异种状态TC4 钛合金电子束焊接性能分析

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异种状态TC4 钛合金电子束焊接性能分析
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作者单位:中国运载火箭技术研究
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中图分类号:TG406
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摘要:

针对相对疏松的铸造钛合金和相对密实的锻造钛合金的焊接问题,开展了两种状态的TC4 钛合

金电子束焊接工艺研究,对比了不同焊接参数对焊接质量的影响。研究结果表明,采用方波扫描可以较好地实

现铸造钛合金与锻造钛合金的连接,焊缝成形良好,内部无缺陷;焊接接头力学性能分析表明,拉伸断裂位置全

部在铸件母材区一侧。实焊结果证明,电子束焊接可以实现异种状态TC4 钛合金焊接的工程化应用。

Abstract:

In order to investigate the welding property of relatively loose casted and comparatively dense鄄grained

forged TC4 ,the electron beam weld processing of two states of TC4 alloy plates was studied. The influence of different

scanning wave form on the weld seam formation was also analyzed. The results show that, with different scanning wave

forms, the cross section appearances of the weld seam of the casted and forged TC4 are all shaped. And there was also

no oxidation in the joint. The tensile property testing of welded joint indicated that the fracture of joint was in the side

of casted TC4. It was shown that welding structure of different states TC4 on the engineering application could be a鄄

chieved by electron beam weld.

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陈新民耿雅辉何迎春张益坤顾摇皞.异种状态TC4 钛合金电子束焊接性能分析[J].宇航材料工艺,2016,46(2).

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在线发布日期: 2016-11-28
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