Effect of high-density electric current on the microstructure and fatigue crack initiation of stainless steel

Yongpeng Tang, Atsushi Hosoi, Yuichi Iwase, Yang Ju

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

To investigate the effect of high-density electric current on the delay of fatigue crack initiation, the dislocation structures before and after the application of electric current were investigated by transmission electron microscopy. Dislocation density was quantitatively characterized before and after the application of electric current to further understand the mechanics of the healing effect. Atomic force microscope results showed that the slips disappeared locally and the slip height decreased on the surface of the specimens. Furthermore, the delaying effect of the crack initiation due to the application of electric current was evaluated by the fatigue crack-initiation model in which the accumulation of the dislocation density was considered.

Original languageEnglish
Pages (from-to)2085-2092
Number of pages8
JournalMaterials Transactions
Volume54
Issue number11
DOIs
Publication statusPublished - 2013
Externally publishedYes

Fingerprint

crack initiation
Stainless Steel
Electric currents
electric current
Crack initiation
stainless steels
Stainless steel
microstructure
Microstructure
slip
healing
Mechanics
Microscopes
microscopes
Transmission electron microscopy
transmission electron microscopy
Fatigue cracks

Keywords

  • Crack initiation
  • Dislocation
  • Electric current
  • Fatigue
  • Slip bands

ASJC Scopus subject areas

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

Cite this

Effect of high-density electric current on the microstructure and fatigue crack initiation of stainless steel. / Tang, Yongpeng; Hosoi, Atsushi; Iwase, Yuichi; Ju, Yang.

In: Materials Transactions, Vol. 54, No. 11, 2013, p. 2085-2092.

Research output: Contribution to journalArticle

@article{13f8a78c3df04ee6b8c8b3c827b02a93,
title = "Effect of high-density electric current on the microstructure and fatigue crack initiation of stainless steel",
abstract = "To investigate the effect of high-density electric current on the delay of fatigue crack initiation, the dislocation structures before and after the application of electric current were investigated by transmission electron microscopy. Dislocation density was quantitatively characterized before and after the application of electric current to further understand the mechanics of the healing effect. Atomic force microscope results showed that the slips disappeared locally and the slip height decreased on the surface of the specimens. Furthermore, the delaying effect of the crack initiation due to the application of electric current was evaluated by the fatigue crack-initiation model in which the accumulation of the dislocation density was considered.",
keywords = "Crack initiation, Dislocation, Electric current, Fatigue, Slip bands",
author = "Yongpeng Tang and Atsushi Hosoi and Yuichi Iwase and Yang Ju",
year = "2013",
doi = "10.2320/matertrans.M2013198",
language = "English",
volume = "54",
pages = "2085--2092",
journal = "Materials Transactions",
issn = "1345-9678",
publisher = "Japan Institute of Metals (JIM)",
number = "11",

}

TY - JOUR

T1 - Effect of high-density electric current on the microstructure and fatigue crack initiation of stainless steel

AU - Tang, Yongpeng

AU - Hosoi, Atsushi

AU - Iwase, Yuichi

AU - Ju, Yang

PY - 2013

Y1 - 2013

N2 - To investigate the effect of high-density electric current on the delay of fatigue crack initiation, the dislocation structures before and after the application of electric current were investigated by transmission electron microscopy. Dislocation density was quantitatively characterized before and after the application of electric current to further understand the mechanics of the healing effect. Atomic force microscope results showed that the slips disappeared locally and the slip height decreased on the surface of the specimens. Furthermore, the delaying effect of the crack initiation due to the application of electric current was evaluated by the fatigue crack-initiation model in which the accumulation of the dislocation density was considered.

AB - To investigate the effect of high-density electric current on the delay of fatigue crack initiation, the dislocation structures before and after the application of electric current were investigated by transmission electron microscopy. Dislocation density was quantitatively characterized before and after the application of electric current to further understand the mechanics of the healing effect. Atomic force microscope results showed that the slips disappeared locally and the slip height decreased on the surface of the specimens. Furthermore, the delaying effect of the crack initiation due to the application of electric current was evaluated by the fatigue crack-initiation model in which the accumulation of the dislocation density was considered.

KW - Crack initiation

KW - Dislocation

KW - Electric current

KW - Fatigue

KW - Slip bands

UR - http://www.scopus.com/inward/record.url?scp=84887450105&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84887450105&partnerID=8YFLogxK

U2 - 10.2320/matertrans.M2013198

DO - 10.2320/matertrans.M2013198

M3 - Article

AN - SCOPUS:84887450105

VL - 54

SP - 2085

EP - 2092

JO - Materials Transactions

JF - Materials Transactions

SN - 1345-9678

IS - 11

ER -