摘要
将微米级、亚微米级、纳米级 3种粒度的Al2 O3 与Ni基自熔性合金制成复合粉末后 ,用氧乙炔焰热喷焊工艺制备出复合涂层 ,研究了载荷大小、磨损时间等对涂层耐磨粒磨损性能的影响。结果表明 ,在低载荷下 ,纳米Al2 O3复合涂层的耐磨性最好 ;而在高载荷下 ,微米Al2 O3 复合涂层的耐磨性最好。
A composite coating was prepared by oxygen and acetylene thermal spray welding using the powders composed of Ni-based powder and nano-Al2O3, sub-micron-Al2O3, micron-Al2O3. The effects of the load and time on abrasive resistance were studied. The results show that the mass-loss decreases with the time goes, and composite coating with nano-Al2O3 have the best abrasive resistance under lower load, while the composite coating with micron-Al2O3 have the best abrasive resistance under heavier load.
出处
《润滑与密封》
EI
CAS
CSCD
北大核心
2004年第6期52-54,共3页
Lubrication Engineering
基金
江苏省自然科学基金资助项目 (BK2 0 0 0 0 12 )