Modelling the microstructure evolution during hot working of Ti alloys

钛合金具有无与伦比的强度重量比，是航空航天工业不可缺少的材料。它们在现代飞机中被广泛使用，应用范围从框架结构到喷气发动机部件。然而，钛合金是非常复杂的，在零件的加工和制造过程中，含有明显变化的分层组织。这种复杂性使得它们的行为很难预测，并迫使制造商严重依赖通过反复试验开发的加工路线。因此，与更成熟的钢和铝合金相比，钛冶金仍处于初级阶段。该博士项目是Lightform(lightform.org.uk)更大的研究工作的一部分，旨在开发新的模型来预测这些重要合金在高温加工过程中微观结构的演变。这个更大的项目将空中客车和劳斯莱斯等钛合金的最终用户与TIMET和Aubert&Duval等材料生产商和制造商聚集在一起，朝着开发新的预测工具的共同目标前进，以指导和加速工艺和合金开发

Given their unrivalled strength-to-weight ratio, titanium (Ti) alloys are indispensable to the aerospace industry. They are used extensively in the modern aircraft, with applications ranging from frame structures to jet engine components. However, Ti alloys are very complex, containing hierarchical microstructures which change dramatically during the processing and manufacturing of components. This complexity makes their behaviour difficult to predict and forces manufacturers to rely heavily on processing routes that have been developed through trial and error. As a result, compared to more mature steel and aluminium alloys, Ti metallurgy is still in its nascent stages of development. This PhD project is part of a larger research effort in LightForm (lightform.org.uk) that aims to develop new models to predict how the microstructure evolves in these important alloys during processing at high temperatures. This larger project brings together end users of Ti alloys, like Airbus and Rolls-Royce, with material producers and manufactures like TIMET and Aubert & Duval, towards the common goal of developing new predictive tools to guide and accelerate process and alloy development