initiation and growth behavior of a fatigue crack in inconel 718 at elevated temperatures

Translated title of the contribution: Initiation and growth behavior of a fatigue crack in inconel 718 at elevated temperatures

Qiang Chen, Norio Kawagoishi, Masahiro Goto, Hironobu Nisitani, Eiji Kondo, Yoshihisa Ohzono

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Rotating bending fatigue tests were performed for Inconel 718 at room temperature and elevated temperatures of 300°C, 500°C and 600°C to investigate the influence of temperature on the fatigue crack initiation and its propagation. Although the propagation of a micro-crack smaller than about 20 um is suppressed at elevated temperatures, that of the larger-crack is accelerated inversely. These results were discussed from the viewpoints of the softening of matrix and the oxidation of surface caused by the high temperature.

Original languageJapanese
Pages (from-to)1954-1961
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume65
Issue number637
DOIs
Publication statusPublished - Jan 1 1999

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Crack propagation
Temperature
Cracks
Crack initiation
Fatigue cracks
Fatigue of materials
Oxidation

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

initiation and growth behavior of a fatigue crack in inconel 718 at elevated temperatures. / Chen, Qiang; Kawagoishi, Norio; Goto, Masahiro; Nisitani, Hironobu; Kondo, Eiji; Ohzono, Yoshihisa.

In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 65, No. 637, 01.01.1999, p. 1954-1961.

Research output: Contribution to journalArticle

Chen, Qiang ; Kawagoishi, Norio ; Goto, Masahiro ; Nisitani, Hironobu ; Kondo, Eiji ; Ohzono, Yoshihisa. / initiation and growth behavior of a fatigue crack in inconel 718 at elevated temperatures. In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A. 1999 ; Vol. 65, No. 637. pp. 1954-1961.
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