Microstructures and compressive properties of Ni alloyed Rh-15 at.% Nb two-phase refractory superalloys

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

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The effects of replacing Rh with Ni in the Rh-15Nb two-phase refractory superalloy were determined by examining the microstructures and compressive properties of Rh85-xNb15Nix alloys. The results indicated that the optimum Ni content to use to replace Rh in the Rh-15 at.% Nb alloy was about 10 at.%. When the Ni content was below the optimum content, Ni addition was beneficial to the compression strength of the two-phase Rh-15 at.% Nb alloys at both room and high temperatures. Meanwhile, Ni additions predominantly change intergranular fracture in the Rh-15 at.% Nb alloy to transgranular in Ni alloyed Rh-15 at.% Nb.

Original languageEnglish
Pages (from-to)45-51
Number of pages7
JournalMaterials Letters
Volume41
Issue number2
DOIs
Publication statusPublished - 1999 Oct
Externally publishedYes

ASJC Scopus subject areas

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

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