Determination of the Phase Equilibria in the Mg-Ag-Ca Ternary System at 350 °C

被引：0

作者：

Zhao, Lingyu ^{[1
]}

Zhou, Beian ^{[1
]}

Zhang, Zhang ^{[1
]}

Feng, Bo ^{[2
]}

Wang, Qinghang ^{[1
]}

Jin, Zhaoyang ^{[1
]}

Wang, Jian ^{[1
]}

机构：

[1] Yangzhou Univ, Sch Mech Engn, Yangzhou 225127, Jiangsu, Peoples R China

[2] Guangdong Acad Sci, Inst Mat & Proc, Guangzhou 510650, Peoples R China

来源：

JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION | 2021年 / 42卷 / 06期

关键词：

EDS; Mg-Ag-Ca system; phase diagram; SEM; XRD; THERMODYNAMIC ASSESSMENT; CORROSION BEHAVIOR; METALLIC GLASSES; MAGNESIUM; ALLOY; MICROSTRUCTURE; BIOMATERIALS; CALCIUM; SILVER;

D O I：

10.1007/s11669-021-00926-5

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：

The phase equilibria in the Mg-Ag-Ca ternary system, in the composition range 0-35 at% Ca at 350 degrees C were investigated using 21 alloy specimens. Scanning electron microscopy equipped with an energy-dispersive spectroscope and electron probe micro-analysis were employed to analyze the constituted phases and their compositions in the alloy samples. X-ray diffraction was used to analyze the crystal structure of the constituted phases in selected samples. Four new phases named as P1, P2, P3, and P4 were found in this work. The compound P1 has a wide composition range: 52-72% Mg, 13-28% Ag, and 15-17% Ca (at.%); P2 has a narrow solid solubility: 29-33% Mg, 35-40% Ag, and 31-32% Ca (at.%) at 350 degrees C; in the present work, P4 was detected in the composition range: 12-19 at.% Mg, 59-61 at.% Ag, and 21-27 at.% Ca. In addition, the 2 theta of diffraction peaks of four new phases and nine three-phase equilibrium relationships were determined in the present work.

引用

页码：831 / 841

页数：11

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