Magnetic Barkhausen emission to evaluate fatigue damage in a low carbon structural steel

被引：57

作者：

Sagar, SP ^{[1
]}

Parida, N

Das, S

Dobmann, G

Bhattacharya, DK

机构：

[1] Natl Met Lab, MST Div, Jamshedpur 831007, Bihar, India

[2] Fraunhofer Inst Zerstorungsfreie Prufverfahren, IZFP, Dresden, Germany

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2005年 / 27卷 / 03期

关键词：

magnetic Barkhausen emission; fatigue; microstructural change; transmission electron microscopy; dislocation cell structure; persistent slip bands;

D O I：

10.1016/j.ijfatigue.2004.06.015

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The various stages of fatigue damage in low carbon structural steel have been characterized using magnetic Barkhausen emission (MBE) signal analysis technique during high cycle fatiguing. The observed trends in the variation in MBE peak voltage showed an initial increase followed by a decrease. After that a sharp increase was found during online monitoring of fatigue till failure. The variation of MBE peak voltage with mechanical deformation was correlated with the microstructural changes at different stages of fatigue damage. The state-of-the-heart of microstructural changes at various stages of fatigue damage has been established using transmission electron microscopy (TEM) to correlate the changes in the magnetic Barkhausen parameters with the microstructural changes. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：317 / 322

页数：6

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