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

• Published in: Scripta materialia Vol. 52; no. 9; pp. 939 - 943
• Main Authors: Gunduz, Ibrahim E., Ando, Teiichi, Shattuck, Emily, Wong, Peter Y., Doumanidis, Charalabos C.
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Ltd 01.05.2005; Elsevier Science
• Subjects: Applied sciences; Enhanced diffusion; Exact sciences and technology; Excess vacancy; High strain rate deformation; Metals. Metallurgy; Phase stability; Ultrasonic welding; Ultrasonic welding; Phase stability; Enhanced diffusion; High strain rate deformation; Excess vacancy; Phase transformation; Deformation; Stability; High speed; Diffusion; Strain rate

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 μm 2/s. The enhanced diffusion and melting...