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一种钛基钎料钎焊TiAl合金接头的高温力学性能分析

李志锋,  李小强,  李力,  娄立,  屈盛官

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文章导航 > 焊接学报  > 2019 >  40(5): 148-153
李志锋, 李小强, 李力, 娄立, 屈盛官. 一种钛基钎料钎焊TiAl合金接头的高温力学性能分析[J]. 焊接学报, 2019, 40(5): 148-153. doi: 10.12073/j.hjxb.2019400143
引用本文: 李志锋, 李小强, 李力, 娄立, 屈盛官. 一种钛基钎料钎焊TiAl合金接头的高温力学性能分析[J]. 焊接学报, 2019, 40(5): 148-153. doi: 10.12073/j.hjxb.2019400143
shu
LI Zhifeng, LI Xiaoqiang, LI Li, LOU Li, QU Shengguan. Analysis on high temperature properties of TiAl alloy joints brazd with a Ti-based filler[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(5): 148-153. doi: 10.12073/j.hjxb.2019400143
Citation: LI Zhifeng, LI Xiaoqiang, LI Li, LOU Li, QU Shengguan. Analysis on high temperature properties of TiAl alloy joints brazd with a Ti-based filler[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(5): 148-153. doi: 10.12073/j.hjxb.2019400143
shu

一种钛基钎料钎焊TiAl合金接头的高温力学性能分析

doi: 10.12073/j.hjxb.2019400143
  • 1.

    华南理工大学 国家金属材料近净成形工程技术研究中心, 广州 510640

  • 2.

    华东交通大学, 南昌 330013

基金项目: GF基础科研计划资助项目（JCKY2016603C003）；民口配套规划研制项目（JPPT125GH038）；江西省教育厅科学技术研究资助项目（GJJ170372）；华南理工大学国家金属材料近净成形工程技术研究中心开放基金项目（2016005）

Analysis on high temperature properties of TiAl alloy joints brazd with a Ti-based filler

  • 1.

    National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology, Guangzhou 510640, China

  • 2.

    East China Jiaotong University, Nanchang 330013, China

  • 摘要: 采用自主研发的一种Ti-Zr-Cu-Ni-Co-Mo非晶钎料对TiAl合金进行钎焊连接，钎焊温度为1 000 ℃，时间为5 min，对所得的钎焊接头进行了高温抗剪强度和抗拉强度研究，并与母材强度进行了对比. 结果表明，钎焊接头在700 ℃高温下可长期服役，但剪切试验温度高于700 ℃后由于氧化物的生成和钎焊中心区显微组织发生变化导致剪切性能急剧下降，钎焊接头跟母材在不同拉伸试验温度下的抗拉强度随试验温度上升呈下降趋势，两者差距先减小后增大，分别在不高于600和800 ℃条件下仍能保持室温性能的80%以上.
    Abstract: Vacuum brazing of TiAl alloy with Ti-Zr-Cu-Ni-Co-Mo amorphous filler as interlayer was investigated. The shear strength and tensile strength at high temperature of the joints brazed at 1 000 ℃ for 5 min were studied and was compared with the strength of base metal. Results show that the brazed joints can be used for a long time at 700 ℃, but the shear strength of the joints decreases sharply when the shear testing temperature is higher than 700 ℃ due to the formation of oxide and the change of microstructures in the central zone of brazed joints. The tensile strength of brazed joints and base metal obtained at different tensile testing temperatures decreases with the increasing of testing temperature. The research shows that the gap between brazed joints and base metal decreases first and then increases, and the room temperature performance of brazed joints and base metal can still be maintained above 80% at temperature of not higher than 600 and 800 ℃, respectively.
  • [1] 章德铭,陈贵清,韩杰才,等.轻质高温结构材料-γ-TiAl基合金的研究动向[J].材料导报, 2005, 19(8):47-50 Zhang Deming, Chen Guiqing, Han Jiecai, et al. Research trend of light high temperature structural material-γ-TiAl based alloy[J]. Materials Reports, 2005, 19(8):47-50
    [2] 林均品,陈国良. TiAl基金属间化合物的发展[J].中国材料进展, 2009, 28(1):31-37 Lin Junpin, Chen Guoliang. Development of TiAl-based intermetallic compounds[J]. Materials China, 2009, 28(1):31-37
    [3] Leyens C, Peters M.钛与钛合金[M].陈振华,等译.化学工业出版社, 2005.
    [4] 何鹏,李海新,林铁松,等. TiAl基合金与Ni基合金钎焊连接接头界面组织及性能[J].稀有金属材料与工程, 2013, 43(11):2248-2252 He Peng, Li Haixin, Lin Tiesong, et al. Interfacial microstructure and properties of brazed joint between TiAl-based alloy and Ni-based alloy[J]. Rare Metal Materials And Engineering, 2013, 43(11):2248-2252
    [5] Song X G, Cao J, Liu Y Z, et al. Brazing high Nb containing TiAl alloy using Ti-Ni-Nb eutectic braze alloy[J]. Intermetallics, 2012, 22:136-141.
    [6] Hong I T, Koo C H. The study of vacuum-furnace brazing of C103 and Ti-6Al-4V using Ti-15Cu-15Ni foil[J]. Materials Chemistry and Physics, 2005, 94:131-140.
    [7] Hong I T, Koo C H. Vacuum-furnace brazing of C103 and Ti-6Al-4V with Ti-15Cu-15Ni filler-metal[J]. Materials Science and Engineering A, 2005, 398(1-2):113-127.
    [8] Lee S J, Wu S K, Lin R Y. Infrared joining of TiAl intermetallics using Ti-15Cu-15Ni foil-Ⅰ. The microstructure morphologies of joint interfaces[J]. Acta Materialia, 1998, 46(4):1283-1295.
    [9] 彭小敏,夏长清,王志辉,等. TiAl基合金高温氧化及防护的研究进展[J].中国有色金属学报, 2010, 20(6):1116-1130 Peng Xiaomin, Xia Changqing, Wang Zhihui, et al. Research progress in high temperature oxidation and protection of TiAl-based alloys[J]. The Chinese Journal of Nonferrous Metals, 2010, 20(6):1116-1130
    [10] Yang Z W, Zhang L X, He P, et al. Interfacial structure and fracture behavior of TiB whisker-reinforced C/SiC composite and TiAl joints brazed with Ti-Ni-B brazing alloy[J]. Materials Science and Engineering A, 2012, 532:471-475.
    [11] He P, Feng J C, Xu W. Mechanical property of induction brazing TiAl-based intermetallics to steel 35CrMo using AgCuTi filler metal[J]. Materials Science and Engineering A, 2006, 418:45-52.
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  • 收稿日期:  2017-12-06

