Formation of equiaxed α during ageing in a severely deformed metastable β Ti alloy. (November 2016)

• Record Type: Journal Article
• Authors: Zafari, A.; Xia, K.
• Is Part Of: Scripta materialia. Volume 124(2016)
• Page Start: 151
• Page End: 154
• Publication Date: 2016-11
• Subjects: Equiaxed microstructure -- Orientation relationship -- Severe plastic deformation -- Titanium alloys -- Precipitation; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2016.07.012
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Careful TEM examination has confirmed the formation of equiaxed α in nanocrystalline β during ageing of a severely deformed metastable β Ti alloy. It is revealed that the Burgers orientation relationship is obeyed upon α nucleation, but grain growth has led to the eventual incoherent α/β interfaces. In addition, intragranular acicular α would form when the β grains prior to ageing are much coarser than ~ 10 nm. Graphical abstract: