Superelastic Titanium Alloys for Vibration Damping in Military Aeroengines

用于军用航空发动机减振的超弹性钛合金

• 批准号: 2110120
• 金额: --
• 依托单位: University of Cambridge
• 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-2110120
• 关键词: Superelastic; Titanium; Alloys; Vibration; Damping

Superelastic materials have great potential as the basis for high frequency damping systems, as the martensitic transformation that gives rise to the phenomenon is fully reversible and occurs at near sonic velocities. However, transformation stability is a key issue if these materials are to be successful in engineering applications and so characterising the contributions to their cyclic fatigue behaviour is critical. In addition, little is known about the effect of loading variables, such as strain rates, which can be critical design parameters. As such, results gathered in this work will be used to create a behavioural database, containing information that is not only important in defining the useable design space of these materials but also in identifying points at which behavioural changes occur.

超弹性材料作为高频减振系统的基础具有很大的潜力，因为引起这种现象的马氏体相变是完全可逆的，并且发生在接近音速的速度。然而，如果这些材料要在工程应用中获得成功，相变稳定性是一个关键问题，因此表征其循环疲劳行为的贡献是至关重要的。此外，对加载变量的影响知之甚少，例如应变率，这些变量可能是关键的设计参数。因此，在这项工作中收集的结果将被用来创建一个行为数据库，其中包含的信息不仅对确定这些材料的可用设计空间很重要，而且对于确定发生行为变化的点也很重要。

项目成果

The effect of sample size on the microstructure and mechanical properties of Ti2448 (Ti-24Nb-4Zr-8Sn wt%)

%20效果%20of%20样品%20尺寸%20%20%20显微组织%20和%20力学%20性能%20of%20Ti2448%20(Ti-24Nb-4Zr-8Sn%20wt%)

• DOI: 10.17863/cam.88244
• 发表时间: 2023
• 作者: Church N

Evidence of Dislocation Dependent Behaviour in Superelastic Ti2448 (Ti-24Nb-4Zr-8Sn, wt%)

• DOI: 10.1016/j.actamat.2023.119066
• 发表时间: 2023-06
• 期刊: Acta Materialia
• 影响因子: 9.4
• 作者: N.L. Church;C. Talbot;J.R. Miller;L. Connor;Š. Michalik;N. Jones

A Mechanistic Understanding of the ß to a'' Transformation in Superelastic Ti-24Nb-4Zr-8Sn (wt%)

A%20机械%20理解%20of%20the%20à%20to%20a%20转变%20in%20超弹性%20Ti-24Nb-4Zr-8Sn%20(wt%)

• DOI: 10.17863/cam.96520
• 发表时间: 2021
• 作者: Church N

Development of ultra-high strength Ti-Nb-Sn alloys through grain-refinement by in situ Zener pinning

• DOI: 10.1016/j.scriptamat.2022.114809
• 发表时间: 2022
• 期刊: Scripta Materialia
• 影响因子: 6
• 作者: N.L. Church;C. Talbot;G.J. Wise;Oyi Shah;N. Jones

The influence of stress on subsequent superelastic behaviour in Ti2448 (Ti-24Nb-4Zr-8Sn, wt%)

%20影响%20of%20应力%20on%20后续%20超弹性%20行为%20in%20Ti2448%20(Ti-24Nb-4Zr-8Sn,%20wt%)

• DOI: 10.17863/cam.79122
• 发表时间: 2022
• 作者: Church N