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Deformation Behavior of the Zr53.5Cu26.5Ni5Al12Ag3 Bulk Metallic Glass Over a Wide Range of Strain Rate and Temperatures
Ma, Guangcai; Zhu, Zhengwang; Wang, Zheng; Zhang, Haifeng; gcma@imr.ac.cn
2015
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume31Issue:9Pages:941-945
AbstractThe stress-strain relations for the Zr53.5Cu26.5Ni5Al12Ag3 bulk metallic glass (BMG) over a broad range of temperatures (room temperature to its supercooled liquid region) and strain rates (10(-4) to 10(-1) s(-1)) were established in uniaxial compression using a thermal-mechanical simulation system. The superplastic flow was seen above its glass transition temperature (T-g = 694 K) and strain rates of up to 10(-1) s(-1) from the variation of stress-strain curves. A deformation map of strain rate vs temperature of Zr53.5Cu26.5Ni5Al12Ag3 was obtained, which was mainly composed of homogeneous and inhomogeneous deformation regions, the former featuring either Newtonian or non-Newtonian flow while the latter characterizing linear elastic behavior followed by shear localization, respectively. A phenomenological constitutive equation used to describe a master curve of viscosity with respect to the strain rate was obtained by fitting the experimental results, which determines the viscosity of the present alloy at the temperature near and above Tg. The results show the Zr53.5Cu26.5Ni5Al12Ag3 BMG is the subject suitable for net shape forming process at the supercooled liquid region. Copyright (C) 2015, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. All rights reserved.
description.department[ma, guangcai ; zhu, zhengwang ; zhang, haifeng] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [wang, zheng] shenyang kejin adv mat co ltd, shenyang 110016, peoples r china
KeywordBulk Metallic Glasses Viscosity Deformation Behavior Compression Constitutive Equation
Funding OrganizationOne Hundred Person Project of the Chinese Academy of Sciences; Strategic Priority Research Program of the Chinese Academy of Sciences: SJ10-Recoverable Scientific Experiment Satellite [XDA04020411, XDA04020202-11]; National Basic Research Program of China [2011CB606301]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74709
Collection中国科学院金属研究所
Corresponding Authorgcma@imr.ac.cn
Recommended Citation
GB/T 7714
Ma, Guangcai,Zhu, Zhengwang,Wang, Zheng,et al. Deformation Behavior of the Zr53.5Cu26.5Ni5Al12Ag3 Bulk Metallic Glass Over a Wide Range of Strain Rate and Temperatures[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2015,31(9):941-945.
APA Ma, Guangcai,Zhu, Zhengwang,Wang, Zheng,Zhang, Haifeng,&gcma@imr.ac.cn.(2015).Deformation Behavior of the Zr53.5Cu26.5Ni5Al12Ag3 Bulk Metallic Glass Over a Wide Range of Strain Rate and Temperatures.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,31(9),941-945.
MLA Ma, Guangcai,et al."Deformation Behavior of the Zr53.5Cu26.5Ni5Al12Ag3 Bulk Metallic Glass Over a Wide Range of Strain Rate and Temperatures".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 31.9(2015):941-945.
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