Periods of the stage of concentrated strain of specimens of low-carbon steel 08G2B with ultrafine structure are studied by joint analysis of stress–strain curves and fields of digital image correlation (DIC). The DIC data and detection of a through crack on the surface of a tensile specimen are used to justify the use of the parameters of the second period of the stage of concentrated strain as criteria of crack resistance. Experimental data are used to determine the main factors representing the influence of strain aging on the level of mechanical properties of the steel.

中文翻译：

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应变时效对 08G2B 钢试样塑性应变阶段和拉伸断裂阶段的影响。第二部分。集中应变阶段

通过应力-应变曲线和数字图像相关(DIC)场的联合分析，研究了超细结构低碳钢08G2B试样集中应变阶段的周期。拉伸试样表面上的 DIC 数据和贯穿裂纹的检测用于证明使用集中应变阶段第二阶段的参数作为抗裂性标准的合理性。实验数据用于确定代表应变时效对钢的机械性能水平影响的主要因素。