EFFECT OF COMPRESSIVE STRAIN HOLDING ON THE LOW CYCLE FATIGUE STRENGTH OF 2 one quarter Cr-1Mo STEEL AT ELEVATED TEMPERATURES.

Isamu Nonaka, Masaki Kitagawa, Akira Ohotomo, Yusaku Wada

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

At 470 degree C strain holding had generally no influence on fatigue strength but life reduction was observed in compressive strain holding tests at low strain. Life reduction was also observed in zero stress holding tests. Based on the observation of the oxide film, a mechanism is proposed The life reduction is closely related to the acceleration of fatigue crack initiation due to oxide cracking. The fatigue life of fast breeder reactor components is predicted on the basis of the proposed mechanism. The life under compressive strain holding turned out to be 10% of that of continuous cycling.

Original languageEnglish
Pages (from-to)2267-2274
Number of pages8
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume73
Issue number16
DOIs
Publication statusPublished - 1987

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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