The effects of machined workpiece surface integrity on the fatigue life of γ-titanium aluminide
Sharman ARC., Aspinwall DK., Dewes RC., Clifton D., Bowen P.
Tension-tension tests on turned, electro-chemical machined (ECM) and electro-discharge textured (EDT) specimens made from Ti-45Al-2Nb-2Mn+0.8 vol% TiB2 alloy, showed the turned specimens to have a higher fatigue strength ∼475 MPa. It is likely that this was due to the presence of highly compressive surface residual stresses caused by the turning operation. © 2001 Elsevier Science Ltd.