| Ti-50Ni钎焊TZM与ZrCp-W接头界面组织及性能 |
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| 引用本文： | 韩桂海,赵洪运,宋晓国,龙伟民,沈元勋,王美荣,冯吉才. Ti-50Ni钎焊TZM与ZrCp-W接头界面组织及性能[J]. 稀有金属材料与工程, 2018, 47(6): 1936-1940 |
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| 作者姓名： | 韩桂海 赵洪运 宋晓国 龙伟民 沈元勋 王美荣 冯吉才 |
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| 作者单位： | 哈尔滨工业大学先进焊接与连接国家重点实验室;齐鲁工业大学(山东省科学院)山东省科学院海洋仪器仪表研究所山东省海洋环境监测技术重点实验室国家海洋监测设备工程技术研究中心;郑州机械研究所新型钎焊材料与技术国家重点实验室 |
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| 基金项目： | 国家科技重大专项资助(项目号2014ZX04001131),国家自然科学基金资助(项目号51405099),国家国际科技合作专项资助 (项目号2015DFA50470) |
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| 摘 要： | 采用Ti-50Ni(at%)钎料实现了TZM合金与ZrC_p-W复合材料的真空钎焊连接,通过SEM、EDS、XRD等方法分析了接头界面的微观组织结构,研究了钎焊温度对TZM/Ti-50Ni/ZrC_p-W接头界面组织及性能的影响。结果表明:钎焊接头的典型界面结构为TZM/Ti-Mo+TiNi_3+Mo-Ti-W/Ti Ni+TiNi_3+W(s,s)+(Ti,Zr)C/ZrC_p-W。随着钎焊温度的升高,Ti-Mo固溶体层宽度逐渐增大,线状条纹增多、增宽,组织逐渐粗大,晶界变圆滑;接头的抗剪强度随钎焊温度升高先升高后降低,当钎焊温度为1340℃,保温10 min时,接头获得最大抗剪强度为146 MPa。
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| 关 键 词： | 真空钎焊 TZM合金 ZrCp-W复合材料 Ti-50Ni钎料 界面组织 力学性能, |
| 收稿时间： | 2016-06-08 |
| 修稿时间： | 2016-09-09 |
Interfacial Microstructure and Properties of TZM Alloy and ZrCp-W Composite Joints Brazed Using Ti-50Ni Filler |
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| Han Guihai,Zhao Hongyun,Song Xiaoguo,Long Weimin,Shen Yuanxun,Wang Meirong and 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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| Authors: | Han Guihai Zhao Hongyun Song Xiaoguo Long Weimin Shen Yuanxun Wang Meirong Feng Jicai |
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| Affiliation: | 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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| 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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| Keywords: | Vacuum brazing TZM alloy ZrCp-W composite Ti-50Ni filler Interfacial microstructure Mechanical property |
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