高级检索

超窄间隙焊接Q235/1Cr18Ni9Ti异种钢接头组织及力学性能

郑韶先, 李晔楠, 史伟, 赵锡龙

郑韶先, 李晔楠, 史伟, 赵锡龙. 超窄间隙焊接Q235/1Cr18Ni9Ti异种钢接头组织及力学性能[J]. 焊接学报, 2019, 40(8): 38-43. DOI: 10.12073/j.hjxb.2019400206
引用本文: 郑韶先, 李晔楠, 史伟, 赵锡龙. 超窄间隙焊接Q235/1Cr18Ni9Ti异种钢接头组织及力学性能[J]. 焊接学报, 2019, 40(8): 38-43. DOI: 10.12073/j.hjxb.2019400206
shu
ZHENG Shaoxian, LI Yenan, SHI Wei, ZHAO Xilong. Microstructures and mechanical properties of welding joint of Q235/1Cr18Ni9Ti dissimilar steel with ultra-narrow-gap welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(8): 38-43. DOI: 10.12073/j.hjxb.2019400206
Citation: ZHENG Shaoxian, LI Yenan, SHI Wei, ZHAO Xilong. Microstructures and mechanical properties of welding joint of Q235/1Cr18Ni9Ti dissimilar steel with ultra-narrow-gap welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(8): 38-43. DOI: 10.12073/j.hjxb.2019400206
shu

超窄间隙焊接Q235/1Cr18Ni9Ti异种钢接头组织及力学性能

  • 1.

    兰州交通大学, 兰州 730070

  • 2.

    兰州兰石检测技术有限公司, 兰州 730314

基金项目: 国家自然科学基金资助项目（51765030，51605384）

Microstructures and mechanical properties of welding joint of Q235/1Cr18Ni9Ti dissimilar steel with ultra-narrow-gap welding

  • 1.

    Lanzhou Jiaotong University, Lanzhou 730070, China

  • 2.

