Partial Isothermal Sections of the Cu-Rich Corner of the Al-Cu-Zn System at 200 and 240 °C

被引:1
|
作者
Ngugi, J. [1 ,2 ]
Rading, G. O. [1 ,2 ]
Odera, B. O. [2 ,3 ]
Ngobe, B. [4 ]
Forbes, R. [5 ]
Cornish, L. A. [2 ,6 ,7 ]
机构
[1] Univ Nairobi, Dept Mech & Mfg Engn, Nairobi, Kenya
[2] Univ Witwatersrand, AMSEN, Johannesburg, South Africa
[3] Tech Univ Kenya, Sch Mech & Proc Engn, Nairobi, Kenya
[4] MINTEK, Adv Mat Div, Randburg, South Africa
[5] Univ Witwatersrand, Sch Chem, Mol Sci Inst, Johannesburg, South Africa
[6] Univ Witwatersrand, DST NRF Ctr Excellence Strong Mat, Johannesburg, South Africa
[7] Univ Witwatersrand, Sch Chem & Met Engn, Johannesburg, South Africa
关键词
alloys; binary system; isothermal section; phase diagram; phase equilibria; ternary phase; KUPFER-ALUMINIUM-ZINK; THERMODYNAMIC DESCRIPTION; PHASE-EQUILIBRIA; COPPER; ALLOYS;
D O I
10.1007/s11669-019-00746-8
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Partial isothermal sections of the Cu-rich corner of ternary Al-Cu-Zn system at 200 and 240 degrees C were plotted up to 55 at.% Cu and 85 at.% Zn based on scanning electron microscopy, energy-dispersive x-ray spectroscopy and x-ray diffractometry analyses of ten ternary alloys. Seven phases were observed at both isothermal temperatures, and no new ternary phases were found. The results were compared with previously published works, and the gamma-phase was confirmed to exist as two phases: gamma Cu9Al4 and gamma Cu5Zn8.
引用
收藏
页码:588 / 599
页数:12
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