The hot deformation behavior and processing characteristics of AZ91 alloy and nano-SiCp/AZ91 composite were compared at temperature ranges of 523 K-673 K and strain rates of 0.001-1 s-1. Positive impact of SiC nanoparticles on pinning grain boundaries and inhibiting grain growth was not obvious when deformation temperature was below 623 K, but was remarkable when the temperature was above 623 K...

Investigation was to study the influence of pulse-impact on microstructure of Liquid-Phase-Pulse-Impact Diffusion Welding (LPPIDW) welded joints of aluminum matrix composite SiCp/A356, SiCp/6061Al, Al2O3p/6061Al. Results showed that under the effect of pulse-impact: 1) the interface state between reinforcement particle (SiC, Al2O3) and matrix was prominently; 2) the initial pernicious contact-s...

It is one of the future trends to create materials in situ by laser additive manufacturing. AlSi7Mg/nano-SiCp composites were successfully prepared selective melting our previous study. After adding 2 wt% nano-SiC particles, tensile stress and strain increased 502.94 ± 6.40 MPa 10.64 1.06%, respectively. For first time present study, we systematically studied compared wear performance corrosion...

Directing at the hard machinability of high volume fraction 70% SiCp/Al composites, a longitudinal and torsional ultrasonic-assisted milling (LTUAM) method is proposed to improve edge quality machining efficiency. By observing metallographic structure material, three-dimensional (3D) finite element model random distribution spherical, elliptical polygonal SiC particles established analyzed by A...

In this paper, a finite element (FE) cutting model for particle-reinforced metal matrix composites (PRMMCs) considering material damage was developed to predict SiC particle failure, forces, and machined surface topography in SiCp/Al composite machining, analyze the dynamic mechanisms of chip formation failure evolution. The validity simulation verified by comparing results with forces obtained...