Identification of Al20Ti2Gd precipitates in an aged RST Al4Ti4Gd alloy

A. G. Jackson, Y. R. Mahajan, S. D. Kirchoff

Research output: Contribution to journalArticlepeer-review

Abstract

The effect of adding rare earth elements to aluminum-transition metal alloys is being investigated. These alloys are intended to extend the service temperatures of aluminum alloys by providing microstructures with fine, uniform dispersions of stable intermetallic compounds. Recent efforts on the AI-Ti-Gd system [1,2] have shown that significant gains in hardness up to exposure temperatures of 600% are obtainable as compared with current "elevated temperature" alloys such as AI-Fe-Ce. The identification of the ternary phase present in the AI-4 w/o Ti-4 w/o Gd alloy is the subject of this paper.

Original languageEnglish
Pages (from-to)1247-1250
Number of pages4
JournalScripta Metallurgica
Volume20
Issue number9
DOIs
StatePublished - Sep 1 1986

ASJC Scopus Subject Areas

  • General Engineering

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