金属学报  1987, Vol. 23 Issue (6): 498-502

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Sr和Sb对Al-Si合金凝固过程的影响

王玉琮;黄良余;翟春泉;丁文江

上海交通大学;上海交通大学;上海交通大学;上海交通大学

INFLUENCE OF Sr AND Sb ON SOLIDIFICATION OF Al-Si ALLOYS

by WANG Yucong; HUANG Liangyu; ZHAI Chunquan; DING Wenjiang (Shanghai Jiaotong University) (Manuscript received 4 November; 1985; revised manuscript; 3 May; 1986)

王玉琮;黄良余;翟春泉;丁文江. Sr和Sb对Al-Si合金凝固过程的影响[J]. 金属学报, 1987, 23(6): 498-502.
, , , . INFLUENCE OF Sr AND Sb ON SOLIDIFICATION OF Al-Si ALLOYS[J]. Acta Metall Sin, 1987, 23(6): 498-502.

摘要 参考文献 相关文章 Metrics 全文: PDF(430 KB)   摘要: 本文用差热分析法研究了Al-Si共晶合金、亚共晶合金的动态凝固过程。结果表明,Sr和Sb均提高Al-Si合金的共晶析出温度和降低Al-Si共晶的结晶体速度。同时,通过Al-Si共晶合金液与Si晶面之间润湿角的测量和界面张力的计算发现,Sr与Sb原子均无Si晶面上的热力学吸附倾向,但会在Si晶面上富集,故Al-Si合金的变质阈值与合金的冷速有关。 Abstract：The influence of Sr and Sb on the solidification process of Al-Si alloys. was investigated by differential thermal analysis(DTA). The contact angles between the melt and silicon substrates were measured, and the interfacial energies were calculated. It was obtained that Sr and Sb in the melt raised the Al-Si eutectic nucleation temperature and retarded the eutectic crystallization. Sr and Sb in the melt had no thermodynamic tendeney to absorb on silieon crystals, which was contrary to the traditional point of view. But Sr and Sb might accumulate on silicon crystals and affect the growth of Al-Si eutectics because the partition coefficients were less than 1. 收稿日期: 1987-06-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 王玉琮 黄良余 翟春泉 丁文江 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1987/V23/I6/498 1 Day M G, Hellawell A. Proc Roy Soc, 1968; A305: 473 2 Jenkinson D C, Hogan L M. J Cryst Growth, 1975; 28: 171 3 朱培钺.陈熙琛,贾均,张宝书,刘贤功.哈尔滨工业大学科学研究报告,第155期,1979 4 神户博太郎主编,刘振海,朴东奎,吴庸烈译.热分析,北京;化学工业出版社,1982:11 5 Loehberg K, Pattanayak DR. Aluminium, 1976; 52: 368 6 黄良余,王玉琮,翟春泉,丁文江.金属学报,1986;22:A310 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed