Development of a precipitation-strengthened Pt-base superalloy

R. Völkl, M. Wenderoth, J. Preussner, S. Vorberg, B. Fischer, Y. Yamabe-Mitarai, H. Harada, U. Glatzel

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Preliminary work on precipitation-strengthened alloys revealed a Pt-Al-Cr alloy with good mechanical properties and excellent oxidation resistance up to very high temperatures as starting point for further alloy development. A variety of ternary additions to the Pt-Al base are investigated to secure L12 structure of the hardening Pt3Al phase. Ni is in the course added for solid-solution strengthening. Minor additions of B further increase creep resistance and rupture time remarkably, owing to strengthening of the grain boundaries.

Original languageEnglish
Pages (from-to)328-331
Number of pages4
JournalMaterials Science and Engineering A
Volume510-511
Issue numberC
DOIs
Publication statusPublished - 2009 Jun 15
Externally publishedYes

Keywords

  • Creep
  • Intermetallic
  • Platinum
  • Precipitation
  • Superalloy

ASJC Scopus subject areas

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

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