首页|期刊导航|西南交通大学学报(英文版)|Microstructure and Contact Fatigue Behavior of Nano-SiO2/Ni Coating Prepared by Electro-Brush Plating
西南交通大学学报(英文版)2003，Vol.11Issue(1)：46-52,7.
Microstructure and Contact Fatigue Behavior of Nano-SiO2/Ni Coating Prepared by Electro-Brush Plating
Microstructure and Contact Fatigue Behavior of Nano-SiO2/Ni Coating Prepared by Electro-Brush Plating
摘要
Abstract
The composite coating nano-SiO2/Ni was prepared by co-depositing nano-SiO2 particles with pure nickel through electro-brush plating. By taking into account the effect of microstructure, heat-treatment and load on the contact fatigue life, the anti-contact fatigue behavior of the composite coating was examined and compared with that of nickel coating. As a result, the contact fatigue life decreased with the increasing of load. The contact fatigue lives of nano-SiO2/Ni coating were 16.5% and 45.2% higher than those of nickel coating respectively under the loads of 60 N and 140 N, and 326.3% higher than its counterpart of nickel coating after annealed under the load of 140 N. From the SEM image of fatigue fracture, it has been observed that the fatigue fracture of the composite coating initiated in the sub-surface as well as at the track surface due to the huddling of units, and propagated along the interface between grain units.关键词
electro-brush plating/contact fatigue behavior/nano-composite coatingKey words
electro-brush plating/contact fatigue behavior/nano-composite coating分类
矿业与冶金引用本文复制引用
蒋斌,徐滨士,丁培道..Microstructure and Contact Fatigue Behavior of Nano-SiO2/Ni Coating Prepared by Electro-Brush Plating[J].西南交通大学学报(英文版),2003,11(1):46-52,7.基金项目
Supported by the National 973 Project (No.G1999065009) and by UK/China Science & Technology Collaboration Fund (No.2002M3). （No.G1999065009）
