| HP45NbTi高温合金炉管的焊接 |
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| 引用本文： | 孙明慧,王晓军,夏天东,刘天佐.HP45NbTi高温合金炉管的焊接[J].焊接,2006(8):22-26. |
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| 作者姓名： | 孙明慧 王晓军 夏天东 刘天佐 |
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| 作者单位： | 兰州理工大学有色金属合金省部共建教育部重点实验室,730050 |
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| 摘 要： | 分析了HP45NoTi高温合金炉管的焊接性,采用NiR82镍基焊丝手工钨极氩弧焊打底、25-35Nb焊丝填充并盖面的焊接工艺,焊接了外径125 mm、壁厚11mm的离心铸造HP45NbTi高温合金炉管对接接头,获得了常温和高温下都满足使用要求的焊接接头,并分析了焊接前后组织的分布情况.
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| 关 键 词： | 显微组织 高温合金 HP合金 炉管 |
| 收稿时间： | 2006-05-22 |
| 修稿时间： | 2006年5月22日 |
WELDING OF HP45NbTi SUPERALLOY PIPE |
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| Sun Minghui,Wang Xiaojun,Xia Tiandong,Liu Tianzuo.WELDING OF HP45NbTi SUPERALLOY PIPE[J].Welding & Joining,2006(8):22-26. |
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| Authors: | Sun Minghui Wang Xiaojun Xia Tiandong Liu Tianzuo |
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| Affiliation: | Key Laboratory of Non-ferrous Metal Alloys, The Ministry of Education, Lanzhou University of Technology |
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| Abstract: | The weldability of centrifugally casting heat resistant alloy HP45NbTi was investigated. The HP45NbTi furnace tubes with thickness of 11 mm and outer diameter of 125 mm were butt-welded using a combined process. The root passes were welded by manual TIG welding with nickel based alloy wire NiR82, the subsequent filling and top passes with wire 25-35Nb. The mechanical properties of welded joint were examined and were up to the mustard. The microstructure of the joints was also observed and analyzed before and after welding. |
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| Keywords: | microstructure high-temperature alloy HP alloy furnace tube |
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