Through Process Modelling from Casting to Mechanical Properties for Line Pipe Steels

通过管线钢从铸造到力学性能的过程建模

• 批准号: 1793436
• 金额: --
• 依托单位: University of Warwick
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1793436
• 关键词: Through; Process; Modelling; Casting; Mechanical

The final properties of hot rolled steel strip strongly depend on the full process history, due to complicated interactions of processes like segregation during solidification, grain growth during reheating (which depends on segregation) and recrystallization during rolling (which depends on segregation and grain size); the true worth of all currently available sub models for individual processes can only be assessed after integration into a through process model. For modern (high strength) steel grades requiring a complex mix of mechanical properties, like toughness and formability as well as strength, models based on average quantities (such as average grain size) are no longer sufficient. Instead 3D microstructure evolution and mechanical response models are required. Some of these 3D models have been developed in recent years but have not been combined into a through process model. Therefore most of the required building blocks of a sophisticated integrated model are available. This project will set up a physical 3D integrated through process model linking process variables to final product microstructure, specifically grain size distributions and hence toughness properties, in hot rolled line pipe grades. The project links to the EPSRC research area:Materials engineering - metals and alloys

热轧带钢的最终性能在很大程度上取决于整个工艺过程，这是由于凝固过程中的偏析、再加热过程中的晶粒长大等过程的复杂相互作用（这取决于偏析）和轧制过程中的再结晶（这取决于偏析和晶粒尺寸）;用于各个过程的所有当前可用的子模型的真正价值只能在集成到贯穿过程模型中之后进行评估。对于需要复杂的机械性能组合的现代（高强度）钢种，如韧性和可成形性以及强度，基于平均量（如平均晶粒尺寸）的模型不再足够。相反，需要3D微观结构演变和机械响应模型。这些3D模型中的一些近年来已经开发出来，但尚未组合成贯穿过程模型。因此，一个复杂的综合模型所需的大多数构件都是可用的。该项目将建立一个物理3D集成的过程模型，将过程变量与最终产品的微观结构联系起来，特别是热轧管线管等级的晶粒尺寸分布和韧性特性。该项目链接到EPSRC研究领域：材料工程-金属和合金