Flow stress

Flow stress is defined as a specific value of the shear stress indicating the strength of a certain material. The flow stress value indicates the stress required to cause plastic deformation in a solid.

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Flow stress is also defined as the stress required to sustain plastic deformation at a particular strain.

The flow stress is a function of plastic strain.

Metal Properties that have an effect on flow stress ^[1].

a) Chemical composition

b) Purity

c) Crystal structure

d) Phase constitution

e) Exit microstructure

f) Grain size

g) Heat treatment state

References