Tuning the microstructure and metastability of beta-Ti for simultaneous enhancement of strength and ductility of Ti-based bulk metallic glass composites

doi:10.1016/j.actamat.2019.02.002

IMR OpenIR

	Tuning the microstructure and metastability of beta-Ti for simultaneous enhancement of strength and ductility of Ti-based bulk metallic glass composites
	Zhang, L.1,2; Narayan, R. L.3; Fu, H. M.1,2; Ramamurty, U.3; Li, W. R.2; Li, Y. D.1,2; Zhang, H. F.1
通讯作者	Ramamurty, U.(uram@ntu.edu.sg) ; Zhang, H. F.(hfzhang@imr.ac.cn)
	2019-04-15
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	168 页码:24-36
摘要	A parametric experimental study on the role played by the size, metastability, and volume fraction of the dendritic beta-Ti phase on the tensile properties of amorphous matrix composites is conducted. Towards this end, several bulk metallic glass composites (BMGCs) with varying compositions were synthesized, processed under different cooling rates and tensile tested. Results show that the stress induced martensitic transformation, from beta to alpha '', of the dendritic Ti phase enhances the resistance to shear band propagation and, in turn, imparts significant strain hardening capability to the composite. This transformation was found to be favored in BMGCs in which the size of the dendrites is relatively coarse and Co content is similar to 1 at.%. Furthermore, a volume fraction of the dendritic phase between 34% and 45% was found to result in optimum combination of strength and ductility. The utility of these microstructural design principles learned from this study was demonstrated by design, synthesis, and testing of a BMGC containing transformable beta-Ti with a volume fraction of-38% that simultaneously exhibits high strength and ductility. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	Bulk metallic glass composite Tensile plasticity Work-hardening Martensitic transformation Strength
资助者	National Natural Science Foundation of China ; National Key Research and Development Program of China ; China Postdoctoral Science Foundation ; Dongguan Innovative Research Team Program
DOI	10.1016/j.actamat.2019.02.002
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51701213] ; National Natural Science Foundation of China[51790484] ; National Natural Science Foundation of China[51531005] ; National Key Research and Development Program of China[2018YFB0703402] ; China Postdoctoral Science Foundation[2018M633005] ; Dongguan Innovative Research Team Program[2014607134]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000464086500003
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：110[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/321006/132901
专题	中国科学院金属研究所
通讯作者	Ramamurty, U.; Zhang, H. F.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Dongguan EONTEC Co Ltd, Qingxi Town 523662, Guangdong, Peoples R China 3.Nanyang Technol Univ, Dept Mech & Aerosp Engn, Singapore 637331, Singapore
推荐引用方式 GB/T 7714	Zhang, L.,Narayan, R. L.,Fu, H. M.,et al. Tuning the microstructure and metastability of beta-Ti for simultaneous enhancement of strength and ductility of Ti-based bulk metallic glass composites[J]. ACTA MATERIALIA,2019,168:24-36.
APA	Zhang, L..,Narayan, R. L..,Fu, H. M..,Ramamurty, U..,Li, W. R..,...&Zhang, H. F..(2019).Tuning the microstructure and metastability of beta-Ti for simultaneous enhancement of strength and ductility of Ti-based bulk metallic glass composites.ACTA MATERIALIA,168,24-36.
MLA	Zhang, L.,et al."Tuning the microstructure and metastability of beta-Ti for simultaneous enhancement of strength and ductility of Ti-based bulk metallic glass composites".ACTA MATERIALIA 168(2019):24-36.