冷喷涂Cu-Zn-Al_2O_3修复斯太尔发动机水道腐蚀区域的涂层性能分析  

The Coating Performance of Cold Spraying Cu-Zn-Al2O3 for Repairing the Waterway Corrosion Area of Steyr Engine

作　　者：陈利修[1] 陈铭[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《机械设计与研究》2013年第1期69-74,共6页Machine Design And Research

基　　金：2011国家支撑计划资助项目(2011BAF11B05)

摘　　要：采用冷气体动力喷涂技术,喷涂超细Cu-Zn-Al2O3复合粉来修复斯太尔发动机水道腐蚀区域,并对冷喷涂层的显微结构、物相组成和力学性能进行了表征。实验表明,超细Cu-Zn-Al2O3复合粉经超音速冷喷涂制备的涂层可与发动机缸体基体结合牢固,显微组织致密,测得的涂层抗拉强度值达到28.87 MPa,涂层表面硬度均值143.6HV0.05,耐磨性是斯太尔发动机基体的5.035 5倍,延长了设备服役期。The ultrafine Cu-Zn-Al2O3 composite powders have been sprayed on the corroded area of Steyr engine with Cold gas dynamic spray technology to restore its original performance, and cold-sprayed coating mierostructure, phase composition and mechanical properties were characterized. Experiments show that the coating sprayed by supersonic method with the uhrafine Cu-Zn-Al2O3 composite powders can be firmly combined with the engine block matrix , and microstructure is dense, the measured tensile strength of the coating reached 28.87MPa. The coating surface mean hardness is 143.6HV0. 05 , abrasion resistance is 5. 0355 times than the Steyr engine matrix. This renovate method extends the service period of engine.

关 键 词：冷喷涂技术 涂层性能 水道腐蚀 修复 

分 类 号：TQ051.5[化学工程]