Mechanical response and microstructure evolution of SiC particle-reinforced Al-MMCs under ultrasonic loading

Li，Qilin1,2; Yuan，Songmei1,2; Li，Zhen3,4,5; Gao，Xiaoxing1,2; Chen，Bochuan1,2

2023-10-01

10.1016/j.compositesa.2023.107657

Composites Part A: Applied Science and Manufacturing   Impact Factor & Quartile

1359-835X

1878-5840

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.

A. Metal-matrix composites (MMCs) B. Microstructures D. Ultrasonics E. Forming

SCI

English

Others

Booz Allen Foundation[P2022-A-IV-002-002];Booz Allen Foundation[U1737201];

Engineering ; Materials Science

Engineering, Manufacturing ; Materials Science, Composites

WOS:001037143800001

ELSEVIER SCI LTD

MATERIALS SCIENCE

2-s2.0-85163174772

Scopus

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).