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首页> 外文期刊>Journal of manufacturing science and engineering: Transactions of the ASME >Investigation of Effect of Phase Transformations on Mechanical Behavior of AISI 1010 Steel in Laser Forming
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Investigation of Effect of Phase Transformations on Mechanical Behavior of AISI 1010 Steel in Laser Forming

机译：相变对AISI 1010钢激光成形力学行为影响的研究

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摘要

In laser forming, phase transformations in the heat affected zone take place under steep cooling rates and temperature gradients, and have a significant affect on the laser forming process and final mechanical properties of products. In this work, phase transformations during laser forming of AISI 1010 steel are experimentally and numerically investigated and the transient volume fraction of each available phase is calculated by coupling the thermal history from finite element analysis with a phase transformation kinetic model. Consequently, the flow stresses of material are obtained from the constitutive relationship of the phases, and the laser forming process is modeled considering the effect of work hardening, recrystallization and phase transformation. A series of carefully controlled experiments are also conducted to validate the theoretically predicted results.
机译：在激光成型中，热影响区中的相变在陡峭的冷却速率和温度梯度下发生，并且对激光成型过程和产品的最终机械性能产生重大影响。在这项工作中，对AISI 1010钢的激光成形过程中的相变进行了实验和数值研究，并且通过将有限元分析的热历史与相变动力学模型相结合，计算出每个可用相的瞬态体积分数。因此，从相的本构关系中获得了材料的流动应力，并考虑了加工硬化，再结晶和相变的影响对激光成形过程进行了建模。还进行了一系列精心控制的实验，以验证理论上的预测结果。

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