Evaluation of hardened and non- ardened regions using eddy current testing

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A steel plate having hardened and non-hardened regions in one plate is promising material in automobile field owing to its high performance. This steel plate has to be evaluated whether the non-hardened region was prepared properly at the desired position with desired hardness. However, the conventional evaluation method of hardness measurement is destructive testing and requires a long inspection time. Therefore, a reliable and fast nondestructive inspection method is required. In this study, the hardened and non-hardened regions were evaluated using an eddy current testing (ECT) to distinguish each region. The measured resistivity and permeability at each region were different and these differences were found to be caused by the crystal structure change of heat treatment. Therefore, the magnetic response between the hardened and nonhardened regions was different and this difference was correlated with the hardness of each region. These results indicate that the hardened and non-hardened regions can be distinguished using ECT.

Original languageEnglish
Title of host publicationElectromagnetic Non-Destructive Evaluation (XXI)
PublisherIOS Press
Pages1-8
Number of pages8
ISBN (Electronic)9781614998358
DOIs
Publication statusPublished - Jan 1 2018
Event22nd International Workshop on Electromagnetic Nondestructive Evaluation, ENDE 2017 - Saclay, France
Duration: Sep 6 2017Sep 8 2017

Publication series

NameStudies in Applied Electromagnetics and Mechanics
Volume43
ISSN (Print)1383-7281
ISSN (Electronic)1879-8322

Other

Other22nd International Workshop on Electromagnetic Nondestructive Evaluation, ENDE 2017
CountryFrance
CitySaclay
Period9/6/179/8/17

Fingerprint

Eddy current testing
Hardness
Inspection
Steel
Automobiles
Crystal structure
Heat treatment
Testing

Keywords

  • Eddy current testing
  • Hardness
  • Magnetic sensor
  • Permeability
  • Phase

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Sakai, K., Ito, T., Kiwa, T., & Tsukada, K. (2018). Evaluation of hardened and non- ardened regions using eddy current testing. In Electromagnetic Non-Destructive Evaluation (XXI) (pp. 1-8). (Studies in Applied Electromagnetics and Mechanics; Vol. 43). IOS Press. https://doi.org/10.3233/978-1-61499-836-5-1

Evaluation of hardened and non- ardened regions using eddy current testing. / Sakai, Kenji; Ito, Takahiro; Kiwa, Toshihiko; Tsukada, Keiji.

Electromagnetic Non-Destructive Evaluation (XXI). IOS Press, 2018. p. 1-8 (Studies in Applied Electromagnetics and Mechanics; Vol. 43).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sakai, K, Ito, T, Kiwa, T & Tsukada, K 2018, Evaluation of hardened and non- ardened regions using eddy current testing. in Electromagnetic Non-Destructive Evaluation (XXI). Studies in Applied Electromagnetics and Mechanics, vol. 43, IOS Press, pp. 1-8, 22nd International Workshop on Electromagnetic Nondestructive Evaluation, ENDE 2017, Saclay, France, 9/6/17. https://doi.org/10.3233/978-1-61499-836-5-1
Sakai K, Ito T, Kiwa T, Tsukada K. Evaluation of hardened and non- ardened regions using eddy current testing. In Electromagnetic Non-Destructive Evaluation (XXI). IOS Press. 2018. p. 1-8. (Studies in Applied Electromagnetics and Mechanics). https://doi.org/10.3233/978-1-61499-836-5-1
Sakai, Kenji ; Ito, Takahiro ; Kiwa, Toshihiko ; Tsukada, Keiji. / Evaluation of hardened and non- ardened regions using eddy current testing. Electromagnetic Non-Destructive Evaluation (XXI). IOS Press, 2018. pp. 1-8 (Studies in Applied Electromagnetics and Mechanics).
@inproceedings{8e9e15e6456b4724ae17d8ca57c92fe0,
title = "Evaluation of hardened and non- ardened regions using eddy current testing",
abstract = "A steel plate having hardened and non-hardened regions in one plate is promising material in automobile field owing to its high performance. This steel plate has to be evaluated whether the non-hardened region was prepared properly at the desired position with desired hardness. However, the conventional evaluation method of hardness measurement is destructive testing and requires a long inspection time. Therefore, a reliable and fast nondestructive inspection method is required. In this study, the hardened and non-hardened regions were evaluated using an eddy current testing (ECT) to distinguish each region. The measured resistivity and permeability at each region were different and these differences were found to be caused by the crystal structure change of heat treatment. Therefore, the magnetic response between the hardened and nonhardened regions was different and this difference was correlated with the hardness of each region. These results indicate that the hardened and non-hardened regions can be distinguished using ECT.",
keywords = "Eddy current testing, Hardness, Magnetic sensor, Permeability, Phase",
author = "Kenji Sakai and Takahiro Ito and Toshihiko Kiwa and Keiji Tsukada",
year = "2018",
month = "1",
day = "1",
doi = "10.3233/978-1-61499-836-5-1",
language = "English",
series = "Studies in Applied Electromagnetics and Mechanics",
publisher = "IOS Press",
pages = "1--8",
booktitle = "Electromagnetic Non-Destructive Evaluation (XXI)",

}

TY - GEN

T1 - Evaluation of hardened and non- ardened regions using eddy current testing

AU - Sakai, Kenji

AU - Ito, Takahiro

AU - Kiwa, Toshihiko

AU - Tsukada, Keiji

PY - 2018/1/1

Y1 - 2018/1/1

N2 - A steel plate having hardened and non-hardened regions in one plate is promising material in automobile field owing to its high performance. This steel plate has to be evaluated whether the non-hardened region was prepared properly at the desired position with desired hardness. However, the conventional evaluation method of hardness measurement is destructive testing and requires a long inspection time. Therefore, a reliable and fast nondestructive inspection method is required. In this study, the hardened and non-hardened regions were evaluated using an eddy current testing (ECT) to distinguish each region. The measured resistivity and permeability at each region were different and these differences were found to be caused by the crystal structure change of heat treatment. Therefore, the magnetic response between the hardened and nonhardened regions was different and this difference was correlated with the hardness of each region. These results indicate that the hardened and non-hardened regions can be distinguished using ECT.

AB - A steel plate having hardened and non-hardened regions in one plate is promising material in automobile field owing to its high performance. This steel plate has to be evaluated whether the non-hardened region was prepared properly at the desired position with desired hardness. However, the conventional evaluation method of hardness measurement is destructive testing and requires a long inspection time. Therefore, a reliable and fast nondestructive inspection method is required. In this study, the hardened and non-hardened regions were evaluated using an eddy current testing (ECT) to distinguish each region. The measured resistivity and permeability at each region were different and these differences were found to be caused by the crystal structure change of heat treatment. Therefore, the magnetic response between the hardened and nonhardened regions was different and this difference was correlated with the hardness of each region. These results indicate that the hardened and non-hardened regions can be distinguished using ECT.

KW - Eddy current testing

KW - Hardness

KW - Magnetic sensor

KW - Permeability

KW - Phase

UR - http://www.scopus.com/inward/record.url?scp=85050531361&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85050531361&partnerID=8YFLogxK

U2 - 10.3233/978-1-61499-836-5-1

DO - 10.3233/978-1-61499-836-5-1

M3 - Conference contribution

AN - SCOPUS:85050531361

T3 - Studies in Applied Electromagnetics and Mechanics

SP - 1

EP - 8

BT - Electromagnetic Non-Destructive Evaluation (XXI)

PB - IOS Press

ER -