市政给排水管道的耐蚀设计与优化  

Design and Optimization of Corrosion Resistance on Municipal Water Supply and Drainage Pipeline

作　　者：翁窈瑶[1] 

机构地区：[1]浙江工业职业技术学院,浙江绍兴312000

出　　处：《热加工工艺》2015年第6期216-218,222,共4页Hot Working Technology

摘　　要：借助金相显微镜、扫描电镜及能谱分析、X射线衍射仪等方法研究了市政排水管道用钢在固溶态、固溶+敏化态、固溶+稳定化+敏化态的微观组织与抗晶间腐蚀性能。研究结果表明,稳定化处理有助于提高管道的抗晶间腐蚀能力,且随稳定化处理温度的升高,钢管的抗晶间腐蚀能力逐渐增强;对固溶态钢管进行1100℃保温2 h的稳定化处理可以显著改善钢管的抗晶间腐蚀能力。The microstructure and intergranular corrosion resistance of municipal drainage pipeline after solid solution,solid solution＋sensitized,solid solution＋stabilization＋sensitized state were studied by OM,SEM＋EDS and XRD.The results show that,stabilizing treatment helps to improve the intergranular corrosion resistance of pipeline,and with the increase of stabilization temperature,the intergranular corrosion resistance of steel increases gradually.The intergranular corrosion resistance ability of solid steel can significantly improve with stabilization treatment at 1100 ℃ for 2 h.

关 键 词：钢管 固溶 稳定化 晶间腐蚀 

分 类 号：TG156[金属学及工艺—热处理]