    Lanzhou LS Test Technology Co., Ltd., Lanzhou 730314, China

摘要

    摘要
  • 摘要: 超窄间隙焊接厚壁异种钢具有高效、低成本、接头力学性能优良的独特优势.文中研究了Q235/1Cr18Ni9Ti异种钢超窄间隙焊接接头的微观组织及力学性能.结果表明，打底焊的熔池以FA模式凝固，凝固组织为细小的奥氏体等轴晶及少量枝晶状铁素体.填充焊和盖面焊在靠近熔合过渡区的熔池区域以AF模式凝固，凝固组织为奥氏体胞状晶及胞状晶间铁素体，在远离熔合过渡区的熔池区域则以FA模式凝固，凝固组织为奥氏体柱状树枝晶及少量骨架状铁素体.异种钢超窄间隙焊接接头的抗拉强度和弯曲性能优良，Q235一侧HAZ未出现软化，熔合过渡区及其一侧HAZ的韧性优于焊缝区.
    Abstract: Dissimilar steels with thick wall welded by ultra-narrow-gap welding have some extra advantages in increasing welding efficiency, reducing production costs, improving mechanical properties of joint. In the paper, microstructures and mechanical properties of welding joint of Q235/1Cr18Ni9Ti dissimilar steels with ultra-narrow-gap welding were studied. The results indicated that welding pool of backing weld solidified with the FA solidification mode, and solidification microstructures were made of fine equiaxed grains of austenites and a few dendritic ferrites. Welding pool of filling bead and cover pass near the transition region of fusion solidified with the AF solidification mode, solidification microstructures are made of cellular austenites and ferrites between cellular austenites, welding pool of filling bead and cover pass far away from the transition region of fusion can solidify with the FA solidification mode, and solidification microstructures were made of columnar dendrite of austenites and a few skeleton ferrites. Ultra-narrow-gap welding joint of dissimilar steel had excellent tensile strength and bending property, and the heat affected zone near the Q235 base metal can not soften. Impact toughness of the transition region of fusion and the heat affected zone near the Q235 base metal was better than that of weld zone.
    • HTML全文
    • 参考文献(11)
  • [1] Dupont J N. Microstructural evolution and high temperature failure of ferritic to austenitic dissimilar welds[J]. International Materials Reviews, 2012, 57(4):208-234.
    [2] 郑云蔚,蔡志鹏,何雨晨,等.异种钢窄间隙焊母材熔合比对碳迁移现象影响的研究[J].机械工程学报, 2016, 52(12):74-80 Zheng Yunwei, Cai Zhipeng, He Yuchen, et al. Study on the influence of fusion ratio on carbon migration phenomenon in the narrow gap welding of dissimilar steels[J]. Journal of Mechanical Engineering, 2016, 52(12):74-80
    [3] Nelson T W, Lippold J C, Mills M J. Nature and evolution of the fusion boundary in ferritic-austenitic dissimilar metal welds-part2:on-cooling transformations[J]. Welding Journal, 2000(10):267-277.
    [4] 杜兵,李彦,贾玉力.异种钢接头熔合区的脆化与断裂行为[J].焊接学报, 1998, 19(1):8-12 Du Bing, Li Yan, Jia Yuli. Embrittlement and fracture behavior of fusion zone in dissimilar steel welded joints[J]. Transactions of the China Welding Institution, 1998, 19(1):8-12
    [5] Verena W, Bernhard D, Silvia H, et al. Investigations of dissimilar welds of the temperature steels P91 and PM2000[J]. Fusion Engineering and Design, 2013(88):2539-2542.
    [6] Ming H, Zhang Z, Wang J, et al. Microstructural characterization of an SA508-309L/308L-316L domestic dissimilar metal welded safe-end joint[J]. Materials Characterization, 2014(97):101-115.
    [7] 王瑞,王凤会,田华明,等.低碳钢与不锈钢焊接接头弯曲性能的分析[J].焊接学报, 2013, 34(2):58-62 Wang Rui, Wang Fenghui, Tian Huaming, et al. Analysis of dissimilar steels welded joints[J]. Transactions of the China Welding Institution, 2013, 34(2):58-62
    [8] 范成磊,孙清洁,赵博,等.双丝窄间隙熔化极气体保护焊的焊接稳定性[J].机械工程学报, 2009, 45(7):265-269 Fan Chenglei, Sun Qingjie, Zhao Bo, et al. Stability of double wires narrow-gap gas metal arc welding[J]. Journal of Mechanical Engineering, 2009, 45(7):265-269
    [9] 郑韶先,时哲,韩峰,等.超细颗粒焊剂约束电弧超窄间隙焊接1Cr18Ni9Ti不锈钢的焊缝成形分析[J].焊接学报, 2015, 36(2):67-70 Zheng Shaoxian, Shi Zhe, Han Feng, et al. Ultra-narrow-gap weld of 1Cr18Ni9Ti stainless steel with constricted arc by ultra-fine granular flux[J]. Transactions of the China Welding Institution, 2015, 36(2):67-70
    [10] Zheng S, Li X, Che J, et al. Weld formation and heating mechanism in ultra-narrow gap with constricted arc by ultra-fine granular flux[J]. China Welding, 2012, 21(1):39-43.
    [11] 李增荣. Q235钢与1Cr18Ni9Ti不锈钢异种钢焊接接头性能的研究[J].中国新技术新产品, 2012(21):21 Li Zengrong. Research of mechanical property of dissimilar steel joint of Q235/1Cr18Ni9Ti[J]. China New Technologies and Products, 2012(21):21
    • 相关文章
    • 施引文献(5)

  • 期刊类型引用(5)

    1. 刘嘉伟，黄伟莉，胡积熠. 基于机器视觉的相贯线特征提取方法. 机电工程技术. 2024(05): 178-182 . 百度学术
    2. 张锦洲，姬世青，谭创. 融合卷积神经网络和双边滤波的相贯线焊缝提取算法. 吉林大学学报(工学版). 2024(08): 2313-2318 . 百度学术
    3. 杜瑞锋，但敏，王云馨. 基于计算机建模的圆柱体相贯线展开图研究. 忻州师范学院学报. 2024(05): 18-25 . 百度学术
    4. 谢昊，郭天太，王浩. 基于分段拟合算法的V型焊缝识别. 现代电子技术. 2023(20): 153-158 . 百度学术
    5. 董益民. 面向智慧物流的码垛机器人自动离线编程系统. 信息技术与信息化. 2023(10): 200-203 . 百度学术

    其他类型引用(0)

    • 资源附件(0)
计量
  • 文章访问数:  616
  • HTML全文浏览量:  19
  • PDF下载量:  98
  • 被引次数: 5
出版历程
  • 收稿日期:  2018-09-05

目录

摘要
HTML全文
    参考文献(11)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回

    网站版权 © 焊接杂志社焊接学报编辑部电话：0451-86323218地址：哈尔滨市松北区创新路2077号

    本系统由 北京仁和汇智信息技术有限公司 开发  百度统计