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RESEARCH PAPERS

Computerized Evaluations of the Relative Abilities of Seven Time-Temperature Parameters to Correlate and Extrapolate Nickel Alloy Stress-Rupture Data

[+] Author and Article Information
P. K. Raut, W. R. Clough

School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Ga.

J. Basic Eng 94(1), 7-12 (Mar 01, 1972) (6 pages) doi:10.1115/1.3425391 History: Received August 02, 1971; Online October 27, 2010

Abstract

A total of 31 stress-rupture data sets for 28 different nickel-base alloys, including 1153 individual test results, have been treated by graphical methods and computer programs to allow determinations of the relative abilities of Larson-Miller, Manson-Haferd, Sherby-Dorn, Goldhoff-Sherby, Manson-Succop, Conrad and Korchynsky parameters to correlate and extrapolate data. For the correlation of all data the Goldhoff-Sherby and Manson-Haferd methods are attractive, while for extrapolation to longer times some superiority of the Manson-Haferd and Manson-Succop parameters is demonstrated. Overall use of a third order polynomial approximation to Manson-Haferd master curves is recommended, as is the avoidance of external extrapolation. Results are primarily based on modified and original computer programs and standard statistical treatments of data.

Copyright © 1972 by ASME
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