基于声辐射的腐蚀成像作为一种可能的方法,用于识别结构局部大气腐蚀
Thomas Erlinger1, Christoph Kralovec1, Martin Schagerl1
1Institute of Structural Lightweight Design, Johannes Kepler University Linz, Altenberger Str. 69, Linz, 4040, Upper Austria, Austria.
Ultrasonics
|September 27, 2025
概括
这项研究证明了声辐射 (AE) 成像用于在合金中完全识别腐蚀. 基于AE的腐蚀成像可以定位,量化和描述大气腐蚀,增强结构健康监测.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 非破坏性测试 不破坏性测试
背景情况:
- 合金的大气腐蚀对航空业等行业的结构完整性构成风险.
- 结构健康监测 (SHM) 对于保持结构安全至关重要.
- 声波发射 (AE) 是一种有前途的SHM技术,用于损害定位和范围估计.
研究的目的:
- 研究AE在薄壁结构中局部化,量化和表征大气腐蚀的潜力.
- 开发和评估基于AE的腐蚀成像,以完全识别腐蚀.
- 应对局部化和量化来自大气腐蚀的低振幅AE事件的挑战.
主要方法:
- 利用基于AE的腐蚀成像,结合了许多个AE事件的精确AE源定位.
- 与腐蚀的时间演变相关联的AE数据以描述腐蚀类型.
- 在大气腐蚀条件下将该方法应用于薄壁结构.
主要成果:
- 基于AE的腐蚀成像成功地局部化了腐蚀.
- 该技术有助于估计腐蚀的空间范围.
- AE成像显示了通过分析时间图像演变来表征不同腐蚀类型的潜力.
结论:
- 基于AE的腐蚀成像显示了在结构中完全识别腐蚀的高潜力.
- 这种技术可以显著提升未来的SHM应用在腐蚀监测.
- 该研究验证了AE作为全面腐蚀评估的强大工具.
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