Advanced Search
WANG Xiangyun, WANG Wenxian, LI Jiemu, WANG Baodong. Experimental investigation on impact toughness in high-temperature of BHW35 steel welded joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (1): 80-84.
Citation: WANG Xiangyun, WANG Wenxian, LI Jiemu, WANG Baodong. Experimental investigation on impact toughness in high-temperature of BHW35 steel welded joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (1): 80-84.

Experimental investigation on impact toughness in high-temperature of BHW35 steel welded joint

More Information
  • Received Date: September 08, 2008
  • Automatic submerged-arc welding and shielded metal arc welding were employed by H10Mn2NiMoA welding wires,E7015-D2 electrode followed by the postweld heat-treatment systems of normalizing,drawing temper and stress relief annealing.Impact tests on welded joint and base metal at 20℃、100℃、200℃ and 350℃ were carried out.Furthermore,SEM fractograph,metallograph and chemical compositions of welding seam were analyzed.The results indicate that the highest hardness of HAZ was:270.5 HV in SAW;235.2 HV in SMAW,the toughness increases greatly compared with conditions at room temperature.Peak value of impact toughness of SAW is at 100℃,SMAW is at 200℃,which is close to that of base metal.The impact toughness in HAZ is better than that in welding seam,and it is better in SMAW than that in SAW.The impact toughness of welded joint is upward 96.33J at room temperature,it is upward 120 J in welded joint at 350℃,and 186 J in base metal,which indicate that the toughness of welded joint and base metal ars in their best at room and high-temperature.SEM fractograph indicates that all impact fractures exhibit ductile dimple,the better toughness,the more obvious tearing feature of ductile dimple.The larger the ductile dimple is,the more obvious non-uniform distribution is.
  • Related Articles

    [1]YUAN Junjun, CHAN Zhishan, CAO Rui, MAO Gaojun, XIAO George. Analysis of impact toughness variation for flat position multi-pass weld joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 100-103. DOI: 10.12073/j.hjxb.20170522
    [2]SHAO Huakai, WU Aiping, ZOU Guisheng. Study on shear strength and fracture behavior of Cu-Sn system low-temperature TLP bonded joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(3): 13-16.
    [3]LIANG Guoli, YANG Shanwu, WU Huibin, LIU Xueli. Impact toughness of simulated CGHAZ with high heat input for adding trace Zr oil tank steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2011, (11): 85-88.
    [4]WANG Xiangyun, WANG Wenxian, HAO Ruihua. Metallograph and high-temperature impact toughness of circumferential joint by SAW of BHW35 steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (12): 89-92,96.
    [5]GUO Chunhuan, CHI Zhidong, FU Xueman, LIU Ruitang. Difference of impact absorbed energy between butt weld metal and deposited metal[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (6): 99-102.
    [6]ZHANG Ling, XUE Songbai, HAN Zongjie, HUANG Xiang. Analysis on high strength Al-Li alloy joints brazed in furnace[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (8): 71-74.
    [7]LU Qing-hua, ZHANG Yu-feng, HUO Li-xing, ZHANG Li. Effect of prestrain on impact toughness and ductile-brittle transition temperature of welded joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2003, (6): 43-46.
    [8]ZHANG De-fen, CHEN Xiao-wen, SONG Tian-min, ZHANG Guo-fu, ZUO Liang. Study of mechanical vibration welding on impact energy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2003, (5): 85-87.
    [9]Xu Yuhuan, Zhang Wenyue, Du Zeyu, Zhao Zhong, Chen Banggu. FRACTOGRAPHIC ANALYSIS OF WELDING COLD CRACK[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1985, (4): 163-170.
    [10]Li Hongqi. FRACTOGRAPHIC ANALYSIS OF ALUMINIUM ALLOY WELD METAL HEAT CRACKING[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1980, (1): 27-33.

Catalog

    Article views (207) PDF downloads (85) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return