Enhancing the plasticity of a Ti-based bulk metallic glass composite by cryogenic cycling treatments

doi:10.1016/j.jallcom.2020.155247

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	Enhancing the plasticity of a Ti-based bulk metallic glass composite by cryogenic cycling treatments
	Du, Yin 1; Han, Weichao 1; Zhou, Qing 1; Xu, Yuhao 2; Zhai, Haimin 3; Bhardwaj, Vipul 1; Wang, Haifeng 1
刊名	Journal of Alloys and Compounds
	2020-09-15
卷号	835
关键词	Cryogenics Endocrinology Glass Plasticity Glass matrices Heterogeneous microstructure Macroscopic structure Multiple shear bands Nano scale Structural heterogeneity Thermal and mechanical properties Ti-based bulk metallic glass
ISSN号	09258388
DOI	10.1016/j.jallcom.2020.155247
英文摘要	The effect of cryogenic cycling treatments on the thermal and mechanical properties of a Ti-based bulk metallic glass (BMG) composite was investigated. Even though the macroscopic structures of the dendrite-phase and glass-matrix remain unchanged, the treated samples exhibited a rejuvenation behavior in terms of a higher relaxation enthalpy, which leads to an enhancement of plasticity as high as 90%. Different from the monolithic BMGs, in which rejuvenation has been attributed to the nanoscale structural heterogeneity, rejuvenation in BMG composite is induced by the crystal/amorphous heterogeneous microstructures. The increasing defects around the interfaces may promote formation of multiple shear bands and accommodation of plastic deformation. This work shows clearly that the cryogenic cycling treatments could be an effective and controllable way to modulate mechanical properties of BMG composites. © 2020 Elsevier B.V.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000538810800017
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115707]
专题	省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, Xi'an; Shaanxi; 710072, China; 2.FAW-Volkswagen Automotive Co. Ltd, Tianjin, China; 3.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Du, Yin,Han, Weichao,Zhou, Qing,et al. Enhancing the plasticity of a Ti-based bulk metallic glass composite by cryogenic cycling treatments[J]. Journal of Alloys and Compounds,2020,835.
APA	Du, Yin.,Han, Weichao.,Zhou, Qing.,Xu, Yuhao.,Zhai, Haimin.,...&Wang, Haifeng.(2020).Enhancing the plasticity of a Ti-based bulk metallic glass composite by cryogenic cycling treatments.Journal of Alloys and Compounds,835.
MLA	Du, Yin,et al."Enhancing the plasticity of a Ti-based bulk metallic glass composite by cryogenic cycling treatments".Journal of Alloys and Compounds 835(2020).