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Cr-Ni-Cu系Ⅰa钢级低合金耐候钢管耐蚀性能研究

Ya'nan WANG,Xiaofeng ZHOU,Lingxi BIAN,Youyun ZHAO,Zhichao DOU

Steel Pipe（2018）

Cited 0|Views7
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Abstract
对性能相近的Cr-Ni-Cu系Ⅰa钢、Q345B和X52Q钢进行盐雾试验,通过观察腐蚀面变化情况,对比试验前后称重情况,分析耐候钢Ⅰa钢级的抗腐蚀性能.试验结果表明:各钢种在48,120,168 h腐蚀情况无明显差别,但除锈后Ⅰa锈层较Q345B和X52Q略致密;短时间内抗盐雾腐蚀性X52Q＞Ⅰ a＞Q345B,与通过耐大气腐蚀指数不同,这可能是受试验时间、晶粒尺寸、合金元素和显微组织的影响.
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