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超细晶粒处理也叫快速热处理,国外在十多年前就已提出了这种工艺。美国R.A.Grange在1963年研究出了一种生产超细晶粒钢的方法,叫做循环热处理,即快速热处理。1969年美国召开了第16次陆军材料研究会议,介绍了有关超细晶粒金属的研究成果,但在大截面零件上的应用迄今未见报导。近年来,我国也在积极试验应用这一工艺,并已在枪械零件和其它产品上取得了很好成果。
Ultra-fine grain processing is also called rapid heat treatment, which has been proposed by foreign countries more than a decade ago. The United States R.A. Grange in 1963 developed a method of producing ultrafine grained steel, called cyclic heat treatment, that is, rapid heat treatment. In 1969, the United States held the 16th Army Materials Research Conference, introducing the research results of ultrafine grained metals, but the application to large-section parts has not been reported so far. In recent years, our country is also actively testing the application of this technology and has achieved very good results on firearms parts and other products.