Low Cycle Fatigue Behavior of Titanium Disc Alloys

摘要

The paper describes the low cycle fatigue behavior of the titanium alloys IMI685, Ti-17 and Ti-6A1-4V tested in the AGARD Engine Disc Cooperative Test Programme. Load controlled low cycle fatigue tests were carried out on smooth cylindrical and flat double edge notched specimens at room temperature. The test results were statistically analyzed and discussed. The tests showed that the differences in low cycle fatigue behavior between IMI 685 and Ti-6A1-4V are negligible and that Ti-17 has superior low cycle fatigue properties.