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The modification and refinement of surface and subsurface microstructure in Al-Si-based cast alloys via laser-induced rapid solidification can create a natural topography suitable for engine applications. The differential wear of the soft aluminum phase, hard silicon, and CuAl in the cell, along with the divorced eutectic nanostructure in the intercellular region, is expected to produce and replenish...
Cast A319 Al alloy, which is a popular choice for automobile engine cylinder block material, has been limited in that use by its poor tribological properties. Various techniques have been explored to address this problem, including the one addressed in this study, laser surface engineering (LSE.) Engine cylinders made of A319 Al alloy were LSE coated with FeO. The region of coating produced a refined...
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