Fatigue crack healing by a controlled high density electric current field

A. Hosoi; T. Nagahama; Y. Ju

doi:10.1016/j.msea.2011.11.024

Fatigue crack healing by a controlled high density electric current field

A. Hosoi, T. Nagahama, Y. Ju^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

83 Citations (Scopus)

Abstract

A technique was developed to heal a fatigue crack in stainless steel by controlling a high-density electric current field. The high density electric current field was applied at the tip of the crack by using closely spaced electrodes. From the experimental results, it was observed the crack closure and the bridging between the surfaces of a crack were caused around the vicinity of the crack tip after a high density pulse current was applied to a specimen. It was shown that crack propagation was delayed temporarily in the healed specimen.

Original language	English
Pages (from-to)	38-42
Number of pages	5
Journal	Materials Science and Engineering A
Volume	533
DOIs	https://doi.org/10.1016/j.msea.2011.11.024
Publication status	Published - 2012 Jan 30
Externally published	Yes

Keywords

Crack healing
Crack propagation
Electric current
Fatigue
Stainless steel

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2011.11.024

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abstract = "A technique was developed to heal a fatigue crack in stainless steel by controlling a high-density electric current field. The high density electric current field was applied at the tip of the crack by using closely spaced electrodes. From the experimental results, it was observed the crack closure and the bridging between the surfaces of a crack were caused around the vicinity of the crack tip after a high density pulse current was applied to a specimen. It was shown that crack propagation was delayed temporarily in the healed specimen.",

keywords = "Crack healing, Crack propagation, Electric current, Fatigue, Stainless steel",

author = "A. Hosoi and T. Nagahama and Y. Ju",

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T1 - Fatigue crack healing by a controlled high density electric current field

AU - Hosoi, A.

AU - Nagahama, T.

AU - Ju, Y.

N1 - Funding Information: This work was supported by the Japan Society for the Promotion of Science under Grant-in-Aid for Young Scientists (B) 21760072 .

PY - 2012/1/30

Y1 - 2012/1/30

N2 - A technique was developed to heal a fatigue crack in stainless steel by controlling a high-density electric current field. The high density electric current field was applied at the tip of the crack by using closely spaced electrodes. From the experimental results, it was observed the crack closure and the bridging between the surfaces of a crack were caused around the vicinity of the crack tip after a high density pulse current was applied to a specimen. It was shown that crack propagation was delayed temporarily in the healed specimen.

AB - A technique was developed to heal a fatigue crack in stainless steel by controlling a high-density electric current field. The high density electric current field was applied at the tip of the crack by using closely spaced electrodes. From the experimental results, it was observed the crack closure and the bridging between the surfaces of a crack were caused around the vicinity of the crack tip after a high density pulse current was applied to a specimen. It was shown that crack propagation was delayed temporarily in the healed specimen.

KW - Crack healing

KW - Crack propagation

KW - Electric current

KW - Fatigue

KW - Stainless steel

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JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

ER -

Fatigue crack healing by a controlled high density electric current field

Abstract

Keywords

ASJC Scopus subject areas

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