Selective laser melting of Inconel 718 under high laser power

E. V. Borisov*, V. A. Popovich, A. A. Popovich, V. Sh Sufiiarov, Jia Ning Zhu, K. A. Starikov

*Corresponding author for this work

Research output: Contribution to journalConference articleScientificpeer-review

7 Citations (Scopus)

Abstract

Selective laser melting (SLM) process has been lately extensively applied in manufacturing of Nickel-based super alloys, which compared to conventional manufacturing routes offers increased design flexibility and simplification of the manufacturing process. However, in order to make SLM process even more beneficial, its process time has to be reduced. One of the ways to tackle this problem is by tailoring process parameters through application of high laser power and base plate pre-heating. In this paper, a comparative study of optimum SLM fabrication conditions of Inconel 718 superalloy under high laser power and with and without plate pre-heating was conducted. Furthermore, the effect of layer thickness on melt pool characteristics, porosity and hardness were investigated to determine how laser power and pre-heating affect microstructure development.

Original languageEnglish
Pages (from-to)784-788
JournalMaterials Today: Proceedings
Volume30
Issue number3
DOIs
Publication statusPublished - 2020
Event2019 International Scientific Conference on Materials Science: Composites, Alloys and Materials Chemistry, MS-CAMC 2019 - Saint Petersburg, Russian Federation
Duration: 20 Nov 201921 Nov 2019

Keywords

  • Additive manufacturing
  • Grain structure
  • Nickel alloy
  • Selective laser melting
  • Texture

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