论文部分内容阅读
近来,人们乐于研究和采用,氮化处理后在奥氏体状态下再加热后淬火,或者用高频短时间表面加热进行淬火,以达到提高耐磨性和耐疲劳性的目的。本研究的目的在于,将钢材软氮化处理后,进行高频淬火,利用前面的氮化处理在内部含扩散了的氮的扩散层丫’(Fe’N)使后面的处理马氏体化而强化了试样,从而提高其机械性能。本文报告了,为得到上述基础资料,根据从最表面到内部的组织变化和利用X射线衍射而研究这两种情况和硬度变化特性等的结果。一、试样和试验条件表1为试验用钢牌号和化学成分,表2是软氮化处理时间。试样尺寸
Recently, people are willing to study and adopt, after nitriding, re-heating in the austenitic state after quenching, or short-term high-frequency surface heating for quenching, in order to achieve the purpose of improving wear resistance and fatigue resistance. The purpose of this study is to soft nitriding a steel material followed by induction quenching and then using a previous nitriding treatment to diffuse a diffused nitrogen diffusion layer (Fe’N) inside to subject the subsequent treatment to martensitic transformation While strengthening the sample, thereby enhancing its mechanical properties. This paper reports the results of studying these two cases and the change characteristics of hardness according to the change of the microstructure from the top surface to the interior and the use of X-ray diffraction in order to obtain the above basic data. First, the sample and test conditions Table 1 for the test steel grade and chemical composition, Table 2 is nitrocarburizing time. Sample size