Abstract This article deals with the numerical simulation of quenching in low alloy steels based on finite element method adapting the effect of stress on the martensitic transformation to predict temperature history, microstructure evolution, and internal stresses. By superimposing the cooling curves of selected points on the CCT diagram of 1045 steel, verification of the simulated microstructures in the cylindrical specimen are carried out by comparing it with the micrographs of microstructures. Afterward, steel gears are treated in two cooling mediums to predict volume changes of gear samples quenched in oil and water. A comparison of the experimental results with those of numerical simulation generates an overall good agreement and indicates the well-demonstrated predictive capability of the model associated with kinetics of phase transformation, thermo-physical properties, and latent heat release for real-time quenching applications.

中文翻译：

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预测 1045 钢淬火过程中组织演变和残余应力的数值模型耦合相变

摘要 本文讨论了基于有限元方法的低合金钢淬火数值模拟，该方法适应应力对马氏体转变的影响，以预测温度历程、组织演变和内应力。通过将选定点的冷却曲线叠加在1045钢的CCT图上，通过与显微组织显微照片的对比，对圆柱试样中的模拟显微组织进行验证。然后，钢齿轮在两种冷却介质中进行处理，以预测在油和水中淬火的齿轮样品的体积变化。