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Title: Effect of overload on the fatigue crack propagation in metastable beta Ti-V alloys

Journal Article · · Metall. Trans., A; (United States)
OSTI ID:6364363

The effects of overload on the fatigue crack propagation behavior of two Ti-V alloys having different deformation mechanisms were studied. The results are explained in terms of residual stress effects associated with the overload and the removal of these stresses during post-overload cycling. An additional effect occurs during multiple cycle overload when the deformation structure representative of the strain amplitude is believed to form in the overload reverse plastic zone. This structure must be rearranged during cycling at Delta Kb before the baseline FCGR is reached and the process is responsible for part of the delay period. 46 references.

Research Organization:
Norfolk General Hospital, VA
OSTI ID:
6364363
Journal Information:
Metall. Trans., A; (United States), Vol. 15A
Country of Publication:
United States
Language:
English