Texture and Formability of Alloy 5182-O SheetThursday (09.11.2017) 10:35 - 10:55 Part of:
The microstructure (grain size and texture) largely determine the flow behavior during forming of aluminum sheet products. A series of alloy 5182-O sheet samples were produced with a wide variety of grain structures and crystallographic textures. Tensile tests were performed in the longitudinal (0°), 45°, and transverse (90°) directions and standard uniaxial properties and complete flow curves were recorded. Values of “n” and “r” were calculated to represent the work hardening and thinning behavior. The yield point elongation (YPE) values and strength were sensitive to the grain size of the sheet while texture correlated strongly with the differences in r-value. The tensile curves and texture components were used as input to a visco-plastic self-consistent (VPSC) model. Predictions from the model were compared with actual r-value and formability results.
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