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| 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) |
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Cite this article:
ZHENG Chaogui; WU Youyu; QIAN Jiuxin; YE Yupu (Department of Chemistry; Peking University). LIQUIDUS AND INTERMETALLIC COMPOUND IN Al-RICH REGION OF Al-Mg-Ce SYSTEM. Acta Metall Sin, 1986, 22(2): 107-155.
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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.
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Received: 18 February 1986
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1 #12
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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