金属学报  1994, Vol. 30 Issue (12): 540-544

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合金动态结晶的微观动力学机制

焦育宁;刘清民;杨院生;胡壮麒

中国科学院金属研究所

MICRODYNAMICAL MECHANISM OF DYNAMIC SOLIDIFICATION OF ALLOYS

JIAO Yuning;LIU Qingmin;YANG Yuansheng; HU Zhuangqi (Institute of Metal Research;Chinese Academy of Sciences;Shenyang)

焦育宁;刘清民;杨院生;胡壮麒. 合金动态结晶的微观动力学机制[J]. 金属学报, 1994, 30(12): 540-544.
, , , . MICRODYNAMICAL MECHANISM OF DYNAMIC SOLIDIFICATION OF ALLOYS[J]. Acta Metall Sin, 1994, 30(12): 540-544.

摘要 参考文献 相关文章 Metrics 全文: PDF(336 KB)   摘要: 利用原子簇团跳跃理论模型，建立了动态结晶条件下的晶体生长速度微观动力学模型，指出古典连续生长（ＣｏｎｔｉｎｕｏｕｓＧｒｏｗｔｈ或ＣＧ）模型仅是本模型的一个特例．理论分析结果表明，晶体的生长速度除与金属本身性质有关外，还与过冷度△Ｔ、外力Ｆ有关．利用此模型分析了流体流动条件下柱状晶、柱状枝晶的某些结晶现象． 关键词 ： 动态结晶,  微观动力学,  连续生长模型     Abstract：On the basis of the model of atomic cluster jump theory,a microdynamical model of crystal growth rate was developed under condition of the dynamic solidification.The classical continuous growth model seems to be only one of the special case.Theoretical analysis showed that the crystal growth rate is dependent on not only the nature of metal but also the supercooling,△T, and external force, F. Certain solidification behaviours of columnar crystals and columnar dendrites under fluid flow condition are explained by using of the model.JIAO Yuning, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015 Key words： dynamic solidification    microdynamics    continuous growth model      基金资助:快速凝固国家重点实验室和国家石油化工总公司资助 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 焦育宁 刘清民 杨院生 胡壮麒 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1994/V30/I12/540 1FlemingsMC,AdamsCM,HuckeEE,TaylorHF．TransAFS,1956;54:6362焦育宁等．材料工程,1993;7:143刘山等．金属科学与工艺,1992,11(2):754MurakamiK,AiharaH,OkamotoT．ActaMetall,1984;32:9335何国等．93'全国相变学术会论文集,北京,1993:3486李庆春编．铸件形成理论．北京:机械工业出版社,19817胡汉起．金属凝固．北京:冶金工业出版社,19858王家忻,黄积荣,林建生．金属的凝固及其控制．北京:机械工业出版社,1977 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed