Manufacturing Technology 2020, 20(2):152-161 | DOI: 10.21062/mft.2020.028

Quality Evaluation of Carburized Surfaces of Steels Used in Military Technology

David Dobrocky, Zdenek Joska, Zbynek Studeny, Zdenek Pokorny, Emil Svoboda
Faculty of Military Technology, University of Defence in Brno. Kounicova 65, 602 00 Brno. Czech Republic

Carburizing is used in applications where there is a high demand for surface hardness and abrasion resistance along with core toughness requirements. Carburizing is mainly used for parts which are subjected to abrasion, such as shafts, pins, gears, cams, etc. At the same time as the hardness of the surface layer increases, the fatigue limit of the steel increases after carburizing. The article deals with the evaluation of surface quality of carburized steels 16MnCr5 and 14NiCr14 in terms of surface texture change and dimension change after application of car-burizing. The analysed steels are used mainly in the production of gear wheels for gearboxes of wheeled, tracked and artillery. Furthermore, the coefficients of friction and wear were evaluated on these steels. The functional surfaces of heat-treated steels were analysed after grinding and after gas carburizing. The evaluation of the sur-face quality results in a deterioration of the surface roughness and an increase in dimensions after carburizing. The coefficient of friction after carburizing reaches a higher value compared to ground surfaces, while the coeffi-cient of wear decreases.

Keywords: Surface, Hardness, COF, Texture, Roughness.
Grants and funding:

Specific research project 2018 „SV18-216“ at the Department of Mechanical Engineering, the University of Defence in Brno and the Project for the Development of the Organization „DZRO K201“.

Prepublished online: August 17, 2020; Published: August 18, 2020  Show citation

ACS AIP APA ASA Harvard Chicago IEEE ISO690 MLA NLM Turabian Vancouver
Dobrocky D, Joska Z, Studeny Z, Pokorny Z, Svoboda E. Quality Evaluation of Carburized Surfaces of Steels Used in Military Technology. Manufacturing Technology. 2020;20(2):152-161. doi: 10.21062/mft.2020.028.
Download citation

References

  1. YOU, Y., YAN, J., YAN. M. (2019). Atomistic diffusion mechanism of rare earth carburizing/nitriding on iron-based alloy. In: Applied Surface Science, Vol. 484, 2019, p. 710-715. ISSN: 0169-4332. Go to original source...
  2. FALTEJSEK, P., JOSKA, Z., POKORNÝ, Z., DOBROCKÝ, D., STUDENÝ, Z. (2019). Effect of Nitriding on the Microstructure and Mechanical Properties of Stainless Steels. In: Manufacturing Technology, Vol. 19, 2019, No. 5, p. 745-748. ISSN: 1213-2489. Go to original source...
  3. PILCH, O., FALTEJSEK, P., HRUBÝ, V., KRBA«A, M. (2017). The Corrosion Resistance of Turbocharger Stator after Plasma Nitriding Process. In: Manufacturing Technology, Vol. 17, 2017, No. 3, p. 360-364. ISSN: 1213-2489. Go to original source...
  4. LI, G., LIANG, Y., YIN, C., SUN, H., ZHU, Z. (2019). Study of M50NiL steel under carburizing and nitriding duplex treatment. In: Surface and Coatings Technology, Vol. 375, 2019, p. 132-142. ISSN: 0257-8972. Go to original source...
  5. KŘÍ®, A., BRICÍN, D., PRŮCHA, V. (2018). The Potential for Heat Treating Cemented Carbides. In: Manufacturing Technology, Vol. 18 (4), p. 600-604. ISSN: 1213-2489. DOI: 10.21062/ujep/145.2018/a/1213-2489/MT/18/4/600 Go to original source...
  6. PENG, Y., LIU, Z., CHEN, CH., GONG, J., SOMMERS, M.A.J. (2020). Effect of low-temperature surface hardening by carburization on the fatigue behaviour of AISI 316L austenitic stainless steel. In: Materials Science and Engineering: A, Vol. 769, in progress (2 January 2020). ISSN: 0921-5093. Go to original source...
  7. BRUNATTO, S.F., SCHEUER, C.J., BOROMEI, I., CESCHINI, L., CARDOSO, R.P. (2018). Martensite coarsening in low-temperature plasma carburizing. In: Surface and Coatings Technology, Vol. 350, 2018, p. 161-171. ISSN: 0257-8972. Go to original source...
  8. SEDLÁK, J., POLZER, A., CHLADIL, J., SLANÝ, M., JARO©, A. (2017). Reverse Engineering Method Used for Inspection of Stirrer´s Gearbox Cabinet Prototype. In: MM Science Journal, Vol. 4, 2017, p. 1877-1882. ISSN: 1803-1269. Go to original source...
  9. HERRING, D.H. (2012). Vacuum heat treatment: Principles, Practices, Application. United States of America: BNP Media II, LLC, Troy, MI 48084, 2012. ISBN: 978-0-9767565-0-7.
  10. NUNES, R.F. (1991). ASM Handbook: Volume 4: Heat Treating. ASM International, USA, 1991. ISBN: 0-87170-379-3.
  11. DONG, M. et al. (2017). Vacuum carburization of 12Cr2Ni4A low carbon alloy steel with lanthanum and cerium ion implantation. In: Journal of Rare Earths, Vol. 35,2017, No. 11, p. 1164-1170. ISSN: 1002-0721. Go to original source...
  12. CHEN, K., JIANG, Z., LIU, F., YU, L., LI, Y., GONG, W., CHEN, CH. (2019). Effect of quenching and tempering temperature on microstructure and tensile properties of microalloyed ultra-high strength suspension spring steel. In: Materials Science and Engineering: A, Vol. 766, 2019, 138272, ISSN: 0921-5093. Go to original source...
  13. ISO 18203. Steel - Determination of the thickness of surface-hardened layers.
  14. ASTM G 171-03. Standard Test Method for Scratch Hardness of Materials Using a Diamond Stylus.

This is an open access article distributed under the terms of the Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.