| 电子束局部热处理对TC4合金接头疲劳性能影响 |
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| 引用本文： | 付鹏飞,刘方军,毛智勇,李晋炜.电子束局部热处理对TC4合金接头疲劳性能影响[J].材料热处理学报,2007,28(2):60-63. |
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| 作者姓名： | 付鹏飞 刘方军 毛智勇 李晋炜 |
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| 作者单位： | 北京航空制造工程研究所高能束流加工国防科技重点实验室,北京,100024 |
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| 摘 要： | 通过低周轴向应变疲劳试验,研究了电子束局部热处理对TC4钛合金接头疲劳性能的影响.结果表明,电子束局部热处理TC4钛合金接头在疲劳过程中存在一定的软化行为;在一定的载荷条件下,与焊后未热处理状态相比,经过电子束局部热处理后,TC4钛合金电子束焊接接头的疲劳寿命可以提高30%以上.
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| 关 键 词： | 电子束 热处理 TC4钛合金 低周疲劳 电子束局部热处理 钛合金接头 疲劳寿命 性能影响 joints alloy fatigue properties cycle heat treatment local electron beam 焊接接头 状态 载荷条件 软化行为 存在 疲劳过程 结果 疲劳性能 研究 |
| 文章编号： | 1009-6264（2007）02-0060-00 |
| 修稿时间： | 2006-03-20 |
Influence of electron beam local heat treatment on low cycle fatigue properties of TC4 alloy joints |
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| FU Peng-fei,LIU Fang-jun,MAO Zhi-yong,LI Jin-wei.Influence of electron beam local heat treatment on low cycle fatigue properties of TC4 alloy joints[J].Transactions of Materials and Heat Treatment,2007,28(2):60-63. |
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| Authors: | FU Peng-fei LIU Fang-jun MAO Zhi-yong LI Jin-wei |
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| Affiliation: | Key Laboratory of High Energy Density Beam Processing Technology, Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China |
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| Abstract: | Ti-6Al-4V alloy plates after electron beam welding(EBW) were heat treated by electron beam local heat treatment(EBLHT).The fatigue specimens were machined from the joints and the low cycle fatigue tests were conducted on MTS 810 fatigue test machine.The influence of EBLHT on fatigue properties of the joint was studied.The results show that the EBW joints of TC4 alloy present cyclic softening,and the fatigue life of the joints after EBLHT increases by 30% compared with that of EBW joints. |
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| Keywords: | electron beam heat treatment TC4 titanium alloy low cycle fatigue |
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