Rail-energy knowledge exchange on emerging materials (ALCHEMy)

关于新兴材料的轨道能源知识交流 (ALCHEMy)

• 批准号: EP/M023044/1
• 负责人: Roger Lewis
• 金额: $ 90.56万
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FM023044%2F1
• 关键词: Rail; energy; knowledge; exchange; emerging

In order to improve the management of railway networks and provide the timetables that passengers demand throughout the week, track components with greater durability that are easier to maintain are essential. With these in place less access will be needed to the track, keeping it free for trains.The aim of this project is, through the use of process modelling and full-scale testing and modelling, to enable the effective design of a laser clad layer of premium material for application to a range of track components to reduce wear and the likelihood of rolling contact fatigue occurring. These are the two most prolific damage mechanisms in railway track. A major goal of the project is to comprehensively study the behaviour of cladded components on a test track to validate the modelling and laboratory work.The technique, as well as improving component life and reducing maintenance needs, will reduce costs by allowing lower grade rail material to be used and also in-situ repairs could be facilitated eventually, negating the need for components to be removed from track when they reach the end of their life.The project, while focussed on railway track applications will also consider vehicle components in parallel activity and ensure that the knowledge and fundamental knowledge gained on the integrity of cladded components through multi-scale modelling of different geometries and cladding parameters is transferred to other sectors where cladding is used, such as energy, oil and gas and aerospace.

为了改善铁路网络的管理，并提供乘客要求的全周时间表，具有更高耐用性且更易于维护的轨道部件至关重要。该项目的目的是通过使用过程建模和全尺寸测试和建模，有效设计优质材料激光熔覆层，应用于一系列轨道部件，以减少磨损和滚动接触疲劳发生的可能性。这是铁路轨道中最常见的两种损伤机制。该项目的一个主要目标是在测试轨道上全面研究包覆部件的行为，以验证建模和实验室工作。该技术，以及提高部件寿命和减少维护需求，将通过允许使用较低等级的铁轨材料来降低成本，并且最终可以促进现场维修，无需在部件达到使用寿命时将其从轨道上拆除。该项目，在关注铁路轨道应用的同时，还将考虑并行活动中的车辆部件，并确保获得的知识和基础知识的完整性通过不同几何形状和包层参数的多尺度建模，对包层部件进行的最新研究成果被转移到使用包层的其他部门，如能源、石油和天然气以及航空航天。

项目成果

Benchmarking of Premium Rail Material Wear

优质钢轨材料磨损的基准测试

• 发表时间: 2018
• 作者: Christoforou, P.

Laser cladding of rail; the effects of depositing material on lower rail grades

• DOI: 10.1016/j.wear.2019.203045
• 发表时间: 2019-11-15
• 期刊: WEAR
• 影响因子: 5
• 作者: Lu, P.;Lewis, S. R.;Lewis, R.
• 通讯作者: Lewis, R.

Two-layer laser clad coating as a replacement for chrome electroplating on forged steel

• DOI: 10.1177/09544062211010853
• 发表时间: 2021-05-17
• 期刊: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
• 影响因子: 2
• 作者: Christoforou, Peter;Dowding, Robert;Lewis, Roger
• 通讯作者: Lewis, Roger

Investigation of the influence of rail hardness on the wear of rail and wheel materials under dry conditions (ICRI wear mapping project)

• DOI: 10.1016/j.wear.2019.05.030
• 发表时间: 2019-07-15
• 期刊: WEAR
• 影响因子: 5
• 作者: Lewis, R.;Christoforou, P.;Lewis, S. R.
• 通讯作者: Lewis, S. R.

Development of Residual Stresses During Laser Cladding

激光熔覆过程中残余应力的发展

• 发表时间: 2018
• 作者: Narayanan, A.