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首页> 外文会议>NACE International annual conference exposition;Corrosion 2000 >Coating Effects in Microwave NDE in the Detection of Corrosion for Aircraft Applications
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Coating Effects in Microwave NDE in the Detection of Corrosion for Aircraft Applications

机译：微波NDE在飞机腐蚀检测中的涂层效应

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摘要

The ability of a corrosion detection system to sense corrosion in its earliest sts~es in aircraft applications is anrnimportant indicator of NDE system virtue. Microwave NDE is an emerging technology that uses the interaction betweenrnincident microwave radiation and the dielectric materials on the surface of the inspected item, including corrosion products,rnpaints, and appliques, to detect the presence of corrosion. To assess the sensitivity of microwave methods to early corrosionrnproduct formation a series of aircraft aluminum plates with varying levels of corrosive exposure were fabricated as testrnspecimens. The corroded plates were tested in raw format, either bare metal or with a scratched Allodine anti-corrosionrncoating, then covered with aircraft paints and appliques, and tested again. The ability of the microwave NDE sensor to detectrncorrosion was correlated with the exposure time of the specimens. The onset of corrosion detectability was discernible in therndata. The influences of paint and applique coatings on detectability onset and the correlation of detection amplitude withcorrosive exposure time is reported.
机译：腐蚀检测系统在飞机应用中最早可以感知腐蚀的能力是NDE系统优点的重要指标。微波无损检测是一项新兴技术，它利用入射的微波辐射与被检物品表面的介电材料（包括腐蚀产物，油漆和贴花）之间的相互作用来检测腐蚀的存在。为了评估微波方法对早期腐蚀产物形成的敏感性，制造了一系列具有不同腐蚀暴露水平的飞机铝板作为试样。将受腐蚀的板以裸露的形式进行测试，无论是裸露的金属还是带有划痕的Allodine防腐涂层，然后用飞机油漆和贴花覆盖，然后再次进行测试。微波NDE传感器检测腐蚀的能力与样品的暴露时间相关。在数据中可以看出腐蚀可检测性的开始。报道了油漆和贴花涂料对可检测性发作的影响以及检测幅度与腐蚀暴露时间的相关性。

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