Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of University of Science and Technology Beijing》 2008-01
Add to Favorite Get Latest Update

Galvanic corrosion of X70 dissimilar weld joints

LIU Chenghu,LIU Wei,ZHAO Yaobin,LU Minxu School of Materials Science and Technology,University of Science and Technology Beijing,Beijing 100083,China  
The microstructures of X70 dissimilar weld joints were studied by optical microscope and SEM.Galvanic corrosion at different area ratios was investigated in simulated soil solution.The results indicated that the fusion zone was so narrow that no martensite-like structure was found.Fine dendrites were obtained in the weld zone,in which Nb and Mo seriously segregated in interdendritic.The corrosion resistance of the weld zone was excellent because of its passive film.There were coarse bainitic ferrite and nonuniformly distributed strip M-A constituent in the coarse-grained heat-affected zone(CGHAZ),and fine bainite existed in X70 base material.Their corrosion behaviors were not obviously different,but as the anode polarized potential exceeded to 150 mV the polarizability of CGHAZ was relatively high.The cathodic reaction rate was dependent on oxygen diffusion when the weld zone was coupled with X70 pipeline steel.The corrosion current density of X70 pipeline steel increased rapidly with increasing area ratio.The corrosion characteristic was similar to "Catchment Principle".Because of high cathodic potential the weld zone did not suffer corrosion.
【CateGory Index】: TG407;TG172
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Citations】
Chinese Journal Full-text Database 5 Hits
1 YU Shaofei QIAN Bainian (Institute of Metal Research, Chinese Acaderny of Sciences, Shenyang 110016);Local brittleness of X70 pipeline steel[J];Chinese Journal of Materials Research;2004-04
2 LUO Mei-qing(Zhuzhou Electric Locomotive Works, Zhuzhou 412001, China);Study on anti-erosion performance of welding joints of1Cr18Ni9Ti or 1Cr18Ni9Ti with16MnDR[J];Electric Locomotives & Mass Transit Vehicles;2004-04
3 ZHANG Yu-zhi,TAN Yong-dong,LU Xia ng-yang (Pipeline Welding Training Cent er of Chi na National Petroleum Corporation,Langfa ng 065000,China);Study on Welding Technology of X70 Steel Used for Natural Gas Pipeline[J];Pipeline Technique and Equipment;2005-02
4 Gao Huilin,Dong Yuhua,Zhou Haobin;The Development Tendency and Prospects of Pipeline Steels[J];WELDED PIPE AND TUBE;1999-03
5 YU Shaofei, QIAN Bainian, GUO Xuming Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110016;EFFECT OF ACCELERATING COOLING ON MICROSTRUCTURE AND TOUGHNESS OF HAZ OF X70 PIPELINE STEEL[J];Acta Metallrugica Sinica;2005-04
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Huang Guojian Xu Feng Guo Huijiu(Angang Technology Center) Ren Wendong Lu Qiang Guan Ju(Angang New Iron and Steel Co.);Study on X60 Pipeline Steel Hot Rolled Coiled Sheet and Its Application in Angang[J];Angang Technology;2004-05
2 MENG Lin,HE YedongBeijing Key Laboratory for Corrosion,Erosion and Surface Technology,University of Science and Technology Beijing,Beijing 100083,China;Apparent and true corrosion polarization diagrams of alloys under activation polarization control[J];Journal of University of Science and Technology Beijing;2008-06
