Browsing by Subject "aluminum F357"

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    Comparison of Multiple Heat Treatments by Observing Mechanical Properties and Microstructure of LPBF Fabricated Aluminum F357
    (2022) Diaz, J.; Caballero, K.; Medrano, V.A.; Arrieta, E.; Benedict, M.; Godfrey, D.; Wicker, R. B.; Medina, F.
    In this paper, Aluminum F357 (AlSi7Mg), a material which is widely used in the automotive, aerospace, and additive manufacturing industries, will be analyzed after performing several heat treatments to enhance the properties of the material. However, there is currently no standard for the usage and heat treating of F357 alloy; for that reason, ASTM F3318 standard will be followed for heat treating it. Having a comprehensive study on the performance of 3D-printed F357 benefits the automotive, military and aerospace industries due to the numerous casted components already in service and many becoming legacy components. This work presents mechanical and microstructural properties of F357 specimens fabricated with SLM technology and subjected to heat treatments; as-built, stress-relief, T6, hot isostatic pressing (HIP), and HIP+T6 heat treatments were applied. Furthermore, with the interest of the alloy performance in- service conditions, the specimens were subjected to artificial thermal aging.