallation Neutron Source (SNS), Oak Ridge National Laboratory ; NSFC[52071326] ; DOE Office of Science[DE-AC02-06CH11357]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:001112161200028
出版者AMER ASSOC ADVANCEMENT SCIENCE
资助机构National Science Foundation of China (NSFC) ; Key Research Program of Frontier Science and International partnership program ; Youth Innovation Promotion Association of the Chinese Academy of Sciences (CAS) ; National Science Foundation ; US Army Research Office ; Material Engineering Initiative (MEI) at the Spallation Neutron Source (SNS), Oak Ridge National Laboratory ; NSFC ; DOE Office of Science
源URL[http://ir.imr.ac.cn/handle/321006/177162]  
专题金属研究所_中国科学院金属研究所
通讯作者Lu, Lei
作者单位1.Argonne Natl Lab, Adv Photon Source, Lemont, IL 60439 USA
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, State Key Lab Nonlinear Mech Inst Mech, Beijing 100190, Peoples R China
4.Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA
5.Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA
推荐引用方式
GB/T 7714		 Pan, Qingsong,Yang, Muxin,Feng, Rui,et al. Atomic faulting induced exceptional cryogenic strain hardening in gradient cell-structured alloy[J]. SCIENCE,2023,382(6667):185-190.
APA Pan, Qingsong.,Yang, Muxin.,Feng, Rui.,Chuang, Andrew Chihpin.,An, Ke.,...&Lu, Lei.(2023).Atomic faulting induced exceptional cryogenic strain hardening in gradient cell-structured alloy.SCIENCE,382(6667),185-190.
MLA Pan, Qingsong,et al."Atomic faulting induced exceptional cryogenic strain hardening in gradient cell-structured alloy".SCIENCE 382.6667(2023):185-190.

入库方式： OAI收割

来源：金属研究所

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