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Citation: Wang Hongzhi, Yao Suwei, Zhang Weiguo. Surface Phosphating of Amorphous Fe-W Deposit and Its Corrosion Behavior in NaCl Solution[J]. Chinese Journal of Applied Chemistry, ;1999, 16(1): 104-106. shu

Surface Phosphating of Amorphous Fe-W Deposit and Its Corrosion Behavior in NaCl Solution

1.
Institute of Chemical Engineering, Tianjin University, Tianjin 300072

Received Date: 20 July 1998
Available Online: 23 October 1998
Fund Project: 国家自然科学基金资助课题(59371062) (59371062)

A fine phosphate coating was fo rmed on the surface of amorphous Fe-W deposit after phosphating in zincous phosphating solution. The anodic polarization curves show ed that the pitting potential of Fe-W deposit moves about 1.4 V tow ard noble after phosphating. The immersion test showed that the corrosion resistance of Fe-W deposit against Cl^- after phosphating has increased and its corrosion rate is about one fifth of that of the original FeW deposit.
- amorphous Fe-W deposit,
- phosphating,
- corrosion
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