On low-temperature strength and tensile ductility of bulk metallic glass composites containing stable or shape memory ,B-Ti crystals

doi:10.1016/j.actamat.2021.117444

CORC > 金属研究所 > 中国科学院金属研究所

	On low-temperature strength and tensile ductility of bulk metallic glass composites containing stable or shape memory ,B-Ti crystals
	Zhang, Long 1; Zhang, Jinhao 1; Ke, Haibo 2; Sun, Baoan 2,3; Zhu, Zhengwang 1; Wang, Yandong 4; Li, Hong 1; Wang, Aimin 1; Zhang, Haifeng 1
刊名	ACTA MATERIALIA
	2022
卷号	222 页码:11
关键词	Bulk metallic glass composites Shape memory crystals Low-temperature properties Strength-ductility trade-off Deformation-induced martensitic transformation
ISSN号	1359-6454
DOI	10.1016/j.actamat.2021.117444
通讯作者	Sun, Baoan(sunba@iphy.ac.cn) ; Wang, Yandong(ydwang@ustb.edu.cn) ; Zhang, Haifeng(hfzhang@imr.ac.cn)
英文摘要	Bulk metallic glass composites (BMGCs) with in-situ formed crystals can display tensile ductility at room temperature, overcoming brittleness of monolithic bulk metallic glasses (BMGs). However, the ductility and toughness of BMGCs severely deteriorate at low temperatures, which has been a longstanding bottleneck hindering their low-temperature applications. Here, the low-temperature tensile properties of two Ti-based BMGCs containing stable ,B-Ti crystals with dislocation-mediated plasticity (Fe1) or shape memory ,B-Ti crystals (Fe0) were investigated. With temperature decreasing from 298 to 77 K, the strength of Fe1 increases but its tensile ductility decreases. In comparison, the shape memory Fe0 BMGC exhibits a simultaneous enhancement of strength and tensile ductility as temperature decreases from 298 to 143 K. The superior low-temperature properties of Fe0 are attributed to its combined structure of a glassy matrix and shape memory crystals. As temperature decreasing, the glassy matrix possesses an increased strength which softens as shear bands form, and the shape memory crystals are more inclined to deformation-induced martensitic transformation. Therefore, the combination of characteristic properties of metallic glasses and shape memory crystals in shape memory BMGCs can successfully overcome the low-temperature brittleness. These findings are believed to facilitate the development of BMGCs with superior low-temperature properties and promote their applications at low temperatures. (c) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[52171164] ; National Natural Science Foundation of China[51790484] ; National Natural Science Foundation of China[51822107] ; National Natural Science Foundation of China[52074257] ; National Key Research and Development Program of China[2018YFB0703402] ; National Key Research and Development Program of China[2018YFA0703603] ; Natural Science Foundation of Liaoning Province[2021-MS-0 09] ; Liaoning Revitalization Talents Program[XLYC1802078] ; Liaoning Revitalization Talents Program[XLYC1807062] ; Chinese Academy of Sciences[ZDBS-LY-JSC023] ; Youth Innovation Promotion Association CAS[2021188]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000722898100005
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; Natural Science Foundation of Liaoning Province ; Liaoning Revitalization Talents Program ; Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/167509]
专题	金属研究所_中国科学院金属研究所
通讯作者	Sun, Baoan; Wang, Yandong; Zhang, Haifeng
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 4.Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Long,Zhang, Jinhao,Ke, Haibo,et al. On low-temperature strength and tensile ductility of bulk metallic glass composites containing stable or shape memory ,B-Ti crystals[J]. ACTA MATERIALIA,2022,222:11.
APA	Zhang, Long.,Zhang, Jinhao.,Ke, Haibo.,Sun, Baoan.,Zhu, Zhengwang.,...&Zhang, Haifeng.(2022).On low-temperature strength and tensile ductility of bulk metallic glass composites containing stable or shape memory ,B-Ti crystals.ACTA MATERIALIA,222,11.
MLA	Zhang, Long,et al."On low-temperature strength and tensile ductility of bulk metallic glass composites containing stable or shape memory ,B-Ti crystals".ACTA MATERIALIA 222(2022):11.