The fatigue response and fracture behavior of a spray atomized and deposited aluminum-silicon alloy

In this article the results of a recent study designed ta improve our under standing of the cyclic fatigue and fracture characteristics of a spray atomized and deposited hypereutectic aluminum-silicon alloy are presented, Specimens of the alley were cyclically deformed to failure at ambient temperature under fully reversed fetal strain amplitude controlled tension-compression loading, The alloy exhibited low cyclic plasticity and fatigue life under total strain amplitude controlled deformation, Cyclic stress amplitude controlled high-cycle fatigue characteristics were established at an elevated temperature (150 degrees C). The cyclic stress response, high-cycle fatigue life and fracture characteristics of the alloy ape compared with a conventional ingot metallurgy processed counterpart and discussed its. light of intrinsic microstructural features, nature and magnitude of stress, and ductility of the material.