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17-08-2024

Effect of Different Ultrasonic Power on Microstructure and Mechanical Properties of ZL205A/TiB2 Composite Materials

Authors: Jingchuan Tang, Mohd Zaidi Omar, Ripeng Jiang, Intan Fadhlina Mohamed, Anqing Li

Published in: Metals and Materials International

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Abstract

High-energy ultrasound plays an important role in enhancing the uniform distribution of reinforcing particles inside the composites. In this work, the effect of different ultrasonic power (0–1000 W) on the solidification microstructure and mechanical properties of 2.0 wt% ZL205A/TiB2 composites was investigated. The experimental results show that, within a certain range, the increase of ultrasonic power can refine the grain size, reduce the TiB2 particle agglomeration, and enhance the mechanical properties of composites. The grain size was reduced from 93 μm (0 W) to 49 μm (800 W), and the tensile strength (UTS) was increased from 186.5 to 230.6 MPa, respectively, a relative increase of 47.3%. However, when the ultrasonic power reaches 1000 W, the microstructure of the composites is deteriorated, the grain size is coarse, and the mechanical properties are reduced. This indicates that high ultrasonic power is not conducive to the further optimization of composite microstructure. Based on the experimental results, the mechanisms of ultrasonic power on the microstructure of the composite materials have been discussed in detail. Furthermore, the quantitative relationships between ultrasonic power and sound pressure (P), the intensity density (I), the acoustic impulse velocity (v), and amplitude (A) was established, which played an important theoretical guidance role for the preparation of metal matrix composite materials during industrial application with ultrasonic treatment.

Graphical Abstract

The main objective of this work is to explore the changes in the microstructure and mechanical properties of ZL205A/TiB2 composite materials under the influence of different ultrasonic powers. The lattice matching relationship between TiB2 reinforcement particles and the aluminum matrix is revealed, and the changes in acoustic energy density, sound pressure intensity, and ultrasonic amplitude under different ultrasonic powers are quantitatively analyzed.

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Metadata
Title
Effect of Different Ultrasonic Power on Microstructure and Mechanical Properties of ZL205A/TiB2 Composite Materials
Authors
Jingchuan Tang
Mohd Zaidi Omar
Ripeng Jiang
Intan Fadhlina Mohamed
Anqing Li
Publication date
17-08-2024
Publisher
The Korean Institute of Metals and Materials
Published in
Metals and Materials International
Print ISSN: 1598-9623
Electronic ISSN: 2005-4149
DOI
https://doi.org/10.1007/s12540-024-01784-9

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