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Machine-building technologies
Название Surfacing of stamping tools with subsequent nitrocarburizing for their effective restoration
DOI 10.17580/chm.2022.02.10
Автор N. A. Kostin, E. V. Trusova, V. I. Kolmykov, N. N. Kostin
Информация об авторе

Kursk State University, Kursk, Russia:

N. A. Kostin, Cand. Eng., Associate Professor, Dept. of General Technical Disciplines and Life Safety, e-mail: nikolay-kostin@yandex.ru
E. V. Trusova, Cand. Eng., Associate Professor, Dept. General Technical Disciplines and Life Safety, Candidate of Engineering Sciences, e-mail: ev.trusova@yandex.ru


The Southwest State University, Kursk, Russia.
V. I. Kolmykov, Dr. Eng., Associate Professor, Dept. of Machine-Building Technologies and Equipment, e-mail: kolmikov@yandex.ru
N. N. Kostin, Student


The possibility of restoration and hardening of stamping tools by surfacing them with special electrodes OZSh-1 and TsN-4 with subsequent nitrocarburizing is shown. The microstructure of nitrocarburized surfacings on transverse sections was studied using a Quanta 650 FEG microscope by scanning electron microscopy. The dependence of the abrasive wear of the deposited coatings on the carbonitriding temperature has been experimentally established. It has been established that the increased wear resistance of nitrocarburized surfacings is due to the characteristics of the carbonitride structure of the diffusion layers, which depend on the alloying of the deposited metal and on the nitrocarburizing modes. The features of chemical-thermal treatment in a highly active nitrogen-carbon paste, which leads to the formation of diffusion layers with excess carbonitrides having high hardness on the surface of the deposited metal, are considered. The high efficiency of a pasty coating based on amorphous carbon and nitrogencontaining components (urea and potassium ferricyanide) has been experimentally shown. It has been established that for the restoration of small die tools with small allowable wear, it is advisable to use chromium-molybdenum surfacing with an OZSh-1 electrode, nitrocarburized at a temperature of 700 °C, for large-sized dies, manganese surfacing TsN-4. At the same time, carbonitriding of manganese coatings deposited with TsN-4 electrodes must be carried out at a temperature of 900 °C in order to obtain carbonitride layers of great depth on the surface of the restored stamps.

Ключевые слова Deposited coatings, nitrocarburizing, carbonitrides, wear, nitrogen-carbon paste, structure, stamp
Библиографический список

1. Gurev А. М., Garmaeva I. А., Mosorov V. I., Mizhitov А. Ts., Lygdenov B. D. Surface hardening of cast steel dies. Sovremennye naukoemkie tekhnologii. 2007. No. 6. pp. 32, 33.
2. Kulikovskiy R. А. Restoration of mold dies by hardfacing. Novi materiali i tekhnologii v metallugii ta mashinobuduvanii. 2012. No. 2. pp. 67–70.
3. Orlik A. G., Chernyshev G. G. Development of the technology for mechanized arc surfacing of a coating with a given set of properties that is resistant to hydroabrasive wear. Mashinostroenie. 2012. No. 8. pp. 53–57.
4. Ivanov А. S., Bogdanov М. V. Optimization of carburizing and heat treatment technology for low-carbon martensitic steels. Metallovedenie i termicheskaya obrabotka metallov. 2016. No. 2. pp. 59–62.
5. Kostin N. A. Pack cyaniding of steel 6KH4M2FS in order to increase heavily-loaded die durability. Metal Science and Heat Treatment. 2020. Vol. 62. No. 5–6. pp. 331–335.
6. Kostin N. A., Kolmykov V. I., Kostin N. N. Method of carbonitriding parts made from structural and tool steels. Patent RF. No. 2592339. Published: 20.07.2016. Bulleten No.20.
7. Kostin N. A., Kolmykov V. I., Kostin N. N. Method of carbonitriding parts made from structural and tool steels. Patent RF. No. 2586178. Applied: 16.03.2015. Published: 10.06.2016. Bulleten No. 16.
8. Kostin N. A. Features of hardening of 5KhGS and 5Kh3GS die steels carburized to hypereutectoid concentrations. Chernye Metally. 2020. No. 5. pp. 31–36.
9. Kostin N. A., Trusova Е. V. Use of nitrocarburized steel ShKh15 as a material for stamping tools. Voprosy materialovedeniya. 2017. No. 1. pp. 31–37.
10. Wendt P. Innovations of LOI Thermprocess in the field of heating, cooling and heat treatment. Chernye Metally. 2016. No. 5. pp. 54–57.
11. Khlybov А. А., Ryabov D. А., Nuzhdina Т. V. Effect of thermal treatment on formation of residual stresses and the method of their determination in samples from 5KhNM steel. Chernye Metally. 2019. No. 5. pp. 61–66.
12. Köhnen P., Haase Ch., Bültmann J., Ziegler S., Schleifenbaum J., Bleck W. Mechanical properties and deformation behavior of additively manufactured lattice structures of stainless steel. Materials Design. 2018. Vol. 145. pp. 205–2017.
13. Knyazyuk T. V., Petrov S. N., Ryabov V. V., Khlusova E. I. Structure of a wear-resistant mediumcarbon steel after hot deformation in hammer dies and heat treatment. Metal science and heat treatment. 2018. No. 9–10. pp. 556–563.
14. Priymak Е. Yu., Stepanchukova А. V., Yakovleva I. А., Tereshchenko N. А., Chirkov Е. Yu. Influence of carbonitration on the susceptibility to temper brittleness of medium carbon alloy steels. Metallovedenie i termicheskaya obrabotka metallov. 2017. No. 4. pp. 48–54.
15. Mordasov D. М., Zotov S. V. Thermal cycling treatment of dies from Kh12MF steel for operation under hot deformation conditions. Vestnik Tambovskogo gosudarstvennogo tekhnicheskogo universiteta. 2016. pp. 481–490.
16. Mosecker L., Pierce D. T., Schwedt A., Beighmohamadi M., Mayer J., Bleck W., Wittig J. E. Temperature effect on deformation mechanisms and mechanical properties of a high manganese C + N alloyed austenitic stainless steel. Materials Science and Engineering: A. 2015.Vol. 642. pp. 71–83.
17. Bennati S., Fisicaro P., Valvo P. S. An elastic-interface model for the mixed-mode bending test under cyclic loads. Procedia Structural Integrity. 2016. Vol. 2. pp. 72–79.
18. Lin Shuang, Wang Dongpo, Li Chengning, Liu Xinguo. Effect of cyclic plastic deformation on microstructure and mechanical properties of weld metals used for reel-lay pipeline steels. Materials Science and Engineering: A. 2018. Vol. 737.pp. 77–84.
19. Shakhmatov A. V., Badrak R. P., Kolesov S. S. Influence of structure on the corrosion properties of high manganese high nitrogen stainless steel. Proceedings of the European corrosion congress "Eurocorr 2015", 2015. pp. 1–10.
20. Fiore Nikolas F., Coyle J., Udvardy Stephen P., Kosei Thomas H., Konkel William A. Abrasive wear-microstructure interactions in a Ni-Cr white iron. Wear. 1980. No. 2. pp. 387–404.

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