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RESEARCH PAPERS

Temperature-Dependence of Multiaxial Non-Proportional Cyclic Behavior of Type 316 Stainless Steel

[+] Author and Article Information
S. Murakami

Department of Mechanical Engineering, Nagoya University, Chikusa-ku, Nagoya 464-01, Japan

M. Kawai

Institute of Engineering Mechanics, University of Tsukuba, Tsukuba 305, Japan

K. Aoki

Nippon Steel Corporation, Hirohata-ku, Himeji 671-11, Japan

Y. Ohmi

Toyota Motor Corporation, Toyota-cho, Toyota 471, Japan

J. Eng. Mater. Technol 111(1), 32-39 (Jan 01, 1989) (8 pages) doi:10.1115/1.3226430 History: Received November 12, 1987; Online September 15, 2009

Abstract

Temperature dependence of multiaxial cyclic behavior of type 316 stainless steel was elucidated experimentally. Cyclic tests under constant total-strain amplitudes were performed for uniaxial tension-compression and circular (non-proportional) strain paths at several temperatures; room temperature, 200°C, 400°C, 500°C, 600°C, and 700°C. The strain amplitudes of the cycles were specified to be 0.2, 0.3, and 0.4 percent under constant strain rate of 0.2 percent per min. A quantitative discussion was made with special emphasis on the difference between material behavior under uniaxial tension-compression strain cycles and multiaxial non-proportional circular ones at these temperatures. The most significant cyclic hardening was observed in the temperature range between 400°C and 600°C for both the proportional and the non-proportional strain cycles. At these particular temperatures, much larger inelastic strain was accumulated until a cyclic stabilization was obtained. Though the effect of non-proportionality in the cyclic strain paths on the cyclic hardening was significant particularly at the temperature below 450°C, it rapdily decreased at higher temperatures.

Copyright © 1989 by ASME
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