The Possibility of Detecting Defects in Rail Foot by the MFL Method

IF 0.9 4区 材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Russian Journal of Nondestructive Testing Pub Date : 2024-04-09 DOI:10.1134/S1061830923601459
A. A. Markov, V. V. Mosyagin, A. G. Antipov, G. A. Ivanov
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Abstract

The article investigates the possibility of detecting defects in the form of transverse cracks in rail foot under continuous in-service inspection of rails. The MFL method is chosen as an alternative to ultrasonic testing. Computer modeling was carried out, based on the results of which a working model of the system for magnetizing and recording of monitoring signals was developed and constructed. Experimental studies on detection of crack models in rail foot were carried out in laboratory conditions. The studies confirmed the results of computer modeling and proved the possibility of detecting such crack models. The minimum sizes of detectable crack models in the zone of rail fastening and between them have been estimated.

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用 MFL 方法检测轨脚缺陷的可能性
摘要 本文研究了在对钢轨进行连续在役检查时检测轨脚横向裂纹形式的缺陷的可能性。选择 MFL 方法作为超声波检测的替代方法。在计算机建模的基础上,开发并构建了磁化和监测信号记录系统的工作模型。在实验室条件下进行了检测轨脚裂纹模型的实验研究。研究证实了计算机建模的结果,并证明了检测此类裂纹模型的可能性。已估算出在钢轨紧固区域和两者之间可检测到的裂缝模型的最小尺寸。
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来源期刊
Russian Journal of Nondestructive Testing
Russian Journal of Nondestructive Testing 工程技术-材料科学:表征与测试
CiteScore
1.60
自引率
44.40%
发文量
59
审稿时长
6-12 weeks
期刊介绍: Russian Journal of Nondestructive Testing, a translation of Defectoskopiya, is a publication of the Russian Academy of Sciences. This publication offers current Russian research on the theory and technology of nondestructive testing of materials and components. It describes laboratory and industrial investigations of devices and instrumentation and provides reviews of new equipment developed for series manufacture. Articles cover all physical methods of nondestructive testing, including magnetic and electrical; ultrasonic; X-ray and Y-ray; capillary; liquid (color luminescence), and radio (for materials of low conductivity).
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