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Unexpected high-temperature brittleness of a Mg-Gd-Y-Ag alloy

文献类型：期刊论文

作者Xiao, Lirong; Chen XF(陈雪飞); Ning, Huiyan; Jiang P(姜萍); Liu, Yi; Chen, Bin; Yin, Dongdi; Zhou, Hao; Zhu, Yuntian
刊名JOURNAL OF MAGNESIUM AND ALLOYS
出版日期2022-09-01
卷号10期号:9页码:2510-2515
关键词Interfacial compounds Formability High temperature brittleness Grain boundary sliding
ISSN号2213-9567
DOI10.1016/j.jma.2021.06.018
通讯作者Yin, Dongdi(ahnydd@swjtu.edu.cn) ; Zhou, Hao(hzhou511@njust.edu.cn)
英文摘要Rare earth (RE) can produce excellent precipitation hardening in Mg alloys. However, when forming a solid solution, it also deteriorates formability, a problem that can usually be overcome by raising deformation temperature. Here we report an unexpected observation of high temperature brittleness in a Mg-Gd-Y-Ag alloy. As the temperature reached 500 degrees C, the formability decreased drastically, leading to severe intergranular fracture under only 0.5% strain. This was caused by failure of grain boundaries, which are weakened by segregated interfacial compounds. (c) 2021 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ) Peer review under responsibility of Chongqing University
分类号一类
WOS关键词GRAIN-BOUNDARY ; MICROSTRUCTURAL EVOLUTION ; HIGH-STRENGTH ; MAGNESIUM ; SEGREGATION ; DEFORMATION ; BEHAVIOR ; PHASE ; SLIP ; PLASTICITY
资助项目National Natural Science Foundation of China[52071178] ; National Natural Science Foundation of China[51901103] ; National Natural Science Foundation of China[51931003] ; National Natural Science Foundation of China[51601003] ; National Natural Science Foundation of China[51401172] ; National Key Research and Development Program of China[2017YFA0204403] ; Project of Natural Science Foundation of Heilongjiang Province[LH2019E080]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000888914200001
资助机构National Natural Science Foundation of China ; National Key Research and Development Program of China ; Project of Natural Science Foundation of Heilongjiang Province
其他责任者Zhou, Hao
源URL[http://dspace.imech.ac.cn/handle/311007/91056]  
专题力学研究所_非线性力学国家重点实验室
推荐引用方式
GB/T 7714		 Xiao, Lirong,Chen XF,Ning, Huiyan,et al. Unexpected high-temperature brittleness of a Mg-Gd-Y-Ag alloy[J]. JOURNAL OF MAGNESIUM AND ALLOYS,2022,10(9):2510-2515.
APA Xiao, Lirong.,陈雪飞.,Ning, Huiyan.,姜萍.,Liu, Yi.,...&Zhu, Yuntian.(2022).Unexpected high-temperature brittleness of a Mg-Gd-Y-Ag alloy.JOURNAL OF MAGNESIUM AND ALLOYS,10(9),2510-2515.
MLA Xiao, Lirong,et al."Unexpected high-temperature brittleness of a Mg-Gd-Y-Ag alloy".JOURNAL OF MAGNESIUM AND ALLOYS 10.9(2022):2510-2515.

入库方式： OAI收割

来源：力学研究所

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