摘要
主要研究了铁路货车运输过程中材料腐蚀问题。采用金相显微镜、扫描电镜(SEM)、能谱和X射线衍射等多种技术,分析C_(64)货车车体材料腐蚀特征。同时,利用离子色谱技术研究车体内的残留液体。结果表明:残留液体中存在较高浓度的Cl^(-)和SO_(4)^(2-),这两种离子是引起C_(64)货车车体发生腐蚀的主要因素。在湿润环境下,Cl^(-)和SO_(4)^(2-)会加速车体金属材料的电化学腐蚀。
The corrosion of materials in the process of railway freight transport was studied.The corrosion characteristics of C_(64)truck body materials were analyzed by metallography microscope,scanning electron microscope(SEM),energy spectrum and X-ray diffraction.At the same time,the residual liquid in the vehicle body was studied by ion chromatography.The results show that there are high concentrations of Cl^(-)and SO_(4)^(2-)in the residual liquid,which are the main factors causing the corrosion of C_(64)truck body.In wet environment,Cl^(-)and SO_(4)^(2-)can accelerate the electrochemical corrosion of metal materials in car body.
作者
杜玮
伊钟毓
石振平
相若函
苗晓雨
孙从垒
洪强
DU Wei;YI Zhongyu;SHI Zhenping;XIANG Ruohan;MIAO Xiaoyu;SUN Congei;HONG Qiang(Metals and Chemistry Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Locomotive&Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Shanghai EMU Depot,China Railway Shanghai Group Co.,Ltd.,Shanghai 201812,China;Guangzhou EMU Depot,China Railway Guangzhou Group Co.,Ltd.,Guangzhou Guangdong 511400,China)
出处
《高速铁路新材料》
2023年第5期70-74,共5页
Advanced Materials of High Speed Railway
基金
中国铁道科学研究院集团有限公司科研项目(J2022G008)。
