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TECHNICAL PAPERS

Calculation of Stress Relaxation Properties for Type 422 Stainless Steel

[+] Author and Article Information
F. V. Ellis

Tordonato Energy Consultants, Inc., 4156 South Creek Road, Chattanooga, TN 37406

Sebastian Tordonato

Tordonato Energy Consultants, Inc., P.O. Box 441, Clifton, VA 20124

J. Pressure Vessel Technol 122(1), 66-71 (Oct 19, 1999) (6 pages) doi:10.1115/1.556152 History: Received August 15, 1999; Revised October 19, 1999
Copyright © 2000 by ASME
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References

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Ellis, F. V., Tordonato, S., and Viswanathan, R., 1998, “Prediction of Cyclic Stress Relaxation for 1CrMoVTiB,” Fatigue, Fracture, and High Temperature Design Methods in Pressure Vessels and Piping, ASME, New York, NY, pp. 175–182.
NRIM, 1997, “Data Sheets on The Elevated-Temperature Stress Relaxation Properties of 1Cr-0.5Mo-0.25V Steel and 12Cr-1Mo-1W-0.25V Steel Bolting Materials for High Temperature Service,” NRIM Creep Data Sheet No. 44, National Research Institute for Metals, Tokyo, Japan.
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Figures

Grahic Jump Location
Creep strain versus time curves for 12Cr-1Mo-1W-1/4V bolting material at 550°C from the NRIM 3 data compilation
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Observed and calculated strain fraction versus life fraction at 550°C
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Comparison of observed and calculated creep strain versus time curves at 500°C
Grahic Jump Location
Comparison of observed and calculated creep strain versus time curves at 550°C
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Comparison of observed and calculated rupture properties at 500°C
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Comparison of observed and calculated rupture elongation as a function of rupture time at 550°C
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Comparison of observed and calculated stress versus time curves at (a) 500°C, (b) 550°C, and (c) 600°C
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Comparison of observed and calculated accumulated inelastic strain versus time curves at 550°C as a function of initial stress

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