Origin of stray-grain formation and epitaxy loss at substrate during laser surface remelting of single-crystal nickel-base superalloys
作者： Yao-Jian Liang , Hua-Ming Wang
DOI: 10.1016/J.MATDES.2016.04.051
关键词:
摘要: Abstract The stray-grain formation and epitaxy loss at the substrate during laser surface remelting of single-crystal nickel-base superalloys, which immediately lead to break growth, were investigated by means modeling experiments. Results indicate that are attributed increased trend equiaxed grains resulting from composition segregation interdendritic region. Accordingly, a solution treatment for substrates prior processing can effectively avoid SG loss, reveals basic precondition, homogenized substrates, successful processing.
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