Storozhenko М.S. Wear mechanisms of NiCrSiB-TiB2 plasma-sprayed coatings under dry sliding conditions.
Abstract
In this work the wear behavior of NiCrSiB-TiB2 coatings against steel counter-body under dry sliding conditions is studied. The NiCrSiB-based coatings with 10wt.%, 20wt.%, 40wt.% of titanium diboride particles content were sprayed by plasma technique.The heterogeneous structure of plasma sprayed NiCrSiB-20wt.%TiB2 coating consists of the nickel-based matrix, titanium diboride and chromium boride grains. Wear rates of NiCrSiB-TiB2 coatings were examined using pin-on-disk tester at sliding speed of 4, 8, 12 m/s and at constant load applied to the pin of 5MPa. The worn surfaces were observed using scanning electron microscopy. It has been determined, that the addition of 10 wt.% titanium boride into the NiCrSiB alloy results in the increase of plasma sprayed coating wear resistance as compared with NiCrSiB coating. However, adhesive wear mechanism is proved to be a dominant for NiCrSiB-10wt%TiB2 сcoating. The subsequent increase of TiB2 content in nickel-based self-fluxing alloy up to 20-40 wt. % results in increase of plasma sprayed coatings wear-resistance. Hard TiB2 and CrB grains prevent the deformation of nickel matrix and promote formation of oxide films (TiO2, B2O3, NiO, Cr2O3) that further serve as protective layer.References
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2. Kulu P., Halling J. Recycled hard metal-base wear-resistance composite coatings. Journal of Thermal Spray Technology. 1998. V.7. P. 173-178.
3. Rodríguez J., Martín A., Fernández R., Fernández J. An experimental study of wear performance of NiCrBSi thermal spray coatings. Wear. 2003. V. 255. P. 950-955.
4. Miguel S.J., Guilemany J.M., Vizcain J.M. Tribological study of NiCrBSi coating obtained by different process. Tribol. Int. 2003. V.36. P. 181-187.
5. Houdkova Sˇ. Zaha´lka F., Kasˇparova M. L,. Berger M. Comparative study of thermally sprayed coatings under different types of wear conditions for hard chromium replacement. Tribol. Lett. 2011. V.43. P. 139-154.
6. Sari N.J., Yilmaz M. Improvement of wear resistance of wire drawing rolls with Cr-Ni-B-Si+WC thermal spraying powders. Surface and Coatings Technology. 2008. V.202. P. 3136-3141.
7. Klinskaja-Rudenskaja N.A., Kuz'min B.P. O vlijanii tugoplavkih dobavok na strukturu i svojstva pokrytij iz samofljusujushhihsja splavov. Fizika i himija obrabotki materialov. 1996. N 1. S. 55-61.
8. Samsonov G.V., Markovskij L.Ja., Zhigach A.F., Valjashko M.G. Bor, ego soedinenija i splavy. K. Izd-vo AN USSR, 1960. 590s.
9. Vojtovich R.F., Pugach Je.A. Vysokotemperaturnoe okislenie boridov metallov IV gruppy. Poroshkovaja metallurgija. №2. 1975. S. 57-62.
10. Pashechko M., Kondir A., Bogun L. Okislennja boru ta vuglecju u kompozitnih materіalah par tertja. Specvipusk zhurnalu "FHMM". 2002. T.1. №3. S.293-297.
11. Pashechko M.І., Kondir A., Bogun L. Mehanіzmi utvorennja oksidіv na kontaktnih poverhnjah pіd chas tertja materіalіv, shho mіstjat' zalіzo ta bor. Problemi tribologії. №2. 2003. S. 139 -143.
12. Umanskij A. P., Terent'ev A.E., Storozhenko M.S., Bondarenko A.A. Vlijanie dobavok TiB2 na strukturu i svojstva plazmennyh pokrytij na osnove NiCrSiB. Aviacionno-kosmicheskaja tehnika i tehnologija. 2012. №10 (97). S.50-55.
13. Umanskyi O., Hussainova I., Storozhenko M., Terentjev O., Antonov M. Sliding wear behaviour of NiCrSiB-TiB2 plasma sprayed coatings. Processing of the 9th Baltic-Buylgarian Conference on Biomechanic and Mechanics. Riga, Latvia. June 17-18, 2013. P. 250-258.
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Published
2014-07-14
How to Cite
Стороженко, М. (2014). Storozhenko М.S. Wear mechanisms of NiCrSiB-TiB2 plasma-sprayed coatings under dry sliding conditions. Problems of Tribology, 70(4), 121–128. Retrieved from https://tribology.khnu.km.ua/index.php/ProbTrib/article/view/193
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