Cyclic deformation of commercial-purity titanium

The response of polyorystalline, commercial-purity α-titanium to reversed cyclic deformation was examined and the macroscopic mechanical behavior correlated with the development of characteristic dislocation structures. Tests were conducted on samples having uniform grain sizes ranging from 7 to 80 μm, and at constant plastic strain amplitudes between ± 0.0000 and ± 0.01. While the influence of grain size on fatigue life at constant stress...