针对常规渗碳工艺会削弱奥氏体不锈钢耐蚀性的问题,通过对现有气体渗碳技术进行改进,采用前处理活化、降低渗碳温度的方法,实现了奥氏体不锈钢渗碳兼顾表面强度与耐蚀性能的目标。 采用该工艺对AISI304 和 AISI316 奥氏体不锈钢进行渗碳处理,并分析渗层组织和性能,结果表明,在 470 ℃ 条件下,AISI316 不锈钢经气体渗碳处理后,渗碳层具有优异的耐蚀强化性能。

In view of the conventional carburization weakening austenitic stainless steel corrosion resistance problem, based on the existing gas carburizing technology was improved, using pretreatment activation, carburizing temperature reduction methods, realized the austenitic stainless steel carburized surface strength and corrosion resistant properties of the target . Using this process on AISI304 , AISI316 austenitic stainless steel carburizing processing, and get the austenitic stainless steel for low temperature carburizing organization performance carries on the analysis and research, research shows that under the condition of 470 ℃ , AISI316 stainless steel carburization treated by low temperature gas carburizing layer has excellent corrosion resistance improved performance.