single microstructure

The major process parameters such as temperature,nitrogen potential were controlled to obtain a single-phase ε structure on compound layer.

在井式气体渗氮炉中,采用氨气加二氧化碳和氨气加甲醇两段法对碳钢和合金钢进行了氮碳共渗,通过控制共渗温度和氮势等主要工艺参数,使氮碳共渗表层化合物层获得单相ε组织,并探讨了温度对不同材料共渗层组织、渗层深度及显微硬度的影响。

The experimental results have shown that the quasi-single phase ferrite matrix micro-structure can be obtained by isothermal holding between 650℃ and 750℃ after deformation, and the pearlite could be eliminated.

结果表明,变形后在650-750℃等温100 s时可获得准单相铁素体组织从而基本消除珠光体组织。