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TA1中厚板电子束焊接组织性能及接头强化原因分析

白威 李大东 董雪娇 陈容

白威, 李大东, 董雪娇, 陈容. TA1中厚板电子束焊接组织性能及接头强化原因分析[J]. 钢铁钒钛, 2021, 42(6): 171-177. doi: 10.7513/j.issn.1004-7638.2021.06.025
引用本文: 白威, 李大东, 董雪娇, 陈容. TA1中厚板电子束焊接组织性能及接头强化原因分析[J]. 钢铁钒钛, 2021, 42(6): 171-177. doi: 10.7513/j.issn.1004-7638.2021.06.025
Bai Wei, Li Dadong, Dong Xuejiao, Chen Rong. Microstructure and properties of electron beam welded TA1 medium plate and analysis of joint strengthening[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(6): 171-177. doi: 10.7513/j.issn.1004-7638.2021.06.025
Citation: Bai Wei, Li Dadong, Dong Xuejiao, Chen Rong. Microstructure and properties of electron beam welded TA1 medium plate and analysis of joint strengthening[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(6): 171-177. doi: 10.7513/j.issn.1004-7638.2021.06.025

TA1中厚板电子束焊接组织性能及接头强化原因分析

doi: 10.7513/j.issn.1004-7638.2021.06.025
详细信息
    作者简介:

    白威(1989 —),男,研究生,主要研究方向:金属材料焊接,E-mail:pzhpyybw@163.com

  • 中图分类号: TF823, TG456.3

Microstructure and properties of electron beam welded TA1 medium plate and analysis of joint strengthening

  • 摘要: 采用真空电子束焊对30 mm厚TA1工业纯钛试板开展焊接试验,结合光学金相显微镜(OM)、维氏硬度、拉伸试验及电子背散射衍射(EBSD)对接头进行宏微观组织性能检验,分析电子束焊接过程对TA1材料微观组织与力学性能的影响及接头强化原因。结果表明:电子束焊接热循环过程使TA1母材至焊缝组织由等轴α向锯齿α转变;焊缝及热影响区的强度、硬度均高于母材;接头性能得到强化与锯齿α及针状α马氏体对硬度的提升作用、焊缝及热影响区内细小的锯齿状α晶粒以及微细孪晶对焊接组织的细化作用有关。
  • 图  1  焊接装配示意 (单位:mm)

    Figure  1.  Assembly diagram of the welded joint

    图  2  接头截面宏观组织

    (a)接头截面;(b)接头中层区域组织

    Figure  2.  Macro morphology of the welded joint

    图  3  TA1母材微观组织

    Figure  3.  Microstructures in base metal of TA1

    图  4  接头中层不同区域的微观组织

    (a)接头组织形貌;(b)热影响区组织;(c)焊缝低倍组织;(d)焊缝高倍组织

    Figure  4.  Microstructures in different areas of the joint

    图  5  接头不同区域的截面组织形态(IPF图)

    (a)上层 ;(b)中层 ;(c)下层

    Figure  5.  IPF images of the joint at different position

    图  6  焊缝(左)及热影响区(右)EBSD图

    (a)(c)反极图;(b)(d)晶界取向分布;(e)(g)极图;(f)(h)孪晶取向差角/轴

    Figure  6.  EBSD images of weld seam and HAZ

    图  7  TA1焊接拉伸断裂试样

    Figure  7.  Tensile sample of the TA1 joint (after fracture)

    图  8  接头截面横向硬度分布

    Figure  8.  Hardness distribution of the welded joint

    表  1  TA1 化学成分

    Table  1.   Chemical composition of TA1 plate %

    FeCNHOTi
    0.0350.0110.0020.0010.038余量
    下载: 导出CSV

    表  2  电子束焊接工艺参数

    Table  2.   Process parameters of EBW

    工艺
    参数
    加速电压
    /kV
    聚焦电流
    /mA
    束流
    /mA
    焊接速度/(mm·s−1)扫描频率
    /Hz
    扫描幅值
    /mm
    聚焦
    方式
    定位焊150225030158 0000.5下聚焦
    深熔焊150225090158 0000.5下聚焦
    下载: 导出CSV

    表  3  TA1母材及接头室温(25 ℃)拉伸性能

    Table  3.   Tensile properties of BM and welded joints at room temperature

    样品分类取样
    位置
    Rp0.2
    /MPa
    Rm
    /MPa
    A
    /%
    Z
    /%
    断口距焊缝
    /mm
    焊缝直径
    /mm
    断口直径/mm

    母材
    上层 200.3 334.0 43.7 74.3
    中层 188.0 326.5 50.3 75.5
    下层 191.7 331.3 48.0 74.3

