本文關(guān)鍵詞： Ni-SiC復(fù)合鍍層 微米SiC 耐磨 抗氧化性能　出處：《中國有色金屬學(xué)報(bào)》2015年06期 　論文類型：期刊論文

【摘要】：采用雙脈沖復(fù)合電鍍技術(shù),在瓦特型鍍液中,制備了含微/納米SiC顆粒的Ni基復(fù)合鍍層,研究鍍液中納米SiC添加量對(duì)復(fù)合鍍層微觀形貌、摩擦性能和抗氧化性能的影響。結(jié)果表明:在SiC顆粒(5μm)濃度為10 g/L的鍍液中,添加納米SiC和Ni-SiC復(fù)合鍍層鎳擇優(yōu)取向由晶面(200)轉(zhuǎn)變?yōu)榫?111);當(dāng)SiC(40μm)濃度為4.0 g/L時(shí),復(fù)合鍍層顯微硬度最大,為456 HV;復(fù)合鍍層摩擦因數(shù)最小,平均值為0.28,為微米復(fù)合鍍層的1/2;經(jīng)900℃氧化100 h后,氧化質(zhì)量增加為6.025 mg/cm2,為微米復(fù)合鍍層的1/3。
[Abstract]:Ni based composite coatings containing micro / nano SiC particles were prepared in Watt bath by double pulse composite electroplating technology. The microstructure of the composite coatings was studied by the addition of nano SiC in the bath. The results show that when the concentration of SiC particles is 5 渭 m), the Ni preferred orientation of SiC and Ni-SiC composite coatings is changed from crystal plane to crystal plane, and when the concentration of SiC(40 渭 m is 4. 0 g / L, the preferred orientation of Nano SiC and Ni-SiC composite coating is changed from crystal plane to crystal plane, when the concentration of SiC(40 渭 m is 4. 0 g / L. The microhardness of composite coating is the highest (456 HVV), the friction coefficient of composite coating is 0.28, which is 1 / 2 of that of micron composite coating, the oxidation mass of composite coating increases to 6.025 mg / cm ~ 2 after oxidation at 900 鈩，

本文編號(hào)：1506801