Vedat Veli ÇAY, Vahdettin KOÇ

INVESTIGATION OF WEAR BEHAVIOR OF Ti6Al4V /$B{_4}C$ COMPOSITES PRODUCED BY POWDER METALLURGY

In this study, Ti6Al4V / B4C Metal Matrix Composite (MMC) was produced using powder metallurgy (PM) method. Ball-milled powders, containing 0, 5, 10, and 15 wt% $B{_4}C$ were hot compacted at 950 °C for 20 minute under 450 MPa pressure in ambient air. The wear tests performed at 300 rpm sliding speed, 300 m sliding distance and three different loads of 5N, 10N, 15N, the effects of Ti6Al4V compound on$B{_4}C$ reinforced wear properties at different rates were investigated. It was determined that composite materials reinforced with $B{_4}C$ powder give better results than unreinforced Ti6Al4V and generally, as the amount of $B{_4}C$ powder increases, the friction coefficient values decrease and the wear resistance increases. In the wear test, it was observed that the friction coefficient of all materials decreased as the load increased. As a result of the changes in$B{_4}C$ reinforcement ratios, differences were observed in wear types and wear track depth. The results of the study showed that the wear resistance increased in parallel with the $B{_4}C$ addition and the best wear resistance was obtained with the wt. 15% $B{_4}C$ added sample.

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[1] Koç, V., Demirel, M. (2019). Produced of epoxy resin-mgo polymer matrix composite materials and investigation of pin on disc abrasive wear properties. Firat University Journal of Engineering, 31(1), 1-10.
[2] Cunzhu, N., Jiajun, G., Junliang, L., Di, Z. (2008). Investigation on microstructures and interface character of B4C particles reinforced 2024Al matrix composites fabricated by mechanical alloying. Journal of Alloys and Compounds, 454, 118–122.
[3] Karagöz, Ş., Yamanoğlu, R., Atapek, Ş. H. (2009). Solidification and Microstructural Characterization on Atomized Powders, Pamukkale University Journal of Engineering Science, 15(3), 309-316.
[4] Özel, S., Çelik, E., Turhan, H. (2009). The Investigation of microstructure and mechanical propertıes of Cu-Al/B4C composites produced by using hot pres. e-Journal of New World Sciences Academy Engineering Sciences, 1A0012, 4(1), 106-112.
[5] Gökmen, U. (2016). Fabrication and Characterization of Hot Extruded Hybrid Composites Al 2024 Matrix Reinforced with B4C/Al2O3, Journal of Polytechnic, 19(4), 445-453.
[6] Topcu, I., Güllüoǧlu, A. N., Bilici, M. K., Gülsoy, H. Ö. (2019). Investigation of wear behavior of Ti-6Al-4V/CNT composites reinforced with carbon nanotubes. Journal of the Faculty of Engineering and Architecture of Gazi University 34(3), 1441-1449.
[7] Alman D. E., Hawk, J. A. (1999).The abrasive wear of sintered titanium matrix–ceramic particle reinforced composites, Albany Research Center, USA, 21, 225–229.
[8] Chuvildeev, V., Panov, D., Boldin, M., Nokhrin, A., Blagoveshchensky, Y. V., Sakharov, V., Shotin, S., Kotkov, D. (2015). Structure and properties of advanced materials obtained by Spark Plasma Sintering. Acta Astronautica, 109,172-176.
[9] Waterhouse, R. B., Iwabuchi. A, (1985). High temperature fretting wear of four titanium alloys, Wear, 106, 303–313.
[10] Lee, B. S., Kang, S. (2001). Low-temperature processing of B4C-Al composites viainfiltration technique. Materials Chemistry and Physics, 67, 249-255.
[11] Zyang, F. (2002). Multi-Layer Graded Boron Carbide-Aluminum Composites, PhD Thesis, Purdue Universitesi.
[12] Leyen, C., Peters, M., Titanium and Alloys, Fundamentals and Applications, Wiley Vch, Köln, Gemany, 2003.
[13] ASM Metals Handbook, Powder Metallurgy and Applications, Vol. 7, ASM International, USA, 1998.
[14] Donachie, M.J., Titanium a Technical Guide, The Material Information Society, Second Edition, USA, 2000.
[15] Henriques, V. A. R., Campos, P. P., Cairo, C. A. A., Bressiani, C. J. (2005). Production of Titanium Alloys for Advanced Aerospace Systems by Powder Metallurgy. Material Research, 8(4), 443- 446.
[16] Yalçın, B., Varol, R. (2008). Production of Ti-6Al-4V and Ti-5-Al-2.5Fe alloys via powder metalurgy method and ınvestigation of its some mechanical properties. Journal of Polytechnic, 11(3), 235-241.
[17] Gok, M.S., Gencel, O., Koc, V., Kucuk, Y., Cay, V. V. (2011). Effect of abrasive particle sizes on abrasive wear of ceramic coatings sprayed by plasma process. Powder Metallurgy and Metal Ceramics, 50(5-6), 322–330.