Fatigue of polycrystalline copper with different grain sizes and texture

Fatigue crack initiation and crystallographic growth in 316L stainless steel

“…This is in agreement with the measurement performed in Ref. [18]. There are, however, another group of authors who suggest that the endurance limit increases with decreasing grains size due to the increase in yield stress as a result of HallPetch effect [3].…”

Evaluation of multiaxial fatigue life prediction criteria for PEEK

“…Considering the material constant a determined previously, the crack behavior can be deemed as the mixed behavior as it closely approximate 0.37 which is the critical value for mixed cracking behavior. In general, a material usually displays on type of cracking behavior, however, as reported many materials could display mixed cracking behavior [33,36,46,47]. As the cracking behavior is material and loading magnitude dependent, the material investigated in this paper is totally possible to display mixed cracking behavior.…”

An experimental study of cyclic deformation of extruded AZ61A magnesium alloy

“…Such a result is in strong contrast to the significant nonproportional hardening observed in FCC metals such as pure copper. In polycrystalline pure copper, even though strong texture exists, the material shows significant nonproportional hardening (Zhang and Jiang, 2006). One possible reason for the lack of nonproportional hardening in HCP metals is that only a limited number of slip systems can be activated and the interaction among dislocations from different slip systems is minimal.…”