文献类型：期刊文献

英文题名：Effect of aluminium on the microstructure and mechanical properties of as-cast magnesium-manganese alloys

作者：Yu, Zhengwen Hu, Mengdie Tang, Aitao Wu, Mingsong He, Jiejun Gao, Zhengyuan Wang, Fangyuan Li, Caiyu Chen, Bin Liu, Jianguo

第一作者：Yu, Zhengwen

通信作者：Liu, JG[1];Tang, AT[2]

机构：[1]Zunyi Med Univ, Special Key Lab Oral Dis Res, Higher Educ Inst Guizhou Prov, Zunyi 563003, Guizhou, Peoples R China;[2]Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China;[3]Guizhou Inst Technol, Coll Mat & Met, Guiyang, Guizhou, Peoples R China;[4]Chongqing Jiaotong Univ, Sch Mechatron & Automot Engn, Chongqing, Peoples R China;[5]Chongqing Acad Metrol & Qual Inspect, Chongqing, Peoples R China

第一机构：Zunyi Med Univ, Special Key Lab Oral Dis Res, Higher Educ Inst Guizhou Prov, Zunyi 563003, Guizhou, Peoples R China

通信机构：corresponding author), Zunyi Med Univ, Special Key Lab Oral Dis Res, Higher Educ Inst Guizhou Prov, Zunyi 563003, Guizhou, Peoples R China;corresponding author), Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China.

年份：2017

卷号：33

期号：17

起止页码：2086-2096

外文期刊名：MATERIALS SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20172803931340);Scopus(收录号：2-s2.0-85021961737);WOS:【SCI-EXPANDED(收录号:WOS:000424553000011)】；

基金：The present work is supported by the Youth Talent Project of Department of Education of Guizhou Province (KY [2016] 207), the National Natural Science Foundation of China (Project 51501045 and 51474043), Natural Science Foundation of Guizhou Province (J [2015] 2067), Research Foundation for Advanced Talents in Guizhou Institute of Technology (XJGC20141102), Foundation of Talent Team (Guizhou (2015) 4008), the Natural Science Foundation of General Administration of Quality Supervision, Inspection and Quarantine of China (2014QK263) and Natural Science Foundation of Chongqing Bureau of Quality and Technology Supervision (CQZJKY2013001 and CQZJKY2014017).

语种：英文

外文关键词：Magnesium-manganese alloys; aluminium; microstructure; mechanical properties; precipitation hardening behaviour

摘要：In this paper, the effect of aluminium on microstructure and mechanical properties of as-cast magnesium-manganese alloy has been investigated by means of X-ray diffraction, optical microscopy and scanning electron microscopy. The results reveal that various Al-Mn intermetallic compounds form with an increase of Al content. As a result, microstructure of AM11 alloy has been effectively refined due to the formation of Al8Mn5 phase along the grain boundary, while Al addition is explained as the main reason on refining the microstructure of AM91 alloy due to its higher grain growth restriction factor value of similar to 4.32. The tensile yield strength (TYS) has been improved steadily from 27.4 to 122.9 MPa with increasing Al content, because of the combined effects of grain boundary strengthening, solid solution strengthening and precipitation hardening behaviours.