Chromate Passivation of Zn-Ni Alloy Plating
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摘要: 采用一種新的鉻酸鹽鈍化處理方法,可進一步提高含鎳量為12%~13%的鋅鎳合金鍍層的化學穩定性,其耐蝕性比未鈍化的高5倍。研究了鉻酸鹽溶液成分及操作條件對鈍化膜形成機理的影響,并對膜的耐蝕性與防護機理進行了探討。Abstract: The chemical stability of Zn-Ni alloy coating containing 12%~13% Ni is further improved in this paper by means of a new chromation process and its corrosion resistance is five times higher than unchromation one.The effects of the composition of chromate solution and operation conditions on formed mechanism of conversion coating were investigated,and the protective mechanism of the coating was also discussed.
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Key words:
- electrodeposition /
- Zn-Ni alloy /
- conversion coating /
- chromate
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