Microstructural evolution and mechanical properties of TiB/2195 composites fabricated by ultrasonic-assisted in-situ casting.

The distribution and size of particles in particle-reinforced aluminum matrix composites are crucial to the mechanical properties of the composites. In this paper, 2 wt.% TiB/2195 composites were prepared by ultrasonic-assisted in-situ casting technology, and the samples' phase composition, microstructure, and mechanical properties were tested.

Effect of Ultrasonic-Assisted Casting on the Hydrogen and Lithium Content of Al-Li Alloy.

Dehydrogenation of the 2195 Al-Li alloy was accomplished using argon degassing, ultrasonic degassing, and vacuum degassing. The concentration of hydrogen, its microstructure, and its mechanical characteristics were all investigated. The hydrogen content in the 2195 Al-Li alloy is high.

The cavitation erosion of ultrasonic sonotrode during large-scale metallic casting: Experiment and simulation.

Ultrasonic sonotrodes play an essential role in transmitting power ultrasound into the large-scale metallic casting. However, cavitation erosion considerably impairs the in-service performance of ultrasonic sonotrodes, leading to marginal microstructural refinement. In this work, the cavitation erosion behaviour of ultrasonic sonotrodes in large-scale castings was explored using the industry-level experiments of Al alloy cylindrical ingots (i.