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RESEARCH PAPERS

Creep-Fatigue Evaluation Based on the Overstress

[+] Author and Article Information
Y. Asada, Y. Okamoto, T. Hashimoto

Department of Mechanical Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan

J. Pressure Vessel Technol 113(2), 187-193 (May 01, 1991) (7 pages) doi:10.1115/1.2928746 History: Received November 16, 1990; Revised February 08, 1991; Online June 17, 2008

Abstract

There is summarized a series of creep-fatigue data on a normalized and tempered 2 1/4Cr-1Mo steel obtained at 550°C in a very high vacuum environment under a wide variety of a strain-time program. A special feature of a stress-strain response of the steel is described to give the overstress and the internal back stress. A damage equation is developed to predict a creep-fatigue behavior which is free from the environmental effect.

Copyright © 1991 by The American Society of Mechanical Engineers
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