Advanced Processing of a Near Beta Titanium Alloy

钛合金具有高的比强度和优异的耐腐蚀性，在航空航天、化工、生物医学等领域得到了广泛的应用。对于下一代更轻、更节能的飞机结构，在机身、转向架横梁、襟翼轨道、机舱、塔架和起落架齿轮组件中使用高强度近β钛合金，从减轻重量和机械性能的角度来看，将比工业主力钛-6Al-4V更具成本效益，钛-6Al-4V是使用最广泛的α+β合金。空中客车和波音等主要航空制造商已经开始使用锻造的近β钛合金作为起落架部件。预计近β钛合金将在未来获得更广泛的应用。然而，尽管人们对近β钛合金的设计进行了大量的研究，但从工业制造的角度，特别是在焊接、成形和添加制造(AM)等过程中，了解组织和力学性能之间的相关性的工作还很少。

Titanium alloys have been widely used in the aerospace, chemical, and biomedical industries due to their high specific strength and excellent corrosion resistance. For the next generation of lighter and energy-efficient aircraft structures, the use of high strength near-β Ti-alloys in the fuselage, bogie beam, flap track, nacelles, pylon, and la195nding gear assemblies will be cost effective from the perspective of weight reduction and mechanical properties compared to the industry workhorse Ti-6Al-4V, the most widely used α+β alloy. Major aerospace manufacturers like Airbus and Boeing have started to use forged near-β Ti-alloys as landing gear components. It is expected that near-β Ti-alloys will gain wider applications in the future. However, while significant research has been conducted on near-β Ti-alloy design, little work has been done to understand the microstructure-mechanical properties correlations from the industrial manufacturing point of view, especially during processes such as, welding, forming, and additive manufacturing (AM).