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本文简要地介绍了回火内标法测定钢中残余奥氏体量的基本状况,用计算修正量的方法着重分析了碳化物及实验回火过程中相组织变化对实验结果的影响,并以GCr15及W18Cr4V两钢种为例作了具体的分析计算。
In this paper, the basic condition of tempering internal austenite in steel is briefly introduced. The influence of the microstructure and phase change during the tempering process on the experimental results is analyzed emphatically with the method of calculating the amount of correction. GCr15 and W18Cr4V two steel as an example for a specific analysis and calculation.