Fatigue behavior of copper and selected copper alloys for high heat flux applications
The room temperature fatigue behavior of standard and subsize specimens was examined for five copper alloys: OFHC Cu, two CuNiBe alloys, a CuCrZr alloy, and a Cu-Al{sub 2}O{sub 3} alloy. Fatigue tests were run in strain control to failure. In addition to establishing failure lives, the stress amplitudes were monitored as a function of numbers of accrued cycles. The results indicate that the alloys with high initial yield strengths provide the best fatigue response over the range of failure lives examined in the present study: N{sub f} = 10{sup 3} to 10{sup 6}. In fact, the fatigue performance of the best alloys is dominated by the elastic portion of the strain range, as would be expected from the correlation of performance with yield properties. The alumina strengthened alloy and the two CuNiBe alloys show the best overall performance of the group examined here.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- OSTI ID:
- 270446
- Report Number(s):
- DOE/ER-0313/19; ORNL/M-5023; ON: DE96010874; TRN: 96:016893
- Resource Relation:
- Other Information: PBD: Apr 1996; Related Information: Is Part Of Fusion materials semiannual progress report for the period ending December 31, 1995; PB: 336 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Room temperature fatigue behavior of OFHC copper and CuAl25 specimens of two sizes
Fatigue performance and cyclic softening of F82H, a ferritic martensic steel