Thermodynamic-mechanical modelling of the TRIP-/TWIP-effect in austenitic as-cast steels (C03)

奥氏体铸态钢 TRIP/TWIP 效应的热力学模型 (C03)

• 批准号: 77371294
• 金额: --
• 依托单位: Institut für Eisen- und Stahltechnologie
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/77371294?language=en
• 关键词: Thermodynamic; mechanical; modelling; TRIP; TWIP

The physical model, which is based on the rule of mixtures for the prediction of transformation-induced plasticity and twinning-induced plasticity effects in as-cast austenitic steels, will be extended. With the aid of the transformation-temperature diagrams, the strength and strain contributions due to the induced deformation mechanisms will be quantified. Finally, a thermodynamic-mechanical model will be developed which allows to predict the deformation-induced martensitic transformation, deformation twinning, and the mechanical properties of TRIP/TWIP steels.

基于混合物规则的铸态奥氏体钢相变诱发塑性和孪生诱发塑性预测的物理模型将被推广。借助相变-温度图，可以量化诱发变形机制对强度和应变的贡献。最后，建立了一个热力学-力学模型，用于预测TRIP/TWIP钢的形变诱发马氏体相变、形变孪晶和力学性能。