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

doi:10.1016/j.jma.2021.06.018

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Unexpected high-temperature brittleness of a Mg-Gd-Y-Ag alloy
	Xiao, Lirong 6; Chen, Xuefei 5,6; Ning, Huiyan 4; Jiang, Ping 5; Liu, Yi 6; Chen, Bin 3; Yin, Dongdi 2; Zhou, Hao 6; Zhu, Yuntian 1,6
刊名	JOURNAL OF MAGNESIUM AND ALLOYS
	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
DOI	10.1016/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
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关键词	GRAIN-BOUNDARY ; MICROSTRUCTURAL EVOLUTION ; HIGH-STRENGTH ; MAGNESIUM ; SEGREGATION ; DEFORMATION ; BEHAVIOR ; PHASE ; SLIP ; PLASTICITY
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
内容类型	期刊论文
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
通讯作者	Yin, Dongdi; Zhou, Hao
作者单位	1.City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong 999077, Peoples R China 2.Southwest Jiaotong Univ, Sch Mat Sci & Engn, Key Lab Adv Technol Mat, Minist Educ, Chengdu 610031, Sichuan, Peoples R China 3.ThermoFisher Sci, Shanghai 201210, Peoples R China 4.Heilongjiang Inst Technol, Sch Mech & Elect Engn, Harbin 150050, Peoples R China 5.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 6.Nanjing Univ Sci & Technol, Nano & Heterogeneous Mat Ctr, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Lirong,Chen, Xuefei,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.,Chen, Xuefei.,Ning, Huiyan.,Jiang, Ping.,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.