目前,氮化层深度的计算及其显示法,尚未得到基本的统一和解决。关于深度的计算,对于38CrMoAl钢,有的主张算到原始组织,有的认为只应该算过共析层,但大部分厂矿的意见,认为还是计算到共析层比较合理,我们也同意这种看法。此外对结构钢20Cr、40Cr、45号钢的气体氮化和软氮化的氮化层,大都认为应算 At present, the calculation of nitride layer depth and its display method have not been basically unified and solved. On the depth of calculation, for 38CrMoAl steel, some advocates count the original organization, and some think that should only be counted eutectic layer, but most of the factory’s view, that calculation of the eutectoid layer or more reasonable, we also agree with this view. In addition to the structural steel 20Cr, 40Cr, 45 steel gas nitrided nitrided nitrided and nitrocarburized, most think should be considered