Abstract

Metallographic studies of annealed medium-carbon steels (45, 40Kh, and 35KhGSA) showed that there is low-temperature peritectoid carbide transformation of pearlite of these steels, in which solid solutions of ferrite and cementite form solid solution with a broad homogeneity range on the basis of ε-carbide Fe₂C. It was suggested to plot the horizontal line of peritectoid transformation at the temperature of 382°C and the horizontal line of peritectoid transformation of cementite at 1650°C on the Fe–C diagram of state.

中文翻译：

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中碳钢珠光体中的低温碳化物转变

摘要

对退火的中碳钢（45、40Kh和35KhGSA）的金相研究表明，这些钢的珠光体存在低温蠕变碳化物相变，其中铁素体和渗碳体的固溶体形成了均匀范围较宽的固溶体。根据ε-碳化物Fe ₂ C的理论基础，建议在Fe–C状态图上绘制在382°C的温度下的蠕变转变的水平线和在1650°C的渗碳体的蠕变转变的水平线。