γ相磁性分析法是基于WC-Co硬质合金的磁性源自合金中γ粘结相的磁性, 通过理论计算结合试验数据分析得到了γ相比饱和磁矩与γ相中钨和碳溶质质量分数的数值关系, 以及合金的比饱和磁矩和密度分别与合金的钴含量或碳含量的数值关系。结果表明: 钨和碳溶质分别降低和提高γ相的比饱和磁矩; 除石墨相区内比饱和磁矩与合金的钴含量存在正比关系外, WC-Co合金的比饱和磁矩和密度分别与合金的钴含量或碳含量间均不存在一一对应关系, 兼用合金的比饱和磁矩和密度测定值能确定WC-Co硬质合金材料成分的平均值。讨论了相关磁学测定量的物理意义。

The numerical relationship of the specific saturation magnetic moment σγ of γ-phase with the wolfram solubility WγW and the carbon solubility WγC in γ-phase, and the numerical relationship of the specific saturation magnetic moment σ, the density ρ of WC-Co alloy with the cobalt content WCo or the carbon content WC in the alloy were deduced by means of theoretical analysis and experimental datum calculation based on the magnetism of the alloy was of the γ-phase magnetism origin i.e. the γ-phase magnetism analytics method. The results showed that, the specific saturation magnetic moment σγ of γ-phase could be raised by carbon solute and reduced by wolfram solute respectively. There was no one to one correspondence of the specific saturation magnetic moment σ (or the saturation magnetization MS) and the density ρ with the cobalt content WCo or carbon content WC in WC-Co alloy respectively, except for the direct proportion relationship of σ with WCo in graphite composition region. The composition average value in WC-Co alloy could be decided exactly with both the measured specific saturation magnetic moment σ and the density ρ values of the alloy.The physical meaning of the related magnetic measurands were discussed.