Abstract
To investigate the effects of environment on fatigue strength, commercially pure aluminum wires of 1mm diameter was employed for the fatigue tests. By electrolytic polishing, the minimum diameter of 0.20mm or 0.30mm was employed. The frequency of the cyclic force was 50 Hz with the stress ratio of 0.1. It was found that the variations in fatigue life at the same stress amplitude were large, and the effect of the diameter on fatigue life was not observed. There were two types of fracture morphology in both distilled water and 3%NaCl aqueous solution.
