Article ID Journal Published Year Pages File Type
1498211 Scripta Materialia 2015 4 Pages PDF
Abstract

A largest elongation of 728% was achieved in a nugget of a friction-stir-welded (FSW) Ti–6Al–4V alloy joint with a fully lamellar microstructure; this is much larger than the maximum elongation ever reported in fusion-welded nuggets (<400%). This superior superplasticity in FSW nugget vs. fusion-welded nugget was mainly attributed to easier globularization of the lamellae with smaller thickness (172 nm) and aspect ratio (8.1) in the FSW nugget during preheating and superplastic deformation.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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