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Research Papers

Ambient Temperature Creep of Type 304 Stainless Steel

[+] Author and Article Information
M. E. Kassner, P. Geantil

Department of Aerospace and Mechanical Engineering and Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA 90089-1453

R. S. Rosen1

 Defense Nuclear Facilities Safety Board, Washington, DC 20004-2901

1

Corresponding author.

J. Eng. Mater. Technol 133(2), 021012 (Mar 21, 2011) (5 pages) doi:10.1115/1.4003110 History: Received May 26, 2010; Revised November 22, 2010; Published March 21, 2011; Online March 21, 2011

This study reports the significant ambient temperature creep plasticity at stresses below the conventional 0.2% plastic strain off-set yield stress. This is partially due to the relatively high strain-rate sensitivity of 304 stainless steel. Cold-working significantly increases the creep resistance. Descriptive equations that predict low-stress creep plasticity, which are somewhat different than traditional creep-equation forms, are presented.

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Copyright © 2011 by American Society of Mechanical Engineers
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References

Figures

Grahic Jump Location
Figure 1

[(a)-(d)] The plastic strain versus the time behavior of annealed 304 SS under different stresses

Grahic Jump Location
Figure 2

(a) Plastic strain versus log time behavior of annealed 304 SS. (b) A comparison of the modeled creep curves based on Eqs. 1,2,3,4, with corresponding experimental curves. (c) Plastic strain versus time graph of curves in 2(b).

Grahic Jump Location
Figure 3

Plastic strain versus time graph of annealed and cold-worked 304 SS

Grahic Jump Location
Figure 4

Plastic strain versus log time of annealed and cold-worked 304 SS

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