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本文涉及离子氮化工艺,主要是关于工件含碳量和气氛中添加碳对硬度、化合物层厚度和扩散层厚度的影响。工件中含碳量增加,化合物层厚度增大,但扩散层厚度减小。另一方面,向气氛中添加最佳数量的碳,将使化合物层厚度增大,同时还增大扩散层厚度和硬度。获得最高硬度的离子氮化温度取决于离子氮化的时间,当处理时间足够长时,在450℃附近,可得到最高硬度。
This article relates to ion nitriding process, mainly on the carbon content of the workpiece and the added carbon in the atmosphere hardness, compound layer thickness and diffusion layer thickness. The carbon content of the workpiece increases, the compound layer thickness increases, but the diffusion layer thickness decreases. On the other hand, adding the optimum amount of carbon to the atmosphere will increase the thickness of the compound layer while also increasing the thickness and hardness of the diffusion layer. The highest nitridation temperature for obtaining the highest hardness depends on the time of the ionic nitridation, and when the treatment time is long enough, the highest hardness is obtained at around 450 ° C.