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过载对表面处理电缆弧添加剂制造的钢标本残余应力分布的影响
Fraser O'Neill1, Emmet McLaughlin1, Anna Ermakova2
1Department of Naval Architecture, Ocean and Marine Engineering, University of Strathclyde, Glasgow G1 1XQ, UK.
Materials (Basel, Switzerland)
|April 24, 2025
概括
电弧增材制造 (WAAM) 为海上可再生能源组件提供了具有成本效益的解决方案. 本研究研究了表面处理方法,以减轻残余应力,提高WAAM部分的疲劳性能,这对于可靠的海上能源基础设施至关重要.
科学领域:
- 材料科学与工程 材料科学与工程
- 机械工程 机械工程
- 可再生能源系统可再生能源系统
背景情况:
- 全球对脱碳的推动需要在离岸可再生能源 (ORE) 中取得进展.
- 电弧增材制造 (WAAM) 为ORE元件的生产和维修提供了一个有希望的,具有成本效益的解决方案,减轻了供应链的限制.
- 然而,在离岸环境中的WAAM组件面临周期性负载,使疲劳性能和残余应激管理对操作完整性至关重要.
研究的目的:
- 为了评估疲劳过载对表面处理WAAM标本残余应力分布的影响.
- 探索激光冲击切割和滚动后处理技术对WAAM组件疲劳行为的有效性.
- 确保WAAM制造的组件的可靠性和安全性,用于海上可再生能源应用.
主要方法:
- 使用电弧增材制造 (WAAM) 制造的利用紧张 (CT) 标本.
- 应用表面处理,特别是激光冲击和,以诱导压力余应力.
- 研究了疲劳裂变行为,并在疲劳过载条件下分析了残余应力分布.
主要成果:
- 表面处理 (激光冲击和滚动) 在引入压缩余应力方面是有效的.
- 发现疲劳过载会影响WAAM标本内的残余应力分布.
- 该研究提供了关于后处理技术所提供的疲劳性能增强的见解.
结论:
- 表面处理对于减轻残余应力和改善ORE的WAAM组件疲劳寿命至关重要.
- 了解疲劳负荷和残余应力之间的相互作用对于预测元件寿命至关重要.
- 这项研究通过解决关键材料性能问题,支持在海上可再生能源部门更广泛地采用WAAM.
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