Mechanical response and microstructure evolution of SiC particle-reinforced Al-MMCs under ultrasonic loading
High volume fraction(≥45 vol%) SiC particle-reinforced Al matrix composites are difficult for forming and manufacture. A simple and efficient method is proposed in this research to realize rapid plastic deformation at room temperature. By applying ultrasonic load to the composites, 40% compressive strain is obtained within 1 s, while the stress is only 59 MPa, about 1/10 of its compressive strength. Ultrasonic loading can produce a high instantaneous strain rate (up to 10 s) and a high-frequency (20000 Hz) cyclic load compared with conventional loading. The stress superposition and relief effects produced by ultrasonic loading lead to the diffusion and annihilation of dislocation in the Al matrix, the dispersion, and the plastic deformation of SiC particles. The microstructure evolution reduces the accumulation of dislocation, promotes the formation of sub-grain, weakens the deformation texture, and improves the synergetic deformation of Al and SiC.
Booz Allen Foundation[P2022-A-IV-002-002];Booz Allen Foundation[U1737201];
|WOS Research Area|
Engineering ; Materials Science
Engineering, Manufacturing ; Materials Science, Composites
|WOS Accession No|
|ESI Research Field|
Cited Times [WOS]:1
|Document Type||Journal Article|
|Department||Institute for Manufacturing Innovation|
1.School of Mechanical Engineering and Automation,Beihang University,Beijing,100191,China
2.Ningbo Institute of Technology,Beihang University,Ningbo,315832,China
3.Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics,China
4.SUSTech Institute for Manufacturing Innovation,China
5.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China
Li，Qilin,Yuan，Songmei,Li，Zhen,et al. Mechanical response and microstructure evolution of SiC particle-reinforced Al-MMCs under ultrasonic loading[J]. Composites Part A: Applied Science and Manufacturing,2023,173.
Li，Qilin,Yuan，Songmei,Li，Zhen,Gao，Xiaoxing,&Chen，Bochuan.(2023).Mechanical response and microstructure evolution of SiC particle-reinforced Al-MMCs under ultrasonic loading.Composites Part A: Applied Science and Manufacturing,173.
Li，Qilin,et al."Mechanical response and microstructure evolution of SiC particle-reinforced Al-MMCs under ultrasonic loading".Composites Part A: Applied Science and Manufacturing 173(2023).
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