The paper analyzes the nature of constant low-temperature impact toughness in low-carbon low-alloy 10Mn2VNbAl steel after helical rolling at 850°C. The analysis shows that when rolled, the steel changes the electronic spectrum via shifting its low-energy states in the reciprocal space of lattice curvature to higher levels which are vacant in the initial material. Such interstitial states provide the growth of interstitial bainite islands capable for adaptive rotations under shock loads, and this makes the rolled steel constant in low-temperature impact toughness up toT = –70°C.

中文翻译：

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用于马氏体相形成和低温韧性增强的低合金钢的纳米级介观结构状态

分析了低碳低合金10Mn2VNbAl钢850℃螺旋轧制后低温恒定冲击韧性的性质。分析表明，在轧制时，钢通过将其在晶格曲率倒易空间中的低能态转移到初始材料中空缺的更高能级来改变电子谱。这种间隙状态提供了能够在冲击载荷下自适应旋转的间隙贝氏体岛的生长，这使得轧制钢在高达 T = –70°C 的低温冲击韧性方面保持不变。