铸造技术2016，Vol.37Issue(7)：1346-1349,4.DOI:10.16410/j.issn1000-8365.2016.07.011
海洋工程机械用Q345E钢的组织与耐腐蚀性能研究
Study on Microstructure and Corrosion Resistance of Steel Q345E for Construction Machinery
周晓燕1
作者信息
- 1. 南通航运职业技术学院船舶与海洋工程系,江苏南通226010
- 折叠
摘要
Abstract
The microstructure and corrosion behavior of Q345E steel for construction machinery were studied.The corrosion behavior of Q345E steel under different immersion periods was studied by means of mass loss method,polarization curve and electrochemical impedance spectroscopy.The results show that the Q345E steel is ferrite + pearlite and a small amount of widmanstatten structure.With the extension of soaking time,the corrosion rate gradually increases,and then with the reaction of corrosion,loss of corrosion products causes corrosion rate decrease.The surface corrosion products of the steel mainly is Fe (OH)2 and Fe (OH)3.The test results of surface corrosion morphology and corrosion rate,polarization curve and impedance spectrum are consistent in.关键词
工程机械用钢/失重法/极化曲线/电化学阻抗谱法Key words
Q345E steel/mass loss method/polarization curve/electrochemical impedance spectroscopy分类
金属材料引用本文复制引用
周晓燕..海洋工程机械用Q345E钢的组织与耐腐蚀性能研究[J].铸造技术,2016,37(7):1346-1349,4.
