Investigation of residual stresses by micro indentation in selective laser melting Lazerle metal toz ergitme prosesinde kalinti gerilmelerin mikro girinti tekniǧi ile incelenmesi

YASA E., Poyraz Ö.

Journal of the Faculty of Engineering and Architecture of Gazi University, cilt.36, sa.2, ss.1029-1039, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 36 Sayı: 2
  • Basım Tarihi: 2021
  • Doi Numarası: 10.17341/gazimmfd.792584
  • Dergi Adı: Journal of the Faculty of Engineering and Architecture of Gazi University
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Art Source, Compendex, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.1029-1039
  • Anahtar Kelimeler: Laser powder bed fusion, inconel 625, residual stresses, micro indentation, STRAIN FIELDS
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

© 2021 Gazi Universitesi Muhendislik-Mimarlik. All rights reserved.Selective Laser Melting (SLM) of functional parts production from metals are becoming widespread and are preferred by many industries thanks to their wide material portfolio. However, there are still challenges that need to be overcome for the emerging SLM process which is relatively immature in comparison to conventional manufacturing methods. One of the main challenges for the process is the high meltingsolidification rate resulting in residual stresses. Among the different number of residual stress measurement techniques, micro indentation has the advantage of not requiring new investments. In this article, residual stresses of SLMed Inconel 625, which is a nickel superalloy widely used in aerospace, were investigated by the micro indentation technique. The values obtained were found to be compatible with other nickel superalloy studies available in the literature.