p-W復(fù)合材料;Ti-50Ni釬料;界面組織;力學(xué)性能,"/> p-W復(fù)合材料的真空釬焊連接,通過SEM、EDS、XRD等方法分析了接頭界面的微觀組織結(jié)構(gòu),研究了釬焊溫度對TZM/Ti-50Ni/ZrCp-W接頭界面組織及性能的影響。結(jié)果表明：釬焊接頭的典型界面結(jié)構(gòu)為TZM/Ti-Mo+TiNi3+Mo-Ti-W/TiNi+TiNi3+W(s,s)+TiC/ZrCp-W。隨著釬焊溫度的升高,Ti-Mo固溶體層寬度逐漸增大,線狀條紋增多、增寬,組織逐漸粗大,晶界變圓滑；接頭的抗剪強(qiáng)度隨釬焊溫度升高先升高后降低,當(dāng)釬焊溫度為1340 °C,保溫10 min時,接頭獲得最大抗剪強(qiáng)度為146 MPa。"/>

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Ti-50Ni釬焊TZM與ZrCp-W接頭界面組織及性能
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哈爾濱工業(yè)大學(xué),哈爾濱工業(yè)大學(xué),哈爾濱工業(yè)大學(xué),鄭州機(jī)械研究所,鄭州機(jī)械研究所,哈爾濱工業(yè)大學(xué),哈爾濱工業(yè)大學(xué)

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國家科技重大專項(xiàng)資助(項(xiàng)目號2014ZX04001131),國家自然科學(xué)基金資助(項(xiàng)目號51405099),國家國際科技合作專項(xiàng)資助 (項(xiàng)目號2015DFA50470)


Interfacial Microstructure and Properties of TZM Alloy and ZrCp-W Composite Joints Brazed Using Ti-50Ni Filler
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Harbin Institute of Technology,State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,State Key Laboratory of Advanced Welding and Joining,Zhengzhou Research Institute of Mechanical Engineering,State Key Laboratory of Advanced Brazing Filler Metals and Technology,Zhengzhou Research Institute of Mechanical Engineering,State Key Laboratory of Advanced Brazing Filler Metals and Technology,Harbin Institute of Technology,State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,State Key Laboratory of Advanced Welding and Joining

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    摘要:

    采用Ti-50Ni(at%)釬料實(shí)現(xiàn)了TZM合金與ZrCp-W復(fù)合材料的真空釬焊連接,通過SEM、EDS、XRD等方法分析了接頭界面的微觀組織結(jié)構(gòu),研究了釬焊溫度對TZM/Ti-50Ni/ZrCp-W接頭界面組織及性能的影響。結(jié)果表明：釬焊接頭的典型界面結(jié)構(gòu)為TZM/Ti-Mo+TiNi3+Mo-Ti-W/TiNi+TiNi3+W(s,s)+TiC/ZrCp-W。隨著釬焊溫度的升高,Ti-Mo固溶體層寬度逐漸增大,線狀條紋增多、增寬,組織逐漸粗大,晶界變圓滑；接頭的抗剪強(qiáng)度隨釬焊溫度升高先升高后降低,當(dāng)釬焊溫度為1340 °C,保溫10 min時,接頭獲得最大抗剪強(qiáng)度為146 MPa。

    Abstract:

    Vacuum brazing of TZM alloy and ZrCp-W composite was achieved by using Ti-50Ni (at. %) eutectic brazing alloy. The typical interfacial microstructure of brazed joints was TZM/Ti-Mo+TiNi3+Mo-Ti-W/TiNi+TiNi3+W(s,s)+TiC/ZrCp-W, which was characterized using SEM, EDS and XRD. In addition, the effect of brazing temperature on interfacial microstructure and joining properties of TZM/Ti-50Ni/ZrCp-W brazed joints was investigated in detail. As the brazing temperature increased, more and more elements Ti and Ni in molten brazing alloy diffused into the base materials, which in turn broaden the brazed joints. At the same time, the grain size gradually increased and the grain boundary became smoother. Experimental results demonstrated that reliable brazed joints with average shear strength up to 146 MPa was achieved when brazed at 1340 °C for 10 min.

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韓桂海,趙洪運(yùn),宋曉國,龍偉民,沈元勛,王美榮,馮吉才. Ti-50Ni釬焊TZM與ZrCp-W接頭界面組織及性能[J].稀有金屬材料與工程,2018,47(6):1936~1940.[Han Guihai, Zhao Hongyun, Song Xiaoguo, Long Weimin, Shen Yuanxun, Wang Meirong, Feng Jicai. Interfacial Microstructure and Properties of TZM Alloy and ZrCp-W Composite Joints Brazed Using Ti-50Ni Filler[J]. Rare Metal Materials and Engineering,2018,47(6):1936~1940.]
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  • 收稿日期:2016-06-08
  • 最后修改日期:2016-09-09
  • 錄用日期:2016-10-18
  • 在線發(fā)布日期: 2018-09-06
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