264 Tribological Journal BULTRIB, Vol. ІІІ, 2013 Papers from the International Conference BULTRIB '12 October 18-20, 2012, Sofia Society of Bulgarian Tribologists EROSOIN WEAR OF NICKEL COATINGS WITH NANO-SIZE PARTICLES OF SILICON CARBIDE Mara KANDEVA, Dimitar KARASTOYANOV, Aleksandar VENCL Abstract: The paper proposes procedure and device for the study of erosion wear of materials and coatings under the action of air jet bearing hard abrasive particles. Experimental results about the coatings mass wear, erosion rate and erosion wear-resistance have been obtained. Chemical Ni coatings were studied containing nano-size particles of silicon carbide. Comparative study was carried out of erosion without and with nano-size particles in both cases with and without heat treatment. The nano-particles were of average size 35 nm by chemical solution between 5 and 7 vol. %. The investigation is related to the completion of the program of the Science Investigations Fund Contract № Ⱦ02-13/2009 directed by Assoc. Prof. Dr. Eng. D. Karastoyanov, and CEEPUS Project CIII-BG-0703-01-1213 “Modern Trends in Education and Research on Mechanical Systems - Bridging Reliability,Quality and Tribology”. Key Words: tribology, coatings, wear, erosion, nano-particles ȿɊɈɁɂɃɇɈ ɂɁɇɈɋȼȺɇȿ ɇȺ ɇɂɄȿɅɈȼɂ ɉɈɄɊɂɌɂə ɋ ɇȺɇɈɊȺɁɆȿɊɇɂ ɑȺɋɌɂɐɂ ɈɌ ɋɂɅɂɐɂȿȼ ɄȺɊȻɂȾ Ɇɚɪɚ ɄȺɇȾȿȼȺ, Ⱦɢɦɢɬɴɪ ɄȺɊȺɋɌɈəɇɈȼ, Ⱥɥɟɤɫɚɧɞɚɪ ȼȿɇɐɅ Ɋɟɡɸɦɟμ ȼ ɪɚɛɨɬɚɬɚ ɟ ɪɚɡɪɚɛɨɬɟɧɚ ɦɟɬɨɞɢɤɚ ɢ ɭɫɬɪɨɣɫɬɜɨ ɡɚ ɢɡɫɥɟɞɜɚɧɟ ɧɚ ɟɪɨɡɢɣɧɨɬɨ ɢɡɧɨɫɜɚɧɟ ɧɚ ɦɚɬɟɪɢɚɥɢ ɢ ɩɨɤɪɢɬɢɹ ɩɨɞ ɜɴɡɞɟɣɫɬɜɢɟɬɨ ɧɚ ɜɴɡɞɭɲɧɚ ɫɬɪɭɹ, ɧɨɫɟɳɚ ɬɜɴɪɞɢ ɚɛɪɚɡɢɜɧɢ ɱɚɫɬɢɰɢ. ɉɨɥɭɱɟɧɢ ɫɚ ɟɤɫɩɟɪɢɦɟɧɬɚɥɧɢ ɪɟɡɭɥɬɚɬɢ ɡɚ ɦɚɫɨɜɨɬɨ ɢɡɧɨɫɜɚɧɟ, ɫɤɨɪɨɫɬɬɚ ɧɚ ɟɪɨɡɢɹɬɚ ɢ ɟɪɨɡɢɣɧɚɬɚ ɢɡɧɨɫɨɭɫɬɨɣɱɢɜɨɫɬ ɧɚ ɩɨɤɪɢɬɢɹ ɨɬ ɯɢɦɢɱɟɫɤɢ ɧɢɤɟɥ, ɫɴɞɴɪɠɚɳɢ ɧɚɧɨɪɚɡɦɟɪɧɢ ɱɚɫɬɢɰɢ ɨɬ ɫɢɥɢɰɢɟɜ ɤɚɪɛɢɞ. ɉɪɨɜɟɞɟɧɨ ɟ ɫɪɚɜɧɢɬɟɥɧɨ ɢɡɫɥɟɞɜɚɧɟ ɧɚ ɟɪɨɡɢɹɬɚ ɧɚ ɩɨɤɪɢɬɢɹ ɛɟɡ ɢ ɫ ɧɚɧɨɪɚɡɦɟɪɧɢ ɱɚɫɬɢɰɢ, ɧɟɬɟɪɦɨɨɛɪɚɛɨɬɟɧɢ ɢ ɬɟɪɦɨɨɛɪɚɛɨɬɟɧɢ. ɇɚɧɨɱɚɫɬɢɰɢɬɟ ɢɦɚɬ ɫɪɟɞɟɧ ɪɚɡɦɟɪ ɨɬ 35 ЧЦ ɫ ɤɨɧɰɟɧɬɪɚɰɢɹ ɜ ɯɢɦɢɱɟɫɤɢɹ ɪɚɡɬɜɨɪ ɨɬ 5 ɞɨ 7 ɨɛɟɦɧɢ ɩɪɨɰɟɧɬɚ. ɂɡɫɥɟɞɜɚɧɟɬɨ ɟ ɫɜɴɪɡɚɧɨ ɫ ɢɡɩɴɥɧɟɧɢɟ ɧɚ ɡɚɞɚɱɢ ɩɨ ɞɨɝ. № Ⱦ02-13/200λ ɤɴɦ Ɏɨɧɞ „ɇɂ”ɫ ɪɴɤɨɜɨɞɢɬɟɥ ɩɪɨɮ. ɞ-ɪ ɢɧɠ. Ⱦ. Ʉɚɪɚɫɬɨɹɧɨɜ ɢ ɉɪɨɟɤɬ CEEPUS CIII-BG-0703-01-1213 “Modern Trends in Education and Research on Mechanical Systems - Bridging Reliability,Quality and Tribology”. Ʉɥɸɱɨɜɢ ɞɭɦɢ: ɬɪɢɛɨɥɨɝɢɹ, ɩɨɤɪɢɬɢɹ, ɢɡɧɨɫɜɚɧɟ, ɟɪɨɡɢɹ, ɧɚɧɨɱɚɫɬɢɰɢ 1.ȼɔȼȿȾȿɇɂȿ Ʉɚɥɚɧɞɪɢɪɚɧɟɬɨ ɟ ɬɟɯɧɨɥɨɝɢɱɟɧ ɩɪɨɰɟɫ, ɤɨɣɬɨ ɫɟ ɫɴɫɬɨɢ ɜ ɩɪɨɩɭɫɤɚɧɟ ɧɚ ɦɚɬɟɪɢɚɥ ɦɟɠɞɭ ɜɚɥɨɜɟ (ɤɚɥɚɧɞɪɢ) ɩɪɢ ɨɩɪɟɞɟɥɟɧɢ ɪɟɠɢɦɢ ɞɨ ɩɨɥɭɱɚɜɚɧɟ ɧɚ ɥɢɫɬɨɜ ɦɚɬɟɪɢɚɥ – ɯɚɪɬɢɹ, ɤɚɪɬɨɧ, ɤɨɠɚ, ɮɨɥɢɨ ɢ ɬ.ɧ. Ʉɚɥɚɧɞɪɨɜɢɬɟ ɜɚɥɨɜɟ ɜ ɪɚɡɥɢɱɧɢɬɟ ɩɪɨɢɡɜɨɞɫɬɜɚ ɪɚɛɨɬɹɬ ɩɪɢ ɪɚɡɥɢɱɧɢ ɬɟɦɩɟɪɚɬɭɪɧɨ-ɞɢɧɚɦɢɱɧɢ ɭɫɥɨɜɢɹ ɢ ɜ ɪɟɡɭɥɬɚɬ ɧɚ ɫɥɨɠɧɢɬɟ ɤɨɧɬɚɤɬɧɢ ɜɡɚɢɦɨɞɟɣɫɬɜɢɹ ɩɪɢ ɬɪɢɟɧɟ ɬɟ ɢɧɬɟɧɡɢɜɧɨ ɫɟ ɢɡɧɨɫɜɚɬ. ɍɜɟɥɢɱɚɜɚɧɟɬɨ ɧɚ ɪɟɫɭɪɫɚ ɧɚ ɤɚɥɚɧɞɪɨɜɢɬɟ ɜɚɥɨɜɟ ɜ ɫɜɟɬɨɜɧɚɬɚ ɩɪɚɤɬɢɤɚ ɟ ɱɪɟɡ ɧɚɧɚɫɹɧɟ ɧɚ ɬɴɧɤɢ ɢɡɧɨɫɨɭɫɬɨɣɱɢɜɢ ɩɨɤɪɢɬɢɹ ɨɬ ɬɜɴɪɞ ɯɪɨɦ. ȼ Ȼɴɥɝɚɪɢɹ ɤɨɥɟɤɬɢɜ ɨɬ ɂɧɫɬɢɬɭɬɚ ɩɨ ɢɧɮɨɪɦɚɰɢɨɧɧɢ ɬɟɯɧɨɥɨɝɢɢ ɩɪɢ ȻȺɇ ɢ Ɍɟɯɧɢɱɟɫɤɢ ɭɧɢɜɟɪɫɢɬɟɬ-ɋɨɮɢɹ ɪɚɡɪɚɛɨɬɜɚ ɩɪɨɟɤɬ ɡɚ ɡɚɦɹɧɚ ɧɚ ɧɟɟɤɨɥɨɝɢɱɧɢɹ ɢɧɞɭɫɬɪɢɚɥɟɧ ɯɪɨɦ ɫ ɩɨɤɪɢɬɢɹ ɨɬ ɧɢɤɟɥ, ɫɴɞɴɪɠɚɳɢ ɱɚɫɬɢɰɢ ɫ ɧɚɧɨ- ɢ ɦɢɤɪɨɪɚɡɦɟɪɢ ɨɬ ɪɚɡɥɢɱɧɨ ɟɫɬɟɫɬɜɨ. ɉɪɨɜɟɞɟɧɢ ɫɚ ɫɢɫɬɟɦɧɢ ɢɡɫɥɟɞɜɚɧɢɹ ɧɚ ɩɚɪɚɦɟɬɪɢɬɟ ɧɚ ɢɡɧɨɫɜɚɧɟɬɨ ɢ ɢɡɧɨɫɨɭɫɬɨɣɱɢɜɨɫɬɬɚ ɧɚ ɯɢɦɢɱɟɫɤɢ ɧɢɤɟɥɨɜɢ ɩɨɤɪɢɬɢɹ ɫ ɪɚɡɥɢɱɧɢ ɧɚɧɨɪɚɡɦɟɪɧɢ ɱɚɫɬɢɰɢ ɜ ɭɫɥɨɜɢɹ ɧɚ ɫɭɯɨ ɬɪɢɟɧɟ ɩɨ ɩɨɜɴɪɯɧɢɧɚ ɫɴɫ ɡɚɤɪɟɩɟɧɢ ɚɛɪɚɡɢɜɧɢ ɱɚɫɬɢɰɢ.