ADDITIVE MANUFACTURED ALUMINUM ALLOY: MICROSTRUCTURE CHARACTERIZATION AS A FUNCTION OF ENERGY DENSITY

European Journal of Materials Science and Engineering

Luke SUTTEY¹  Vadiraja K. SUDHAKAR¹ 

[1] Montana Technological University, Butte, MT 59701, USA;

关键词: microstructure;    laser powder bed fusion (LPBF);    AlSi10Mg alloy;    build angle;   

DOI  :  

来源: DOAJ

【 摘 要 】

In this investigation, detailed microstructural studies were performed to determine their influence on process parameters used in additive manufacturing of AlSi10Mg alloy. As-built specimen orientations and energy densities were the variable process parameters used to evaluate their influence on the resulting microstructures. Microstructures were characterized using a light microscope attached with a software for detailed analysis. Results revealed optimal microstructures for specimens produced with 45.4 J/mm3 global energy density showing cellular-dendritic microstructures. Specimens with global energy density of 37.1 J/mm3 produced an undesirable microstructure with relatively large melt pool boundaries.

【 授权许可】

Unknown