Synergistic effect of erosion and hydrogen on properties of passive film on 2205 duplex stainless steel

作     者：Jiuyi Li Xiankang Zhong Tianguan Wang Tan Shang Junying Hu Zhi Zhang Dezhi Zeng Duo Hou Taihe Shi Jiuyi Li;Xiankang Zhong;Tianguan Wang;Tan Shang;Junying Hu;Zhi Zhang;Dezhi Zeng;Duo Hou;Taihe Shi

作者机构：State Key Laboratory of Oil and Gas Reservoir Geology and ExploitationSouthwest Petroleum UniversityChengdu 610500China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2021年第67卷第8期

页      面：1-10页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 082002[工学-油气田开发工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Science Foundation of China(No.51601159) the“111 Project”(No.D18016) the Application and Fundamental Research of Sichuan Province(No.2017JY0171) the Scientific and Technological Innovation Team for the Safety of Petroleum Tubular Goods in Southwest Petroleum University(No.2018CXTD01) 

主　　题：Corrosion Erosion Hydrogen Stainless steel 

摘      要：Stainless steels have shown great potential in the application of offshore oil and gas ***,the internal surface of stainless steel pipeline may simultaneously suffer erosion from the fluid media inside the pipeline and the damage of hydrogen that is generated from the external activities such as cathodic *** synergistic effect of erosion and hydrogen on the properties of passive film on 2205 duplex stainless steel was studied for the first time in a loop system coupled with a hydrogen-charging *** components,protective performance and semiconductive structure as well as properties of the passive film under different conditions were investigated using in-situ electrochemical techniques,surface characterization and computational fluid dynamics *** results show that the combination of erosion and hydrogen could greatly thin the passive film,furthermore,the Fe^(3+)/Fe^(2+)ratio and O_(2)^(-)/OH^(-)ratio in the passive film also decrease dramatically under such a ***,the hydration degree of the passive film greatly increases,resulting in an increase in active sites and a decrease in the stability of the passive *** could destroy the passive film through the impact of sand particles and accelerate the mass transfer process of electrochemical *** hydrogen can not only enhance the charge transfer process,but also make the passive film highly *** the combination of erosion and hydrogen condition,erosion could enhance the hydrogen damage and simultaneously hydrogen could also enhance ***,the synergistic effect of erosion and hydrogen could dramatically change the passive film component,decrease the protective performance,and increase the susceptibility of pitting corrosion of 2205 stainless steel in Cl-containing environment.