Maximum Magnetic Permeability of Magnetically Hard Steel and the Limiting Hysteresis Loop

摘要

The proposed formula relates the maximum magnetic permeability μ_m of magnetically hard steel to its coercive force and residual magnetization. The calculation results may be used in nondestructive quality assessment of heat treatment and in magnetic structural analysis of steel, instead of the measurement of μ_m, which is laborious and less precise,