On Time-Temperature Parameters for Correlation of Creep-Rupture Data in Stainless Steel Weldments

[+] Author and Article Information
W. E. White

Department of Mechanical Engineering, University of Calgary, Calgary, Canada

Iain Le May

Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, Canada

J. Eng. Mater. Technol 100(3), 319-332 (Jul 01, 1978) (14 pages) doi:10.1115/1.3443497 History: Received October 06, 1977; Revised January 23, 1978; Online August 17, 2010


The Manson-Haferd, Larson-Miller, and Orr-Sherby-Dorn time-temperature parameters were applied to creep-rupture data obtained from testing two batches of austenitic stainless steel weldments. It was found that none of these correlated the data satisfactorily. A new parameter, based on a modification of one proposed originally by Manson and by Goldhoff and Sherby, was found to adequately correlate the data. The Minimum-Commitment, Station-Function Approach of Manson and Ensign was also applied, the results of which supported those obtained from the analysis made using the parameters listed above. Finally, from the relationship between rupture-time and secondary creep-rate, it is suggested that the form of the rupture data may be useful in predicting the physical basis for creep.

Copyright © 1978 by ASME
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