Journal of Materials and Mechatronics: A

Yazarlar: Hüseyin ÜNAL, Kemal ERMİŞ

Konular:Malzeme Bilimleri, Ortak Disiplinler

Anahtar Kelimeler:Wear,Thermoplastics,Polyamide,UHMWPE,Polymer

Özet: In this experimental study, pure ultra-high molecular weight polyethylene (UHMWPE) and casting polyamide (Casting PA) polymers were used to find the best wear resistant polymer material that can be used in rolling bearing applications. For tribological tests, a wear test device with a pin on the disc and AISI 316L stainless steel material as the counter disc material were used. The wear and friction tests were carried out under three different sliding speeds of 0.5, 1.0, and 2.0 m/s and under three different loads of 49N, 98N, and 147N. As a result of the data obtained from the study, the highest specific wear rate was obtained in ultra-high molecular weight polyethylene polymer with a sliding speed of 2 m/s and a value of 53x10-6 mm3/Nm under 49N load. The lowest specific wear rate was obtained in the pure casting polyamide polymer with a sliding speed of 1.0 m/s and a value of 4.6x10-6 mm3/Nm under 147N load. According to the test results obtained, the ultra-high molecular weight polyethylene polymer is 3.5 times higher in wear resistance than the casting polyamide polymer. In terms of tribological performance, ultra-high molecular weight polyethylene polymer has been determined as the most suitable material for rolling bearing applications.

---