2205与2507型双相不锈钢在高氯环境下服役性能比较  

Comparison of Service Performance of Type 2205 and Type 2507 Duplex Stainless Steel in High Chlorine Environment

作　　者：周子钧 刘爽 丁国清[2] 董彩常[2] 曲政[2] ZHOU Zi-jun;LIU Shuang;DING Guo-qing;DONG Cai-chang;QU Zheng(Qingdao NCS Testing&Corrosion Protection Technology Co.,Ltd.,Qingdao 266071;Qingdao Marine Corrosion Research Institute Co.,Ltd.,Cenrtal Research of Iron and Steel,Qingdao 266071)

机构地区：[1]青岛钢研纳克检测防护技术有限公司,青岛266071 [2]钢铁研究总院青岛海洋腐蚀研究所,青岛266071

出　　处：《环境技术》2023年第12期52-59,63,共9页Environmental Technology

摘　　要：双相不锈钢常应用于冷却塔冷却系统中,长期处于高温高湿持续淋水的高盐雾潮湿环境中,环境腐蚀性较强,冷却设备在设计和选材过程中必须考虑耐腐蚀性的要求,金属件在海水冷却塔内腐蚀环境较复杂,本研究开展一系列耐腐蚀试验研究,比较2205与2507型双相不锈钢服役性能差异,对两种双相不锈钢材料服役寿命进行预测[1-6]。研究表明2507型不锈钢在局部腐蚀性能方面优于2205型不锈钢;在均匀腐蚀性能方面,二者无明显差异。2507型不锈钢可以满足服役寿命要求。Duplex stainless steel is often used in cooling tower cooling system,long-term in high temperature and high humidity continuous water in high salt spray humid environment,environmental corrosion is strong,cooling equipment in the design and materi al selection process must consider the requirements of corrosion resistance,metal parts in seawater cooling tower corrosion environment is more complex,this study carried out a series of corrosion resistance test research.The service life of duplex stainless steels 2205 and 2507 is predicted by comparing the service performance difference[1-6].The results show that the local corrosion performance of type 2507 stainless steel is better than that of type 2205 stainless steel.In the aspect of uniform corrosion performance,there is no obvious difference between them.Type 2507 stainless steel can meet the service life requirements.

关 键 词：2205 2507 腐蚀 服役寿命 

分 类 号：O69[理学—化学]