Development of the high-speed boriding technology of alloy steel

Authors

  • Катерина Олександрівна Костик National technical University «Kharkiv Polytechnic Institute» Frunze, 21, Kharkіv, Ukraine, 61002, Ukraine https://orcid.org/0000-0003-4139-9970

DOI:

https://doi.org/10.15587/1729-4061.2015.55015

Keywords:

boriding, steel, diffusion layers, microhardness, layer depth, mathematical model, nomogram

Abstract

The aim of the paper is to develop an easy-to-use and energy-efficient boriding nanotechnology of alloy steel parts, which is aimed at reducing the thermochemical treatment duration in obtaining high-quality boride layers, providing the necessary performance characteristics. The method of solving the problem was to find the optimum treatment temperature and time, and the influence of boriding process parameters on the hardened layer depth and hardness was studied for estimating the parameters characteristic of the diffusion layers. The research material was steel 30KhGSA. For paste boriding, the mixture based on nanodispersed boron-containing compounds was used. Heating was performed in a box furnace for 15 up to 120 minutes at temperatures ranging from 800 to 900°С. It was found that the increase in boriding temperature and time leads to the growth of borated layers and the transition zone. Paste boriding provides a surface hardness within 22-20 GPa with the decrease to 18-16 GPa along the layer to the transition zone. The obtained mathematical model and nomogram allow to determine the specific conditions of boriding (temperature and duration) based on a given layer depth of borides, which is of great practical importance. The resulting dependence of the experimental effective diffusion coefficient of boron for alloy steel confirmed the threefold acceleration of the boriding process. The practical significance of the work lies in the fact that the developed technology can be used on plants without having to install additional and update existing equipment. Thus, a new high-speed boriding method, allowing to carry out processing to produce high-quality diffusion layers was proposed.

Author Biography

Катерина Олександрівна Костик, National technical University «Kharkiv Polytechnic Institute» Frunze, 21, Kharkіv, Ukraine, 61002

Candidate of technical Sciences, associate Professor

Department of Foundry production

References

  1. Czerwinski, F. (2012). Thermochemical Treatment of Metals. Heat Treatment – Conventional and Novel Applications, 73–112. doi: 10.5772/51566
  2. Kulka, M., Makuch, N., Pertek, A., Piasecki, A. (2012). Microstructure and properties of borocarburized and laser–modified 17CrNi6–6 steel. Optics and Laser Technology, 44 (4), 872–881. doi: 10.1016/j.optlastec.2011.11.016
  3. Aghaie–Khafri, M. Mohamadpour, M. (2012). A study of chromo–boronizing on DIN 1.2714 steel by duplex surface treatment. Journal of Metals, 64 (6), 694–701. doi: 10.1007/s11837–012–0337–x
  4. Kartal, G., Kahvecioglu, O., Timur, S. (2006). Investigating the morphology and corrosion behavior of electrochemically bo rided steel. Surface and Coating Technologies, 200 (11), 3590–3593. doi: 10.1016/j.surfcoat.2005.02.210
  5. Veropaha, N. V., Veropaha, D. N., Skorikov, A. V. et al. (2006). Vlijanie zhidkostnogo borirovanija na iznoso– i korrozionnuju stojkost' dlinnomernyh izdelij. Izvestija vuzov. Severo–Kavkazskij region. Serija : Tehnicheskie nauki, Spec. vyp.: Aktual'nye problemy mashinostroenija, 20–21.
  6. Aliev, A. A., Bulgakov, V. P., Prihod'ko, B. S. (2005). Diffuzionnoe borirovanie stali i sherohovatost' poverhnosti. Vestnik Astrahanskogo gosudarstvennogo tehnicheskogo universiteta, 2, 91–94.
  7. Stergioudis, G. (2006). Formation of boride layers on steel substrates. Crystal Research and Technology, 41 (10), 1002–1004. doi: 10.1002/crat.200610711
  8. Saduman, S., Ugur, S., Cuma, B. (2005). An approach to kinetic study of borieded steels. Surfaceand Coating Technologies, 191 (2–3), 274–285. doi: 10.1016/j.surfcoat.2004.03.040
  9. Shashina, L. T., Maharov, D. M. (07.03.86). Certificate of authorship 1216249 SSSR, MPK7 С 23 С 8/70. Sostav obmazki dlja borirovanija stal'nyh izdelij (SSSR). 3793701/22–02; declared 24.09.84, № 9.
  10. Jancen, G. I., Astashhenko, V. I., Sergeeva, E. I. (15.02.92). Certificate of authorship 1712462 SSSR, MPK7 С 23 С 8/70. Poroshkoobraznyj sostav dlja borirovanija stal'nyh izdelij (SSSR). 4792103/02; declared 13.02.90, № 6.
  11. Pavljuchenko, O. O., Kostik, V. O., Kostik, K. O. (2008). Sklad dlja boruvannja stalevyh vyrobiv. Patent of Ukraine №33654, MPK8 C 23 C 8/00. № u200800226; declared 04.01.08; published 10.07.08, № 13.
  12. Kostyk, K. O. (2013). Zmicnennja pres–form lyttja pid tyskom po nanotehnologii'. Mashynobuduvannja, 12, 113–118.
  13. Hartman, K., Leckij, Je., Shefer, V. (1977). Planirovanie jeksperimenta v issledovanii tehnologicheskih processov. Moscow: Mir, 552.
  14. Seraya, O. V., Demin, D. A. (2012). Linear regression analysis of a small sample of fuzzy input data. Journal of Automation and Information Sciences, 44 (7), 34–48. doi: 10.1615/jautomatinfscien.v44.i7.40
  15. Kovalenko, B. P., Djomin, D. A., Bozhko, A. B. (2006).Optimizacija sostava holodnotverdejushhih smesej (HTS) s propilenkarbonatom. Eastern–European Journal of Enterprise Technologies, 6, 59–61.
  16. D'omin, D. O. (1995). Dejaki aspekty upravlinnja jakistju chavunu z plastynchastym grafitom. Kharkiv, 24.

Downloads

Published

2015-12-23

How to Cite

Костик, К. О. (2015). Development of the high-speed boriding technology of alloy steel. Eastern-European Journal of Enterprise Technologies, 6(11(78), 8–15. https://doi.org/10.15587/1729-4061.2015.55015

Issue

Vol. 6 No. 11(78) (2015): Materials Science

Section

Materials Science

License

Copyright (c) 2015 Катерина Олександрівна Костик

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.

A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.