Low-Cycle Fatigue Life Analyzed by Parameter Method for Various High Temperature Materials

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  • パラメータ解析法による各種高温材料の低サイクル疲労寿命評価
  • パラメータ カイセキホウ ニ ヨル カクシュ コウオン ザイリョウ ノ テイ

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Abstract

Low-cycle fatigue life for various kinds of high temperature materials has been analyzed by a modified Larson-Miller parameter. written by P = T (logN25 Alogε + B) where T is temperature, N25 is fatigue life under symmetrical strain wave shapes, ε is strain rate, and A and B are constants. Test data used in the analysis are from NRIM Fatigue Data Sheets of popular engineering materials of nine kinds, ten heats including carbonsteel to Fe-base super alloy. The results have been compared between the materials and compared with statistical analysis results adopted in a design code.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 79 (11), 1288-1292, 1993

    The Iron and Steel Institute of Japan

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