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Solidification of Mg-Zn-Zr Alloys: Grain Growth Restriction, Dendrite Coherency and Grain Size

文献类型：期刊论文

作者Li, Pei1,2; Hou, Danhui1; Han, En-Hou1; Chen, Rongshi1; Shan, Zhiwei2
刊名ACTA METALLURGICA SINICA-ENGLISH LETTERS
出版日期2020-06-04
页码10
关键词Magnesium alloy Grain size Solute content Growth restriction Dendrite coherency Solidification
ISSN号1006-7191
DOI10.1007/s40195-020-01069-1
通讯作者Chen, Rongshi(rschen@imr.ac.cn) ; Shan, Zhiwei(zwshan@mail.xjtu.edu.cn)
英文摘要The solidification characterization of Mg-xZn-0.5Zr (x = 0, 1, 3, 4, 5 wt%) alloys has been extensively investigated through thermal analysis, microstructure characterization and thermodynamic calculations. The impact of Zn content on the grain growth restriction, dendrite coherency and thus the final grain size has been investigated and discussed. Increasing Zn content, the grain size of Mg-xZn-0.5Zr alloy was firstly refined and then coarsened with the finest grain size of similar to 50 mu m for the Mg-3Zn-0.5Zr (ZK31) alloy. Significant effects of the grain size on the mechanical properties were observed in the investigated alloys. The combination of growth restriction factor theory and dendrite coherency point provides a reasonable explanation of the grain size results. It helps to further understand the mechanisms of grain refinement and grain coarsening related to solute content, providing reference for alloy design and grain size prediction.
资助项目National Key Research and Development Program of China[2017YFB0702001] ; Natrual Science Foundation of China[51621063] ; International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies ; Collaborative Innovation Center of High-End Manufacturing Equipment ; Science and Technology Department of Shaanxi Province[2016KTZDGY-04-03] ; Science and Technology Department of Shaanxi Province[2016KTZDGY-04-04] ; National Natural Science Foundation[51701218] ; National Science and Technology Major Project of China[2017ZX04014001]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000537643100001
出版者CHINESE ACAD SCIENCES, INST METAL RESEARCH
资助机构National Key Research and Development Program of China ; Natrual Science Foundation of China ; International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies ; Collaborative Innovation Center of High-End Manufacturing Equipment ; Science and Technology Department of Shaanxi Province ; National Natural Science Foundation ; National Science and Technology Major Project of China
源URL[http://ir.imr.ac.cn/handle/321006/139147]  
专题金属研究所_中国科学院金属研究所
通讯作者Chen, Rongshi; Shan, Zhiwei
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
推荐引用方式
GB/T 7714		 Li, Pei,Hou, Danhui,Han, En-Hou,et al. Solidification of Mg-Zn-Zr Alloys: Grain Growth Restriction, Dendrite Coherency and Grain Size[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2020:10.
APA Li, Pei,Hou, Danhui,Han, En-Hou,Chen, Rongshi,&Shan, Zhiwei.(2020).Solidification of Mg-Zn-Zr Alloys: Grain Growth Restriction, Dendrite Coherency and Grain Size.ACTA METALLURGICA SINICA-ENGLISH LETTERS,10.
MLA Li, Pei,et al."Solidification of Mg-Zn-Zr Alloys: Grain Growth Restriction, Dendrite Coherency and Grain Size".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2020):10.

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来源：金属研究所

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