Isothermal and non-isothermal pearlite transformations under 840°C warm-rolled and 950°C hot-rolled were researched. It was found that the pearlite nuclei at grain boundary and defects were increased by warm deformation. The results showed that the incubation time was shortened in the isothermal pearlite transformation and the volume fraction of pearlite was increased in continuous cooling condition by warm deformation. The pearlite transformation behaviour under continuous cooling condition was predicted by the formula of Umemoto. The critical cooling rates of the fully pearlite structures formed under warm deformation condition and hot deformation condition were calculated.

中文翻译：

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1.0C-1.5Cr钢温轧强化珠光体转变

研究了840℃温轧和950℃热轧下的等温和非等温珠光体转变。发现晶界处的珠光体核和缺陷因温变形而增加。结果表明，在温变形连续冷却条件下，珠光体等温相变的孵化时间缩短，珠光体体积分数增加。连续冷却条件下珠光体转变行为由Umemoto公式预测。计算了温变形条件和热变形条件下形成的全珠光体组织的临界冷却速率。