Eddy current residual stress profiling in surface-treated engine alloys

被引：36

作者：

Abu-Nabah, Bassam A. ^{[1
]}

Yu, Feng ^{[1
]}

Hassan, Waled T. ^{[2
]}

Blodgett, Mark P. ^{[3
]}

Nagy, Peter B. ^{[1
]}

机构：

[1] Univ Cincinnati, Dept Aerosp Engn, Cincinnati, OH 45221 USA

[2] Honeywell Aerosp, Phoenix, AZ 85034 USA

[3] USAF, Res Lab, Wright Patterson AFB, OH 45433 USA

来源：

NONDESTRUCTIVE TESTING AND EVALUATION | 2009年 / 24卷 / 1-2期

关键词：

eddy current; spectroscopy; surface-treatment; residual stress profiling; CURRENT CONDUCTIVITY; SPIRAL COILS; INSPECTION; MANGANIN;

D O I：

10.1080/10589750802245280

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Recent research results indicate that eddy current conductivity measurements can be exploited for nondestructive evaluation of subsurface residual stresses in surface-treated nickel-base superalloy components. According to this approach, the depth-dependent electric conductivity profile is calculated from the measured frequency-dependent apparent eddy current conductivity spectrum. Then, the residual stress depth profile is calculated from the conductivity profile based on the piezoresistivity coefficient of the material, which is determined separately from calibration measurements using the known external applied stresses. This paper reviews the basic principles, measurement procedures, advantages, and limitations of eddy current residual stress profiling.

引用

页码：209 / 232

页数：24

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