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首页> 外文期刊>Materials at High Temperatures >High-temperature application of titanium alloys in gas turbines. Material life cycle opportunities and threats - an industrial perspective
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High-temperature application of titanium alloys in gas turbines. Material life cycle opportunities and threats - an industrial perspective

机译：钛合金在燃气轮机中的高温应用。物质生命周期的机会和威胁-工业角度

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摘要

The gas turbine has truly remarkable scope with respect to the range of stress, temperature and environmental conditions it can generate. As such, material limitations are seldom derived from a single or simple property and this resulting complexity makes business case decisions on new material development non-trivial. This is particularly true for 'step change' materials where a robust manufacturing supply chain/process route may not exist and the ability to utilise experience to bound validation and certification needs may be limited. This paper aims to highlight key issues associated with the limitations of existing materials and the nature of material selection to enable component weight reduction and / or temperature increase. Gamma titanium aluminides will be used as a worked example to elucidate the subtle and sometimes non-intuitive nature of new material introduction.
机译：燃气轮机在其可能产生的应力，温度和环境条件方面具有真正卓越的范围。这样，材料限制很少来自单个或简单的属性，并且由此产生的复杂性使对新材料开发的业务案例决策变得不容易。对于“步骤变更”材料尤其如此，在这种情况下，可能不存在稳健的制造供应链/流程路线，并且利用经验限制验证和认证需求的能力可能受到限制。本文旨在突出与现有材料的局限性以及使组件重量减轻和/或温度升高的材料选择性质相关的关键问题。伽玛钛铝化物将用作示例，以阐明新材料引入的微妙且有时是非直觉的性质。

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