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金属学报  1986, Vol. 22 Issue (2): 107-155    
  论文 本期目录 | 过刊浏览 |
Al-Mg-Ce体系富Al区液相限及其金属间化合物的研究
郑朝贵;吴有余;钱久信;叶于浦
北京大学化学系;北京大学化学系;北京大学化学系;北京大学化学系
LIQUIDUS AND INTERMETALLIC COMPOUND IN Al-RICH REGION OF Al-Mg-Ce SYSTEM
ZHENG Chaogui; WU Youyu; QIAN Jiuxin; YE Yupu (Department of Chemistry; Peking University)
引用本文:

郑朝贵;吴有余;钱久信;叶于浦. Al-Mg-Ce体系富Al区液相限及其金属间化合物的研究[J]. 金属学报, 1986, 22(2): 107-155.
, , , . LIQUIDUS AND INTERMETALLIC COMPOUND IN Al-RICH REGION OF Al-Mg-Ce SYSTEM[J]. Acta Metall Sin, 1986, 22(2): 107-155.

全文: PDF(1238 KB)  
摘要: 本文借助于热分析、金相、X射线和电子探针分析研究了Al-Mg-Ce体系富Al区三元金属间化合物与液相限。发现固相中生成的金属间化合物X可在颇大范围内形成固溶体;Al-Mg_5Al_8-CeAl_4赝三元体系仍属低共熔型体系。有对应于α-Al,Mg_5Al_8和CeAl_4的三个液相面,三条二次结晶线,一个三元低共熔点,组成约为12.6wt-%Ce,26.0wt-%Mg;温度446℃。
Abstract:The liquidus of the Al-rich corner in Al-Mg-Ce phase diagram and the intermetallic compound, if any, formed in this region have been studied by themal, EMPA, chemical analysis, metallography and X-ray examination. An intermetallic compound in the solid phase was observed to form solid solution with rather extensive range. The pseudo-ternary system Al-Mg_5Al_8-CeAl_4 is of the ternary eutectie type. Three surfaces corresponding to primary crystallization of α-Al, Mg_5Al_8 and CeAl_4 respectively, three univariant curves associated with secondary crystallization and a ternary eutectic with composition about 12.6 wt-%C e and 26.0wt-%Mg at 446℃ were detected.
收稿日期: 1986-02-18     
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2 Hansen, M., Constitution of Binary Alloys, McGraw-Hill, New York, 1958, p. 105; 78.
3 Mondolfo, L.F., Aluminium Alloys: Structure and Properties, Butterworth, London, 1976, p. 242; 311.
4 郑朝贵;邢娅;钱久信;叶于浦,金属学报,19 (1983) ,A515.
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