Compressive creep behavior of Ir-base quaternary alloy 76.5Ir-13.5Nb-8.1Ni-1.9Al

C. Huang, X. H. Yu, Y. Yamabe-Mitarai, S. Nakazawa, H. Harada

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Ir-base quaternary alloy 76.5Ir-13.5Nb-8.1Ni-1.9Al (in atomic percent) with an fcc/L12 two-phase structure showed an excellent balance of high-temperature strength and ductility in the previous study. In the present work, the compressive creep behavior of the alloy was characterized within a temperature range of 1500 to 1800 °C and a stress range of 50 to 200 MPa. The microstructure before and after the creep test was investigated. Depending on the steady-state creep rate, the creep stress exponent was calculated.

Original languageEnglish
Pages (from-to)3371-3376
Number of pages6
JournalMaterials Letters
Volume57
Issue number22-23
DOIs
Publication statusPublished - 2003 Jul 1
Externally publishedYes

Keywords

  • Compressive creep
  • Intermetallic alloys and compounds
  • Ir-base quaternary alloy
  • Mechanical properties
  • Microstructure
  • Stress exponent

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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