Microstructure and grain abrasion properties of Cr3C2-NiCr coating prepared by laser cladding method
Cr3C2-NiCr has high quality of wear resistant properties and is widely used in abrasive environment.In this paper,Cr3C2-NiCr coating was prepared on 45 steel by laser cladding technology.Analysis and research of the coatings were achieved by SEM and XRD to determine the main component and the different region on coatings.The hardness and the element component were investigated by micro-hardness tester and EDS.Abrasion tests were performed to contrast the wear resistance of two materials.The results indicate that the hardness of the coatings is nearly 3 times as the substrate.The coatings are well combined with the substrate and the phase of Cr3C2 has a large proportion in the coatings.Abrasion tests show that the average of wear rate on substrate is 5.2 times as the coatings.
Laser cladding Cr3C2-NiCr coating Microstructure Wear rate
Long Wei Zongde Liu Xinzhi Li Mingming Yuan Chengyuan Zhong
Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of Ministry of Education, North China Electric Power University, Beijing 102206, China
国际会议
香港
英文
3-7
2012-12-11（万方平台首次上网日期，不代表论文的发表时间）