#7734. Exploiting lack of fusion defects for microstructural engineering in additive manufacturing

October 2026publication date
Proposal available till 24-05-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Engineering (miscellaneous);
Industrial and Manufacturing Engineering;
Biomedical Engineering;
Materials Science (all);
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Abstract:
Rapid cooling rates and stochastic interactions between the heat source and feedstock in additive manufacturing (AM) result in strong anisotropy and process-induced defects deteriorating the tensile ductility and fatigue resistance of printed parts. We show that by deliberately introducing a high density of lack of fusion (LoF) defects, a processing regime that has been avoided so far, followed by hot isostatic pressing (HIP), we can print Ti-6Al-4V with reduced texture and combinations of strength and ductility.
Keywords:
Additive manufacturing; Damage tolerant; Duplex microstructures; Engineered microstructure; Laser powder bed fusion; Titanium alloy

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