Microstructure stability and damage mechanisms in an α/β Ti-6Al-4V-0.55Fe alloy during low cycle dwell-fatigue at room temperature
Source abstract
Abstract
Abstract The cyclic behavior and microstructure evolution of Ti-6Al-4V-0.55Fe alloy were investigated with three different total strain amplitudes. A slight softening was occurred with Δet/2 = 1.20%, and the alloy mainly suffered α recrystallization. Besides, a gentle softening can be observed with Δet/2 = 1.60%, which led to more substructure deformation. Furthermore, a sudden drop of the stress amplitude was occurred with Δet/2 = 4.00% which resulted in more plastic deformation. The phase transformation and α recrystallization were observed. Cracks were propagated along the α grain boundaries and the α/β lamellar interfaces due to the concentrated dislocations at the α/β lamellar interfaces.
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Research context
OpenAlex topics: Titanium Alloys Microstructure and Properties · Magnesium Alloys: Properties and Applications · Intermetallics and Advanced Alloy Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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