Structure and Mechanical Properties of the AlSi10Mg Alloy Samples Manufactured by Selective Laser Melting

2017 4th International Conference on Advanced Materials, Mechanics and Structural Engineering

材料科学;机械制造

Li, Xiaodan^1 ; Ni, Jiaqiang^1 ; Zhu, Qingfeng^2 ; Su, Hang^1 ; Cui, Jianzhong^2 ; Zhang, Yifei^3 ; Li, Jianzhong^3

Shenyang Aircraft Industry (Group) Co. Ltd., Shenyang

110819, China^1

Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education Northeastern University, Shenyang

110819, China^2

School of Metallurgy, Northeastern University, Shenyang

110819, China^3

关键词: Build orientation;    Fish scale;    Selective laser melting;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/269/1/012081/pdf
DOI  :  10.1088/1757-899X/269/1/012081

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The AlSi10Mg alloy samples with the size of 14×14×91mm were produced by the selective laser melting (SLM) method in different building direction. The structures and the properties at -70°C of the sample in different direction were investigated. The results show that the structure in different building direction shows different morphology. The fish scale structures distribute on the side along the building direction, and the oval structures distribute on the side vertical to the building direction. Some pores in with the maximum size of 100 μm exist of the structure. And there is no major influence for the build orientation on the tensile properties. The tensile strength and the elongation of the sample in the building direction are 340 Mpa and 11.2 % respectively. And the tensile strength and the elongation of the sample vertical to building direction are 350 Mpa and 13.4 % respectively.