The effect of atmosphere on the structure and properties of a selective laser melted Al-12Si alloy

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:597

Article

Wang, X. J.^1,2  Zhang, L. C.³  Fang, M. H.²  Sercombe, T. B.¹ 

[1] Univ Western Australia, Sch Mech & Chem Engn, Perth, WA 6009, Australia

[2] China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China

[3] Edith Cowan Univ, Sch Engn, Perth, WA 6027, Australia

关键词: Aluminium alloys;    Selective Laser Melting;    Mechanical properties;    Microstructure;    Atmosphere;   

DOI  :  10.1016/j.msea.2014.01.012

来源: Elsevier

【 摘 要 】

Al-12Si components were manufactured by Selective Laser Melting (SLM) using three different atmospheres: argon; nitrogen and helium. The atmosphere type did not affect the part's density or hardness and all components reached near full relative density (> 97%). The mechanical properties of the components produced in Ar and N-2 were superior to those in He, especially the ductility, which has been attributed to the formation of pore clusters in the microstructure. The mechanical properties in SLM-produced components are superior to those produced using conventional method. Crown Copyright (C) 2014 Published by Elsevier B.V. All rights reserved.

【 授权许可】

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