基于涡流检测技术的腐蚀缺陷损伤研究  

Study on Corrosion Defect Damage Based on Eddy Current Detection Technology

作　　者：白炯洁 李俭 BAI Jiongjie;LI Jian(School of Aerospace Engineering,Xiamen University,Xiamen,Fujian Province,361100 China)

机构地区：[1]厦门大学航空航天学院,福建厦门361100

出　　处：《科技资讯》2025年第5期114-116,120,共4页Science & Technology Information

摘　　要：飞机在地面常年停放与空中服役时都极易受到高湿度、高温度、高盐分的大气环境影响,产生的腐蚀缺陷会影响材料的组织结构性能,导致疲劳裂纹,进而使材料受损严重。因此,需要采用无损检测技术定期检查军用和民航飞机的关键结构部件,及时发现损伤并进行评估,对保障其性能和安全至关重要。涡流检测作为一种新型的无损检测技术,已在飞机材料的无损检测中进行了尝试。以国内外涡流检测技术的研究动态为基础,探讨了线圈形状对检测信号的影响,综合考虑磁场和涡流的强度与分布情况,最终选择圆形线圈作为激励线圈,并证明涡流检测技术可以有效地检测铁磁性材料、准确地测量被检件的缺陷。Aircraft are particularly vulnerable to high humidity,high temperatures,and high salinity atmospheric en-vironments when parked on the ground year-round parking and in air service.These conditions can cause corro-sion defects that impact the material's organizational and structural qualities,leading to fatigue cracks and significantmaterial damage.Therefore,it is imperative that non-destructive testing technologies be used to frequently inspectthe major structural components of military and civil aircraft,timely detect damage and evaluate them,which is cru-cial to ensure the performance and safety of military and commercial aircraft.Eddy current detection has been testedas a novel non-destructive testing technology and attempted in the non-destructive testing of aircraft materials.This essay is based on the research trends of eddy current detection technology at home and abroad and investigates the impact of coil shape on the detection signal.It takes into account the strength and distribution of magnetic fieldand eddy current,and ultimately selects a circular coil as the excitation coil.It demonstrates that eddy current detec-tion technology is capable of accurately measuring defects in the inspected parts and successfully detecting ferromag-netic materials.

关 键 词：高强不锈钢 腐蚀损伤 腐蚀坑 涡流检测 

分 类 号：TG115.28[金属学及工艺—物理冶金]