FATIGUE OF COPPER-ZINC ALLOYS AT 100 K
Abstract
Fatigue tests were conducted to determine the S-N diagrams for a series of copper-zinc alloys at 100 K. An attempt was made to relate the endurance limit behavior to both stacking fault energy and yield strength, but no simple relationship was found. It is suggested that high stacking fault energy increases the cyclic work hardening rate by increasing the probability of dislocation intersection and jog formation. The increase in work hardening rate is reflected in a decrease in plastic strain amplitude, and a subsequent increase in fatigue life. The argu ments are bounded on one side by considerations of the yield strength of the alloys, and on the other side by consideration of the dominant mechanisms operative in short and long life fatigue.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1963
- Accession Number
- AD0406629
Entities
People
- J. A. Roberson
- J. C. Grosskreutz