This paper deals with the properties, the usage state and the problems of alloy grain refiners, which were at present used in industry.

分析研究了工业生产中目前所使用的合金细化剂的性能、应用状态以及存在的问题。

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The research about the effects of mechanical physics, physical fields, grain refiners on the grain refinement of Aluminum and alloys is analyzed and discussed;

分析讨论了机械物理、物理场、晶粒细化剂对铝及合金晶粒细化处理的研究及其细化机理；

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The mechanism of refining the pure Al and its alloys is discussed. The grain refinement efficiency and characteristics of the most popular grain refiners are also discussed.

从细化机理入手论述了铝及其合金的细化效果以及常用的晶粒细化剂的优缺点。

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