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

• DOI: 10.1016/j.scriptamat.2018.03.041
• Publication Date: 2018-04-10T03:01:16Z
• Authors: Edouard Chauvet; Catherine Tassin; Jean-Jacques Blandin; Rémy Dendievel; Guilhem Martin
• Keywords: Base (topology); Crystal (programming language)

Abstract 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.