不锈钢加铁稀土离子硫氮碳共渗工艺的研究  

Study on Technology of the Rare-earth Ionic Carbon-sulfonitriding with Iron for Stainless Steel

作　　者：张翔[1] 张俊[1] 

机构地区：[1]长安大学工程机械学院,陕西西安710064

出　　处：《表面技术》2004年第2期40-42,共3页Surface Technology

摘　　要：　对1Cr18Ni12Mo2Ti奥氏体不锈钢在稀土催渗条件下进行了加与未加辅助铁板的离子硫氮共渗对比试验。试验表明:稀土具有很强的催渗作用。在与辅助铁板的共同作用下,可使奥氏体不锈钢的氮化温度降低60℃,减小了零件的变形;在相同的共渗温度条件下,可使氮化层深度比离子硫氮碳共渗增加30%以上,比未加辅助铁板的稀土离子硫氮碳增加10%。且稀土元素可渗入钢表层,细化渗层组织,促进氮碳化合物弥散细小析出,提高渗层硬度。A contrast of the ionic sulfonitriding with or without iron plate was conducted under the condition of rare-earth catalysis for austenite 1Cr18Ni12Mo2Ti stainless steel. The result showed that the rare earth has a strong catalytical action. Under the effects of a iron plate, the nitriding temperature of the austenite stainless steel decreased by 60℃ with less deformation for parts. At the same permeating temperature condition, the depth of nitriding layer could increase by 30% compared with the ionic cardon-sulfonitring, and by 10% with rare-earth ionic carbon-sulfonitriding without the permeated layer, making the nitriding-carbon compound precipiate in fine and scattered form, and enhancing the hardness of the permeated layer.

关 键 词：离子硫氮碳共渗 稀土催渗 溅射 奥氏体不锈钢 铁板 

分 类 号：TG156.82[金属学及工艺—热处理]