Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1498842 | Scripta Materialia | 2013 | 4 Pages |
Abstract
The strain-controlled fatigue behaviour of Ti–6Al–4V alloy with up to 0.11 wt.% B addition was investigated. Results show significant softening when the strain amplitudes, ΔεT/2, are ⩾0.75%. B addition was found to improve the fatigue life for ΔεT/2 ⩽ 0.75% as it corresponds to the elastic regime and hence is strength dominated. At ΔεT/2 = 1%, in contrast, the base alloy exhibits higher fatigue life as TiB particle cracking due to strain incompatibility causes easy crack nucleation in the B-modified alloys.
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Authors
Gaurav Singh, Raghuveer Gaddam, Vijay Petley, Ranjan Datta, Robert Pederson, Upadrasta Ramamurty,