期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 630, 期 -, 页码 84-93出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.01.028
关键词
DTA analysis; Ag-Cu-Ge system; EPMA analysis; Quenching from the liquid-solid state; Phase diagram; Liquidus projection
资金
- Ministry of Education and Science of the Russian Federation [K2-2014-014]
Microstructural, XRD and DTA analysis of samples covering a range of compositions was carried out on cast and annealed samples in order to investigate phase equilibria in the Ag-Cu-Ge system. The results of the research work suggest the presence of a eutectic reaction L <-> (Ag) + epsilon + hcp instead of a quasi-peritectic reaction described by Dutkiewicz and Massalski. A larger extension of the (Ag) primary solidification region toward the Cu-Ge side of the phase diagram with Ge contents lower than 20 at.% and the extension of the e phase primary solidification field toward (Ag) were observed in the present work. An EPMA analysis showed that there is limited solubility of Ag in the intermetallic phases of the Cu-Ge system. (C) 2015 Elsevier B.V. All rights reserved.
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