电焊机2017，Vol.47Issue(3)：37-42,6.DOI:10.7512/j.issn.1001-2303.2017.03.07
X90管线钢焊接接头耐腐蚀性能研究
Study on corrosion resistance of welded joint of X90 pipeline steel
李阳 1杨眉 2黄少波 1吴康1
作者信息
- 1. 西南石油大学材料科学与工程学院,四川成都610500
- 2. 四川石油天然气建设工程有限责任公司,四川成都610213
- 折叠
摘要
Abstract
Use metal immersion corrosion test,electrochemical corrosion test to study the influence of different concentration or pH of HCl,NaOH,NaCl solution on corrosion resistance of X90 pipeline welded joints (SMAW,GMAW,SAW).The results show that,the corrosion rate of three kinds of welded joints increases with increasing concentration,alkaline environment in which the welded joints ofgood corrosion resistance,acid and salt corrosion is poor,at lower concentrations or pH close under corrosive light degree level,SMAW welding joint at pH=1 HCl solution and 5％ NaCl solution corrosion could reach severe level.Electrochemical corrosion tests show that SMAW sample corrosion current highest,lowest impedance,three welded joints corrosion are severe level,so suggest protective measures in strong electrolyte solutions.关键词
X90管线钢/焊接接头/金属浸泡腐蚀/电化学腐蚀Key words
X90 pipeline steel/welded joint/metal immersion corrosion/electrochemical corrosion分类
矿业与冶金引用本文复制引用
李阳,杨眉,黄少波,吴康..X90管线钢焊接接头耐腐蚀性能研究[J].电焊机,2017,47(3):37-42,6.
