Email this article Microstructure and Mechanical Properties of Objects Prepared by Selective Laser Melting of AKD12 Powder
- Authors: Fefelov A.S.1, Merkushev A.G.1, Chikova O.A.1, Finkel’shtein A.B.1
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Affiliations:
- FGAOU VO B. N. El’tsin Ural Federal University
- Issue: Vol 62, No 5-6 (2018)
- Pages: 470-475
- Section: Article
- URL: https://bakhtiniada.ru/0026-0894/article/view/241872
- DOI: https://doi.org/10.1007/s11015-018-0683-1
- ID: 241872
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Abstract
The morphology and elemental composition of Al–12% Si powder grade AKD12 of three fractions are studied. Powder is prepared in an original molten metal gas spraying unit UR-9 in a high-purity nitrogen atmosphere. Results are provided for measurement of mechanical properties, a study of outer surface morphology and the failure surface of objects prepared by selective laser melting from AKD12 powder fraction less than 45 μm. It is shown that the mechanical properties of these objects surpass these indices for analogs produced overseas, i.e., ultimate strength σu = 245 MPa with relative elongation δ = 12%.
About the authors
A. S. Fefelov
FGAOU VO B. N. El’tsin Ural Federal University
Author for correspondence.
Email: a.s.fefelov@urfu.ru
Russian Federation, Ekaterinburg
A. G. Merkushev
FGAOU VO B. N. El’tsin Ural Federal University
Email: a.s.fefelov@urfu.ru
Russian Federation, Ekaterinburg
O. A. Chikova
FGAOU VO B. N. El’tsin Ural Federal University
Email: a.s.fefelov@urfu.ru
Russian Federation, Ekaterinburg
A. B. Finkel’shtein
FGAOU VO B. N. El’tsin Ural Federal University
Email: a.s.fefelov@urfu.ru
Russian Federation, Ekaterinburg
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