Effect of Chromium Nitride on Microstructure and Properties of Fe-based Laser Cladding Layer

摘要：

In this paper, the Fe-based cladding layer was prepared on 42CrMo substrate by laser cladding mixture containing chromium nitride. The effect of chromium nitride on microstructure and property of cladding layer were studied. The experimental results indicate the chromium nitride is unstable during the process of laser cladding. It is very difficult to obtain chromium nitride in the laser cladding layer. However, the addition of chromium nitride in cladding powders could promote the formation of austenite phase, and increase the microhardness of cladding layer. The reason about increasing the microhardness of cladding layer is the formation of little carbide and solution strengthening of nitrogen, not the strengthening from chromium nitride.

作者: LI Gui-hua ZOU Yong ZOU Zeng-da DONG Xu-wei

作者单位: Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Educat Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Educat Jigang Group Heavy Machinery Limitted Company,Shangdong Jinan 250101,China

会议类型: 国际会议

会议名称: The 6th International Conference on Physical and Numerical Simulation of Materials Processing(第六届材料与热加工物理模拟及数值模拟国际学术会议 ICPNS 2010)

会议地点: 桂林

会议语种:英文

页码: 1-4

在线出版日期: 2010-11-16（万方平台首次上网日期，不代表论文的发表时间）