MT29 Abstracts and Technical Program

Thu-Mo-Po.06-07: Fatigue behavior of Cu-Zr alloys

3 Jul 2025, 08:45

2h

Ensemble Ballroom, Level 2

Poster Thu-Mo-Po.06 - Mechanical Behavior and Stress II

Speaker

Rongmei Niu

Description

Age-hardened Cu-Zr sheets are used in resistive magnetic field application. In this work, we studied the fatigue properties of Cu-Zr and Cu sheets. Three categories of Cu-Zr sheets with different strength were investigated and compared. Our investigation showed that their fatigue life was related to their ultimate tensile strength (UTS). Materials with higher UTS demonstrated longer fatigue life. At same UTS level, Cu-Zr sheets endured more fatigue cycles than cold deformed Cu (C101). We observed cyclic softening at the later stage of fatigue tests in both Cu-Zr and C101. The presence of Zr in Cu-Zr delayed the occurring of cyclic softening, comparing to C101.