Phase Relation and Kinetics of the Transformations in Au-Cu-Zn Ternary Alloys
Authors:
- Yuichiro MurakamiYMYuichiro Murakami
- Hajime AsanoHAHajime Asano
- Norihiko NakanishiNNNorihiko Nakanishi
- Sukeji KachiSKSukeji Kachi
- 1 November 1967
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 6 (11)
Abstract
The phase relation in the β phase Au x Cu55-x Zn45 ternary alloys was studied. There appear two types of ordered phases, i.e., the Heusler-type and the CsCl-type superlattices, and a martensite structure at low temperatures. The critical temperature (T c ) of CsCl-type superlattice becomes higher than that (455°C) of the Cu-Zn binary alloy with the increase in Au content. T c of the Heusler-type has a maximum (390°C) near the stoichiometric composition of AuCuZn2. The martensitic transformation temperature (T 0) increases up to a maximum (45°C) at the 26 at.% Au and then decreases with the further increase in Au content. The nature of the stability of the β phase was discussed from the view point of ionic radii of the constituent elements, electron atom ratio and quenched-in vacancies.Keywords
This publication has 7 references indexed in Scilit:
- Martensitic Transformation in Au-Cu-Zn AlloysJapanese Journal of Applied Physics, 1965
- A Calculation of the Elastic Constants and the Effect of its Anisotropy on the Martensitic Transformation in 3/2 Electron CompoundsTransactions of the Japan Institute of Metals, 1965
- A martensitic transformation in a gold-copper-zinc alloyActa Metallurgica, 1964
- MARTENSITIC TRANSFORMATION IN ORDERED β′-AuZnCanadian Journal of Physics, 1964
- An Electrical Resistance Study of Phase Transformations in Quenched and Annealed CsCl Au-Cd AlloysTransactions of the Japan Institute of Metals, 1963
- Electrical Resistivity and X-Ray Diffraction Study of the Beta AgCd-AuCd SystemJournal of Applied Physics, 1962
- Structural and elastic properties of metalsPhysica, 1949