脉冲电场作用时间及冷却方式对1Cr18Ni9Ti钢固体渗氮影响的研究  

The Sutdy on the Effection of the Time of the Electric Pulse Treatment to the Solid Nirtiding of the 1Crl8Ni9Ti Steel

作　　者：赵斌[1] 孙玉玲[1] 公旺 赵亮[1] 刘兴江[1] 

机构地区：[1]辽宁工业大学材料科学与工程学院,锦州121000

出　　处：《金属材料研究》2013年第4期1-4,共4页Research on Metallic Materials

基　　金：辽宁省教育厅资助项目（L2012223）

摘　　要：研究了1Crl8Ni9Ti不锈钢在不同时间的电脉冲作用下的固体软氮化工艺。采用金相显微镜观察、显微硬度计硬度测试等方法，对1Crl8Ni9Ti钢的渗层进行了研究。结果表明，在550℃保温1h后连续脉冲6h处理所得的渗层最厚，但表面产生裂纹甚至剥落。每小时脉冲处理15rain，随炉冷却方式可得到较深渗层且氮化层表面整齐清晰，渗层厚度大于普通工艺中的氮化层厚度。The solid nirtiding of the tric pulse treatment has been studied. 1Crl8Ni9Ti steel The effective nitr under the different time of ided depth of 1Cr18Ni9Ti the elec was served by metallographic microscope and the hardness was obtained by microhardness test. The experimental results show that the thickest nitrogen layer can be obtained when the pul- sing current is acted for 6 h after insulation for 1 hour at 550 ℃. But the surface cracks are formed and even they are peeled off. Neat and clear nitrogen layer can be obtained when it is pulsed 15 min per hour before furnace cooling. And the effect is much better than the ordina- ry process.

关 键 词：1CRL8NI9TI 电脉冲处理时间 固体渗氮 

分 类 号：TG142.71[一般工业技术—材料科学与工程]