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Effects of heat treatment on microstructure and mechanical properties of SLMed Sc-modified AlSi10Mg alloy

文献类型：期刊论文

作者Chen, Yuming1; Wang, Linzhi2,3; Feng, Zhongxue1; Zhang, Wanneng1
刊名PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
出版日期2021-10-01
卷号31期号:5页码:714-721
关键词Selective laser melting Sc-modified aluminum alloy Mechanical properties Post-processing heat treatment
ISSN号1002-0071
DOI10.1016/j.pnsc.2021.08.003
通讯作者Wang, Linzhi(wlz@cigit.ac.cn) ; Feng, Zhongxue(fzxue2003@163.com)
英文摘要The influence of heat treatments on the microstructures and mechanical properties of the selective laser melting manufactured AlSi10Mg alloy modified with Sc was systematically investigated. The results showed that the addition of Sc element introduced primary Al3Sc, which increased the heterogeneous nucleation during the solidification of AlSi10Mg alloy, and then the ultrafine network eutectic structure was obtained, and hence the tensile strength was improved significantly (nearly 23 %). During the heat treatment process, the network eutectic structure transformed from continuous to discontinuous, and the grain refinement was weakened with an increasing heating temperature, both of which affected the mechanical properties of the Sc modified AlSi10Mg alloy. The tensile strength decreased from 438 +/- 10 MPa for the Sc-modified alloy to 208 +/- 6 MPa, while the fracture strain significantly increased from 6 +/- 0.2 % to 30.2 +/- 1.2 % when the Sc-modified alloy was heat-treated at 325 degrees C for 12 h. It has been found that the desirable microstructure and mechanical properties of SLM Scmodified AlSi10Mg alloy can be realized by controlling the heat treatment process parameters.
资助项目General Program of Chongqing Natural Science Foundation[cstc2020jcyj-msxmX0787] ; Youth Innovation Promotion Association, CAS[2018415]
WOS研究方向Materials Science ; Science & Technology - Other Topics
语种英语
WOS记录号WOS:000708680300010
出版者ELSEVIER SCIENCE INC
源URL[http://119.78.100.138/handle/2HOD01W0/14356]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Wang, Linzhi; Feng, Zhongxue
作者单位1.Kunming Univ Sci & Technol, Mat Sci & Engn Coll, Kunming 650093, Yunnan, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Addit Mfg Technol & Syst, Chongqing 400714, Peoples R China
3.Univ Chinese Acad Sci, Chongqing Sch, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Yuming,Wang, Linzhi,Feng, Zhongxue,et al. Effects of heat treatment on microstructure and mechanical properties of SLMed Sc-modified AlSi10Mg alloy[J]. PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,2021,31(5):714-721.
APA Chen, Yuming,Wang, Linzhi,Feng, Zhongxue,&Zhang, Wanneng.(2021).Effects of heat treatment on microstructure and mechanical properties of SLMed Sc-modified AlSi10Mg alloy.PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,31(5),714-721.
MLA Chen, Yuming,et al."Effects of heat treatment on microstructure and mechanical properties of SLMed Sc-modified AlSi10Mg alloy".PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL 31.5(2021):714-721.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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