Temperature dependence of pressure sensitive flow in bulk metallic glass composites

doi:10.1016/j.jmst.2023.09.028

IMR OpenIR

	Temperature dependence of pressure sensitive flow in bulk metallic glass composites
	Saini, Priyanka 1; Zhao, Yakai 2,3; Li, Biao 4; Zhang, Long 4; Ramamurty, U.2,3; Narayan, R. L.1
通讯作者	Zhang, Long(zhanglong@imr.ac.cn) ; Narayan, R. L.(rlnarayan@iitd.ac.in)
	2024-05-10
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	181 页码:165-175
摘要	The constraint factor, C , defined as hardness, H , to the yield strength, ay , ratio, is an indirect measure of the pressure sensitivity in materials. Previous investigations determined that while C is less than 3 for crystalline materials, and remains invariant with change in temperature, it is greater than 3 for bulk metallic glasses (BMGs) and increases with increasing temperature, below their glass transition temperature, T g . In this study, the variations in C for two BMG composites (BMGCs), which have an amorphous matrix and in situ precipitated crystalline ,B-Ti dendrites, which in one case transforms under stress to a"-Ti and deforms by slip in the other, as a function of temperature are examined and compared with that of a BMG. For this purpose, instrumented indentation tests, with a Berkovich tip, and uniaxial compression tests were performed to measure the H and ay , respectively, on all alloys and their constituents at temperatures in the range of 0.48 T g and 0.75 T g . ay and H of the BMGC with transforming dendrites (BMGC-T) increase and remain invariant with increasing temperature, respectively. Alternately, in BMG and the BMGC with non-transforming dendrites (BMGC -NT), the same properties decrease with increasing temperature. BMGC-T has the highest C of -4.93 whereas that of BMGC -NT and BMG are -3.72 and -3.28, respectively, at 0.48 T g . With increasing temperature, C of the BMG and BMGC -NT increases with temperature, but that of the BMGC-T decreases. The values of C and their variations as a function of temperature were explained by studying the variation of pressure sensitivity of the amorphous phase and concluding that the plastic flow in BMGCs under constrained conditions, such as indentation, is controlled by the flow resistance of the amorphous matrix whereas that in uniaxial compression, which is only partially constrained, is controlled by plasticity in both the dendrites and matrix. (c) 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Bulk metallic glass composites Hardness Pressure sensitivity Martensitic transformation
资助者	Science and Engineering Research Board, Department of Science Technology ; Prime Minister Fellowship (PMRF) ; National Natural Science Foundation of China ; National Key Laboratory of Science and Technology on Materials under Shock and Impact ; Youth Innovation Promotion Association CAS
DOI	10.1016/j.jmst.2023.09.028
收录类别	SCI
语种	英语
资助项目	Science and Engineering Research Board, Department of Science Technology[SRG/2020/000095] ; Prime Minister Fellowship (PMRF)[PMRF/2021/1401226] ; National Natural Science Foundation of China[52171164] ; National Key Laboratory of Science and Technology on Materials under Shock and Impact[WDZC2022-13] ; Youth Innovation Promotion Association CAS[2021188]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001125586900001
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：2[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/321006/182865
专题	中国科学院金属研究所
通讯作者	Zhang, Long; Narayan, R. L.
作者单位	1.Indian Inst Technol, Dept Mat Sci & Engn, Delhi 110016, India 2.Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore 3.ASTAR, Inst Mat Res & Engn, Singapore 138634, Singapore 4.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Saini, Priyanka,Zhao, Yakai,Li, Biao,et al. Temperature dependence of pressure sensitive flow in bulk metallic glass composites[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,181:165-175.
APA	Saini, Priyanka,Zhao, Yakai,Li, Biao,Zhang, Long,Ramamurty, U.,&Narayan, R. L..(2024).Temperature dependence of pressure sensitive flow in bulk metallic glass composites.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,181,165-175.
MLA	Saini, Priyanka,et al."Temperature dependence of pressure sensitive flow in bulk metallic glass composites".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 181(2024):165-175.