A time-temperature-transformation (TTT) diagram has been constructed using dilation results. The phase transformations have been confirmed through microstructural changes of AISI 1010 steel. The strength of this steel has been improved for various applications using heat treatments. Experiments for a series of steel samples have been conducted between 310- 730°C isothermal temperature range using a thermo-mechanical simulator Gleeble^®3800. The austenitised microstructure of the steel has been transformed into a combination of ferrite, pearlite, widmanstätten ferrite, massive ferrite, upper and lower bainite, and martensite, etc., when held at different isothermal temperatures. Ferrite along with pearlite have been observed at higher isothermal temperatures while bainite with martensite have been observed at lower isothermal temperatures. Two C-curves have been observed in pearlite and bainite transformation regions.

中文翻译：

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基于膨胀测量结果和 AISI 1010 钢的显微组织演变建立时间-温度-转变图

使用膨胀结果构建了时间-温度-转换 (TTT) 图。相变已通过 AISI 1010 钢的显微组织变化得到证实。这种钢的强度已经通过热处理提高了各种应用。使用热机械模拟器 Gleeble ^®在 310-730°C 等温温度范围内对一系列钢样品进行了实验3800.钢的奥氏体组织在不同的等温温度下，已转变为铁素体、珠光体、widmanstätten铁素体、块状铁素体、上下贝氏体、马氏体等的组合。在较高等温温度下观察到铁素体和珠光体，而在较低等温温度下观察到贝氏体和马氏体。在珠光体和贝氏体转变区观察到两条 C 曲线。