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The effects of machined workpiece surface integrity on the fatigue life of γ-titanium aluminide

✍ Scribed by A.R.C Sharman; D.K Aspinwall; R.C Dewes; D Clifton; P Bowen

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
242 KB
Volume
41
Category
Article
ISSN
0890-6955

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✦ Synopsis

Tension-tension tests on turned, electro-chemical machined (ECM) and electro-discharge textured (EDT) specimens made from Ti-45Al-2Nb-2Mn+0.8 vol% TiB 2 alloy, showed the turned specimens to have a higher fatigue strength ෂ475 MPa. It is likely that this was due to the presence of highly compressive surface residual stresses caused by the turning operation.

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