期刊论文

Zhu, Z.

中文

腐蚀科学与防护技术

1002-6495

2015

27

1

59-63

10.11903/1002.6495.2014.029

国家电网公司总部科技项目（KG12K16004）资助；

本校为第一且通讯机构

采用扫描电镜(SEM)、能谱(EDS)和X 射线衍射(XRD)等技术对红壤中变电站接地网服役长达13 a的镀锌扁钢进行了形貌分析和腐蚀产物分析。结果表明,该镀锌扁钢受到严重腐蚀,腐蚀产物主要由FeOOH,Fe_3O_4和Fe_2O_3等组成,腐蚀产物分层的原因是新生成的腐蚀产物沉积在金属/腐蚀产物层界面或腐蚀产物开裂处,同时S和Cl对内层腐蚀产物具有较大的影响。Tafel测试结果表明,在腐蚀电流峰值附近,SO_4~(2-)与Cl~-的百分比为1∶2时,两者对镀锌Q235碳钢在该红壤中的腐蚀性影响具有等效作用。通过室内加速实验模拟镀锌Q235碳钢在该红壤中的腐蚀发现,镀锌Q235碳钢的腐蚀速率呈现先增大后减小的规律,该加速实验在未...

Macroscopic analysis and corrosion product analysis of galvanized flat steel which had been in service for 13 a in substation grounding grid were made by scanning electron microscopy (SEM), energy spectrum (EDS) and X-ray diffraction (XRD). The result shows that galvanized flat steel suffered serious corrosion and corrosion products are mainly composed of FeOOH, Fe3O4, Fe2O3 and etc The cause of the corrosion product layer is the new production of corrosion products deposition on the metal/corrosion product layer interface or the cracking. At t...