Aging behaviour in a dental low carat gold alloy and its relation to CuAuII

K. Hisatsune, K. Udoh, M. Nakagawa, M. Hasaka

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Aging behaviour in a dental low carat gold alloy was studied by hardness tests, resistivity measurements, X-ray diffraction, scanning electron microscopy and transmission electron microscopy. Aging at 500 °C produced two stages which were accompanied by hardening and softening. They corresponded to a reaction at the grain interior and at the grain boundary respectively. Aging at 400 °C was completed in three stages. In the intermediate aging period, an additional hardening due to the formation of a CuAuII-type structure was observed. The final microstructure depended on the aging temperature associated with the homologous temperature.

Original languageEnglish
Pages (from-to)247-258
Number of pages12
JournalJournal of the less-common metals
Volume160
Issue number2
DOIs
Publication statusPublished - May 1990
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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