| 摘要: |
| 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SnCoX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。 |
| 关键词: 纳米晶粒 Sn-Co-X合金 替代装饰铬镀层 镀铬 |
| DOI： |
| 分类号: |
| 基金项目: |
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| Nano-crystalline Sn-Co-X Alloy Alternative to Decorative Chromium Plating |
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HUI Wen-hua, GU Yan-hong, LIU Jia-jun, MENG Fan-juan, ZHANG Zhi-jun, LI Yue-liang, LI Zhan-ping, CAO Li-li, ZHANG Xiao-han1,2,3
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1. Shining Surface Systems, Inc.(SSSI), Ewing, NJ 08628, USA;2. Department of Mechanical Engineering, University of Alaska Fairbanks, Juneau, Alaska 99812, USA;3a. Department of Mechanical Engineering, 3b. Department of Themmoenergy, 3c. Analysis Center, Tsinghua University, Beijing 100083
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| Abstract: |
| Decorative chromium demand in the worldwide market is more than three times of hard chromium. However, chromium plating process has long been known to be hazardous. The corrosion resistance of nanocrystalline Sn-Co-X alloy intended as an alternative for decorative chromium has been studied. The corrosion resistance of Sn-Co-X is better than trivalent chromium and hexavalent chromium, and it is much better than coarser gained Sn-Co alloy. The microstructures of Sn-Co-X alloy were analyzed by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and atomic emission spectrometry (AES) before and after corrosion. The mechanism of its excellent corrosion resistance was described. |
| Key words: nano-crystalline Sn-Co-X alloy alternative decorative chromium chromium plating |
