CAJ | 학술논문

涡轮叶片作为燃气轮机的重要部件，长期在高温、高压、高速旋转的环境中工作，其热障涂层极易损坏。热障涂层损坏会极大地影响涡轮叶片的使用寿命。红外热波检测技术不同于传统的红外检测方法，它通过主动控制激励热源来对涡轮叶片进行加热，然后利用红外热像仪摄取具有热障涂层脱落情况叶片的红外图像，并使用伪彩色增强技术和边缘检测技术增强对红外图像中热障涂层缺陷的分辨能力。实验结果表明，该检测技术可以快速准确地检测出热障涂层脱落部分的位置及大小。
와륜협편작위연기륜궤적중요부건，장기재고온、고압、고속선전적배경중공작，기열장도층겁역손배。열장도층손배회겁대지영향와륜협편적사용수명。홍외열파검측기술불동우전통적홍외검측방법，타통과주동공제격려열원래대와륜협편진행가열，연후이용홍외열상의섭취구유열장도층탈락정황협편적홍외도상，병사용위채색증강기술화변연검측기술증강대홍외도상중열장도층결함적분변능력。실험결과표명，해검측기술가이쾌속준학지검측출열장도층탈락부분적위치급대소。
A gas turbine blade is always working in a high temperature, high pressure and high speed rotating envi?ronment. The thermal barrier coating of the turbine blade is easy to be broken. If thermal barrier coating falls off, it will have a great influence on the service life of the turbine blade. The infrared thermal inspection technology is dif?ferent from the traditional infrared inspection methods. It actively controls and drives the heat source to heat the tur?bine blade. Then the infrared image with thermal barrier fell off can be got by infrared thermal imager. And in the mean time the pseudo?color enhancement technology and edge detection technology are used to enhance the capabil?ities of distinguishing thermal barrier coating defect in the infrared image. The experimental results show that this technology can fastly and accurately ascertain the size and location where the thermal barrier coating falls off.