Order hardening of Pt8X alloys

S. Nxumalo, M. P. Nzula, C. I. Lang*

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Platinum containing around 11.1 at.% chromium or vanadium undergoes an ordering transformation upon heat treatment, resulting in the formation of ordered domains with the Pt8Ti superlattice structure. The formation of these ordered domains, which are dispersed in a disordered matrix, results in an increase in hardness. Hardness is observed to be sensitive to domain size, with a maximum hardness at around 5 nm, if the ordered volume fraction is high.

Original languageEnglish
Pages (from-to)336-340
Number of pages5
JournalMaterials Science and Engineering A
Volume445-446
DOIs
Publication statusPublished - 15 Feb 2007
Externally publishedYes

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