Process parameter optimization framework for the selective laser melting of hastelloy x alloy considering defects and solidification crack occurrence

Houichi Kitano, Masahiro Kusano, Masakazu Tsujii, Atsushi Yumoto, Makoto Watanabe

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Recent years have witnessed increasing demand for selective laser melting (SLM) in practical applications; however, determining the appropriate process parameter range remains challeng-ing. In this study, a framework was developed to determine the appropriate process parameter range considering the occurrence of defects and cracks by conducting a single-track test and thermal elastoplastic analysis. Keyholing, balling, and the residual unmelted regions were considered de-fects. The occurrence of solidification cracking, which is predominant in the SLM of solution-strengthened Ni-based alloys, was considered. Using the proposed framework, we could fabricate a part with largely no defects or cracks, except for the edges, under the determined optimal process parameters.

本文言語English
論文番号578
ジャーナルCrystals
11
6
DOI
出版ステータスPublished - 2021 6月

ASJC Scopus subject areas

  • 化学工学(全般)
  • 材料科学(全般)
  • 凝縮系物理学
  • 無機化学

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