Enhanced diffusion and phase transformations during ultrasonic welding of zinc and aluminum
Enhanced diffusion and phase transformations during ultrasonic welding of zinc and aluminum
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DOI：
10.1016/j.scriptamat.2004.12.015
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发表时间：
2005-05-01
影响因子：
6
通讯作者：
Doumanidis, CC
中科院分区：
文献类型：
--
作者：
Gunduz, IE;Ando, T;Doumanidis, CC
研究了铝与锌的高温（513 K）超声波焊接。该界面表现出表明 Al-Zn 固溶体相互扩散增强和局部熔化的结构。 EDS 分析得出的相互扩散率为 1.9 mum(2)/s。增强的扩散和熔化可归因于铝中的高应变率（类似于10（3）s（-1））塑性变形，这可能会增加瞬时空位浓度高达类似于10（-1）。 (C) 2005 Acta Materialia Inc. 由 Elsevier Ltd 出版。保留所有权利。
Elevated-temperature (513 K) ultrasonic welding of aluminum with zinc was investigated. The interface exhibits structures indicative of enhanced interdiffusion and local melting of Al-Zn solid solution. EDS analysis yielded an interdiffusivity value of 1.9 mum(2)/s. The enhanced diffusion and melting can be attributed to high strain rate (similar to10(3) s(-1)) plastic deformation in aluminum, which may increase the instantaneous vacancy concentration as high as similar to10(-1). (C) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.