Functional graded materials (FGM) are a class of materials with engineered continuous compositional gradients through the plate thickness. This work applies the netSEM approach on an aluminum FGM, produced via sequential alloy casting using planar solidification, to quantify the < Processing | Microstructure | Performance > relationships. The material has a continuous gradient in zinc (Zn) and magnesium (Mg) concentrations through the plate thickness. This subsequently produces a gradient in strengthening mechanisms from a dominant precipitate-strengthened aluminum alloy (AA) (Zn-based AA-7055) to a dominant strain-hardenable aluminum alloy (Mg-based AA-5456). Therefore, the material is simultaneously strengthened via solid solution strengthening and precipitation strengthening.
A data frame with 72 rows and 6 variables:
the compositional gradient (z-direction)
the element Zinc
the element Magnesium
Amit K. Verma, Roger H. French, Jennifer L. W. Carter
Solar Durability and Lifetime Extension (SDLE) Research Center, Case Western Reserve University
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