The Influence of the Back Stress (X) and the Hardening Rate (dX/Xεpqe) on Void Nucleation in α/β Titanium Alloys A.L. Helbert, X. Feaugas et M. Clavel J. Phys. IV France, 06 C6 (1996) C6-101-C6-111 DOI: 10.1051/jp4:1996610