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Sliding wear behaviors of electrodeposited Ni composite coatings containing micrometer and nanometer Cr particles ZHAO Guo-gang(赵国刚), ZHOU Yue-bo(周月波), ZHANG Hai-jun(张海军) College... nm. The friction and the wear performance of the co-deposited Ni-Cr composite coatings were comparatively evaluated by sliding against Si3N4 ceramic balls under non-lubricated conditions. It is found......
Industry Co.,Ltd., Abe, Ochiai-cho, Takahashi-shi, Okayama 716-0061, Japan) Abstract:The fixing of a silane coupling agent to Zn-Ni-silica (SiO2) composite coatings was studied for the purpose of developing a coating process as an alternative to chromating. The corrosion resistance of Zn-Ni-silica composite coatings was remarkably improved by the silica nanoparticles in the composite, which were......
Composite Electroplating to Obtain Ni-ZrO2 Nanocomposite Coatings Containing Monodispersed ZrO2 Nanoparticles GUO He-tong1,HOU Feng-yan1,WANG Wei1 (1.School of Chemical Engineering and Technology... nanoparticles in the composite coatings and only a very low volume percent of monodispered ZrO2 nanoparticles in Ni-ZrO2 composite coatings will result in higher hardness of the coating. 关键词:nanocomposite......
Thermodynamic principle and properties of electroplated RE-Ni-W-P-B4C composite coatings ZHU Cheng-yi(朱诚意), LI Guang-qiang(李光强), QIN Qing-wei(秦庆伟), MA Guo-jun(马国军) Key Laboratory... 0.10 to 0.33 during the abrasion process. The resistance to oxidation of the composite coatings is better than Ni-W-P alloy coatings and worse than that of RE-Ni-W-P-SiC coatings. Key words: RE-Ni-W......
) composite coatings were prepared by adding SiC and PTFE into electroless nickel (copper)-phosphorus alloy baths. The effects of addition of SiC and PTFE on depositing rate, microhardness, wear resistance and anti-friction of the resulted composite coatings were studied. The results indicated that electroless nickel (copper)-phosphorus alloy coatings were greatly improved in depositing rate, microhardness......
Al2O3-Y2O3 Nano- and Micro-Composite Coatings on Fe-9Cr-Mo Alloy He Yedong1,Yao Mingming2,Zhang Ying2,Yang Qiuxia2 (1.Beijing Key Laboratory for Corrosion, Erosion and Surface Technology... coatings were deposited on Fe-9Cr-Mo substrates by using sol-gel composite coating technology. The processing includes dipping samples in a sol-gel solution dispersed with fine ceramic powders, which......
) techniques. Ni-TiB2-Dy2O3 composite coatings showed higher microhardness,lower wear mass loss and friction coefficient compared with those of the pure Ni coating and Ni-TiB2 composite coatings. The wear mass loss of Ni-TiB2-Dy2O3 composite coatings was 9 and 1.57 times lower than that of the pure Ni coating and Ni-TiB2 composite coatings,respectively. The friction coefficient of pure Ni coating,Ni-TiB2......
Crystallization characteristics of Ni-W-P composite coatings reinforced by CeO2 and SiO2 nano-particlesXU Rui-dong(徐瑞东)1, 2, ZHAI Da-cheng(翟大成)1, 2, ZHANG Yu-zhi(章俞之)3(1. State Key Laboratory... and Technology,Kunming 650093, China;3. Key Laboratory of Inorganic Coating Materials, Chinese Academy of Sciences, Shanghai 200050, China)Abstract:Ni-W-P composite coatings reinforced by CeO2......
and friction coefficient of composite coatings were investigated,respectively. The microhardness of the Ni-TiB2-Sm2O3 composite coatings was 19.35%,16.58%,2.03% higher than that of the Ni coating,Ni-Sm2O3 and Ni-TiB2 composite coatings,respectively. The wear weight loss of the Ni-TiB2-Sm2O3 composite coatings was 7,2.33,1.22 times lower than that of the Ni coating,Ni-Sm2O3 and Ni-TiB2 composite coatings......
and friction coefficient of composite coatings were investigated,respectively. The microhardness of the Ni-TiB2-Sm2O3 composite coatings was 19.35%,16.58%,2.03% higher than that of the Ni coating,Ni-Sm2O3 and Ni-TiB2 composite coatings,respectively. The wear weight loss of the Ni-TiB2-Sm2O3 composite coatings was 7,2.33,1.22 times lower than that of the Ni coating,Ni-Sm2O3 and Ni-TiB2 composite coatings......