采用电化学方法将合金基体溶解以提取足够的碳氮化物残留物，然后将渗碳体和微合金碳氮化物进行相分离。渗碳体和微合金碳氮化物的成分最终通过电感耦合等离子体原子发射光谱（ICP-AES）进行定量分析，微合金碳氮化物的粒度分布则通过小角度X射线散射（SAXS）测量。电压为40kV，电流为40mA。具体操作遵循国标GB/T 13221和ISO 13762的操作规范。

The alloy substrate was dissolved by electrochemical method to extract sufficient carbonitride residues, and then the cementite and microalloy carbonitride were separated by phase. The composition of cementite and microalloy carbonitides was quantitatively analyzed by inductively coupled plasma atomic emission spectrometry (ICP-AES), and the particle size distribution of microalloy carbonitides was measured by small Angle X-ray scattering (SAXS). The voltage is 40kV and the current is 40mA. For details, comply with GB/T 13221 and ISO 13762.