Effect of heat treatment on the microstructures of CMSX-4® processed through scanning laser epitaxy (SLE)

Amrita Basak, Suman Das

Research output: Contribution to conferencePaper

2 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 and microhardness of single-crystal nickel-base superalloy CMSX-4® is investigated. Samples of CMSX-4® are fabricated using scanning laser epitaxy (SLE), a laser powder bed fusion (LPBF)-based additive manufacturing process. Microstructural characterizations of the as-deposited and the heat treated CMSX-4® samples are performed using optical microscopy, scanning electron microscopy, x-ray diffraction, and Vickers microhardness measurements. The results show that the microstructure is homogenized with reductions in the eutectic volume fraction after heat treatment. The microhardness values are also improved upon heat treatment. This work is sponsored by the Office of Naval Research through grant N00014-14-1-0658.

Original languageEnglish (US)
Pages193-203
Number of pages11
StatePublished - Jan 1 2020
Event28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017 - Austin, United States
Duration: Aug 7 2017Aug 9 2017

Conference

Conference28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017
CountryUnited States
CityAustin
Period8/7/178/9/17

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

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    Basak, A., & Das, S. (2020). Effect of heat treatment on the microstructures of CMSX-4® processed through scanning laser epitaxy (SLE). 193-203. Paper presented at 28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017, Austin, United States.