耐蝕性的影響
(1. 廣東省城市建設(shè)技工學(xué)校 工業(yè)分析與質(zhì)量檢驗(yàn)專業(yè)，廣州 510650；
2. 華南理工大學(xué) 材料科學(xué)與工程學(xué)院，廣州 510641;
3. 湖南大學(xué) 材料學(xué)院，長(zhǎng)沙 410082；
4. 湖南大學(xué) 化學(xué)化工學(xué)院，長(zhǎng)沙 410082)
摘 要:
關(guān)鍵字: Pd-Co合金；電沉積；微觀結(jié)構(gòu)；耐蝕性
and corrosion-resistance of electrodepositing Pd-Co alloy
（1. Industry Analysis and Quality Check, Guangdong Province
Urban Construction Technical School,Guangzhou 510650, China;
2. School of Materials Science and Engineering, South China
University of Technology,Guangzhou 510641, China;
3. School of Material, Hunan University, Changsha 410082, China;
4. School of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China）
Abstract:The influence of process parameters on the microstructure and corrosion-resistance of Pd-Co alloy was studied by X-ray diffractometry and potentiodynamic polarization techniques. The results show that with the increase of current density, pH value and electrodeposited time, the crystallite size of Pd-Co alloy decreases firstly whereas increases subsequently. With the increase of bath temperature, the crystallite size increases. When the current density is 1.0 A/cm2, pH is 8.3, and deposited time is 30 min, the crystallite size of Pd-Co alloy reaches the minimum value, which is 8.239 6 nm. When the current density is 1.0 A/cm2, temperature is 35 ℃, pH is 8.3, Pd-Co alloy exhibits the maximum corrosion-resistance, but the electrodeposited time has little influence on it.
Key words: Pd-Co alloy; electrodepositing; microstructure; corrosion-resistance
