Nondestructive evaluation of cracks in a paramagnetic specimen with low conductivity by penetration of magnetic fluid

被引：12

作者：

Jun, Jongwoo ^{[2
]}

Lee, Jinyi ^{[1
]}

机构：

[1] Chosun Univ, Dept Control Instrumentat & Robot Engn, Kwangju 501759, South Korea

[2] Chosun Univ, Grad Sch, Dept Informat & Commun Engn, Kwangju 501759, South Korea

来源：

NDT & E INTERNATIONAL | 2009年 / 42卷 / 04期

关键词：

Paramagnetic; NDT; Magnetic fluid; Penetration; Magnetic flux leakage; Induced current; Sensor array; CAMERA; ARRAY;

D O I：

10.1016/j.ndteint.2008.12.001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper proposes a nondestructive testing method for detecting a crack in in Inconel" specimen. Because of the low conductivity and permeability of Inconel, cracks me difficult to detect using, the electromagnetic method, until now. In our method, magnetic fluid penetrates a Surface crack, in the Inconel specimen, and the distribution of the magnetic field is measured using a scan-type magnetic camera. The magnetic held leakage and induced current methods were examined. Willi our method, cracks call be evaluated. This research Can be Used to detect and evaluate cracks on non-ferrous and non-metallic materials such as ceramic, composite, and synthetic resins. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：297 / 303

页数：7

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