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Metals and Materials International
Published in: Metals and Materials International 3/2019

22-11-2018

Microstructure and Properties of Novel Heat Resistant Al–Ce–Cu Alloy for Additive Manufacturing

Authors: D. R. Manca, A. Yu. Churyumov, A. V. Pozdniakov, A. S. Prosviryakov, D. K. Ryabov, A. Yu. Krokhin, V. A. Korolev, D. K. Daubarayte

Published in: Metals and Materials International | Issue 3/2019

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Abstract

The microstructure and properties of the novel heat resistant Al–3Ce–7Cu alloy produced by selective laser melting were investigated. Fine Al11Ce3 and Al6.5CeCu6.5 eutectic phases were found in the microstructure. Annealing at temperatures in the 250–400 °C range leads to a decrease in the hardness. Hardness has larger values after annealing at 350 and 400 °C than at 250 °C due to the precipitation of nanosized particles. The low hardness after quenching and aging at 190 °C is caused by quench stress relief and the absence of aging hardening because of poor solid solution. The as-printed yield strength, ultimate tensile strength and elongation are 274 MPa, 456 MPa and 4.4%, respectively. High mechanical properties of the Al–3Ce–7Cu alloy were demonstrated by high temperature tension and compression tests.
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Metadata
Title
Microstructure and Properties of Novel Heat Resistant Al–Ce–Cu Alloy for Additive Manufacturing
Authors
D. R. Manca
A. Yu. Churyumov
A. V. Pozdniakov
A. S. Prosviryakov
D. K. Ryabov
A. Yu. Krokhin
V. A. Korolev
D. K. Daubarayte
Publication date
22-11-2018
Publisher
The Korean Institute of Metals and Materials
Published in
Metals and Materials International / Issue 3/2019
Print ISSN: 1598-9623
Electronic ISSN: 2005-4149
DOI
https://doi.org/10.1007/s12540-018-00211-0

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