Microstructure Effects on Fatigue in (New) Titanium Alloys

微观结构对（新）钛合金疲劳的影响

• 批准号: 2075286
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2075286
• 关键词: Microstructure; Effects; Fatigue; New; Titanium

The aim of this project is to study current and develop new titanium alloys to see the effect that various microstructure changes will have on fatigue in titanium. These titanium alloys will be used in jet aero-engines so preventing failure under cyclic applied loads below the yield stress is essential. Altering the microstructure of the titanium alloys may help to stop fatigue crack growth initiating or propagating in the material, which will increase the lifetime that the material can be used in the engine without failure. The project will involve starting by creating titanium alloys from the individual elements, all the way to carrying out mechanical testing on samples, as well as using various microscopy techniques to look at the surfaces and interior of alloys.

本项目的目的是研究现有的钛合金和开发新的钛合金，以了解各种组织变化对钛疲劳的影响。这些钛合金将用于喷气航空发动机，因此防止在低于屈服应力的循环载荷下失效是至关重要的。改变钛合金的微观组织有助于阻止疲劳裂纹在材料中的萌生或扩展，从而提高材料在发动机上无故障使用的寿命。该项目将从从单个元素创建钛合金开始，一直到对样品进行机械测试，以及使用各种显微镜技术来观察合金的表面和内部。