"Enhanced diffusion and phase transformations during ultrasonic welding" by Ibrahim E. Gunduz, Teiichi Ando et al.
 

Enhanced diffusion and phase transformations during ultrasonic welding of zinc and aluminum

Document Type

Article

Publication Title

Scripta Materialia

Publication Date

5-1-2005

Abstract

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 μm2/s. The enhanced diffusion and melting can be attributed to high strain rate (∼103 s -1) plastic deformation in aluminum, which may increase the instantaneous vacancy concentration as high as ∼10-1. © 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Volume

52

Issue

9

First Page

939

Last Page

943

DOI

10.1016/j.scriptamat.2004.12.015

ISSN

13596462

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