论文部分内容阅读
在工程应用中增强材料的腐蚀磨损性能是至关重要的。采用电沉积技术,研究从氯化物槽池中得到的Zn-Al-SnO 2-TiO 2(Zn-Al-Sn-Ti)复合薄膜的结构、电氧化性能。采用扫描电子显微镜联合能谱仪、光学显微镜和X射线衍射,研究薄膜的微观结构。采用动电位极化技术,研究在3.65%Na Cl溶液中薄膜的电化学氧化和腐蚀行为,并采用原子力显微镜对其进行表征。采用高钻石硬扫描显微硬度测试仪和CERT往复滑动仪,研究电沉积薄膜的硬度和磨损行为。结构发现,成功获得了共沉积的复合材料和粒子,并得到了均匀、精细的嵌入颗粒结构以及改善的微观力学性能。所制备的四元薄膜的耐腐蚀性、硬度和稳定的耐磨性得到显著提高。
It is of crucial importance to enhance the corrosive wear properties of materials in engineering applications. Electrodeposition technology was used to study the structure and electrooxidation properties of Zn-Al-SnO 2 -TiO 2 (Zn-Al-Sn-Ti) composite films obtained from chloride bath. The microstructure of the films was investigated by scanning electron microscopy and energy dispersive spectroscopy, optical microscopy and X-ray diffraction. The electrochemical oxidation and corrosion behavior of the films in 3.65% NaCl solution were investigated by potentiodynamic polarization and characterized by atomic force microscopy. The hardness and wear behavior of the electrodeposited films were investigated by using a high diamond hard-sweep microhardness tester and a CERT reciprocating slide. The structure was found to successfully obtain co-deposited composites and particles with uniform, fine embedded particle structure and improved micromechanical properties. The prepared quaternary film has markedly improved corrosion resistance, hardness and stable abrasion resistance.