The theory of work hardening in stage IV depends on the relation between the relative misorientation Psi of neighbouring subgrains and the plastic strain gamma (Psi = B gamma exp). The value of the constant B is suggested to be better related to the sub grain size L when the estimated value is of correct order of magnitude.
Reference:
Nabarro, FRN. 1994. Coefficient of work-hardening in stage-IV. Scripta Metallurgica et Materialia, vol. 30(8), pp 1085-1087
Nabarro, F. (1994). Coefficient of work-hardening in stage-IV. http://hdl.handle.net/10204/2079
Nabarro, FRN "Coefficient of work-hardening in stage-IV." (1994) http://hdl.handle.net/10204/2079
Nabarro F. Coefficient of work-hardening in stage-IV. 1994; http://hdl.handle.net/10204/2079.