Precipitation characteristics of gamma prime precipitate in rene 65

C. M. Katsari, H. Che, B. Turner, A. Wessman, S. Yue

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

2 Scopus citations

Abstract

Superalloys have been used for many years in the aerospace industry due to their excellent creep performance in high temperature and high stress environments. The precipitation that contributes to creep resistance also increases the strength; however, this gives rise to thermomechanical processing issues. Therefore, the ultimate goal of this work is to understand the precipitation characteristics in order to design heat treatments that make thermomechanical processing easier without compromising the final microstructure and properties. The main precipitate that was examined was the gamma prime phase (γ') [Ni3 (Al,Ti)], which largely determines the mechanical properties of the alloy. The γ' was found to form in three different sizes; primary, secondary and tertiary. The differences in the volume fraction and morphology of each precipitate type was noted and the relationship between heat treatment and precipitates will be discussed.

Original languageEnglish (US)
Title of host publicationMaterials Science and Technology Conference and Exhibition 2017, MS and T 2017
PublisherAssociation for Iron and Steel Technology, AISTECH
Pages1375-1381
Number of pages7
ISBN (Electronic)9781510850583
DOIs
StatePublished - 2017
Externally publishedYes
EventMaterials Science and Technology Conference and Exhibition 2017, MS and T 2017 - Pittsburgh, United States
Duration: Oct 8 2017Oct 12 2017

Publication series

NameMaterials Science and Technology Conference and Exhibition 2017, MS and T 2017
Volume2

Conference

ConferenceMaterials Science and Technology Conference and Exhibition 2017, MS and T 2017
Country/TerritoryUnited States
CityPittsburgh
Period10/8/1710/12/17

Keywords

  • Gamma prime
  • Heat-treatment
  • Nickel-based superalloy
  • Precipitation

ASJC Scopus subject areas

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

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