CAJ | 학술논문

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.
장식락재전세계적시장수구량시경락적3배,장기이래도락공예시음소주지적유독공예,유우전도납미Sn-Co-X합금구유여Cr6+비상접근적안색급경호적내부식성,차대배경화인체안전,시취대Cr6+여Cr3+적겁호선택.납미Sn-Co-X적내부식성우우Cr6+화Cr3+,경우우상규정태적Sn-Co합금.용소묘전경(SEM)、투사전자현미경(TEM)、X사선광전자능보의(XPS)화원자발사광보(AES)대납미Sn-Co-X합금적미관결구급부식전후적표층변화진행료분석,천술료납미Sn-Co-X합금우이적내부식성궤리.
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.