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RESEARCH PAPERS

Experimental Evaluation of Creep Constitutive Equations for Type 304 Stainless Steel Under Non-Steady Multiaxial States of Stress

[+] Author and Article Information
S. Murakami

Department of Mechanical Engineering, Nagoya University, Chikusa-ku, Nagoya 464, Japan

N. Ohno

Department of Energy Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi 440, Japan

H. Tagami

Nippon Denso Co. Ltd., Showa-cho, Kariya 448, Japan

J. Eng. Mater. Technol 108(2), 119-126 (Apr 01, 1986) (8 pages) doi:10.1115/1.3225848 History: Received March 23, 1984; Online September 15, 2009

Abstract

In order to evaluate the validity and limitations of the creep-hardening surface model proposed by the present authors, a series of creep tests for type 304 stainless steel were performed at 600°C under various non-steady multiaxial loadings. The test time and the interval of stress change were 960 hr and 48 or 96 hr, respectively, and five kinds of stress histories consisting of randomly varying stress magnitude, stress direction and interval of stress change were employed. It was found that the creep-hardening surface model describes sufficiently well the creep behavior observed in this work.

Copyright © 1986 by ASME
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