金属喷焊层代替有机防腐涂层耐蚀性的研究

• 作 者: 董立先 王勇 吴开源 赵卫民
• 机 构: 石油大学(华东)机械系!山东东营257062,石油大学(华东)机械系!山东东营257062,石油大学(华东)机械系!山东东营257062,石油大学(华东)机械系!山东东营257062
• 出 处: 石油矿场机械
• 发表日期: 2001年S1期
• 关键词: 防腐涂层 喷焊 耐蚀性 耐腐蚀性 合金成分 静态腐蚀 动态试验 腐蚀介质 腐蚀速度 铬含量

研究了腐蚀介质状态和合金成分对金属合金喷焊层耐蚀性的影响规律。结果表明 ,喷焊层中铁含量的增加对耐蚀性有不利的影响。铬含量对材料的抗点蚀性影响较大 ;在喷焊材料中加入一定量的钼、铜元素 ,有利于提高材料的抗点蚀性。在动态介质中 ,各种材料的腐蚀速度提高 5～ 15倍。静态与动态试验所得出的材料耐蚀性次序不同 ,静态试验主要反映材料的热力学稳定性 ,而动态试验主要反映材料的动力学特性

The influence of corrosion medium condition and alloy composition on corrosion resistance of metal alloy spray coating was studied. The results show that the increased iron content in the spray coating adversely affects the corrosion resistance. The content of chromium has a great influence on the pitting corrosion resistance of the material. Adding a certain amount of molybdenum and copper to the welding material will help to improve the pitting corrosion resistance of the material. In dynamic media, the corrosion rate of various materials increased by 5 to 15 times. The static and dynamic tests result in different order of corrosion resistance of material, the static test mainly reflects the thermodynamic stability of the material, and the dynamic test mainly reflects the dynamic characteristics of the material