Effects of small silver addition to AuCu on the AuCu I ordering process and age-hardening behaviours

T. Shiraishi, M. Ohta, Masaharu Nakagawa, Riichi Ouchida

研究成果: ジャーナルへの寄稿記事

9 引用 (Scopus)

抄録

The effects of small silver additions to an equiatomic AuCu on the AuCu I ordering process and age-hardening behaviours at 300°C were investigated by hardness testing, X-ray powder diffraction, optical microscopy, and transmission electron microscopy. The twinned structure developed at 300°C in all of the experimental alloys containing silver of up to 6.0 at,%. However, the widening rate of the inter-twin spacing and the growth rate of the antiphase domain size markedly slowed down with the addition of silver to AuCu. The softening rate in the overageing stage also markedly slowed down with increasing the silver content. The strong tendency of retaining a high hardness value in the silver-containing alloys was attributed to the high densities of both twin boundary and antiphase boundary in these alloys. The small silver addition to an equiatomic AuCu tends to stabilize the mechanical properties of the aged alloy. This effect is beneficial in designing and producing a high-duty dental casting gold alloy.

元の言語英語
ページ(範囲)306-312
ページ数7
ジャーナルJournal of Alloys and Compounds
257
発行部数1-2
DOI
出版物ステータス出版済み - 7 25 1997

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Age hardening
Silver
Gold Alloys
Hardness testing
Gold alloys
Light transmission
X ray powder diffraction
Optical microscopy
Casting
Hardness
Transmission electron microscopy
Mechanical properties

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

これを引用

Effects of small silver addition to AuCu on the AuCu I ordering process and age-hardening behaviours. / Shiraishi, T.; Ohta, M.; Nakagawa, Masaharu; Ouchida, Riichi.

:: Journal of Alloys and Compounds, 巻 257, 番号 1-2, 25.07.1997, p. 306-312.

研究成果: ジャーナルへの寄稿記事

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