Citation:
Wang Hongyan, Ye Xiangrong, Liu Qin, Zhang Zhibing, Xin Xinquan. Constitution and Corrosion Resistance of Ni-Sn-P Alloy Coatings on Steel Surface[J]. Chinese Journal of Applied Chemistry,
;1999, 16(5): 45-48.
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The electroless Ni-Sn-P composite films on steel surface have been formed in the presence of lead acetate and multi ligands:butane dioic acid+malic acid+1 hydroxyethylene-1,1-diphosphonic acid. The influences of the bath composition and deposition conditions on the films and their corrosion resistance have been investigated by SEM, AES and XPS techniques. The film obtained has a thickness of 21μm with a metallic luster and low porosity and good corrosion resistance. The relative atomic percent contents of the films are Ni 67.03%, Sn 0.50%, P 30.40% and Fe 2.04%.
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Keywords:
- electroless plating,
- Ni Sn P alloy,
- corrosion resistance
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