不同环境介质中热喷涂Al和Zn的腐蚀行为  

CORROSION PERFORMANCE OF THERMAL SPRAYED ALUMINUM AND ZINC COATINGS IN VARIOUS ENVIRONMENTAL MEDIA

作　　者：符圣旭[1] 靳武刚[1] 王福恒[1] 

机构地区：[1]中国电子科技集团公司第39研究所,西安710065

出　　处：《腐蚀与防护》2007年第1期6-8,12,共4页Corrosion & Protection

摘　　要：采用极化曲线、盐雾试验和自然暴晒等方法,研究了热喷涂Al或Zn层在3%NaCl溶液、西安工业区降水(相当于酸雨)和海南海洋大气条件下的耐腐蚀性能。提出了喷涂层出现不同面积剥落时的腐蚀速率和低碳钢基体允许裸露的平均面积比率,为设备在不同地区和不同使用寿命要求下的涂装工艺设计、使用维护提供依据。Corrosion resistance of thermal sprayed Al or Zn coatings on steel in 3 % sodium chloride solution, snow water （equivalent to acid rain） and marine environment in Hainan island was examined by means of electrochemical measuements, salt spray tests and exposure in atmosphere. The average corrosion rate of coatings with a certain area of bare steel was obtained. These results could be applied to design and maintainance of coating systems in various places and with various demands for life-span.

关 键 词：热喷涂 腐蚀性 腐蚀速率 裸露面积 

分 类 号：TG174.442[金属学及工艺—金属表面处理]