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Modeling the Behaviour of Oxide Scale in Hot Rolling

机译：对热轧中氧化皮行为的建模

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Oxide scale behaviour in thermomechanical processing has been the subject of intensive research for several years that allowed development of a finite element (FE) based model to simulate a range of events of relevance to the process and to the surface quality of the hot rolled product. Oxide scale failure is predicted taking into account the main physical phenomena such as stress-directed diffusion, fracture and adhesion of the oxide scale, strain, strain rate and temperature. The most critical parameters for scale failure are measured during modified hot tensile testing and depend on the morphology of the particular oxide scale, scale growth temperature, and are also very sensitive to the chemical composition of the underlying metal. The work integrates finite element analysis with a range of experiments each to provide partial insight into oxide fracture, friction, heat transfer, pick-up and descaling, amongst others. An overview of this research is presented, revealing a variety of phenomena of considerable technological importance.
机译：多年来，热机械加工中的氧化皮行为一直是深入研究的主题，它允许开发基于有限元（FE）的模型来模拟与热轧产品的过程和表面质量相关的一系列事件。考虑到主要的物理现象，例如应力导向的扩散，氧化皮的断裂和粘附，应变，应变速率和温度，可以预测氧化皮的破坏。氧化皮破坏的最关键参数是在改进的热拉伸测试过程中测量的，并且取决于特定氧化物氧化皮的形貌，氧化皮生长温度，并且对底层金属的化学组成也非常敏感。这项工作将有限元分析与一系列实验结合在一起，以提供对氧化物断裂，摩擦，传热，拾取和除垢等方面的部分了解。介绍了这项研究的概述，揭示了各种具有相当技术重要性的现象。

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