Corrosion Resistance Properties of Arc Sprayed Zn-Al Pseudo-alloy Coating

PENG Mei-hua, HUANG Yu, CHENG Xi-yun, ZHOU Biao

Surface Technology ›› 2014, Vol. 43 ›› Issue (1) : 35-39.

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PDF(3880 KB)
Surface Technology ›› 2014, Vol. 43 ›› Issue (1) : 35-39.
Research and Exploration

Corrosion Resistance Properties of Arc Sprayed Zn-Al Pseudo-alloy Coating

  • PENG Mei-hua1, CHENG Xi-yun1, ZHOU Biao1, HUANG Yu2
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Abstract

Objective To enhance the Al content in the Zn-Al pseudo-alloy coating. Methods Zn-Al pseudo-alloy coating was prepared using aluminum and Zn80Al20 alloy by arc spraying on Q235 steel substrates. Salt spray test and electrochemical experiments were employed to compare the corrosion resistance behavior of the Zn-Al pseudo-alloy coating with the pure Al coating and Zn-Al alloy coating in chloride environments. Results The Zn-Al pseudo-alloy coating showed high activation capability and low corrosion rate. Conclusion The Zn-Al pseudo-alloy coating had higher corrosion resistance than the pure Al coating and Zn-Al alloycoating.

Key words

arc spraying; corrosion resistance; pseudo alloy; electrochemical corrosion; neutral salt spray test

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PENG Mei-hua, HUANG Yu, CHENG Xi-yun, ZHOU Biao. Corrosion Resistance Properties of Arc Sprayed Zn-Al Pseudo-alloy Coating[J]. Surface Technology. 2014, 43(1): 35-39

Funding

The Project of High Level Talents in Colleges of Guangdong Province(20111408184002)
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