Influence of reaction synthesis feedstocks on solidification defect formation and microstructure-property relationships in electron beam freeform fabrication of aluminum metal matrix composites
High-strength wrought aluminum alloys are extensively used in aerospace and automotive applications for their high strength-to-weight ratios. Further improvements to properties, including specific modulus, can be achieved by the introduction of discontinuous particulates into the Al matrix, creating a metal matrix composite (MMC). The introduction of particulates can also minimize the propensity for solidification cracking that certain Al alloys possess as a result of large solidification temperature ranges and high coefficients of thermal expansion. To overcome the limitations of conventional ...
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