摘要
从Fe—N相图中各相的形成条件入手,提出了减少白层至最低限度和控制白层的相组成是有无脆性的决定因素。依据化学动力学原理和内扩散理论,研制成功了无脆性快速气体渗氮新工艺。该工艺已在实际生产中得到成功的应用,可缩短渗氮时间1/2～2/3,使工件达到无脆性,显著提高了零件的疲劳强度。
On the basis of the condition of forming different phase in Fe-N phase diagram,the authors provide a new idea i. e. to reduce white layer to the least and control its phase composition are the important factors to determine whether brittleness occurs. And according to chemical dynamics principle and internal diffusion theory, develop non-brittle rapid nitriding. This process can reduce the white layer and accelerate nitriding. It has been successfuly used in production, nitriding time shorten by 1/2～2/3, leading parts non-brittle and remarkably increasing the fatigue strength of parts.
出处
《金属热处理》
CAS
CSCD
北大核心
1992年第8期20-24,30,共6页
Heat Treatment of Metals
