Advanced Processing of a Near Beta Titanium Alloy

近β钛合金的先进加工

• 批准号: RGPIN-2017-06347
• 负责人: Kabir, AbuSyedHumaun
• 金额: $ 1.6万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638146
• 关键词: Advanced; Processing; Near; Beta; Titanium

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).

钛合金由于其高的比强度和优异的耐腐蚀性而被广泛应用于航空航天、化学和生物医学工业。对于下一代更轻、更节能的飞机结构，从减轻重量和机械性能的角度来看，与工业主力Ti-6Al-4V（最广泛使用的α+β合金）相比，在机身、转向架梁、襟翼导轨、短舱、挂架和起落架组件中使用高强度近β钛合金将具有成本效益。空客和波音等主要航空航天制造商已经开始使用锻造近β钛合金作为起落架部件。近β钛合金具有广阔的应用前景。然而，虽然对近β钛合金设计进行了大量研究，但从工业制造的角度，特别是在焊接、成型和增材制造（AM）等工艺过程中，了解微观组织-机械性能相关性的工作很少。