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RESEARCH PAPERS

An Analysis of High Temperature Metal Creep—Part I: Experimental Definition of an Alloy

[+] Author and Article Information
J. H. Laflen

Structural Materials and Tribology Section, Battelle Columbus Laboratories, Columbus, Ohio 43201

D. C. Stouffer

Department of Engineering Science, University of Cincinnati, Cincinnati, Ohio 45221

J. Eng. Mater. Technol 100(4), 363-370 (Oct 01, 1978) (8 pages) doi:10.1115/1.3443505 History: Received February 08, 1978; Revised June 21, 1978; Online August 17, 2010

Abstract

The general objective of the research reported is to develop a constitutive theory for the elevated temperature behavior of Wrought Udiment 700. A major part of this work was to establish a data base for this material and evaluate the observed response using many of the modern approaches to constitutive modeling. The phenomenological description of the material was evaluated by a series of load rate, strain rate, and creep tests. These data clearly showed the existence of a finite primary creep rate response function similar to the minimum creep rate function. Also the concept of material stress rate coordinate is introduced to describe the change from the primary to the minimum creep rate.

Copyright © 1978 by ASME
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