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8 September 1999 Microstructure of a laser-surface-melted SiC-particle-reinforced aluminum metal matrix composite
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Proceedings Volume 3862, 1999 International Conference on Industrial Lasers; (1999) https://doi.org/10.1117/12.361123
Event: International Symposium on Industrial Lasers, 1999, Wuhan, China
Abstract
A SiC particle reinforced aluminum matrix composite (SiCp/Al composite) is melted by a high power continuous wave CO2 laser. Microstructure of the laser melted SiCp/Al MMC is studied as functions of laser processing parameters. The silicon carbide particles are completely dissolved during laser surface melting and aluminum silicon carbide Al4SiC4, aluminum carbide Al4C3, and primary silicon particles are produced in the laser melted surface. The size and volume fraction of the newly formed phases depend on the processing conditions. The relative volume fraction of Al4SiC4 to Al4C3 is strongly dependent on the laser linear energy density, a higher linear energy density leading to more Al4SiC4 formation. Result of anodic polarization corrosion test indicates that the corrosion resistance of the SiCp/Al MMC is not improved after laser surface melting.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Shaban, Wen Q. Hong, L. G. Yu, and Hua Ming Wang "Microstructure of a laser-surface-melted SiC-particle-reinforced aluminum metal matrix composite", Proc. SPIE 3862, 1999 International Conference on Industrial Lasers, (8 September 1999); https://doi.org/10.1117/12.361123
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