Thermomechanical fatigue behavior of annealed Cu-Cr-Zr-Ti alloy in argon atmosphere

Rao, G. Sudarshan; Srinath, J.; Raman, S. Ganesh Sundara; Sharma, Vikram; Narayanan, P. Ramesh; Tharian, K. Thomas; Pant, Bhanu; Cherian, Roy M.

doi:10.1016/j.msea.2017.08.017

Cited by 3 publications

(1 citation statement)

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“…Shangina et al 22 studied the factors affecting the fatigue performance of Cu‐Cr‐Hf alloy prepared by ECAP and found that the ultrafine‐grained structure and aging precipitation have a positive effect on the mechanical and fatigue properties of the alloy. The study carried out by Rao et al 36,37 showed low cycle fatigue behavior of Cu‐Cr‐Zr‐Ti alloy under argon atmosphere was related to the test temperature and the precipitation of Cr phase. There was also research on the thermally fatigue behavior of Cu‐Cr‐Zr alloy in high heat flux components of Tokamak and its subsystems 38,39 .…”

Section: Introductionmentioning

confidence: 99%

Low cycle fatigue behavior of Cu‐Cr‐Zr alloy with different cold deformation

Chen

Xiao

Xiong

et al. 2022

Fatigue Fract Eng Mat Struct

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The present study addressed the cyclic deformation behavior and fatigue properties of Cu‐0.69Cr‐0.07Zr alloy with different cold deformation (ε = 64%, 75%, and 84%) using low cycle fatigue test. Low cycle fatigue tests were conducted under fully‐reversed conditions at different total strain amplitudes. The microstructure changes and fatigue fracture characteristics were analyzed by scanning electron microscope (SEM) and transmission electron microscope (TEM). The main findings suggest that the Bauschinger effect was significantly stronger with larger deformation at low total strain amplitude. And it was proved that the relationship between the total strain amplitude and the low cycle fatigue life of Cu‐Cr‐Zr alloy with different deformation can be expressed by the Manson–Coffin–Basquin formula. Further, the reason for the fatigue life was shorter and the cyclic softening rate decreased faster at high applied total strain amplitude was that the dislocation density decreased due to the rearrangement of the dislocations.

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Section: Introductionmentioning

confidence: 99%