| 7715D高温钛合金的电子束焊接 |
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| 引用本文： | 杨尚磊,楼松年.7715D高温钛合金的电子束焊接[J].青岛科技大学学报,2008,29(6). |
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| 作者姓名： | 杨尚磊 楼松年 |
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| 作者单位： | [1]青岛科技大学材料科学与工程学院,山东青岛266042 [2]上海交通大学焊接工程研究所,上海200030 |
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| 摘 要： | 采用电子束焊接方法研究了7715D高温钛合金的焊接性能。焊接结果表明:焊接接头成形良好,焊接接头抗拉强度达到983 MPa,断口部位位于热影响区;焊缝和靠近焊缝的热影响区的显微组织均为典型的网篮状,母材显微组织为块状初生α相和β转变组织构成的双态组织。
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| 关 键 词： | 7715D钛合金 电子束焊接 显微组织 |
Electron Beam Welding of 7715D High Temperature Titanium Alloy |
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| Abstract: | The electron beam welding(EBW) properties of 7715D high temperature titanium alloy was investigated in this paper.The results of experimental works showed that the welded joint is smooth and has a tensile strength of joint of 983 MPa.It was found,however that the fracture is located in the heat affecting zone(HAZ).The microstructure of the welded joint and HAZ is the typcial basket-waved grain.The base metal has a bi-model microstructure consisted by α and β phases. |
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| Keywords: | 7715D titanium alloy electron beam welding microstructure |
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