一种钛基钎料钎焊TiAl合金接头的高温力学性能分析

doi: 10.12073/j.hjxb.2019400143
  • 1. 华南理工大学 国家金属材料近净成形工程技术研究中心, 广州 510640
  • 2. 华东交通大学, 南昌 330013
    • 基金项目:  GF基础科研计划资助项目（JCKY2016603C003）；民口配套规划研制项目（JPPT125GH038）；江西省教育厅科学技术研究资助项目（GJJ170372）；华南理工大学国家金属材料近净成形工程技术研究中心开放基金项目（2016005）
  • 收稿日期: 2017-12-06

摘要: 采用自主研发的一种Ti-Zr-Cu-Ni-Co-Mo非晶钎料对TiAl合金进行钎焊连接，钎焊温度为1 000 ℃，时间为5 min，对所得的钎焊接头进行了高温抗剪强度和抗拉强度研究，并与母材强度进行了对比. 结果表明，钎焊接头在700 ℃高温下可长期服役，但剪切试验温度高于700 ℃后由于氧化物的生成和钎焊中心区显微组织发生变化导致剪切性能急剧下降，钎焊接头跟母材在不同拉伸试验温度下的抗拉强度随试验温度上升呈下降趋势，两者差距先减小后增大，分别在不高于600和800 ℃条件下仍能保持室温性能的80%以上.

English Abstract

李志锋, 李小强, 李力, 娄立, 屈盛官. 一种钛基钎料钎焊TiAl合金接头的高温力学性能分析[J]. 焊接学报, 2019, 40(5): 148-153. doi: 10.12073/j.hjxb.2019400143
引用本文: 李志锋, 李小强, 李力, 娄立, 屈盛官. 一种钛基钎料钎焊TiAl合金接头的高温力学性能分析[J]. 焊接学报, 2019, 40(5): 148-153. doi: 10.12073/j.hjxb.2019400143
shu
LI Zhifeng, LI Xiaoqiang, LI Li, LOU Li, QU Shengguan. Analysis on high temperature properties of TiAl alloy joints brazd with a Ti-based filler[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(5): 148-153. doi: 10.12073/j.hjxb.2019400143
Citation: LI Zhifeng, LI Xiaoqiang, LI Li, LOU Li, QU Shengguan. Analysis on high temperature properties of TiAl alloy joints brazd with a Ti-based filler[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(5): 148-153. doi: 10.12073/j.hjxb.2019400143
shu

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