哪些金属材料更耐氯离子(即盐卤)?

2025-04-06 23:35:06
推荐回答(2个)
回答(1):

10CrMoAl,是一种耐海水腐蚀的专用钢材。

一、基本信息 

中文名称:10CrMoAl 属性:钢材 

应用:管路及加工件制作材料 特点:耐海水腐蚀、

百度文库10CrMoAl 

10CrMoAl,是一种耐海水腐蚀的专用钢材。

二、特性与应用 

是一种耐海水腐蚀的专用钢材。10CrMoAl材料,是沿海电厂,沿海油田,沿海天然气及石化厂输送水,油气及含海水介质的最理想的管路及加工件制作材料。还可用于制做阀门的法兰盘。

六、用途 

材料,主要用来制作管道及设备。具有很强的耐腐蚀性,安装也很方便等优点。                                                                                                                                                      七、能耐腐蚀的原因 

1、10CrMoAl材料中的Al(铝),能与空气中的O(氧)化学反应生成Al2O3(三氧化二铝).从而行成保护膜,既防腐又耐腐。

2、10CrMoAl中的Cr(铬),Mo(钼),离子在海水中能自动补充Cl(氯)离子对钢材点腐蚀形成的空隙,开成致密保护层,阻止点腐蚀向纵深发展。进而起到耐腐,使使用寿命加长

八、焊接 

10CrMoAl材料焊接性能较好,配有专用耐腐焊条"海O3",无特殊焊接要求。 10CrMoAL密度:7.85 t/m3 

回答(2):

不锈钢在富含氯离子的环境中,耐腐蚀性不如普通的低碳钢,而10CrMoAl中的Al可以和氧气结合形成氧化膜,而且Cr和Mo可以与Cl结合阻止腐蚀进一步的点蚀,10CrMoAl是专用海洋用钢材,耐蚀性优于不锈钢。钛合金和铜合金的耐海水腐蚀性更优秀一些

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