The influence of the initial structure parameters on formation of austenite grains under heat treatment of pearlitic spring steels is studied. Metallographic and x-ray diffraction analyses are performed. The structural characteristics of the austenite, i.e., the conventional grain diameter, the diversity of grain sizes, the nonequiaxed condition, the inhomogeneity, and the dislocation density, are determined. It is recommended to assign the austenitization temperature differentially depending on the initial structure of the steel.

中文翻译：

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初始组织对弹簧钢热处理形成的奥氏体特性的影响

研究了初始组织参数对珠光体弹簧钢热处理奥氏体晶粒形成的影响。进行金相和 X 射线衍射分析。确定了奥氏体的结构特征，即常规晶粒直径、晶粒尺寸的多样性、非等轴状态、不均匀性和位错密度。建议根据钢的初始结构不同地分配奥氏体化温度。