Yf = Ke^n
Yf = Flow stress, MPa K = Strength Coefficient, MPa n = Strain hardening exponent
Hence, Flow stress can also be 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 .
a) Chemical composition
c) Crystal structure
d) Phase constitution
e) Exit microstructure
f) Grain size
g) Heat treatment state
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