University of Illinois Urbana-Champaign

Past work on fatigue of metals in high temperature field

Dolan, Thomas J.

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https://hdl.handle.net/2142/111862

Description

Title
Past work on fatigue of metals in high temperature field
Author(s)
Dolan, Thomas J.
Issue Date
1950-06
Keyword(s)
  • Metal Fatigue
  • High Temperature Fatigue
Abstract
A review is made of the principal concepts of high temperature fatigue behavior of metals as obtained from laboratory investigations. The interaction between time-dependent creep, and cycle-dependent fatigue phenomena apparently results in a rate of progressive damage which may be quite different from that predicted from simple superposition of effects obtained in separate tests. In evaluating the significance of data from high temperature fatigue tests, the following factors must be given careful consideration: (a) the frequency of repetition of the stress cycle; (b) the metallurgical instability of most metals at high temperature; (c) the influence of surface effects (erosion, oxidation, or chemical changes); (d) the accentuation of time-dependent creep caused by the superposition of a mean or steady stress; and (e) the lack of knowledge regarding the reduction of fatigue strength caused by “stress raisers”. It is concluded that fundamental information is needed on the nature of the phenomena limiting the life of a metal in high temperature fatigue before accurate methods can be evolved for prediction of useful service life of specific components.
Publisher
Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report Name or Number
  • TAM R 17
  • 1967-0315
ISSN
0073-5264
Type of Resource
text
Language
eng
Permalink
http://hdl.handle.net/2142/111862
Sponsor(s)/Grant Number(s)
Office of Naval Research, U. S. Navy, Contract N6-ori-71, Task Order IV; Project NR-031-005
Copyright and License Information
Copyright 1950 Board of Trustees of the University of Illinois

Owning Collections

Technical Reports - Theoretical and Applied Mechanics (TAM) PRIMARY
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.