35CrMo钢氩离子轰击硫氮碳共渗  

The Effeet of Argon Ion-bomdardmint on Ionic Sulphocarbonitriding for 35CrMo Steel

作　　者：李正林[1] 马涛[1] 王庆祝[1] 张翔[1] 

机构地区：[1]西安公路学院机械系

出　　处：《西安公路学院学报》1993年第2期75-78,共4页

摘　　要：氩离子轰击试验表明氩离子轰击使35CrMo钢工件表面的化合物层呈柱状晶形貌,大大提高了氮在化合物层中的扩散能力,保持了扩散层中氨的浓度梯度,从而为氮的继续渗入提供了通道。采用离子硫氮碳共渗、氩离子轰击、离子硫氮碳共渗工艺共同处理后的35CrMo钢制风冷机齿轮,有效渗层(HV>500)达0.2～0.3mm,总渗层达到0.5mm,使用寿命明显提高。Tests show that Ar Ion-bomdardment makes the layer of compounds on sruface of 35CrMo steel exist as columnar crystals, enhances the diffusifility of Nitrogen in the layer of compounds, and keepes concentration gradient in a diffusion layer to provide a channel for Nitrogen's diffussing continuously. About the 35GrMo steel gears treated by the process of ionie sulphocarbonitriding+Ar ion-bomdardment+ionic srlphocarbonitriding, the effective codiffusional layers (HV>500) reach into thickness of 0.2～0.3mm, the total codiffusional layers reaeh into 0.5mm. It's service life is prolonged.

关 键 词：氩离子轰击 硫氮碳共渗 有效渗层 

分 类 号：TG156.82[金属学及工艺—热处理]