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在X80管道钢管道中损害演变的现场超声波表征

Bing Chen¹, Feifei Qiu¹, Li Xia²

¹School of Materials Science & Engineering, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, China.

Materials (Basel, Switzerland)

|December 17, 2024

概括

一个新的超声波系统准确地监测充电期间X80管道钢中的损伤. 这种方法揭示了由引起的裂,为材料完整性和损坏程度提供了关键的见解.

科学领域:

材料科学材料科学材料科学
非破坏性测试不破坏性测试
腐蚀工程腐蚀工程

背景情况:

材料中的损伤对环境中的设备完整性构成风险.
精确的,实时监测损坏对于运营安全至关重要.
现有的方法可能缺乏在现场评估充电过程的精度.

研究的目的:

开发和验证一种新的恒温电解化在位超声波测试系统 (In Situ TEH-UT).
为了研究充电过程中X80管道钢的超声波反应.
阐明超声波参数与引起的损伤机制之间的关系.

主要方法:

开发In Situ TEH-UT系统,集成交叉相关延迟和频域幅度估计.
在受控电解化下对X80管道钢进行现场超声波评估.
微观结构的表征,以识别损伤机制,如引起的裂 (HIC).

主要成果:

在In Situ TEH-UT系统实现了超声波传播时间和振幅的精确测量.
在X80管道钢中,在30mA/cm2电流下800分钟观察到度.
在超声波衰减和充电时间之间发现了强烈的线性相关性,长达800分钟.

结论:

超声波参数,特别是衰减系数和振幅衰减,是损伤进展的可靠指标.
引起的裂 (HIC) 是超声波参数变化的主要原因.
开发的系统为了解损伤机制和评估材料完整性提供了有价值的工具.

关键词:

在X80管道钢管道钢.损伤的进化过程进化过程由引发的裂是由引起的.在现场超声波表征.

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