一、前言 关于高速钢真空油淬火出现的“白层”现象,从发表的资料来看,国外做了较多的试验研究。而国内有的厂家在生产或试验中也出现了同样的现象,但并没有进行深入的研究。为此,本文介绍近几年来,日本学者对高速钢真空油淬火时表面出现白层的探讨和叙述高速钢真空热处理中存在的问题。 First, the preface On the “white layer” phenomenon of high-speed steel vacuum oil quenching, from the published data, do more experimental studies abroad. Some domestic manufacturers in the production or test also appeared the same phenomenon, but did not conduct in-depth study. For this reason, this article describes the recent years, Japanese scholars on the high-speed steel vacuum oil quenching surface white layer of discussion and describes the high-speed steel vacuum heat treatment problems.