一、前言 处理法(即盐浴软氮化法,简称软氮化法,下同——译者)属软氮化法,它同渗碳、高频表面淬火等表面硬化法相比,具有处理温度低(570℃)因而尺寸变化小,处理后勿需再进行精加工而能直接使用等优点,所以被广泛采用。以往,有关软氮化的研究中,对疲劳性能的影响 First, the preamble treatment method (ie salt bath soft nitriding method, referred to as soft nitriding method, the same below - translator) is a soft nitriding method, it carburizing, high frequency surface hardening and other surface hardening compared with the treatment Therefore, it is widely used because of its low temperature (570 ℃), small size change, no need of further finishing after processing, and direct use. Previously, the impact on fatigue performance in the study of nitrocarburizing