Influences of the γ′ phase on the mechanical properties of a nickel-based single crystal superalloy

Xiao Yan Wang, Meng Li, Zhi Xun Wen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

After solid solution treatment at 1335℃ for 4 hours and cooling to room temperature at different rate, the nickel-based single crystal superalloy were made into three kinds of nickel-based single crystal superalloy materials containing different size γ′ phases, respectively. The tensile test of I-shaped specimens was carried out at 980℃, and their effect of γ′ phase microstructure on the tensile properties was studied. The results show that the yielding strength of the material air-cooled to room temperature was lower than that with cooling rate at 0.15℃/s, but both of them were lower than the yielding strength of original material. Little difference was found on the elastic modulus of I-shaped specimens made of three kinds of materials. When the cubic degree of the γ′ phase is higher and the size is larger, the tensile properties of the material is better, which can be attributed to the larger size and narrower channel of the matrix phase that lead to higher dislocation resistance.

Original languageEnglish
Title of host publicationMaterial Science and Engineering Technology IX - Selected peer-reviewed full text papers from the 9th ICMSET 2020, 9th ICNNN 2020, and 5th ICMTA 2020
EditorsRamesh K. Agarwal
PublisherTrans Tech Publications Ltd
Pages45-52
Number of pages8
ISBN (Print)9783035737844
DOIs
StatePublished - 2021
Event9th International Conference on Material Science and Engineering Technology, ICMSET 2020, 9th International Conference on Nanostructures, Nanomaterials and Nanoengineering, ICNNN 2020, and 5th International Conference on Materials Technology and Applications, ICMTA 2020 - Kyoto, Japan
Duration: 9 Oct 202012 Oct 2020

Publication series

NameMaterials Science Forum
Volume1023 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference9th International Conference on Material Science and Engineering Technology, ICMSET 2020, 9th International Conference on Nanostructures, Nanomaterials and Nanoengineering, ICNNN 2020, and 5th International Conference on Materials Technology and Applications, ICMTA 2020
Country/TerritoryJapan
CityKyoto,
Period9/10/2012/10/20

Keywords

  • Cooling rate
  • Nickel-based single crystal
  • Precipitation and dissolution of γ´ phase
  • Tensile properties

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