Abstract
The influence of the carbamide concentration on the nitrocarburizing temperature and changes in the mass of titanium samples, which are related to the anodic dissolution and high-temperature oxidation of titanium in a vapor‒gas shell, is investigated. The modified layer structure is revealed to contain an external oxide layer (rutile) and an intermediate diffusion layer whose microhardness reaches 770 HV. It is demonstrated that an increase in the nitrocarburizing temperature stimulates growth in the oxide-layer thickness, and the diffusion-layer thickness depends on the carbamide concentration in the solution. It is found that, at 850°С, the surface roughness decreases from 1.0 to 0.3–0.5 μm and the wear rate reduces from 6.7 × 10–7 to (1.2–1.7) × 10–7 due to nitrocarburizing in an electrolyte incorporating 10–15 wt % ammonium chloride and 10–12.5 wt % carbamide.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
M. Aliofkhazraei and A. S. Rouhaghdam, Mater. Lett. 62, 2192 (2008).
M. Aliofkhazraei, A. S. Rouhaghdam, and T. Shahrabi, J. Alloys Compd. 460, 614 (2008).
Yu. P. Gladii, I. G. Dyakov, and M. R. Komissarova, in Proc. 7th Int. Conference on Materials Science and Condensed Matter Physics (Chisinau, 2014), p.292.
P. N. Belkin, A. M. Borisov, V. G. Vostrikov, et al., Fiz. Khim. Obrab. Mater., No. 1, 59 (2006).
P. N. Belkin, A. M. Borisov, and S. A. Kusmanov, J. Surf. Invest.: X-ray, Synchrotron Neutron Tech. 10 (3), 516 (2016).
X.-M. Li and Y. Han, Electrochem. Commun. 8, 267 (2006).
Y.-X. Dong, Y.-S. Chen, Q. Chen, et al., Surf. Coat. Technol. 201, 8789 (2007).
Z. Hu, F. Xie, Y. Liu, et al., Mater. Rev., No. 4 (2008). https://doi.org/en.cnki.com.cn/Article_en/CJFDTOTAL-CLDB-200804037.htm.
M. Aliofkhazraei, P. Taheri, A. S. Rouhaghdam, and C. Dehghanian, Mater. Sci. 43 (6), 791 (2007).
M. Aliofkhazraei, A. S. Rouhaghdam, A. Denshmaslak, et al., J. Coat. Technol. Res. 5 (4), 497 (2008).
X.-M. Li and Y. Han, Appl. Surf. Sci. 254, 6350 (2008).
M. Kh. Aliev, A. Sabour, and P. Taheri, Prot. Met. Phys. Chem. Surf. 44 (6), 618 (2008).
S. A. Kusmanov, Yu. V. Kusmanova, A. R. Naumov, et al., Surf. Coat. Technol. 272, 149 (2015).
P. N. Belkin, B. L. Krit, I. G. D’yakov, et al., Metalloved. Term. Obrab. Met., No. 1, 32 (2010).
P. N. Belkin, I. V. Tambovskii, S. S. Korableva, et al., in Proc. 14th Int. Scientific and Technical Conference “Fast-Quenched Materials and Coatings” (Moscow, 2016), p.69.
S. A. Kusmanov, P. N. Belkin, I. G. D’yakov, et al., Prot. Met. Phys. Chem. Surf. 50 (2), 223 (2014).
S. A. Kusmanov, I. G. Dyakov, P. N. Belkin, et al., J. Surf. Invest.: X-ray, Synchrotron Neutron Tech. 9 (1), 98 (2015).
T. L. Mukhacheva, I. G. D’yakov, and P. N. Belkin, Vopr. Materialoved., No. 2, 38 (2009).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © P.N. Belkin, I.V. Tambovskiy, S.S. Korableva, S.A. Silkin, S.A. Kusmanov, 2018, published in Poverkhnost’, 2018, No. 5.
Rights and permissions
About this article
Cite this article
Belkin, P.N., Tambovskiy, I.V., Korableva, S.S. et al. Anodic Plasma Electrolytic Nitrocarburizing of VT22 Titanium Alloy in Carbamide Electrolyte. J. Surf. Investig. 12, 507–512 (2018). https://doi.org/10.1134/S1027451018030060
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1027451018030060