Bulk-like ductility of cold spray additively manufactured copper in the as-sprayed state

0560192 - ÚFP 2023 RIV NL eng J - Journal Article
Singh, R. - Kondás, J. - Bauer, Ch. - Čížek, Jan - Medřický, Jan - Csáki, Štefan - Čupera, J. - Procházka, R. - Melzer, D. - Konopník, P.
Bulk-like ductility of cold spray additively manufactured copper in the as-sprayed state.
Additive Manufacturing Letters. Roč. 3, December (2022), č. článku 100052. ISSN 2772-3690
R&D Projects: GA ČR(CZ) GA22-14048S
Institutional support: RVO:61389021
Keywords : copper * cold spray * bulk
OECD category: Materials engineering
Method of publishing: Open access
https://www.sciencedirect.com/science/article/pii/S2772369022000263?via%3Dihub

In recent years, cold spray process is increasingly used for additive manufacturing of metallic components, referred to as cold spray additive manufacturing (CSAM). Unlike the fusion-based AM processes, CSAM is achieved in a solid-state, bringing several advantages such as the absence of severe oxidation or phase composition changes. At the moment, the main limitation of CSAM is the generally low ductility of the as-sprayed deposits. In this paper, using Cu as a model material, we demonstrate a way to overcome this limitation. Importantly, a high ductility of the deposits in their as-sprayed state is achieved without a trade-off in mechanical strength. Furthermore, we show that without any post-heat treatment, the properties of CSAM Cu are comparable to bulk, non-AM Cu.
Permanent Link: https://hdl.handle.net/11104/0333199