Wear Resistances of CO_2 Corrosion Product Films in the Presence of Sand Particles

作     者：李金灵 朱世东 LIU Luzhen QU Chengtun YAN Yongli YANG Bo 

作者机构：College of Chemistry and Chemical Engineering Xi'an Shiyou University Research Institute of Shaanxi Yanchang Petroleum (Group) Co. Ltd. School of Chemical Engineering Northwest University 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2015年第30卷第5期

页      面：968-973页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 

基　　金：Funded by China Postdoctoral Science Foundation(No.2014M552477) Natural Science Basic Research Plan in Shaanxi Province of China(Nos.2014JQ2056 and 2014JQ6219) Key Laboratory Scientific Research Program of Shaanxi Provincial Education Department(No.14JS086) 

主　　题：carbon steel corrosion product films wear scanning electron microscope X-ray diffraction 

摘      要：Wear resistances of CO2 corrosion product films formed on P110 carbon steel at different CO2 partial pressures were investigated in water sand two-phase flow by weight loss method, and the microstructures and compositions of corrosion product films were analyzed by scanning electron microscope(SEM) and X-ray diffraction(XRD), respectively. The results showed that the wear rate of CO2 corrosion product films increased until a maximum and then decreased with the increasing of the film-forming pressure, and the maximum occurred at 2 MPa. However, the maximal corrosion rate and the loose and porous CO2 corrosion product films were obtained at 4 MPa. And the wear rate decreased and then went to be flat with increasing test time. Furthermore, the microstructures and compositions of corrosion product films and the impact and wear of sand particles played an important role on wear resistances. In addition, the wear rate and corrosion rate were fitted by cubic polynomial, respectively, which were well in accordance with the measured results.