| TC11/TC17钛合金线性摩擦焊接头组织与性能 |
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| 引用本文： | 季亚娟,张田仓,李晓红. TC11/TC17钛合金线性摩擦焊接头组织与性能[J]. 航空制造技术, 2011, 0(8) |
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| 作者姓名： | 季亚娟 张田仓 李晓红 |
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| 作者单位： | 中航工业北京航空制造工程研究所 |
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| 摘 要： | 针对航空发动机钛合金整体叶盘的典型材料TC11和TC17开展对异种钛合金线性摩擦焊的研究,其中包括飞边形貌、接头组织及拉伸性能等.研究结果表明:TC11/TC17异种钛合金线性摩擦焊沿振动方向的飞边较长;焊接接头明显分为3个区域:母材、热机械影响区和焊缝区,其中TC11母材为双态组织、TC17母材为网篮组织、热机械影响区的组织沿着受力方向被拉长,焊缝发生了动态再结晶,组织为等轴晶.拉伸测试结果表明:接头的抗拉强度及屈服强度能达到与TC11等强,拉伸试样均断在TC11母材一侧,随着测试温度提高,强度呈线性下降趋势;而断面收缩率均超过TC17母材,随着测试温度提高,变化不明显.
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| 关 键 词： | 线性摩擦焊 钛合金 组织 性能 |
Structure and Mechanical Property of TC11/TC17 Linear Friction Welding Joint |
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| Ji Yajuan,Zhang Tiancang,Li Xiaohong. Structure and Mechanical Property of TC11/TC17 Linear Friction Welding Joint[J]. Aeronautical Manufacturing Technology, 2011, 0(8) |
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| Authors: | Ji Yajuan Zhang Tiancang Li Xiaohong |
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| Abstract: | The linear friction welding(LFW) process of dissimilar titanium alloys used in aeroengine blisks made of,TC11 is TC17,is studied.The joints morphology,microstructure and tensile properties are observed and tested.The welding flash of TC11/TC17 LFW joint is longer along the oscillating direction than that along the non-oscillating direction.The joints include three apparent zones,base metal (BM),thermal-mechanical affected zone (TMAZ) and welding zone (W).The TMAZ microstructure are elongated along the stres... |
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| Keywords: | Linear friction welding Titanium alloy Microstructure Mechanical property |
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