Crystallographic selection rule for the propagation mode of microstructurally small fatigue crack in a laminated Ti-6Al-4V alloy: Roles of basal and pyramidal slips
Source abstract
Abstract
Abstract We investigated the microstructurally small fatigue crack growth (FCG) in a fully laminated Ti-6Al-4V alloy. Basal slip only causes Mode II FCG, which is the predominant FCG mechanism in the present alloy. However, when the basal plane was aligned approximately parallel to the notch/crack surface, Mode I or II FCG was activated by pyramidal slip. When a single pyramidal slip system was activated, Mode II FCG on the pyramidal slip also occurred. The shear stress on the basal plane strongly depends on the geometrical relationship between the basal plane and the notch/crack alignment, which caused scatter in the fatigue life.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Titanium Alloys Microstructure and Properties · Advanced Welding Techniques Analysis · Microstructure and Mechanical Properties of Steels
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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