高速电弧喷涂FeMnCr／Cr3C2涂层的组织与性能  

Microstructure and properties of high velocity arc sprayed FeMnCr/Cr_3C_2 coatings

作　　者：罗来马[1] 俞佳[1] 刘少光 孙乃荣[3] 赵琪[3] 郦剑[1] 

机构地区：[1]浙江大学材料科学工程系,浙江杭州310027 [2]温州科得力新特材料有限公司,浙江温州325029 [3]江苏科技大学材料科学与工程学院,江苏镇江212003

出　　处：《材料热处理学报》2009年第3期174-177,共4页Transactions of Materials and Heat Treatment

摘　　要：采用高速电弧喷涂技术在20钢表面制备了FeMnCr/Cr3C2涂层。结合光学显微镜、维氏硬度、X射线衍射、场发射扫描电子显微镜、能谱分析等分析方法对喷涂层的微观组织和性能进行研究。结果表明:FeMnCr/Cr3C2涂层具有固溶体相和氧化物相相互间隔的层叠结构特点;涂层具有较高的结合强度和显微硬度,良好的抗热震性和耐高温冲蚀磨损性能。FeMnCr/Cr3 C2 coatings on 20 steel substrate were prepared by high velocity are spraying. Mierostrueture and properties of the coatings were studied by means of optical microscope, vieker-hardness measurement, X-ray diffraction, scanning electron microscopy and energy dispersion spectrum. The results show that the coatings are eharaterized by layer structure consisting of successive layers contained solid solution phases and oxide phases and have relatively high bond strength with substrate and higher micro-hardness, excellent thermal shock resistance and high- temperature erosion resistance.

关 键 词：高速电弧喷涂 FeMnCr/Cr3C2涂层 抗热震性 抗高温冲蚀磨损 

分 类 号：TG174.44[金属学及工艺—金属表面处理]