Temperature-induced ductile-to-brittle transition of bulk metallic glasses

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	Temperature-induced ductile-to-brittle transition of bulk metallic glasses
	Li G; Jiang MQ(蒋敏强); Jiang F; He L; Sun J
刊名	APPLIED PHYSICS LETTERS
	2013-04-29
通讯作者邮箱	jiangfeng@mail.xjtu.edu.cn
卷号	102 期号:17 页码:171901/1-171901/4
关键词	Brittle fracture Ductile fracture Tensile strength Bulk metallic glass Critical shear strengths Cryogenic temperatures Ductile-to-brittle transition Macroscopic fractures Temperature-induced Uniaxial compressive tests Zr based bulk metallic glass
ISSN号	0003-6951
通讯作者	Jiang, F (reprint author), Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China.
产权排序	[Li, G.; Jiang, F.; He, L.; Sun, J.] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China; [Jiang, M. Q.] Chinese Acad Sci, State Kay Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China
合作状况	国内
中文摘要	Uniaxial tensile and uniaxial compressive tests for Zr-based bulk metallic glasses (BMGs) were conducted at room and cryogenic temperatures, respectively. It was observed that both the change of macroscopic fracture mode from ductile shear fracture to brittle normal tensile fracture and microscopic fracture feature from micron-scaled vein patterns to nano-scaled dimples with decreasing test temperatures were identified, indicating a significant ductile-to-brittle transition (DBT) behavior. The mechanism of DBT behavior was revealed by the competition between the intrinsic critical shear strength tau(0) and critical tensile strength sigma(0) at different temperatures.
学科主题	固体力学
分类号	一类
收录类别	SCI ; EI
资助信息	National Natural Science Foundation of China (NSFC) [51171138, 51171137, 11002144]; Ph.D. Programs Foundation of Ministry of Education of China [20110201110002]; National Basic Research Program of China [2010CB631003]
原文出处	http://dx.doi.org/10.1063/1.4803170
语种	英语
WOS记录号	WOS:000318553000017
公开日期	2013-06-14
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/47291]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Li G,Jiang MQ,Jiang F,et al. Temperature-induced ductile-to-brittle transition of bulk metallic glasses[J]. APPLIED PHYSICS LETTERS,2013,102(17):171901/1-171901/4.
APA	Li G,蒋敏强,Jiang F,He L,&Sun J.(2013).Temperature-induced ductile-to-brittle transition of bulk metallic glasses.APPLIED PHYSICS LETTERS,102(17),171901/1-171901/4.
MLA	Li G,et al."Temperature-induced ductile-to-brittle transition of bulk metallic glasses".APPLIED PHYSICS LETTERS 102.17(2013):171901/1-171901/4.