Influence of the parameters of hydrogen nitrogen nitrogen in a glow discharge on tribological and physico-chemical properties of steel 40X

Authors

  • N.M. Stechishina Khmelnytsky National University
  • M.S. Stechishin Khmelnitskyi National University
  • A.V. Martynyuk Khmelnitskyi National University
  • N.V. Lukianyuk Khmelnitskyi National University
  • V.V. Lyukhovets Khmelnitskyi National University
  • Yu. Bilyk Khmelnitskyi National University

DOI:

https://doi.org/10.31891/2079-1372-2021-101-3-31-41

Keywords:

non-hydrogen nitriding in a glow discharge (BATR); wear resistance of nitrided balls; phase composition; voltage; current density; specific power of the discharge

Abstract

One of the modern and effective methods of hardening metals is nitriding in a glow discharge in ammonia or in an anhydrous medium (nitrogen + argon) - BATR. This paper presents the results of experimental studies comparing the results of tribological and physicochemical properties of hardened surfaces obtained by nitriding with autonomous and interconnected BATR modes. The complex of traditionally fixed values of operating parameters (temperature, composition of the gas mixture, pressure and saturation time) without taking into account energy characteristics (voltage, current density and specific discharge power) significantly reduces the technological capabilities of BATR to achieve the necessary physicochemical properties of metal surfaces specified by conditions exploitation. Taking into account the energy characteristics of BATR, a significant reduction in the energy consumption of the nitriding process is achieved. The energy levels of the main subprocesses are significantly different: the formation of nitrides occurs at low energies, surface sputtering occurs at high voltage values, and nitrogen diffusion occurs at increased current density values. In cases where the energy of the flow is insufficient, either a glow discharge may not occur at all, or with a lack of voltage, the nitride ball on the surface is not sprayed and it acts as a barrier that prevents the diffusion process into the inner layers of the metal, which leads to low physicochemical and, correspondingly, tribological indicators of nitrided balls. The quantitative ratio between them and the required operational properties of the metal, respectively, can be achieved only through an independent combination of the energy and operating characteristics of BATR

References

1. Kaplun V. G. Ionic nitriding in hydrogen-free media: monograph / V. G. Kaplun, P. V. Kaplun. - Khmelnitsky: KhNU, 2015.
2. Steel Heat Treatment. Metallurgy and Technologies / edited by G. E. Totten. - Portland, Oregon, USA: Taylor & Francis Group, 2006.
3. Pastukh IM Theory and practice of anhydrous nitriding in a glow discharge / IM Pastukh. - Kharkov: NSC KIPT, 2006.
4. Stechyshyn M.S. Influence of the Ionic Nitriding of Steels in Glow Discharge on the Structure and Properties of the Coatings / Stechyshyn, M.S., Martynyuk, A.V., Bilyk, Y.M., Oleksandrenko, V.P., Stechyshyna, N.M. // Materials Science. - 2017 .-- 53 (3). - pp. 343 - 349.
5. Ionic chemical-thermal treatment of alloys / BN Arzamasov, AG Bratukhin, Yu.S. Eliseev, TA Panayoti. - M.: Publishing house of MSTU im. N.E.Bauman, 1999.
6. Pye D. Practical Nitriding and Ferritic Nitrocarburizing / D. Pye. - Ohio - ASM International, 2003.
7. Sokolova GM Energetic aspects of the model of nitrogen gas in the light / GM Sokolova. Sokolova, I. M. Pastukh // Physical and chemical mechanics of materials. - 2017. - T. 53, No. 3. - P. 71–75.
8. Skiba M.Є. Pre-treatment of the processes of waterless nitrogen treatment in a glowing discharge / M.Є. Skiba, M.S. Stechishin, V.P. Oleksandrenko, V.S. Kurskaya, A.V. Martinyuk // Problems of tribology. - Khmelnitsky. - 2018. - No. 2. - S.6-16.
9. Lakhtin Yu.M., Kogan Ya.D. Structure and strength of nitrided alloys. - M .: Metallurgy, 1982.
10. Stechyshyn, M. S., Stechyshyna, N. M., Martynyuk, A. V., Luk'yanyuk, M. M. Strength and Plasticity of the Surface Layers of Metals Nitrided in Glow Discharge. (2018) Materials Science,. Article in Press.
11. M. S. Stechyshyn, N. M. Stechyshyna, V. S. Kurskoi. Corrosion and Electrochemical Characteristics of the Metal Surfaces (Nitrided in Glow Discharge) in Model Acid MediaMarch 2018, Volume 53, Issue 5, pp 724–731.
12. Stechishin MS Vtomna vitrival_nitovannyh spheres in the corrosive-active centers of grub wyrobnitstv / M.S. Stechishin, M.Є. Skiba, Yu.G. Sukhenko, M.I. Tsepenyuk // FHMM: Lviv. - 2019. - T.55. - No. 1. - S. 125-129.
13 Keller K. Schichtaufbau glimmnitrierten Eisen Werkstoffe / K. Keller // Harterei-Technische Mitteilung. - 1971. - Bd. 26, No. 2. - S. 120-128

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Published

2021-09-24

How to Cite

Stechishina, N., Stechishin, M., Martynyuk, A., Lukianyuk, N., Lyukhovets, V., & Bilyk, Y. (2021). Influence of the parameters of hydrogen nitrogen nitrogen in a glow discharge on tribological and physico-chemical properties of steel 40X. Problems of Tribology, 26(3/101), 31–41. https://doi.org/10.31891/2079-1372-2021-101-3-31-41

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