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微重力下的两相流动和传热及其研究方法
引用本文:吕成道,李佛金,程尚模,李万林,文耀普.微重力下的两相流动和传热及其研究方法[J].大自然探索,1997(3).
作者姓名:吕成道  李佛金  程尚模  李万林  文耀普
作者单位:华中理工大学煤燃烧国家重点实验室 中国航天总公司第501设计部
摘    要:本文对微重力下的两相流动中的几个基本问题、两相流动的主要流型进行了一定的综述,并对微重力下的气液两相流动传热规律的研究方法进行了小结。

关 键 词:微重力  两相流动传热  流型  研究方法

THE THEORETICAL STUDY OF AMORPHOUS CRYSTALLIZATION UNDER THE ACTION OF SHOCKWAVE
Zhang Zhongming,He Jun.THE THEORETICAL STUDY OF AMORPHOUS CRYSTALLIZATION UNDER THE ACTION OF SHOCKWAVE[J].Discovery of Nature,1997(3).
Authors:Zhang Zhongming  He Jun
Abstract:It was observed in previous work that shockwave induce metal glass to nanocrystalline matal,and in this paper a tentative theory has been given.Metal glass is not uniform in micro perspective ,and it has many clusters and dislocations.Shockwave loading makes dislocations move and the cluster hampers the spread of shockwave.Dislocations pile up around clusters.The interaction between shockwave and local stress field makes cluster rotate ,so the atoms of interclusters precipitate into clusters and clusters grow up into micro grains.
Keywords:shockwave  cluster  dislocation  amorphous crystallization
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