20钢及其搪瓷涂层在400℃下的氧化和NaCl腐蚀行为研究  

Air Oxidation and NaCl Corrosion Behavior of 20 Steel Without and with Enamel Coating at 400°C

作　　者：袁磊[1] 谢新[2] 陈明辉[1] 李烽杰 王福会[1] YUAN Lei;XIE Xin;CHEN Minghui;LI Fengjie;WANG Fuhui(Shenyang National Key Laboratory for Materials Science,Northeastern University,Shenyang 110819,China;Shipbuilding Technology Research Institute(The 11th Institute of China State Shipbuilding Corporation),Shanghai 200032,China)

机构地区：[1]东北大学、沈阳材料科学国家研究中心联合研究分部,沈阳110819 [2]上海船舶工艺研究所(中国船舶集团有限公司第十一研究所),上海200032

出　　处：《中国腐蚀与防护学报》2023年第4期890-895,共6页Journal of Chinese Society For Corrosion and Protection

摘　　要：设计了一种用于20钢表面的搪瓷涂层,研究了基体与搪瓷涂层在400℃下恒温氧化1000 h和表面涂覆氯盐200 h的腐蚀行为。结果表明,搪瓷涂层呈非晶态,致密平整,与基体结合良好。在长时间的实验中未出现开裂或剥落行为,具有很高的热稳定性以及耐蚀性,为20钢基体提供了有效的防护。A novel enamel coating was prepared on 20 steel,then the oxidation and NaCl deposit induced corrosion of the steel without and with enamel coating were studied in air at 400℃for 1000 and 200 h respectively.It is revealed that the prepared enamel coating is compact,amorphous,and can be well combined with the substrate.There are no cracks and spallation of enamel coatings was observed after corrosion tests.The enamel coating has high thermal stability and corrosion resistance,which provides effective protection for the 20 steel substrate.

关 键 词：搪瓷涂层 20钢 恒温氧化 氯盐腐蚀 

分 类 号：TG172[金属学及工艺—金属表面处理]