Journals →  Tsvetnye Metally →  2019 →  #12 →  Back

MATERIALS SCIENCE
ArticleName Understanding the structure of the ZhS32 alloy produced by selective laser melting and how it changes under high temperatures and stresses
DOI 10.17580/tsm.2019.12.09
ArticleAuthor Chabina E. B., Raevskikh A. N., Petrushin N. V., Slavin A. V.
ArticleAuthorData

All-Russian Scientific Research Institute of Aviation Materials, Moscow, Russia:

E. B. Chabina, Lead Researcher, Candidate of Technical Sciences, e-mail: chabinaeb@viam.ru
A. N. Raevskikh, Postgraduate Student, Grade II Engineer, e-mail: raevskih_anton@me.com
N. V. Petrushin, Principal Researcher, Doctor of Technical Sciences
A. V. Slavin, Head of the Testing Centre at the All-Russian Scientific Research Institute of Aviation Materials, Doctor of Technical Sciences

Abstract

Made by granules layer-by-layer selective laser melting on single-crystal substrates with crystallographic orientation <001> and <111> nickel-based superalloy ZhS32 structural-phase state at technological process various stages and during the long-term strength tests investigation results are presented. High-temperature homogenizing annealing, hot isostatic pressing and imitating operating conditions influence on the material structure forming and changing was studied. The material has a polycrystalline structure. γ'-phase particles in grains have generally a cubic form, but their orientation and the size differ in different grains. As a result of located on cells boundaries primary carbides dissolution disperse carbides were formed in grain body. Discrete particles — the large extended carbides and γ'-phases chains are located on grains boundaries. Consisting of γ'-phase coarse particles and carbides heterophase structure agglomerates, which size is commensurable with a grains size, are found in the material. During the long-term strength tests at 1050 oС temperature γ'-phases continuous cover was formed on grains boundaries. Grains boundaries extent and their disorder on width increase with temperature and tension action time on sample increase. In grains there is carbides additional precipitation, including lamellar morphology carbides. Polycrystalline nickel-based superalloy ZhS32 structure heterogeneity at high temperature and tension simultaneous influence is aggravated.

keywords Super heat-resistant nickel cast alloy, selective laser melting, stresses, cellular structure, γ'-phase, internal interfaces
References

