Changes in eddy current testing signals of fatigue cracks by heat processing

Tetsuya Uchimoto, Toshiyuki Takagi, Xiaoyang Wu, Hao Feng, Ryoichi Urayama

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

In applying eddy current testing to evaluation of fatigue cracks in austenite stainless steels, various influential factors are needed to be considered, such as martensite transformation of austenitic phase, crack closure, and oxide formation between crack faces, and so on. In this study, influential factors of heating of fatigue cracks in type 316 austenitic stainless steels are evaluated through experimental and numerical analysis. Signal phase shift and amplitude decrease by heating is systematically discussed.

Original languageEnglish
Pages (from-to)677-684
Number of pages8
JournalInternational Journal of Applied Electromagnetics and Mechanics
Volume52
Issue number1-2
DOIs
Publication statusPublished - 2016

Keywords

  • austenitic stainless steel
  • Eddy current testing
  • fatigue crack
  • heat treatment
  • martensitic phase

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