CREEP CORRELATIONS OF METALS AT ELEVATED TEMPERATURES-AND APPENDIX- SERIES NO. 22, ISSUE NO. 25
Abstract
Creep and tensile data of pure metals above 0.45 times the melting temperature are correlated by using the equations epsilon = f(t e -DeltaH/RT, delta) and delta = f(epsilon sub s e DeltaH/RT) where epsilon is the creep, t is the test time, DeltaH is the creep-activation energy, R is the gas constant, T is the absolute temperature, delta is the applied stress, and epsilon s is the secondary creep rate). These parameters were applied successfully to creep and tensile data for Pt, Ni, Cu, Au, Al, Pb, Fe, and Zn as well as to solid-solution alloys. The quantity DeltaH was a constant for a given metal and was equal to the self-diffusion activation energy for a given metal. In addition, DeltaH was a periodic function of the atomic number.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1953
- Accession Number
- AD0005978
Entities
People
- John E. Dorn
- Oleg D. Sherby
- Raymond L. Orr
Organizations
- University of California, Berkeley