Microstructural characterization of IN625 - NiCrAlY bond coat system fabricated by additive manufacturing

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Abstract

This research is conducted on the IN625 superalloy as a substrate fabricated by selective laser melting method, which is coated with bond coat. The microstructure and chemical composition are investigated using optical microscopy and Field Emission Scanning Electron Microscopy (FE-SEM) coupled to an Energy Dispersive Spectroscopy (EDS) detector. The bond coat and substrate present a homogeneous microstructure, strong metallurgical bond and good adherence between substrate and bond coat. Moreover, the microstructure is difficult to distinguish between the bond coat and substrate using optical microscopy. Furthermore, the selective laser melting has a low level of Oxygen, indicating a low diffusion and oxidation rate during manufacturing process.

Original languageEnglish
Title of host publicationAdvances in Metallurgy and Engineering Materials
Subtitle of host publicationCharacterizations and Innovation
EditorsJaka Fajar Fatriansyah, Deni Ferdian, Wahyuaji Narottama Putra, Akhmad Herman Yuwono, Donanta Dhaneswara, Nofrijon Sofyan
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735444669
DOIs
Publication statusPublished - 9 May 2023
EventInternational Meeting on Advances in Metallurgy and Materials 2020, i-MAMM 2020 - Virtual, Online
Duration: 16 Nov 202017 Nov 2020

Publication series

NameAIP Conference Proceedings
Volume2538
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Meeting on Advances in Metallurgy and Materials 2020, i-MAMM 2020
CityVirtual, Online
Period16/11/2017/11/20

Keywords

  • Additive manufacturing
  • MCrAlY bond coat
  • Nickel based Superalloy
  • Selective laser melting
  • Thermal barrier coating

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