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Abstract

It is often suggested that splitting a specimen and machining grid lines on one of the exposed planes to study flow patterns during plastic deformation interferes with the flow process under investigation. A procedure is described here for flow-function analysis of extrusion specimens in which artificial grid lines are not required. The procedure is restricted to situations in which the microstructure exhibits line segments produced by deforming grains or second-phase particles as they flow through the die. These segments represent partial-flow lines according to the assumptions of flow-function analysis. From numerical analysis of their slopes it is possible to construct the complete flow function. From this, all the kinematic quantities of the deformation can be determined.

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Use of microstructure for visioplasticity analysis

Abstract

Abstract

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References