Synthesis and Erosion Behaviors of Nanoscale Coatings Prepared by Wire Arc Spraying
The effects of erosive parameters, such as impact angles and environment temperature, on erosion properties of FeBSiCrMnNb nanoscale coatings were investigated. A series of coatings were prepared by wire arc spraying process. The microstructure of the coating consists of amorphous and a (Fe,Cr) nanocrystalline phase. The nanocrystals with average size of 39 nm are homogenously dispersed in amorphous matrix. The erosion results reveal that the coating exhibits better erosion resistance at lower impact angle. The erosion rates of the coating decrease as function of environment temperature. The relatively erosion resistance of the nanoscale coating is 3.7 times higher than that of AISI1045 steel substrate at 650 °C. The main failure mechanism of the coating is brittle fracture.
coatings nano materials abrasive
Cheng J B Liang XB Wang Z H Xu B S
College of Mechanics and Materials, Hohai University, Nanjing 210098, China National Key Laboratory National Key Laboratory for Remanufacturing, Beijing 100072, China College of Mechanics and Materials, Hohai University, Nanjing 210098, China
国际会议
西安
英文
144-147
2011-05-11（万方平台首次上网日期，不代表论文的发表时间）