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Effects of hot isostatic pressing and heat treatments on structural and corrosion properties of direct metal laser sintered parts

  • Mustafa Safa Yılmaz
  • , Gökhan Özer
  • , Zafer Çağatay Öter
  • , Onur Ertuğrul

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: This paper aims to investigate the effects of various heat treatments on microstructure, hardness, porosity and corrosion properties of the parts. Design/methodology/approach: Hot isostatic pressing (HIP) process, various heat treatments and their combinations were applied to the AlSi10Mg parts produced by direct laser metal sintering (DMLS). Findings: It has been found that the HIP process, which is a post-processing process, reduces the amount of porosity in DMLS-AlSi10Mg material, thus improves corrosion resistance significantly. Originality/value: In this study, the HIP process and subsequent T6 heat treatments were applied to AlSi10Mg parts produced by the DMLS technique. The study aims to increase the corrosion resistance of AlSi10Mg parts by reducing porosity with the HIP process and by altering the microstructure with the T6 process.

Original languageEnglish
Pages (from-to)1059-1067
Number of pages9
JournalRapid Prototyping Journal
Volume27
Issue number5
DOIs
Publication statusPublished - 2021
Externally publishedYes

Keywords

  • Additive manufacturing (AM)
  • AlSi10Mg
  • Corrosion resistance
  • Direct metal laser sintering (DMLS)
  • Heat treatment
  • Hot isostatic pressing (HIP)

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