Fatigue Behavior of Diffusion Bonded Ti-6A1-4V Having Very Small Defects
Diffusion bonding is presently under development as a manufacturing process for large complex structures. It is particularly advantageous for titanium alloy structures due to titanium’s ability to dissolve its own oxide, and it overcomes the problem associated with low hardenability and poor grain refinement in heavy sections. The size and complexity of aircraft parts frequently require immense slabs of plate material or huge forgings, the latter requiring very large presses, which in turn are machined to a small fraction of the original weight. Fabrication of a large complex shape by diffusion bonding offers the potential of immediate savings in material and machining requirements.
KeywordsFatigue Life Fatigue Behavior Small Defect Diffusion Bond Fatigue Specimen
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