Journal
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volume 214, Issue 12, Pages 3108-3111Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2014.07.011
Keywords
Additive manufacturing; Icosahedral Al-Cu-Fe-B; Complex metallic alloys; Phase transformations
Funding
- Ateliers CINI SA (Tomblaine, France)
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This article addresses a still-open question in additive manufacturing of lightweight metallic components. We find that using Al-based quasicrystalline particles allows extending the selective laser sintering technology to produce Al-based parts of any complex shape. The process consists in selectively melting a powder blend containing a binder and quasicrystalline particles to construct a three-dimensional preform. In a second step, the pre-form is infiltrated by a conventional aluminium alloy in a furnace through a thermal cycle under an inert atmosphere. The aluminium alloy reacts with the quasicrystalline particles, inducing phase transformations and ending with a manufactured product of good mechanical properties that is harmless to the environment and cost-effective. (C) 2014 Elsevier B.V. All rights reserved.
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