Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Physical Testing and Chemical Analysis(Part A:Physical Testing)》 2011-01
Add to Favorite Get Latest Update

Formation Cause Analysis on Cold Bending Cracks in Q235B Steel Plate

ZHONG Zhen-qian,ZHU Yan-yong,YANG Chun,DONG Yi,HE Xi-kou (Central Iron and Steel Research Institute,Beijing 100081,China)  
A Q235B steel plate with thickness of 8 mm was bent more than 90° during room temperature plastic deformation process,and cracks initiated in the inboard and propagated to the outboard of the steel plate at the bending corner when bent back.In order to find the reason for cracks occurring,fracture surface observation,mechanical properties test,metallographic examination,micro-hardness test and EBSD analysis had been done.The results indicated that the over length inclusions in the steel plate,bad ductility reflected by the impacting value,the working hardening and crystal change induced by the normal bending,worsened the mechanical properties of the bending corner of the steel plate and caused it to crack with the formation of cleavage during the contrary flexure.
【CateGory Index】: TG142.15
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 WANG Lijie1,2,HAO Xin1,LIU Sufen2,LIU Ziyu2(1.College of Materials Science and Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;2.Ningbo Branch of China Academy of Ordnance Science,Baotou 014034,China);Analysis on the reason of the high temperature superheater tube cracking[J];Ordnance Material Science and Engineering;2010-03
2 QU Kepeng1,KONG Junli1,WEI Jianfeng2,ZHAO Yongqing3 (1.Xi′an Modern Chemistry Institute,Xi′an 710065,China;2.State Key Laboratory for Mechanical Behavior of Materials, Xi′an Jiaotong University,Xi′an 710049,China;3.Northwest Institute for Nonferrous Metal Research,Xi′an 710016,China);Fracture behavior of a new titanium alloy by semi-solid forging[J];Ordnance Material Science and Engineering;2011-01
3 SHI Hong-qi,DING Yi,MA Li-qun(School of Material Science and Engineering,Nanjing University of Technology,Nanjing 210009,China);Failure Analysis of Cracking of Expansion Joint of Incoloy 800 Bellows[J];Materials Protection;2009-12
4 XI Junjie1,WANG Liqiu2(1 School of Mechatronics Engineering,Zhengzhou Institute of Aeronautical Industry Management,Zhengzhou 450015;2 China National Building Material Equipment Co.Ltd.,Beijing 100037);Research on Mechanical Properties of SiC/MoSi_2 Composites Prepared by Technology of In-situ Reaction Hot-pressing Sintering[J];Materials Review;2009-16
5 WANG Ying-ling1,LI Hong1,LI Zhuo-xin1,2,FENG Ji-cai2(1 School of Materials Science and Engineering,Beijing University of Technology,Beijing 100124,China;2 State Key Lab of Advanced Welding Production Technology,Harbin Institute of Technology,Harbin 150001,China);Research on Transient Liquid Phase Diffusion Bonding Process of TiNi Shape Memory Alloy to Stainless Steel[J];Journal of Materials Engineering;2008-09
6 SHI Zhen-xue,LI Jia-rong,LIU Shi-zhong,ZHAO Jin-qian (National Key Laboratory of Advanced High Temperature Structural Materials,Beijing Institute of Aeronautical Materials,Beijing 100095,China);Transverse Stress Rupture Properties of DD6 Single Crystal Superalloy with Twist Low Angle Boundaries[J];Journal of Materials Engineering;2009-S1
7 TANG Di1,DAI Hui1,2,SUN Ji-quan1(1 Metallurgy Engineering Research Institute,University of Science and Technology Beijing,Beijing 100083,China;2 Tangshan Iron & Steel Designing Institute Co.,Ltd.,Hebei Iron & Steel Group,Tangshan 063000,Hebei,China);Research of Asymmetrical Cold Rolling and Recrystallization Annealing Experiment of Flange Plate Steel[J];Journal of Materials Engineering;2011-05
8 LIAO Qiang,ZHU Li-qun,LIU Hui-cong,LI Wei-ping (Key Laboratory of Aerospace Materials and Performance of Ministry of Education,School of Materials Science and Engineering,Beihang University,Beijing 100191,China);Effects of ultrasonic on microstructure and mechanical properties of electroforming copper layer[J];Materials Science and Technology;2010-02
9 ZHOU Jian,GUO Bin,SHAN De-bin(School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China);Research of size effects on tensile strength and elongation of copper foil[J];Materials Science and Technology;2010-04
10 SHI Zhan-fei~1, LI Yu-long~1, SUO Tao~1, LIU Yuan-yong~1, ZENG Ning~2, LIU Xiao-dong~2(1.School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China;2.Cheng Du Aircraft Design & Research Institute, Cheng Du 610041, China);Influence of Loading Frequency on the High Cycle Fatigue Properties of Metallic and Alloy[J];Journal of Materials Science and Engineering;2009-03
China Proceedings of conference Full-text Database 6 Hits
1 SHI Zhi-gang MA Hong TANG Li-ying LI Yi-min (Thermal Power Research Institute,Xi'an 710032,China);Fracture Analysis of Water-cooling Wall Tube Corrosion Fatigue for Utility Boilers[A];[C];2007
2 MA Yu-xi (Research and Development Center of Wuhan Iron and Steel(Group)Corp.,Wuhan 430080,China);Research of the Relationship between the Ductile to Brittle Transition and Stacking Fault Energy of High Nitrogen Containing Austenitic Stainless Steel[A];[C];2009
3 LI Xiao-ling,JIANG Jun-ling,ZHAO Qun (Shenzhen Center for Analysis & Measurement of Material Surface,Shenzhen 518008,China);Fracture Analysis of the Screw[A];[C];2009
4 LIU Su-fen,ZHAO Yu-dong,WANG Li-jie,LIU Zi-yu (No.52 Institute of China Ordnance Industry,Baotou 014034,China);Fracture Analysis of Non-magnetic Steel Bolt[A];[C];2009
5 TAN Ying,CAO Biao,CHEN Ming,MO Ming-zhen,PENG Xiao-gang (Guangdong Inspection and Quarantine Technology Center,Guangzhou 510623,China);Fracture Reason Analysis of Manual Hoist in Setting Process of Steam Turbine[A];[C];2009
6 HU Xin,WANG Zhen-qiang,HUANG Ke-zhong (Si Chuan Province Shi Fang City Future Aerospace Industry Co.,Ltd);The influence of temperature on diffusion Bonding of AZ31B Magnesium Alloy joints[A];[C];2010
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved