Constitutive modeling of the deformation and phase transition mechanisms in partially stabilized ZrO2 ceramics as well as of the thermomechanical response of ceramic-steel composites (C04)

部分稳定 ZrO2 陶瓷的变形和相变机制以及陶瓷-钢复合材料 (C04) 热机械响应的本构模型

• 批准号: 77371360
• 金额: --
• 依托单位: Institut für Mechanik und Fluiddynamik
• 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/77371360?language=en
• 关键词: Constitutive; modeling; deformation; phase; transition

Stress induced martensitic phase transitions in zirconia have a major contribution to the overall thermomechanical response of TRIP-steel-ZrO2-composites. The aim of this project is to gain insight into the involved phase transitions on all length scales and to use these findings for the development of a constitutive law for cast TRIP-steel-ZrO2-composites. To this end we use methods from phenomenological continuum modelling, homogenization theory as well as phase field models based on Landau-Ginzburg theory in order to directly simulate the formation of microstructures.

应力诱导的马氏体相变在氧化锆有一个主要的贡献TRIP-钢-ZrO 2-复合材料的整体热机械响应。该项目的目的是深入了解所涉及的相变在所有的长度尺度，并使用这些研究结果为铸造TRIP钢-ZrO 2-复合材料的本构关系的发展。为此，我们使用的方法，从现象学连续建模，均匀化理论以及相场模型的基础上朗道-金兹伯格理论，以直接模拟形成的微观结构。