The Formation Process of Black Trivalent Chromium Conversion Coating on Zn Electrodeposit
A black trivalent chromium conversion coating (CCC) was obtained on Zn deposit in chromium trichloride solution at 55 ℃.The formation process of trivalent CCC on Zn deposit were thoroughly investigated by using X-ray fluorescence spectrometer and X-ray photoelectron spectroscopy in combination with atomic force microscopy surface analysis.The trivalent CCC on Zn deposit is consisted of Zn,Cr,O,Ni,Co,P and N elements,with visible micro-cracks on the films surface.The growth rate,the surface color and the morphology of this conversion coating vary with the dipping time.
trivalent chromium Conversion coating Zn deposit
Haiping Liu Sifu Bi Xiangguo Teng Yuanchun Yu
School of Marine Science and Technology,Harbin Institute of Technology,Weihai 264209,China
国际会议
西安
英文
676-679
2012-06-12(万方平台首次上网日期,不代表论文的发表时间)