新型Zn-22Al-Mg-Re合金涂层性能研究

中国腐蚀与防护学报

2013, Vol. 33

Issue (6): 521-526

研究论文

本期目录 | 过刊浏览

新型Zn-22Al-Mg-Re合金涂层性能研究

胡新芳李辛庚樊志彬王晓明王学刚

国网山东省电力公司电力科学研究院济南 250002

Corrosion Performance of a Novel Zn-22Al-Mg-Re Alloy Coating

HU Xinfang, LI Xingeng, FAN Zhibin, WANG Xiaoming, WANG Xuegang

Shandong Electric Power Research Institute, Jinan 250002, China

全文: PDF(4357 KB)

摘要: 使用高速电弧喷涂技术在Q420钢基体上制备了新型Zn-22Al-Mg-Re合金涂层，通过SEM，Cu加速乙酸盐雾实验和电化学工作站等手段研究了其微观形貌、结合强度、耐蚀性能，并与纯Zn和Zn-15Al涂层进行了比较。结果表明，Zn-22Al-Mg-Re合金涂层的结合强度高、腐蚀电位低、腐蚀电流小；腐蚀产物较为稳定，呈细小致密的针状，具有良好的自封闭性；合金涂层的阴极保护能力和耐蚀性能均优于纯Zn和Zn-15Al涂层。

关键词 ： Zn-22Al-Mg-Re合金涂层, 结合强度, 自封闭, 耐蚀性能

Abstract：A novel Zn-22Al-Mg-Re alloy coating was prepared on Q420 steel substrate by arc spraying technology, and the microstructure, adhesive strength and corrosion resistance of the coating were characterized by SEM, copper accelerated acetic acid salt spray test (CASS) and electrochemical measurement in comparison with Zn and Zn-15Al coating. The results show that, the Zn-22Al-Mg-Re coating exhibits lower passivation potential with lower passivation current, because of its ability to form a very stable, adherent, small acicular, well self-sealing protective corrosion products film, the cathodic protection effectiveness and corrosion resistance of Zn-22Al-Mg-Re coating is better than Zn, Zn-15Al coating.

Key words： Zn-22Al-Mg-Re bonding strength self-sealing corrosion resistance

收稿日期: 2013-04-17

ZTFLH:

TG172.3

通讯作者: 胡新芳，E-mail：hxfmcy7117@126.com

作者简介: 胡新芳，男，1971年生，硕士，研究方向为钢结构防护涂层的制备工艺及耐蚀性能

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引用本文:

胡新芳, 李辛庚, 樊志彬, 王晓明, 王学刚. 新型Zn-22Al-Mg-Re合金涂层性能研究[J]. 中国腐蚀与防护学报, 2013, 33(6): 521-526.
HU Xinfang, LI Xingeng, FAN Zhibin, WANG Xiaoming, WANG Xuegang. Corrosion Performance of a Novel Zn-22Al-Mg-Re Alloy Coating. Journal of Chinese Society for Corrosion and protection, 2013, 33(6): 521-526.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2013/V33/I6/521

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