Pulse-Impact on Microstructure of Liquid-Phase-Pulse-Impact Diffusion Welded Joints of Particle Reinforcement Aluminum Matrix Composites at Various TemperaturesReport as inadecuate




Pulse-Impact on Microstructure of Liquid-Phase-Pulse-Impact Diffusion Welded Joints of Particle Reinforcement Aluminum Matrix Composites at Various Temperatures - Download this document for free, or read online. Document in PDF available to download.

Investigation was to study the influence of pulse-impacton microstructure of Liquid-Phase-Pulse-Impact Diffusion Welding LPPIDWwelded joints of aluminum matrix composite SiCp-A356, SiCp-6061Al,Al2O3p-6061Al. Results showed that under the effect ofpulse-impact: 1 the interface state between reinforcement particle SiC, Al2O3and matrix was prominently; 2 the initial pernicious contact-state ofreinforcement particles was changed from reinforcement SiC, Al2O3-reinforcementSiC, Al2O3 to reinforcement SiC, Al2O3-matrix-reinforcement SiC, Al2O3; 3 the density ofdislocation in the matrix neighboring to and away from the interface in thematrix was higher than its parent composite; and 4 the intensivelymutual entwisting of dislocation was occurred. Studies illustrated that: 1deformation was mainly occurred in the matrix grain; and 2 under the effect ofpulse-impact, the matrices around reinforcement SiC, Al2O3particles engendered intensive aberration offered a high density nucleus areafor matrix crystal, which was in favor of forming nano-grains and improved theproperties of the successfully welded composite joints.

KEYWORDS

Aluminum Matrix Composite; Particle Reinforcement; Pulse-Impact; Microstructure; Diffusion Welding

Cite this paper

K. Guo -Pulse-Impact on Microstructure of Liquid-Phase-Pulse-Impact Diffusion Welded Joints of Particle Reinforcement Aluminum Matrix Composites at Various Temperatures,- Engineering, Vol. 5 No. 7, 2013, pp. 567-576. doi: 10.4236-eng.2013.57069.





Author: Kelvii Wei Guo

Source: http://www.scirp.org/



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