一种新型耐磨涂层的组织和性能研究  

Study on microstructure and property of a new type wear-resist coating

作　　者：赵利[1,2] 张鸿[1] 洪瑞江[3] 宋进兵[2] 李福海[2] 况敏[2] 

机构地区：[1]中南大学,湖南长沙410083 [2]广州有色金属研究院,广东广州510650 [3]中山大学,广东广州510275

出　　处：《材料研究与应用》2010年第2期110-114,共5页Materials Research and Application

摘　　要：以WC-10C04Cr和纳米不锈钢粉末及其混合粉末为原料，利用HVOF超音速火焰喷涂工艺制备了四种涂层，对涂层的显微组织、硬度、耐磨性能以及涂层的沉积效率和生产成本进行了研究．结果表明；当加入SHS7170质量分数为15％和35％时，涂层的致密度提高，硬度降低HV100～150．而加入35％SHS7170时涂层的耐磨性略有降低，加入15％SHS7170时涂层的耐磨性变化不大．使用WC10C04Cr和SHS7170混合粉末制备涂层可以减少涂层沉积时问和生产成本．Four coatings were prepared by means of HVOF process using WC-10Co4Cr powder, SHS7170 nano-crystalline stainless steel powder and their combinations in different proportions as raw materials. And the microstructure, micro-hardness,wear resistance,deposition efficiency and manufacture cost of the four coatings were studied and emphasized in this paper. The results indicated that the density of the coatings could be improved and the micro-hardness dropped about 100-150 when the addition of SHS7170 was 15% and 35% in weight, while their wear resistance reduced very little when the addition was 35% in weight and kept no change when the addition was 15% in weight. The addition of SHS7170 nano-crystal- line stainless steel powder to WC-10Co4Cr powder could decrease the deposition time of the coating and application cost.

关 键 词：WC-10Co4Cr 纳米不锈钢粉末 耐磨性能 超音速火焰喷涂 

分 类 号：TG174.44[金属学及工艺—金属表面处理]