    接头
    上层 225.7 335.3 47.7 76.0 12.4 4.6 4.2
    中层 220.7 332.7 46.7 76.7 11.1 4.6 4.2
    下层 216.0 335.3 45.7 76.0 9.7 4.6 4.3
    注:Rp0.2-屈服强度;Rm-抗拉强度;A-断后伸长率;Z-断面收缩率。
    下载: 导出CSV
  • [1] Zhao Yongqing. Current situation and development trend of titanium alloys[J]. Materials China, 2010,29(5):1−8. (赵永庆. 国内外钛合金研究的发展现状及趋势[J]. 中国材料进展, 2010,29(5):1−8.
    [2] Wang Yating, Lin Naiming, Tang Bin. Development of thermal oxidation of titanium and titanium alloys[J]. Corrosion & Protection, 2014,35(10):965−970. (王娅婷, 林乃明, 唐宾. 钛及钛合金热氧化工艺的研究现状[J]. 腐蚀与防护, 2014,35(10):965−970.
    [3] Li Xingyu, Li Fang, Hua Xueming, et al. Laser welding technology of industrial pure titanium TA2[J]. Electric Welding Machine, 2018,48(7):19−24,35. (李兴宇, 李芳, 华学明, 等. 工业纯钛TA2板激光焊接工艺[J]. 电焊机, 2018,48(7):19−24,35.
    [4] Huang Jiuling, Kong Liang, Wang Min, et al. Pure titanium TA2 thin plate double tungsten electrode argon arc welding process[J]. Transactions of the China Welding Institution, 2019,40(9):14−18,161. (黄九龄, 孔 谅, 王 敏, 等. 纯钛TA2薄板双钨极氩弧焊焊接工艺[J]. 焊接学报, 2019,40(9):14−18,161.
    [5] Zhou Ranhui, Gao Fuyang, Liu Xiangqian, et al. Review on friction stir welding of titanium and titanium alloys[J]. Development and Application of Materials, 2018,33(4):127−136. (周冉辉, 高福洋, 刘向前, 等. 钛及钛合金搅拌摩擦焊接技术综述[J]. 材料开发与应用, 2018,33(4):127−136.
    [6] Hao Zongbin, Li Xiaoquan, Fan Jinkai. Experimental research on one-side welding both sides formation of plasma arc welding for TA2 plates with thickness of 8 mm[J]. Hot Working Technology, 2017,46(11):214−217. (郝宗斌, 李晓泉, 范晋楷. 8 mm TA2纯钛厚板等离子弧单面焊双面成形试验研究[J]. 热加工工艺, 2017,46(11):214−217.
    [7] Zhang Binggang, Wu Lin, Feng Jicai. Development status of EBW technology both at home and abroad[J]. Welding & Joining, 2004,(2):5−8. (张秉刚, 吴林, 冯吉才. 国内外电子束焊接技术研究现状[J]. 焊接, 2004,(2):5−8. doi: 10.3969/j.issn.1001-1382.2004.02.001
    [8] Li Yajiang, Liu Kun. Application and advanced bonding technology of titanium alloy in aviation industry[J]. Aeronautical Manufacturing Technology, 2015,(16):34−37. (李亚江, 刘坤. 钛合金在航空领域的应用及其先进连接技术[J]. 航空制造技术, 2015,(16):34−37.
    [9] Huang Yong, Fan Ding, Zhang Han. Effect of surface activating flux on weld penetration of A-TIG welding for titanium alloy[J]. Rare Metal Materials and Engineering, 2006,(10):1586−1588. (黄勇, 樊丁, 张涵. 表面活性剂对钛合金A-TIG焊熔深的影响[J]. 稀有金属材料与工程, 2006,(10):1586−1588. doi: 10.3321/j.issn:1002-185X.2006.10.018
    [10] 王文翰. 焊接技术手册[M]. 郑州: 河南科学技术出版社, 2001: 293.

    Wang Wenhan. Welding technical manual [M]. Zhengzhou: Henan Science and Technology Press, 2001: 293.
    [11] Li Zhen, Shi Yan, Liu Jia, et al. Effect of laser welding parameters on microstructure and mechanical properties of commercial pure titanium[J]. Applied Laser, 2016,36(1):53−57. (李镇, 石岩, 刘佳, 等. 工艺参数对工业纯钛激光焊接接头组织性能的影响[J]. 应用激光, 2016,36(1):53−57.
    [12] Chen Zhenghua, Yang Chunhua, Huang Changqing, et al. Investigation of the twinning in plastic deformation of magnesium alloy[J]. Materials Reports, 2006,20(8):107−113. (陈振华, 杨春花, 黄长清, 等. 镁合金塑性变形中孪生的研究[J]. 材料导报, 2006,20(8):107−113. doi: 10.3321/j.issn:1005-023X.2006.08.031
    [13] Wang Y N, Huang J C. The role of twinning and untwinning in yielding behavior in hot-extruded Mg-Al-Zn alloy[J]. Acta Materialia, 2007,55(3):897−905. doi: 10.1016/j.actamat.2006.09.010
    [14] Nemat N S, Guo W G, Cheng J Y. Mechanical properties and deformation mechanisms of a commercially pure titanium[J]. Acta Materialia, 1999,47(13):3705−3720. doi: 10.1016/S1359-6454(99)00203-7
    [15] Duan Xiaoge, Jiang Haitao, Liu Jixiong, et al. Recrystallization process of commercial pure titanium cold rolled sheet[J]. Chinese Journal of Rare Metals, 2012,36(3):353−356. (段晓鸽, 江海涛, 刘继雄, 等. 工业纯钛TA2冷轧板再结晶过程的研究[J]. 稀有金属, 2012,36(3):353−356. doi: 10.3969/j.issn.0258-7076.2012.03.003
    [16] Liu H, Nakata K, Yamamoto N, et al. Mechanical properties and strengthening mechanisms in laser beam welds of pure titanium[J]. Science and Technology of Welding and Joining, 2011,16(7):581−585. doi: 10.1179/1362171811Y.0000000054
    [17] Liao Zhiqian, Wang Zhongping. Plasma welding of titanium alloy thick-plate[J]. Development and Application of Materials, 2005,20(4):27−28,37. (廖志谦, 王忠平. 钛合金厚板的等离子焊接[J]. 材料开发与应用, 2005,20(4):27−28,37. doi: 10.3969/j.issn.1003-1545.2005.04.008
    [18] Ni Cong, Shi Yan, Chen Junke, et al. Technology research of laser welded commercial pure titanium[J]. Applied Laser, 2015,35(2):212−215. (倪聪, 石岩, 陈俊科, 等. 工业纯钛板激光焊接工艺研究[J]. 应用激光, 2015,35(2):212−215. doi: 10.3788/AL20153502.0212
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  • 收稿日期:  2021-07-06
  • 刊出日期:  2021-12-31

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