论文部分内容阅读
装饰铬在全世界的市场需求量是硬铬的3倍,长期以来镀铬工艺是众所周知的有毒工艺,由于电镀纳米Sn-Co-X合金具有与Cr6+非常接近的颜色及更好的耐腐蚀性,且对环境和人体安全,是取代Cr6+与Cr3+的极好选择。纳米Sn-Co-X的耐腐蚀性优于Cr6+和Cr3+,更优于常规晶态的Sn-Co合金。用扫描电镜(SEM)、透射电子显微镜(TEM)、X射线光电子能谱仪(XPS)和原子发射光谱(AES)对纳米Sn-Co-X合金的微观结构及腐蚀前后的表层变化进行了分析,阐述了纳米Sn-Co-X合金优异的耐腐蚀性机理。
Decorative chrome in the world market demand is hard chromium 3 times the chrome plating process has long been known for toxic processes, due to the plating of nano-Sn-Co-X alloy with Cr6 + very close to the color and better corrosion resistance, And the environment and human security, is an excellent choice to replace Cr6 + and Cr3 +. The corrosion resistance of nano-Sn-Co-X is better than that of Cr6 + and Cr3 +, which is better than the conventional crystalline Sn-Co alloy. The microstructure of Sn-Co-X alloy and the surface changes before and after corrosion were analyzed by SEM, TEM, XPS and AES. , Elaborated the nanometer Sn-Co-X alloy excellent corrosion resistance mechanism.