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《中国化学工程学报(英文版)》 2008-02
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Effect of Strain and Chloride Concentration on Pitting Susceptibility for Type 304 Austenitic Stainless Steel

LüGuocheng 1 ,CHENG Haidong1 ,XU Chunchun 1, and HE Zonghu 2 1College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China 2 Department of Chemical,Biomedical,and Materials Engineering,Stevens Institute of Technology,Hoboken,New Jersey 07030,USA  
The effects of strain and chloride concentration on pitting susceptibility for type 304 stainless steel were studied in situ using the electrochemical technology under constant strain.The impact factor fεwas brought forward to value the effect of strain on pitting.The pitting behaviors of type 304 stainless steel in various chloride concen- trations under the strain levels 0%,10%,and 30%were investigated.Potentiostatic polarization technology was used to study how the chloride concentration affected corrosion current density.The results indicated that fεin- creased substantially and pitting potential varied remarkably when chloride concentration was over 90 mg·L -1 .Un- der the three levels of strain mentioned above,when chloride concentration was below 463 mg·L -1 ,121 mg·L -1 ,and 98 mg·L -1 ,respectively,the pitting potential shifted towards positivity and,the passive film became more stable. When the strain was below 10%,the pitting susceptibility of type 304 stainless steel varied greatly as strain in- creased,whereas the susceptibility only changed a little when the strain was over 10%.
【Fund】: China Petroleum&Chemical Corporation(306021)
【CateGory Index】: TG174
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【References】
Chinese Journal Full-text Database 1 Hits
1 HUANG Feng~(1,2),QU Yanmiao~1,DENG Zhaojun~(1,3),LIU Jing~1,ZHENG Chaochao~1,LI Xiaogang~2 (1.College of Materials Science and Metallurgical Engineering,Wuhan University of Science and Technology, Wuhan 430081; 2.Corrosion and Protection Center,University of Science and Technology Beijing,Beijing 100083; 3.Wu Gang Corp.Iron and Steel Research Institute,Wuhan 430080);PITTING ELECTROCHEMICAL BEHAVIORS OF DIFFERENT MICROSTRUCTURE X80 STEEL IN HIGH pH SOIL SIMULATIVE SOLUTION[J];Journal of Chinese Society for Corrosion and Protection;2010-01
【Co-references】
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1 LIU Xing,ZHOU Jian-jiang,LI Guang-fu,YANG Wu(Shanghai Research Institute of Materials,Shanghai 200437;China);Influence of Dissolved Oxygen on Electrochemical Behaviour and SCC Susceptibility of Pipeline Steel X70 in High pH Solution[J];Corrosion & Protection;2008-06
2 HUANG Zhi-qian;The Application and Development Prospect of Grade X80 Pipeline Steel in High Pressure Large Volume Gas Transmission Pipeline[J];Welded Pipe and Tube;2005-02
3 LI,Dang-Guo,a,b FENG,Yao-Rongb BAI,Zhen-Quanb ZHU,Jie-Wua ZHENG,Mao-Shenga(a School of Materials Science and Engineering,Xi'an Jiaotong University,Xi'an 710049)(b Tubular Goods Research Center of China National Petroleum Corporation,Xi'an 710065);Influences of Temperature,pH Value and Chloride Ion on the Diffusivity of Point Defect in the Passive Film on X80 Pipeline Steel[J];Acta Chimica Sinica;2008-10
4 YI Hai-long,XUE Peng,CUI Rong-xin,DU Lin-xiu,WANG Guo-dong,LIU Xiang-hua(The State Key Laboratory of Rolling Technology & Automation,Northeastern University,Shenyang 110004,china);Research on Continuous Cooling Transformation of X80 Pipeline Steel[J];Steel Rolling;2008-02
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1 QU Yanmiao HUANG Feng~(**) LIU Jing YUAN Wei (School of Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology,Wuhan 430081);Influence of Microstructure on Hydrogen Induced Cracks Susceptibility and Hydrogen Trapping Efficiency for X80 Pipeline Steel[J];Chinese Journal of Materials Research;2010-05
2 WANG Xia1,ZHANG Renyong2,YANG Daqing2,3(1.Department of Materials Science and Engineering,Southwest Petroleum University,Chengdu 610500,China;2.Graduate School,Southwest Petroleum University,Chengdu 610500,China;3.Zibei Oil Production Plant,Yanchang Oilfield Limited Company,Yanchang 717300,China);Effects of Heat Treatment on CO_2 Corrosion Behavior of X80 Pipeline Steel[J];Hot Working Technology;2011-06
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