Symbol, Unit and Conversion for Specific Magnetic Saturation of WC-Co(Ni，Fe) Cemented Carbides

The symbol, the unit and the following quantitative relationships between the nominal specific saturation magnetizations (were generally known as “magnetic saturation”) corresponding respectively to the ratios between MS,JS and BS with the density ρ of WC-Co (Ni,Fe) cemented carbides were obtained on the basis of the numerical value relationships between the saturation magnetization MS, the saturation magnetic polarization JS and the magnetic induction BS corresponding to magnetic saturation condition of ferromagnetic material were deduced:BS/ρ(T·m3·kg-1)=JS/ρ(T·m3·kg-1)=μ0·MS/ρ (A·m2 ·kg-1)=μ0σ(A·m2· kg-1)，JS/ρ (4π×10-7T·m3·kg-1)=σ(4π×10-7T·m3·kg-1)=MS/ρ(A·m2 ·kg-1)=σ(A·m2· kg-1)，BS/ρ(×10-7 T·m3·kg-1)=4πσ (×10-7 T·m3·kg-1)=4π·MS/ρ( A·m2 ·kg-1)=4πσ(A·m2· kg-1). The σ value equivalent to the magnetic moment per unit wt of WC-Co (Ni,Fe) alloy can be insured sufficiently and the magnetic saturation values furnished by different literatures can be compared and assessed effectively if the above-mentioned symbols and units σ (A·m2· kg-1，4π×10-7T·m3·kg-1) and 4πσ (×10-7 T·m3·kg-1，A·m2· kg-1) as well as the above-mentioned conversion relationships can be complied with and carried out strictly.