| Ag-28Cu钎焊TA2/BT20接头组织分析 |
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| 引用本文： | 何鹏,曹健,徐富家,董显,郑丽,程迎涛.Ag-28Cu钎焊TA2/BT20接头组织分析[J].焊接学报,2009,30(12):9-12. |
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| 作者姓名： | 何鹏 曹健 徐富家 董显 郑丽 程迎涛 |
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| 作者单位： | 1. 哈尔滨工业大学,现代焊接生产技术国家重点实验室,哈尔滨,150001
2. 浙江信和焊材制造有限公司,浙江,金华,321016 |
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| 摘 要： | 采用 Ag-28Cu 钎料对 TA8 纯钛和 BT20 钛合金的管板组合构件进行真空钎焊连接试验,分析了不同钎焊温度及保温时间对接头界面结构的影响.结果表明,接头界面结构为 BT20/钛基固溶体/Ti2Cu 化合物/银基固溶体+TiCu 化合物/Ti2Cu 化合物/钛基固溶体/TA2;随着钎焊温度的升高,银基固溶体和 TiCu 化合物逐渐消失,Ⅰ区逐渐出现较明显的树枝状生长的组织,分析为 Ti2Cu 化合物;随着连接时间的延长,Ti2Cu 化合物逐渐增加,且靠近母材的钛基固溶体层增宽,Ⅱ区最终演变成一个 Ti2Cu 反应层.Abstract：The vacuum brazing of TA2/BT20 titanium alloy was carried out with Ag-28Cu brazing filler metal, and the effects of brazing temperature and holding time on interface structure of the joints were diseussed. The experimental results showed that the interface structure consisted of BT20/Ti (s,s)/Ti2Cu/Ag (s,s) +TiCu/Ti2Cu/Ti (s,s)/TA2. The Ag (s,s) and TiCu compound decreased gradually with the increasing of brazing temperature and holding time, and then Ti2 Cu compound increased corresponding.And the Ti (s,s) layer gradually became thick.
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| 关 键 词： | 纯钛 钛合金 真空钎焊 界面结构 |
| 收稿时间： | 2008/7/29 0:00:00 |
Structure of brazed joints of TA2/BT20 with Ag-28Cu filler metal |
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| HE Peng,CAO Jian,XU Fuji,DONG Xian,ZHENG Li and CHENG Yingtao.Structure of brazed joints of TA2/BT20 with Ag-28Cu filler metal[J].Transactions of The China Welding Institution,2009,30(12):9-12. |
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| Authors: | HE Peng CAO Jian XU Fuji DONG Xian ZHENG Li and CHENG Yingtao |
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| Affiliation: | National Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China,National Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China,National Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China,Zhejiang Jinhua Seleno Brazing Alloys MFG. CO, Ltd, Jinhua 321016, China,Zhejiang Jinhua Seleno Brazing Alloys MFG. CO, Ltd, Jinhua 321016, China and Zhejiang Jinhua Seleno Brazing Alloys MFG. CO, Ltd, Jinhua 321016, China |
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| Abstract: | The vacuum brazing of TA2/BT20 titanium alloy was carried out with Ag-28Cu brazing filler metal, and the effects of brazing temperature and holding time on interface structure of the joints were diseussed. The experimental results showed that the interface structure consisted of BT20/Ti (s,s)/Ti2Cu/Ag (s,s) +TiCu/Ti2Cu/Ti (s,s)/TA2. The Ag (s,s) and TiCu compound decreased gradually with the increasing of brazing temperature and holding time, and then Ti2 Cu compound increased corresponding.And the Ti (s,s) layer gradually became thick. |
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| Keywords: | TA2 BT20 |
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