Abstract
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 ΔK b before the baseline FCGR is reached and the process is responsible for part of the delay period.
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Formerly Research Scientist at Georgia Institute of Technology.
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Lee, E.W., Chakrabortty, S.B. & Starke, E.A. The effect of overload on the fatigue crack propagation in metastable beta Ti-V alloys. Metall Trans A 15, 511–517 (1984). https://doi.org/10.1007/BF02644975
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DOI: https://doi.org/10.1007/BF02644975