目前,绝大多数的化学热处理过程事实上都是仅仅通过改变处理温度和保温时间来进行控制的。但是,调整工艺参数并非总是能成功地使扩散层获得所需要的组织,因此氮化后的零件也就不能保证具备合乎需要的在磨损、腐蚀、交变弯曲等条件下工作的性能。本文指出了通过在低氨气压力下氮化以改变扩散层组织的可能性。莫斯科公路汽车学院业已研究过钢的真 At present, most of the chemical heat treatment processes are in fact controlled by changing the treatment temperature and holding time. However, it is not always possible to adjust the process parameters to obtain the desired microstructure of the diffusion layer. Therefore, nitrided parts can not guarantee the desired performance of work under wear, corrosion, alternating bending and the like. This paper points out the possibility of changing the texture of the diffusion layer by nitriding at low ammonia pressure. Moscow Motor Institute has studied the real steel