3 NIE Xiang-hui,DU Cui-wei,LI Xiao-gang School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;Influence of temperature on the corrosion behavior and mechanism of Q235 steel in Dagang soil[J];Journal of University of Science and Technology Beijing;2009-01
4 LIU Yan 1, 2, ZHU Zi-xin 1, MA Jie3, LI Zhuo-xin 2, XU Bin-shi 1 (1. National Key Laboratory for Remanufacturing, Beijing 100072 China; 2. The college of Materials Science and Engineering, Beijng University of Technology, Beijing 100022 China; 3. Department of Chemistry, Capital Normal University, Beijing 100037 China);Study on Self-sealing Mechanism of Zn and Zn-Al Coating Based on Electrochemical Impedance Spectroscopy[J];China Surface Engineering;2005-02
5 CHEN Xi-ting,ZHOU Ya,JIANG Li-ming,XU Hai-dong(School of Materials Science & Engineering,Nanchang Hangkong University,Nanchang 330063,China);Study on Inhibitor for Reducing Metal Corrosion in Formic Acid Solution[J];Surface Technology;2008-05
6 RUAN Yi-ping,TANG Bing,HUANG Shu-huang(Faculty of Environment Science and Engineering,Guangdong University of Technology,Guangzhou 510006,China);Progress in Research on Adsorption Properties of Organic Substances on Metal Surface[J];Surface Technology;2009-02
7 LI Hui-qin~1,XING Shu-qing~1,JIAN-Fang~2,MA Yong-lin~1,BAO Xi-rong~1(1.Material and Metallurgy School,UST Inner Mongolia,Baotou 014010,China;2.Seamless Steel Tube Plant,Baotou Iron and Steel(Group)Co.,Baotou 014010,China);Research on continuous cooling transformation of Nb microalloy steel on Gleeble 1500D[J];Journal of Baotou University of Iron and Steel Technology;2005-03
8 SONG Xue-feng1,HUANG Lin2,ZHOU Yong-zhang1,WEI Wu-ji1,ZHU Cheng-fei1(1.College of Materials Science and Engineering,Nanjing University of Technology,Nanjing 210009,China;2.Department of Chemical Engineering,Xiangfan College,Xiangfan 441000,China);Corrosion-Inhibition of Drill Pipe Made of G105 Steel in Saltwater Drilling Fluid by Molybdate-Based Combined Inhibitor[J];Materials Protection;2006-02
9 CHANG Shou-wen, ZHANG Li-hua (Inslitule of Metal, Chinese Academy of Sciences, Shenyang 110016,China).;Progress in Research of Criterion for Evalualion of Cnthodic Pnttection Effect of Underground Metallic Frameworks[J];Materials Protection;2007-01
10 WANG Ya-ping1,GAO Peng2,WANG Cang3,HU Shao-shan4,LI Zhi1(1.Wuhan Research Institute of Materials Protection,Wuhan 430030,China;2.Shenyang Gas and Heat Design Institute,Shenyang 110000,China;3.Henan Woodpecker Underground Pipeline Survey Co.Ltd.,Xinxiang 453003,China;4.Tianjin Genlius Technology Engineering Co.Ltd.,Tianjin 300204,China);Method for Direct Assessment of External Corrosion of In-Service Underground Gas Pipelines[J];Materials Protection;2007-06
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 Pan Chunxu;Liao Hongwei; Shen DthuaLaboratory of Electron Microscopy,WuhanTransportation University, Wuhan 430063;STUDY OF HYDROGEN-INDUCED DISBONDING MECHANISM IN DISSIMILAR STEEL WELDS[J];ORDNANCE MATERIAL SCIENCE AND ENGINEERING;1996-03
2 ZHOU Hai hui, XU Yan, LUO Shen lian, ZENG Ling san (Chemistry & Chemical College, Hunan University, Changsha 410082,China);Present Situation and Development of Anticorrosion Coatings in Our Country[J];Surface Technology;2002-01
3 YU Xi-nian(Dalian Jiaotong University, Dalian 116028, China);Short-wave Radiation and Surface Painting[J];Surface Technology;2005-02
