Investigation of the Influence of Ultrasound Action on Diffusion Processes in an Explosion-Welded Bimetal System Cu-Al during Heat Treatment

Abstract:

The influence of ultrasound on the main regularities of the formation and growth of the diffusion zone at the interlayer boundary of an explosion-welded layered composite material of Al-Cu systems is investigated. It is proved that the effect of ultrasound contributes to the reduction of the latent period of the nucleation of intermetallic phases at the interlayer boundary, lowers the temperature of the beginning of the eutectic transformation (by about 10 ° C), but at the same time does not affect the phase composition of the diffusion zone as a result of homogeneous reactions at the boundary of contact of solids. It has been established that the thickness of the diffusion zone, with the duration of the supplied acoustic vibrations, ensures the absence of cracks in the diffusion zone, leading to delamination of the material, increases by 30-40% at a fixed temperature of intense diffusion.

• Periodical: Defect and Diffusion Forum (Volume 410)
• Pages: 306-312
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.410.306
• Online since: August 2021
• Authors: Oleg V. Slautin, Dmitriy V. Pronichev*, Evgeniy V. Kuz’min
• Keywords: Cu-Al Intermetallic Compounds, Explosion Welding, Microhardness, Ultrasonic Treatment

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