期刊
LASERS IN MANUFACTURING (LIM 2013)
卷 41, 期 -, 页码 816-820出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.phpro.2013.03.154
关键词
Selective Laser Melting; Hastelloy-X; microstructure; optimised process parameters
资金
- Australian Research Council [LE0882821]
- Australian Research Council [LE0882821] Funding Source: Australian Research Council
Selective Laser Melting (SLM) is steadily gaining acceptance across the manufacturing industry. Techniques for manufacturing components with complex geometries layer by layer have proven to be very effective in accelerating product development and hence reducing time to market. To build components by SLM from a nickel based super-alloy requires an understanding of process parameters and how they influence the microstructure, the degree of porosity and the properties. In this work, it was found that the as-fabricated density of parts manufactured from Hastelloy-X by SLM could be increased from 77 to 99 % by decreasing the laser scan speed, and that the degree of cracking can be reduced by decreasing the amount of minor alloying additions such as Mn and Si. (C) 2013 The Authors. Published by Elsevier B.V. Selection and/or peer-review under responsibility of the German Scientific Laser Society (WLT e.V.)
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