科研之友
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摘要
The trivalent chromium coatings were deposited on the pure aluminum substrate using a thin zincates interlayer. Zincates has considerably influenced in the formation of trivalent chromium deposit on the pure aluminum substrate. The plating temperatures, plating times and different pH ranges had significant effects on the thickness, uniformity and microstructure of trivalent chromium plating on the pure aluminum substrate. Results show the average thickness for homogenous chromium coating without pitting and microcracks was 35 mu m at 30 degrees C, pH = 2 and 40 min. The Vickers microhardness of the chromium coating was about HV 8.3 GPa under a load of 1 N. Experimental results were mathematically modeled with the response surface methodology (RSM) method by statistical software SPSS 19 and Design expert V6 to predicted coating thickness at different coating conditions.
- 出版日期2014-3
- 单位大连理工大学
