Agricultural Engineering, Volume 47

THE WEAR RESISTANCE OF ELECTROSPARK COATINGS ON STEEL C45 WHEN OPERATING WITH COUNTERBODIES OF DIFFERENT STEELS

Vasile Agafii, Juozas Padgurskas, Valentin Mihailov, Albinas Andriušis, Raimondas Kreivaitis, N Kazak
Institute of Applied Physics, Moldova Academy of Sciences, Chisinau; Aleksandras Stulginskis University; Institute of Applied Physics, Moldova Academy of Sciences, Chisinau; Aleksandras Stulginskis University; Institute of Applied Physics, Moldova Academy of Sciences, Chisinau

Abstract

In this work the tribological properties of coatings molybdenum, chromium, and stellite B3K obtained by electrospark alloying method on 45steel were studied. Tests data with rollers made of steel C45 HRC 50-52 and steel 30CrMnSiA HRC 38-42 showed, that molybdenum coatings were the most wear resistant.  Tests with rollers made of steel 30Cr13 HRC 43-45 showed that wear resistant of chromium coatings was highest. During the work with rollers made of steel C45 and steel 30CrMnSiA, the molybdenum coatings were the most antifriction ones - at the beginning friction coefficient was f = 0.12-0.11, and at the end f = 0.04-0.034. The  friction couple that was determined to be the most wear resistant was a block of steel C45 with a chromium coating  and roller made of steel 30Cr13 (wear was Ublock = 0.4 mg and Uroller = 10.8 mg).

Keyword(s): wear, electrospark coating, coefficient of friction, roughness, microhardness


References

A.E.Gitlevich, V.V.Mikhailov, N.Ya.Parkanskii, B.M.Revutsky. Elektroiskrovoe legirovanie metallicheskikh poverkhnostei. Kishinev, Shtiintsa, 1985. - 196 s. (in Russian)

A.D.Verkhoturov, I.A.Podcherneaeva and oth. Elektrodnie materiali dlea electroiscrovogo legirovaniea. 1988, 224 s. (in Russian)

A.D.Verkhoturov. Formirovanie poverkhnosnogo sloea metallov pri electroiskrovom legirovanii. – Vladivostoc, Dalinauka. 1995. – 323s. (in Russian)

N.Radek, J.Szalapko. Tribological properties of electro spark molybdenum coatings after laser treatment. Problems of Tribology, 1 (2006), Pages 76–81.

N.Radek. Experimental investigations of the Cu–Mo and Cu–Ti electro-spark coatings modified by laser beam. Advances in Manufacturing Science and Technology, 32 (2) (2008), Pages 53–68.

J.S.Wang, H.M.Meng, H.Y.Yu, Z.S.Fan, D.B.Sun. Characterization and wear behavior of WC-0.8 Co coating on cast steel rolls by electro-spark deposition. International Journal of Minerals, and Materials. Volume 16, Issue 6, December 2009, Pages 707-713. doi:10.1016/S1674-4799(10)60017-9

N.Radek, K.Bartkowiak. Performance properties of electro-spark deposited carbide-ceramic coatings modified by laser beam. Physics Procedia 5(2010), Pages 417-423. doi:10.1016/j.phpro.2010.08.163

N.Radek, K.Bartkowiak. Laser Treatment of Electro-Spark Coatings Deposited in the Carbon Steel Substrate with using Nanostructured WC-Cu Electrodes. Physics Procedia, Volume 39, 2012, Pages 295–301. doi:10.1016/j.phpro.2012.10.041

S.Durdu, S.L.Actug, K.Korktmaz. Characterization and mechanical properties of the duplex coatings produced on steel by electro-spark deposition and micro-arc oxidation. Surface and Coatings Technology Volume 236, 15 December 2013, Pages 303–308. doi:10.1016/j.surfcoat.2013.10.004

V.Agafii, J.Padgurskas, A.Andriušis, R.Kreivaitis, V.Mihailov, A.Ianachevici. Wear behavior electrospark coatings on steel. BALTRIB' 2013 VII International Scientific Conference, Proceedings, Aleksandras Stulginskis University, Kaunas, Lithuania. 14-15 November -2013, P.104-110.

V.I.Agafii, J.Padgurskas, V.V.Mihailov, A.Andriušis, R.Kreivaitis, A.Zunda. Effect of load on tribological properties of some coatings obtained by electrospark alloying on 45 steel surface. 7th International Conference on Materials Science and condensed matter Physics. Abstracts. Chisinau, Moldova, September 16-19, 2014, 318.

N.A.Bushe, V.V.Kopitko. Sovmestimosti truscikhsea poverkhnostei. Izd-vo Transport. 1981. 223 p. (in Russian)


Full Text: PDF

Refbacks

  • There are currently no refbacks.
2015 views

Agricultural Engineering ISSN 1392-1134 / eISSN 2345-0371

This journal is published under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License. Responsible editor: Dr A. Žunda.