Generate QR code
Open Access
Subscription Access
Restoration and modification of products with high-entropy alloy CoCrFeNiMnW0.25 using additive technologies
https://doi.org/10.22349/1994-6716-2022-112-4-23-34
Abstract
The results of a study of the possibility of restoring and modifying the surface of products by direct laser growth using a powder of a high-entropy CoCrFeNiMnW0.25 alloy are presented. In the course of the work, a powder was obtained, the phase composition of which is represented by a single-phase solid solution with a face-centered cubic lattice, and the process of direct laser growth on a product prototype was studied. The applied coating is characterized by a higher hardness of 217.6 HV than the product material and a 22% lower weight loss during the anodic solubility test.
Keywords
direct laser growth,
high-entropy alloy,
powder metallurgy,
restoring and modifying,
corrosion-resistant coating
Supporting agencies: The work was supported by the grant of Russian Science Foundation No 19-79-30002.
About the Authors
D. V. Masailo
Peter the Great St Petersburg Polytechnic University
Russian Federation
Russian Federation
Cand Sc
195251 St Petersburg, Polytekhnicheskaya St, 29
N. G. Razumov
Peter the Great St Petersburg Polytechnic University
Russian Federation
Russian Federation
Cand Sc
195251 St Petersburg, Polytekhnicheskaya St, 29
E. V. Volokitina
Peter the Great St Petersburg Polytechnic University
Russian Federation
Russian Federation
195251 St Petersburg, Polytekhnicheskaya St, 29
A. A. Popovich
Peter the Great St Petersburg Polytechnic University
Russian Federation
Russian Federation
Dr Sc.
195251 St Petersburg, Polytekhnicheskaya St, 29
References
1. GOST R. 57558–2017: Additivnye tekhnologicheskie protsessy. Bazovye printsipy. Ch. 1. Terminy i opredeleniya [Additive technological processes. Basic principles. Part 1: Terms and definitions], Moscow: Standartinform, 2017.
2. Yeh, J.-W. et al., Nanostructured high-entropy alloys with multiple principal elements: Novel alloy design concepts and outcomes, Adv. Eng. Mater., 2004, V. 6, No 5, pp. 299–303.
3. Feuerbacher, M., Growth of high-entropy alloys. Crystal Growth of Intermetallics, Gille P., Grin Y., (Eds.), Berlin, Boston: De Gruyter, 2018, pp. 141–172.
4. Yeh, J.-W., Recent progress in high-entropy alloys, Ann. Chim. Sci. des Matériaux, 2006, V. 31, No 6, pp. 633–648.
5. Yeh, J.-W., Alloy Design Strategies and Future Trends in High-Entropy Alloys, JOM, 2013, V. 65, No 12, pp. 1759–1771.
6. Zhang, T., Inoue, A., Density, Thermal Stability and Mechanical Properties of Zr–Ti–Al–Cu– Ni Bulk Amorphous Alloys with High Al Plus Ti Concentrations, Materials Transactions, JIM, 1998, V. 39, Issue 8, pp. 857–862.
7. Inoue, A., Stabilization of metallic supercooled liquid and bulk amorphous alloys, Acta Mater., 2000, V. 48, No 1, pp. 279–306.
8. Dada M. et al., High Entropy Alloys for Aerospace Applications, Aerodynamics, IntechOpen, 2019. DOI:10.5772/intechopen.84982.
9. Praveen , S., Kim, H.S., High-Entropy Alloys: Potential Candidates for High-Temperature Applications: An Overview, Adv. Eng. Mater., 2018, V. 20, No 1, pp. 1–22.
10. Miracle, D.B. et al., Exploration and development of high entropy alloys for structural applications, Entropy, 2014, V. 16, No 1, pp. 494–525.
11. Qin, G. et al., An as-cast high-entropy alloy with remarkable mechanical properties strengthened by nanometer precipitates, Nanoscale, 2020, V. 12, No 6, pp. 3965–3976.
12. Li, Z. et al., Combinatorial metallurgical synthesis and processing of high-entropy alloys, J. Mater. Res., 2018, V. 33, No 19, pp. 3156–3169.
13. Nie, X.W., Cai, M.D., Cai, S., Microstructure and mechanical properties of a novel refractory high entropy alloy HfMoScTaZr, Int. J. Refract. Met. Hard Mater., Elsevier Ltd, 2021, V. 98, May, p. 105568.
14. Kang B. et al., Ultra-high strength WNbMoTaV high-entropy alloys with fine grain structure fabricated by powder metallurgical process, Mater. Sci. Eng. A, 2018, V. 712, September, 201.
Review
For citations:
Masailo D.V., Razumov N.G., Volokitina E.V., Popovich A.A. Restoration and modification of products with high-entropy alloy CoCrFeNiMnW0.25 using additive technologies. Voprosy Materialovedeniya. 2022;(4(112)):23-34. (In Russ.) https://doi.org/10.22349/1994-6716-2022-112-4-23-34
Views:
233
Email this article 