1. Glezer G. M., Kachanov E. B., Kishkin S. T. et al. Advanced cast refractory alloys for gas turbine engine blades. Aviation materials at the turn of the 21st century: Reference book in science and technology. Moscow : VIAM, 1994. pp. 244–252.
2. Shalin R. E., Svetlov I. L., Kachanov E. B. et al. Monocrystals of refractory nickel alloys. Moscow : Mashinostroenie, 1997. 336 p.
3. Kablov E. N., Gerasimov V. V., Visik E. M., Demonis I. M. The role of directional solidification in the resource-saving production of gas turbine engine parts. Trudy VIAM. 2013. No. 3. p. 01. Available at: http://www.viamworks.ru (Accessed: 02.10.2018).
4. Iakovlev E. I. Prospective ways of development of directional solidification techniques for turbine blades manufacturing. Part 1. Tsvetnye Metally. 2017. No. 5. pp. 74–79.
5. Bakhteeva N. D., Vinogradova N. I., Petrova S. N., Pilyugin V. P. The structure of monocrystals in refractory nickel alloy after plastic deformation and heat application. Metallovedenie i termicheskaya obrabotka metallov. 2000. No. 10. pp. 26–29.
6. Kablov E. N. Trends and targets in the innovative development of Russia. Research papers. 3rd edition. Moscow : VIAM, 2015. 720 p.
7. E. N. Kablov, V. I. Lukin, B. S. Lomberg et al. Method of turbine blade repair. Patent RF, No. 2207238. Applied: 21.02.2002. Published: 27.06.2003.
8. V. I. Lukin, V. S. Rylnikov. A. I. Sidorov. Method for restoring surfaceflaw zones of parts of gas turbine engines. Patent RF, No. 2281845. Applied: 13.01.2005. Published: 20.08.2006.
9. Kablov E. N. The present and the future of additive technology. Metally Evrazii. 2017. No. 1. pp. 2–6.
10. Rickenbacher L., Etter T., Hövel S., Wegner K. High temperature material properties of IN738LC processed by selective laser melting (SLM) technology. Rapid Prototyping Journal. 2013. Vol. 19, No. 4. pp. 282–290.
11. Ströβner J., Terock M., Glatzel U. Mechanical and structural investigation of nickel-based superalloy IN718 manufactured by selective laser melting (SLM). Advanced Engineering Materials. 2015. Vol. 17, No. 8. pp. 1099–1105.
12. Basak A., Acharya R., Das S. Additive manufacturing of single-crystal superalloy CMSX-4 through scanning laser epitaxy: computational modeling, experimental process development, and process parameter optimization. Metallurgical and Materials Transactions A. 2016. Vol. 47, No. 8. pp. 3845–3859.
13. Smurov I. Yu., Movchan I. A., Yadroytsev I. A. et al. Additive manufacturing with the help of a laser. Vestnik of MSTU “Stankin”. 2011. Vol. 2, No. 4. pp. 144–146.
14. Grigoriev S. N. Russian manufacturing industry: Issues and Development Prospects. Spravochnik. Inzhenernyi zhurnal s prilozheniem. 2011. No. 12. pp. 3–7.
15. Carter L. N., Martin Ch., Withers Ph. J., Attallah M. M. The influence of the laser scan strategy on grain structure and cracking behavior in SLM powder-bed fabricated nickel superalloy. Journal of Alloys and Compounds. 2014. Vol. 615. pp. 338–347.
16. Petrushin N. V., Evgenov A. G., Zavodov A. V., Treninkov I. A. The structure and strength of the refractory nickel alloy ZhS32-VI produced by selective laser melting on a monocrystalline substrate. Materialovedenie. 2017. No. 11. pp. 19–26.
17. Raevskikh A. N., Chabina E. B., Petrushin N. V., Filonova E. V. Understanding the structural and phase transformations between the monocrystalline substrate and the SLM alloy ZhS32-VI after the impact of high temperatures and stresses. Trudy VIAM. 2019. No. 1 (73). p. 10. Available at: http://www.viam-works.ru (Accessed: 05.02.2019). DOI: 10.18577/2307-6046-2019-0-1-3-12.
18. Strano G., Hao L., Everson R. M., Evans K. E. Surface roughness analysis, modelling and prediction in selective laser melting. Journal of Materials Processing Technology. 2013. Vol. 213, No. 4. pp. 589–597.
19. Sufiiarov V. Sh., Popovich A. A., Borisov E. V., Polozov I. A. Selective laser melting of heat-resistant nickel alloy. Tsvetnye Metally. 2015. No. 1. pp. 79–84.
20. Sufiiarov V. Sh., Popovich A. A., Borisov E. V., Polozov I. A. Evolution of structure and properties of heat-resistant nickel alloy after selective laser melting, hot isostatic pressing and heat treatment. Tsvetnye Metally. 2017. No. 1. pp. 77–82.
21. Zavodov A. V., Petrushin N. V., Zaytsev D. V. The microstructure and phase composition of the refractory alloy ZhS32 after selective laser melting, vacuum heat treatment and hot isostatic pressing. Letters on Materials. 2017. No. 7 (2). pp. 111–116. DOI: 10.22226/2410-3535-2017-2-111-116.
22. GOST 10145–81. Metals. Stress rupture test method. Introduced: 02.09.1981.
23. Sims C. T., Stoloff N. S., Hagel W. C. Superalloys II: High-temperature materials for aerospace and industrial power. Moscow : Metallurgiya, 1995. 384 p.
24. Kablov E. N. Innovations developed by VIAM in accord with “Strategic development areas for materials and processing technology for the period till 2030”. Aviatsionnye materialy i tekhnologii. 2015. No. 1 (34). pp. 3–33. DOI: 10.18577/2071-9140-2015-0-1-3-33.

Language of full-text russian
Full content Buy
Back