| Ti-37.5Zr-15Cu-10Ni钎焊钼的钎缝组织分析 |
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| 引用本文： | 纠永涛,路全彬,何鹏,王德智,龙伟民.Ti-37.5Zr-15Cu-10Ni钎焊钼的钎缝组织分析[J].焊接学报,2019,40(4):133-136. |
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| 作者姓名： | 纠永涛 路全彬 何鹏 王德智 龙伟民 |
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| 作者单位： | 郑州机械研究所 新型钎焊材料与技术国家重点实验室,郑州,450001;哈尔滨工业大学 先进焊接与连接国家重点实验室,哈尔滨,150001;University of Houston,School of Natural Sciences and Mathematics,Houston |
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| 基金项目： | 国家国际科技合作计划项目(2015DFA50470)；河南省科技创新人才计划项目(杰青)(174200510010) |
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| 摘 要： | 采用Ti-37.5Zr-15Cu-10Ni非晶钎料真空钎焊钼，获得Mo/Mo钎焊接头，研究钎焊过程液态钎料与母材的相互作用. 结果表明，液态Ti-37.5Zr-15Cu-10Ni钎料与钼发生扩散–溶解，即母材钼向钎料中的溶解和钎料组分向母材的扩散. 随钎焊温度的升高，钼向钎料中溶解量增加，凝固后钼主要固溶在Ti基固溶体内；随钎焊温度的升高，发生钎料组分向母材晶间的扩散，当温度为900 ℃时，发生显著的晶间渗入现象. 为得到良好的钎焊接头，避免母材过量溶解和晶间渗入的发生，Ti-37.5Zr-15Cu-10Ni钎料真空钎焊钼温度不宜高于900 ℃.
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| 关 键 词： | Ti-37.5Zr-15Cu-10Ni Mo/Mo钎焊接头 晶间渗入 溶解 扩散 |
| 收稿时间： | 2017/12/4 0:00:00 |
Investigations on the microstructure of Mo/Ti-37.5Zr-15Cu-10Ni/Mo brazing seam |
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| JIU Yongtao,LU Quanbin,HE Peng,WANG Dezhi,LONG Weiming.Investigations on the microstructure of Mo/Ti-37.5Zr-15Cu-10Ni/Mo brazing seam[J].Transactions of The China Welding Institution,2019,40(4):133-136. |
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| Authors: | JIU Yongtao LU Quanbin HE Peng WANG Dezhi LONG Weiming |
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| Affiliation: | 1. Zhengzhou State Key Laboratory of Advanced Brazing Filler Metals and Technology, Zhengzhou Research Institute of Mechanical Engineering, Zhenzhou 450001, China;2. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China;3. School of Natural Sciences and Mathematics, University of Houston, Houston, America |
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| Abstract: | Mo/Mo joints were prepared by brazing Mo with Ti-37.5Zr-15Cu-10Ni brazing filler metal. The interaction between brazing filler metal and base metal was studied. The results showed that the liquid Ti-37.5Zr-15Cu-10Ni and Mo were diffused and dissolved, the dissolution of the base metal Mo into the brazing filler metal and the diffusion of the brazing filler metal to the base metal. With the increase of the brazing temperature, the amount of Mo dissolved in the brazing filler metal increased, and the Mo was mainly dissolved in the Ti solid solution after solidification. With the increase of the brazing temperature, the brazing filler metal diffused into grain boundaries and intergranular penetration was observed when the brazing temperature was 900 °C. In order to obtain good joint quality, avoid excessive dissolution of base metals and intergranular penetration, the temperature brazing Mo with Ti-37.5Zr-15Cu-10Ni should not be higher than 900 °C. |
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| Keywords: | Ti-37 5Zr-15Cu-10Ni|Mo/Mo joints|intergranular penetration|dissolution|diffusion |
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