Effect of heat treatment on the microstructures of MAR-M247 fabricated through scanning laser epitaxy

Amrita Basak, Suman Das

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Engineered components made of superalloys routinely undergo heat treatment procedures to tailor their microstructures and properties. In this study, the effect of heat treatment on the microstructures of polycrystalline nickel-base superalloy MAR-M247 was investigated. Samples of MAR-M247 were fabricated using scanning laser epitaxy (SLE), a powder bed fusion-based additive manufacturing process exclusively developed to repair and manufacture structures of nickel-base superalloys. Microstructural characterizations of the as-deposited and the heat treated MAR-M247 samples were performed using optical microscopy (OM) and scanning electron microscopy (SEM). The results showed that the microstructure became homogeneous with reductions in the eutectic volume fraction for the heat-treated samples. The heat-treated samples were also found to be free from cracking.

Original languageEnglish (US)
Title of host publicationMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016
PublisherAssociation for Iron and Steel Technology, AISTECH
Pages59-66
Number of pages8
ISBN (Electronic)9781510833142
StatePublished - Jan 1 2016
EventMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016 - Salt Lake City, United States
Duration: Oct 23 2016Oct 27 2016

Publication series

NameMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016
Volume1

Other

OtherMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016
CountryUnited States
CitySalt Lake City
Period10/23/1610/27/16

All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)
  • Mechanics of Materials
  • Energy Engineering and Power Technology

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  • Cite this

    Basak, A., & Das, S. (2016). Effect of heat treatment on the microstructures of MAR-M247 fabricated through scanning laser epitaxy. In Materials Science and Technology Conference and Exhibition 2016, MS and T 2016 (pp. 59-66). (Materials Science and Technology Conference and Exhibition 2016, MS and T 2016; Vol. 1). Association for Iron and Steel Technology, AISTECH.