| 热轧态镍基高温合金电子束焊接接头裂纹容限 |
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| 引用本文： | 吴冰,李晋炜,巩水利.热轧态镍基高温合金电子束焊接接头裂纹容限[J].焊接学报,2010,31(4):38-40. |
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| 作者姓名： | 吴冰 李晋炜 巩水利 |
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| 作者单位： | 1. 西安交通大学,材料学院,西安,710049;北京航空制造工程研究所,高能束流加工技术重点实验室,北京,100024
2. 北京航空制造工程研究所,高能束流加工技术重点实验室,北京,100024 |
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| 摘 要： | 对GH4169合金电子束焊接接头进行了裂纹尖端张开位移(CTOD)试验分析,试验温度为20℃和650℃,评价GH4169合金接头的抗断裂性能.在CTOD试验的基础上,开展GH4169合金电子束焊接接头裂纹容限评定.试验结果表明,不论是在常温下(20℃)还是在高温下(650℃),母材的CTOD值高于其焊缝值,即母材的抗断裂能力优于焊缝值,并且焊缝的CTOD值较低,易发生脆性断裂.裂纹容限的计算结果表明,在同一应力水平下,母材的裂纹容限比焊缝值高,但母材与焊缝的裂纹容限差值随着应力水平的升高而减小.
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| 关 键 词： | 电子束焊接合金 GH4169合金 裂纹尖端张开位移 裂纹容限 |
| 收稿时间： | 2008/10/20 0:00:00 |
Crack tolerance of heat rolling nickel-based superalloy joints in electron beam welding |
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| WU Bing,LI Jinwei and GONG Shuili.Crack tolerance of heat rolling nickel-based superalloy joints in electron beam welding[J].Transactions of The China Welding Institution,2010,31(4):38-40. |
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| Authors: | WU Bing LI Jinwei and GONG Shuili |
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| Affiliation: | School of Material Science and Engineering, Xi''an Jiaotong University, Xi''an 710049, China;Key Laboratory of High Energy Density Beam Processing Technology, Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China,Key Laboratory of High Energy Density Beam Processing Technology, Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China and Key Laboratory of High Energy Density Beam Processing Technology, Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China |
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| Abstract: | |
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| Keywords: | electron beam welding GH4169 alloy crack tip opening displacement crack tolerance |
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