Deformation behaviors of Ir-Nb two-phase alloys at ultra-high temperatures

Y. F. Gu, Y. Yamabe-Mitarai, H. Harada

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

Abstract

To provide information relevant to Ir-base two-phase alloys for future ultra-high-temperature applications, the compression properties of various Ir-Nb alloys with Nb contents from 17% to 23% were investigated at temperatures from 1200 to 1800 °C. The results show that Ir-17%Nb alloy had slight higher strength, and Ir-20%Nb alloy had higher creep resistance and longer creep life in tested alloys. The creep mechanism is discussed in light of the microstructure, the stress exponent and the activation energy.

Original languageEnglish
Title of host publicationAdvanced Materials and Processes for Gas Turbines
EditorsG.E. Fuchs, A.W. James, T. Gabb, M. Mclean, H. Harada, G.E. Fuchs, A.W. James, T. Gabb, M. McLean, H. Harada
Pages285-291
Number of pages7
Publication statusPublished - 2002 Dec 1
Externally publishedYes
EventAdvanced Materials and Processes for Gas Turbines - Copper Mountain, CO, United States
Duration: 2002 Sep 222002 Sep 26

Publication series

NameAdvanced Materials and Processes for Gas Turbines

Other

OtherAdvanced Materials and Processes for Gas Turbines
CountryUnited States
CityCopper Mountain, CO
Period02/9/2202/9/26

Keywords

  • Creep
  • Ir-Nb
  • Refractory superalloy
  • Ultra-high temperature

ASJC Scopus subject areas

  • Engineering(all)
  • Energy Engineering and Power Technology
  • Materials Science(all)

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