4 HUANG An.guo,WANG Yong-sheng,LI Zhi-yuan,et al(College of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China).;Corrosion Behaviors of Welding Joint with Acicular Ferrite[J];Materials Protection;2004-03
5 GUO Zengchang, WANG Yunfang, WANG Rumin, XIONG Yanli(Department of Chemistry Engineering, Northwestern Polytechnical University, Xi’an 710072, China)Cailiao Baohu 2005, 38(4),25~27(Ch).;Environmentally Friendly Surface Treatment Process for Corrosion Protection of Aluminum alloys[J];Materials Protection;2005-04
6 HUANG Xiao-xia, LI Rong-qiang, ZHANG Yan-xia (No.59 Institute, China Ordnance Industry, Chongqing 400039, China).;Corrosion Control and Prevention Technique for Fasteners Made of Titanium Alloys[J];Materials Protection;2008-06
7 LEi A-Li~*,GUO Qiao-qin,FENG La-Jun(School of Materials Science and Engineering,Xi'an University of Technology,Xi'an 710048,Shanxi,China);Corrosion Behavior of the Welding Seam of the Q235 Steel Jointed by J420 Electrode in Ammonium Sulfite Solution[J];Electrochemistry;2006-02
8 GUO Jian wei, LIANG Cheng hao ( School of Chem. Eng., Dalian Univ. of Technol., Dalian 116012, China );Corrosive behavior of carbon steel in high temperature and high concentration lithium bromide solution[J];JOURNAL OF DALIAN UNIVERSITY OF TECHNOLOGY;2000-05
9 LIANGChenghao,GUOJianwei( School of Chem. Eng., Dalian Univ. of Technol., Dalian 116012, China ) ;Electrochemical behaviors of stainless steel in high temperature and high concentration lithium bromide solution[J];Journal of Dalian University of Technology;2003-02
10 YU Xi-nian(School of Mechanical Engineering,Dalian Jiaotong University,Dalian 116028,China);Analysis of Affecting Factor on the Cohesiveness of Metal Anticorrosion Coating[J];Journal of Dalian Railway Institute;2006-02
【Secondary Citations】
Chinese Journal Full-text Database 5 Hits
1 WANG Yong;HAN Tao (University of Petroleum, Shandong 257062, China)LIU Min (Tianjin University, Tianjin 300072, China);Local Brittleness of Weld Heat-Affected Zone of X70 Pipeline Steel[J];JOURNAL OF MATERIALS ENGINEERING;1999-10
2 QIAN Bainian; LI Jingli; SI Zhongyao(Institute of Metal Research, Chinese Academy of Sciences)YI Yaoyong(Huanan University ofScience and Technology);EFFECT OF C, Al AND Ti ON THE TOUGHNESS OF HAZ OF HSLA STEEL[J];CHINESE JOURNAL OF MATERIAL RESEARCH;1995-02
3 Xi'an Jiaotong University Wang Nengli, Pan Xide, Xue Jin The 4th Research Institute of China Aerospace Group CorporationGuo Lin, Pan Jianxing;WELDING PROCEDURE AND RESISTANT TO CORROSION PROPERTIES FOR WELDED JOINT OF 20/0Cr18Ni9 CLAD PIPE[J];Welding & Joining;2003-05
4 SHANG Chengjia, WANG Xuemin, YANG Shanwu, HE Xinlai, WU Huibin Department of Materials Physics, University of Science and Technology Beijing, Beijing 100083;MICROSTRUCTURE REFINEMENT OF HIGH STRENGTH LOW CARBON BAINITIC STEEL[J];Acta Metallrugica Sinica;2003-10
5 YANG Fubao , BAI Bingzhe, LIU Dongyu CHANG Kaidi, WEI Dongyuan, FANG Hongsheng Department of Materials Science and Engineering, Tsinghua University, Beijing 100084 Department of Power Engineering, North China Electric Power University, Beijing 102206 Shougang Research Institute of Technology, Bejing 100041;MICROSTRUCTURE AND PROPERTIES OF A CARBIDE-FREE BAINITE/MARTENSITE ULTRA-HIGH STRENGTH STEEL[J];Acta Metallrugica Sinica;2004-03
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved