Producing Ni-base superalloys single crystal by selective electron beam melting

SCRIPTA MATERIALIA

卷:152

Article

Chauvet, Edouard¹  Tassin, Catherine¹  Blandin, Jean-Jacques¹  Dendievel, Remy¹  Martin, Guilhem¹ 

[1] Univ Grenoble Alpes, CNRS, Grenoble INP, SIMaP, F-38000 Grenoble, France

关键词: Electron beam melting;    Ni-base superalloys;    Single crystal;    Grain selection;    Crack-free;   

DOI  :  10.1016/j.scriptamat.2018.03.041

来源: Elsevier

【 摘 要 】

The possibility to produce Ni-base superalloy single crystals by selective electron beam melting (S-EBM) is demonstrated. The production of single crystals specimens was achieved by a tight control of the processing conditions without requiring a grain selector or a crystal seed. The melting parameters are controlled so as to promote columnar grains and intensify the competitive grain growth. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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