High temperature low cycle fatigue properties of a HF30-type cast austenitic stainless steel

Yoon Jun Kim, Ho Jang, Yong Jun Oh

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

This work investigated the high temperature low cycle fatigue behavior of HF30-type, cast austenitic stainless steel. In addition to the preliminary results from tensile and thermal expansion tests, isothermal strain controlled fatigue tests at 600 °C and 800 °C were carried out with a total strain amplitude from ±0.20 % to ±0.65% and with a strain rate of 10-3/s. The plastic strain amplitudes during cyclic strain loading were measured and correlated with the fatigue lifetime using Coffin-Manson plots at each test temperature. These plots were re-constructed into a general superposition curve containing the results from both temperatures using a constitutive equation of the energy criterion for fatigue failure in terms of thermally activated dislocation motion. The cast and wrought stainless steels showed similar fatigue properties.

Original languageEnglish
Pages (from-to)244-249
Number of pages6
JournalMaterials Science and Engineering A
Volume526
Issue number1-2
DOIs
Publication statusPublished - 2009 Nov 25

Keywords

  • Cast stainless steel
  • Coffin-Manson equation
  • Low cycle fatigue

ASJC Scopus subject areas

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

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