Email this article Analysis of Structure and Mechanical Properties of Co–Cr–Mo Alloy Obtained by 3D Printing
- Authors: Kazantseva N.V.1,2, Ezhov I.V.1, Davydov D.I.1, Merkushev A.G.2
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Affiliations:
- Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
- Ural Federal University Named after the First President of Russia B.N. Yeltsin
- Issue: Vol 120, No 12 (2019)
- Pages: 1172-1179
- Section: Structure, Phase Transformations, and Diffusion
- URL: https://bakhtiniada.ru/0031-918X/article/view/168862
- DOI: https://doi.org/10.1134/S0031918X19120081
- ID: 168862
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Abstract
Abstract—A comparative study was performed of microstructure and strength characteristics of the Co–Cr–Mo alloy obtained by the additive manufacturing (AM) method using selective laser melting (SLM) in the EOSINT M280 3D printer and by arc melting in a helium atmosphere. The occurrence of a martensitic transformation in SLM samples was detected. It was found by nanoindentation that the microhardness HIT of the SLM alloy is higher than that of the cast alloy, which is likely due to the high level of surface residual stresses in the SLM sample. It was found that the SLM alloy has a two-phase (fcc + hcp) structure after standard annealing, in contrast to the cast alloy, which retains a single-phase fcc structure after such annealing.
About the authors
N. V. Kazantseva
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin
Author for correspondence.
Email: kazantseva-11@mail.ru
Russian Federation, Ekaterinburg, 620108; Ekaterinburg, 620002
I. V. Ezhov
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: kazantseva-11@mail.ru
Russian Federation, Ekaterinburg, 620108
D. I. Davydov
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: kazantseva-11@mail.ru
Russian Federation, Ekaterinburg, 620108
A. G. Merkushev
Ural Federal University Named after the First President of Russia B.N. Yeltsin
Email: kazantseva-11@mail.ru
Russian Federation, Ekaterinburg, 620002
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