首页|Co-Al-Re三元系在1100℃和1300℃等温截面的相平衡

Co-Al-Re三元系在1100℃和1300℃等温截面的相平衡

Phase equilibria in Co-Al-Re ternary system at 1100 and 1300 ℃

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利用电子探针成分分析(EPMA)和X射线衍射分析(XRD)建立Co-Al-Re三元系的1100℃和1300℃等温截面相图.实验结果表明:在1100℃等温截面相图中存在7个三相区,而1300℃等温截面相图中存在5个三相区;随着温度从1100℃上升到1300℃,αCo、εRe和CoAl的固溶度略微增加;Co在AlRe2、Al11Re4和Al4Re相中的固溶度极小,<1.5%(摩尔分数);等温截面相图中均未发现三元化合物.
Isothermal sections of the Co-Al-Re ternary system at 1100 and 1300 ℃ were determined experimentally by electron probe microanalysis and X-ray diffraction. The results show that there are seven three-phase regions in the 1100 ℃ isothermal section and five three-phase regions in the 1300 ℃ isothermal section. The solid solubilities ofαCo,εRe and CoAl increase a little with temperature increasing from 1100 to 1300 ℃. The solubility of Co in compounds AlRe2, Al11Re4 and Al4Re is negligible,<1.5 at.%. And no ternary compounds are found.

Co-Al-Rephase equilibriaisothermal section

李玲玲、张锦彬、陈悦超、杨水源、王翠萍、刘兴军

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厦门大学 材料学院 福建省材料基因工程重点实验室,厦门 361005

哈尔滨工业大学 先进焊接与连接国家重点实验室,哈尔滨 150001

哈尔滨工业大学(深圳) 材料科学与工程学院,深圳 518055

Co-Al-Re 相平衡 等温截面

authors are grateful for the financial supports from the National Natural Science Foundation of ChinaNational Key Research&Development Program of China

518310072017YFB0702901

2021

中国有色金属学报(英文版)
中国有色金属学会

中国有色金属学报(英文版)

CSTPCDCSCDSCI
影响因子:1.183
ISSN:1003-6326
年,卷(期):2021.31(6)
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