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静轴肩辅助铝镁搅拌摩擦搭接接头的组织与性能

许志武 李政玮 冯艳 闫久春

许志武, 李政玮, 冯艳, 闫久春. 静轴肩辅助铝镁搅拌摩擦搭接接头的组织与性能[J]. 焊接学报, 2017, 38(4): 1-6. doi: 10.12073/j.hjxb.20170401
引用本文: 许志武, 李政玮, 冯艳, 闫久春. 静轴肩辅助铝镁搅拌摩擦搭接接头的组织与性能[J]. 焊接学报, 2017, 38(4): 1-6. doi: 10.12073/j.hjxb.20170401
XU Zhiwu, LI Zhengwei, FENG Yan, YAN Jiuchun. Microstructure and mechanical properties of Mg/Al friction stir lap welding joint assisted by stationary shoulder[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 1-6. doi: 10.12073/j.hjxb.20170401
Citation: XU Zhiwu, LI Zhengwei, FENG Yan, YAN Jiuchun. Microstructure and mechanical properties of Mg/Al friction stir lap welding joint assisted by stationary shoulder[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 1-6. doi: 10.12073/j.hjxb.20170401

静轴肩辅助铝镁搅拌摩擦搭接接头的组织与性能

doi: 10.12073/j.hjxb.20170401
基金项目: 国家自然科学基金资助项目(51204111)

Microstructure and mechanical properties of Mg/Al friction stir lap welding joint assisted by stationary shoulder

  • 摘要: 文中将静止轴肩技术应用到铝镁异种合金的搅拌摩擦搭接过程中,并分析了焊接速度对接头成形和力学性能的影响.结果表明,静止轴肩能够增强上下板之间的材料交换,焊后搅拌区呈较大的洋葱环形貌,其内部分布大量的金属间化合物;搭接面处发生良好的冶金结合.由于生成金属间化合物,洋葱环区域的显微硬度值明显高于接头其它区域.X射线衍射结果表明,金属间化合物的主要成分是Al3Mg2和Al12Mg17.接头的抗拉强度随着焊接速度的增加呈先上升后下降的趋势,最大值在焊接速度为40 mm/min时取得.
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  • 收稿日期:  2016-10-29

静轴肩辅助铝镁搅拌摩擦搭接接头的组织与性能

doi: 10.12073/j.hjxb.20170401
    基金项目:  国家自然科学基金资助项目(51204111)

摘要: 文中将静止轴肩技术应用到铝镁异种合金的搅拌摩擦搭接过程中,并分析了焊接速度对接头成形和力学性能的影响.结果表明,静止轴肩能够增强上下板之间的材料交换,焊后搅拌区呈较大的洋葱环形貌,其内部分布大量的金属间化合物;搭接面处发生良好的冶金结合.由于生成金属间化合物,洋葱环区域的显微硬度值明显高于接头其它区域.X射线衍射结果表明,金属间化合物的主要成分是Al3Mg2和Al12Mg17.接头的抗拉强度随着焊接速度的增加呈先上升后下降的趋势,最大值在焊接速度为40 mm/min时取得.

English Abstract

许志武, 李政玮, 冯艳, 闫久春. 静轴肩辅助铝镁搅拌摩擦搭接接头的组织与性能[J]. 焊接学报, 2017, 38(4): 1-6. doi: 10.12073/j.hjxb.20170401
引用本文: 许志武, 李政玮, 冯艳, 闫久春. 静轴肩辅助铝镁搅拌摩擦搭接接头的组织与性能[J]. 焊接学报, 2017, 38(4): 1-6. doi: 10.12073/j.hjxb.20170401
XU Zhiwu, LI Zhengwei, FENG Yan, YAN Jiuchun. Microstructure and mechanical properties of Mg/Al friction stir lap welding joint assisted by stationary shoulder[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 1-6. doi: 10.12073/j.hjxb.20170401
Citation: XU Zhiwu, LI Zhengwei, FENG Yan, YAN Jiuchun. Microstructure and mechanical properties of Mg/Al friction stir lap welding joint assisted by stationary shoulder[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 1-6. doi: 10.12073/j.hjxb.20170401
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