Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5443346 | Scripta Materialia | 2017 | 8 Pages |
Abstract
Many additively manufactured (AM) materials have properties that are inferior to their wrought counterparts, which impedes industrial implementation of the technology. Bulk deformation methods, such as rolling, applied in-process during AM can provide significant benefits including reducing residual stresses and distortion, and grain refinement. The latter is particularly beneficial for titanium alloys where the normally seen large prior β grains are converted to a fine equiaxed structure - giving isotropic mechanical properties that can be better than the wrought material. The technique is also beneficial for aluminium alloys where it enables a dramatic reduction in porosity and improved ductility.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Paul A. Colegrove, Jack Donoghue, Filomeno Martina, Jianglong Gu, Philip Prangnell, Jan Hönnige,