标题：Self grain refinement of metals
作者：Bian, Xiufang ;Zhou, Xinguo ;Liu, Guangrong ;Liu, Xiangfa ;Ma, Jiaji
作者机构： Shandong University of Technology, Ji'nan, 250061, China; Colledge of Mat. Sci. and Eng., Shandong University of Technology, Ji'nan 250061, China
来源：Jinshu Xuebao/Acta Metallurgica Sinica
摘要：A new technology of grain refinement of metals, self grain refinement, obtained by the utilization of the nucleation potential inherent in commercially pure Al, Cu and Sb has been described. The effects of the cooling rate, adding amount and holding time in molten metal for the rapidly solidified sheet of these metals on self grain refinement have been examined. The effectiveness of the self grain refinement of aluminium is equal to that of a master Al-Ti-B added in the aluminium. Cu and Sb also have the effectiveness of the self grain refinement. The mechanism of the self grain refinement of metals has been studied on the heredity theory of metals.