Zn-Al伪合金涂层的耐蚀性能研究  

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

作　　者：黄钰[1] 程西云[2] 彭美华[2] 周彪[2] 

机构地区：[1]汕头职业技术学院,广东汕头515041 [2]汕头大学工学院.广东汕头515063

出　　处：《表面技术》2014年第1期35-39,共5页Surface Technology

基　　金：广东省高等学校人才培养项目(20111408184002)~~

摘　　要：目的提高电弧喷涂锌铝合金涂层中Al的含量。方法用纯铝丝和Zn80Al20合金丝在Q235钢表面制备Zn-Al伪合金涂层,通过中性盐雾试验和电化学试验,与纯铝涂层和Zn-Al合金涂层进行对比,分析比较三种涂层在氯离子存在环境中的腐蚀行为。结果 Zn-Al伪合金涂层表现出了较高的活化能力和较低的腐蚀速度。结论 Zn-Al伪合金涂层的耐蚀性能优于纯铝涂层和Zn-Al合金涂层。Objective To enhance the A1 content in the Zn-A1 pseudo-alloy coating. Methods Zn-AI pseudo-alloy coating was prepared using aluminum and ZnSOA120 alloy by are spraying on Q235 steel substrates. Salt spray test and electrochemica/experi- ments were employed to compare the corrosion resistance behavior of the Zn-A1 pseudo-alloy coating with the pure A1 coating and Zn-A1 alloy coating in chloride environments. Results The Zn-A1 pseudo-alloy coating showed high activation capability and low corrosion rate. Conclusion The Zn-A1 pseudo-alloy coating had higher corrosion resistance than the pure A1 coating and Zn-A1 alloy coating.

关 键 词：电弧喷涂 耐蚀性 伪合金 电化学腐蚀 中性盐雾试验 

分 类 号：TG174.442[金属学及工艺—金属表面处理]