Local chemical order enables an ultrastrong and ductile high-entropy alloy in a cryogenic environment

doi:10.1126/sciadv.adq6398

IMR OpenIR

	Local chemical order enables an ultrastrong and ductile high-entropy alloy in a cryogenic environment
	Sun, Lifang 1; He, Zhufeng 1; Jia, Nan 1; Guo, Yanxin 1; Jiang, Shuang 2; Yang, Yuliang 1; Liu, Yuxin 1; Guan, Xianjun 3; Shen, Yongfeng 4; Yan, Hai-Le 1; Liaw, Peter K.5
通讯作者	Jia, Nan(jian@atm.neu.edu.cn) ; Shen, Yongfeng(shenyf@smm.neu.edu.cn) ; Yan, Hai-Le(yanhaile@mail.neu.edu.cn)
	2024-11-29
发表期刊	SCIENCE ADVANCES
ISSN	2375-2548
卷号	10 期号:48 页码:12
摘要	Owing to superior strength-ductility combination and great potential for applications in extreme conditions, high-entropy alloys (HEAs) with the face-centered cubic (FCC) structure have drawn enormous attention. However, the FCC structure limits yield strength and makes the alloys unable to meet ever-increasing demands for exploring the universe. Here, we report a strategy to obtain FCC materials with outstanding mechanical properties in both ambient and cryogenic environments, via exploiting dynamic development of the interstitial-driven local chemical order (LCO). Dense laths composed of the multiscaled LCO domains evolve from planar-slip bands that form in the prior thermomechanical processing, contributing to ultrahigh yield strengths over a wide temperature range. During cryogenic tensile deformation, LCO further develops and promotes remarkable dislocation cross-slip. Together with the deformation-driven transformation and twinning, these factors lead to satisfactory work hardening. The cryogenic loading-promoted LCO, also revealed by ab initio calculations, opens an avenue for designing advanced cryogenic materials.
资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; NSF ; Army Research Office
DOI	10.1126/sciadv.adq6398
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52371097] ; National Natural Science Foundation of China[52301135] ; National Natural Science Foundation of China[51922026] ; Fundamental Research Funds for the Central Universities[N2325029] ; NSF[DMR-1611180] ; NSF[1809640] ; NSF[2226508] ; Army Research Office[W911NF-13-1-0438] ; Army Research Office[W911NF-19-2-0049]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001402032000014
出版者	AMER ASSOC ADVANCEMENT SCIENCE
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180308
专题	中国科学院金属研究所
通讯作者	Jia, Nan; Shen, Yongfeng; Yan, Hai-Le
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China 2.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 4.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China 5.Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA
推荐引用方式 GB/T 7714	Sun, Lifang,He, Zhufeng,Jia, Nan,et al. Local chemical order enables an ultrastrong and ductile high-entropy alloy in a cryogenic environment[J]. SCIENCE ADVANCES,2024,10(48):12.
APA	Sun, Lifang.,He, Zhufeng.,Jia, Nan.,Guo, Yanxin.,Jiang, Shuang.,...&Liaw, Peter K..(2024).Local chemical order enables an ultrastrong and ductile high-entropy alloy in a cryogenic environment.SCIENCE ADVANCES,10(48),12.
MLA	Sun, Lifang,et al."Local chemical order enables an ultrastrong and ductile high-entropy alloy in a cryogenic environment".SCIENCE ADVANCES 10.48(2024):12.