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Determination of carburized layer thickness by GDOES method

1 Regional Materials Science and Technology Centre, VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU
2 Faculty of Metallurgy and Materials Engineering, VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU

Topical Section: Carbon Materials

The aim of this paper is to consider the possibility of using Glow Discharge Optical Emission Spectroscopy (GDOES) for determination of carburized layer thickness. Carburized layer increases the hardness of basic material (low carbon steels with carbon content of 0.2%), thereby it increases its wear and abrasion resistance and it decreases forming of oxidation layer too. The thickness of this layer is usually determined by hardness measuring according to the ČSN EN ISO 2639 standard. The results of this standardized method are compared with the results obtained by two methods of GDOES and with pictures of optical microscopy. It has been found that the method of “Bulk” GDOES analysis with gradual grinding is suitable for determining the thickness of carbon enriched layers, while carburized layers which would correspond to standardized hardness 550 HV 1 may be only guessed from the graph of dependence of carbon content on the depth, in which analysis was performed. The pictures from the optical microscope in cross section do not have sufficient predictive value.
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References

1. Thelning KE (1984) Steel and its Heat Treatment, 2 Eds.

2. Mohyla P, Kubon Z, Cep R, et al. (2014) Secondary hardening of low-alloyed creep-resistant steel welds. Metalurgija 53: 25–28.

3. Kula P, Dybowski K, Wolowiec E, et al. (2014) "Boost-diffusion" vacuum carburising-Process optimisation. Vacuum 99: 175–179.    

4. Widanka K (2010) Effect of interconnected porosity on carbon diffusion depth in vacuum carburising process of iron compacts. Powder Metall 53: 318–322.    

5. Krauss G (1990) Steels: Heat Treatment and Processing principles.

6. Váňová P, Sojka J, Volodarskaja A, et al. (2016) The evaluation of retained austenite in the carburized layers. METAL 2016-25th Anniversary International Conference on Metallurgy and Materials, Conference Proceedings, 879–884.

7. Singer F, Kufner M (2017) Model based laser-ultrasound determination of hardness gradients of gas-carburized steel. NDT&E Int 88: 24–32.

8. Balanovskii AE, Huy VV (2017) Plasma surface carburizing with graphite paste. Lett Mater 7: 175–179.    

9. Sugimoto KI, Hojo T, Mizuno Y (2017) Effects of vacuum-carburizing conditions on surface-hardened layer properties of transformation-induced plasticity-aided martensitic steel. Metals 7: 301.    

10. Jo B, Sharifimehr S, Shim Y, et al. (2017) Cyclic deformation and fatigue behavior of carburized automotive gear steel and predictions including multiaxial stress states. Int J Fatigue 100: 454–465.    

11. Jo B, Shim Y, Sharifimehr S, et al. (2016) Deformation and fatigue behaviors of carburized automotive gear steel and predictions. Frattura ed Integritá Strutturale 10: 28–37.

12. ČSN EN ISO 2639 (2002) Steels-Determination and verification of the depth of carburized and hardened cases.

13. ISO 18203:2016 (2016) Steel-Determination of the thickness of surface-hardened layers.

14. Vontorová J, Dobiáš V, Mohyla P (2017) Utilization of GDOES for the study of friction layers formed on the surface of brake discs during the friction process. Chem Pap 71: 1507–1514.    

15. Vontorová J, Mohyla P, Ševčíková X (2012) Influence of CMT and MIG soldering on zinc layer thickness. METAL 2012-21st International Conference on Metallurgy and Materials, Conference Proceedings.

16. Liu Y, Jian W, Wang JY, et al. (2015) Quantitative reconstruction of the GDOES sputter depth profile of a monomolecular layer structure of thiourea on copper. Appl Surf Sci 331: 140–149.    

17. Galindo RE, Forniés E, Albella JM (2006) Compositional depth profiling analysis of thin and ultrathin multilayer coatings by radio-frequency glow discharge optical emission spectroscopy. Surf Coat Tech 200: 6185–6189.    

© 2018 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

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