WC-Co(Ni,Fe)硬质合金比磁饱和的标记、单位和换算

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

在推证了铁磁材料的饱和磁化强度MS或饱和磁极化强度JS和磁饱和状态下的磁感应强度BS间的定量关系的基础上,得到了WC-Co(Ni,Fe)硬质合金的MS,BS和JS分别与合金密度ρ的比值即标称比磁饱和(通称"磁饱和")间的数值换算关系为: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(×10-7T.m3.kg-1)=4πσ(×10-7T.m3.kg-1)=4π.MS/ρ(A.m2.kg-1)=4πσ(A.m2.kg-1)。因此,采用σ(A.m2.kg-1,4π×10-7T.m3.kg-1)和4πσ(×10-7T.m3.kg-1,A.m2.kg-1)作为比磁饱和的标记和单位并恪守上述各磁学量的换算关系,能确保其中σ的绝对值与单位质量合金的磁矩值一致,并能对比磁饱和数值进行有效的评估和对比。

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.