Age-hardening reactions and microstructures of a dental gold alloy with palladium and platinum

K. Hisatsune, M. Nakagawa, K. Udoh, B. I. Sosrosoedirdjo, M. Hasaka

研究成果: Contribution to journalArticle査読

22 被引用数 (Scopus)

抄録

The age-hardening reactions and microstructures of a dental casting gold alloy with some palladium and platinum were investigated by means of hardness tests, X-ray diffractometry, electrical resistivity measurements, and scanning and transmission electron microscopy. Ageing reactions during isothermal annealing were completed by two stages. The first stage corresponded to the formation of a metastable CuAu I phase within grains, and the second stage to a cellular reaction at grain boundaries. The former contributed to the hardening and the latter to the softening. An activation energy of 128 kJ mol-1 for hardening was obtained. Two types of cell growth were observed and could be distinguished in terms of the homologous temperature.

本文言語英語
ページ(範囲)49-54
ページ数6
ジャーナルJournal of Materials Science: Materials in Medicine
1
1
DOI
出版ステータス出版済み - 6 1 1990
外部発表はい

All Science Journal Classification (ASJC) codes

  • 生物理学
  • バイオエンジニアリング
  • 生体材料
  • 生体医工学

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