激光重熔对45钢碳氮共渗层性能的改进研究  

Study on Improving Microstructure and Performance of Carbonitriding Layer on Surface of 45 Steel with Laser Remelting

作　　者：翁朝辉[1] 彭如恕[1] 粟俊杰[1] 王泽斌[1] 

机构地区：[1]南华大学机械工程学院,湖南衡阳421001

出　　处：《机械工程与自动化》2009年第1期87-89,共3页Mechanical Engineering & Automation

摘　　要：将45钢表面进行碳氮共渗试验,再将碳氮共渗层进行激光重熔试验。试验前后对比结果显示:碳氮共渗层表层出现的裂纹、黑带、组织粗大、网状化合物合成等组织缺陷已经得到很好的改善。Firstly, the carbonitriding experiment has been carried out on the surface of 45 steel, and then the laser remelting experiment has been done. By contrast with the two experiments mentioned above,the bug of organization like crack, black belt, coarse-microstructure in carbonitriding layer has been eliminated by laser remelting, and the distribute of hardness has been improved.

关 键 词：激光重熔 碳氮共渗 组织 

分 类 号：TG156.8[金属学及工艺—热处理]