Article ID Journal Published Year Pages File Type
1600012 Intermetallics 2015 7 Pages PDF
Abstract
The deformation mechanisms associated with different fracture surface appearances of a fatigue tested lamellar TiAl-based alloy have been studied in detail by focussed ion beam and transmission electron microscopy. The results show that linear markings within translamellar plates correspond to twins and/or slip bands. The markings in interlamellar region are associated with the crack propagation from a lamellar boundary to another. The fan-like region with linear markings belongs to a γ grain and the markings are related to twins. Intralamellar crack propagation is associated with twin-twin interaction within a γ lamella.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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