The study of the friction and wear behaviors of Ti6Al4V alloys produced by additive manufacturing against UHMWPE under dry conditions Eklemeli imalat ile üretilen Ti6Al4V alaşımlarının kuru koşullarda UHMWPE'ye karşı kuru koşullarda sürtünme ve aşınma davranışlarının incelenmesi
Journal of the Faculty of Engineering and Architecture of Gazi University, cilt.41, sa.2, ss.925-940, 2026 (SCI-Expanded, Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 41 Sayı: 2
- Basım Tarihi: 2026
- Doi Numarası: 10.17341/gazimmfd.1770736
- Dergi Adı: Journal of the Faculty of Engineering and Architecture of Gazi University
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Art Source, Compendex, TR DİZİN (ULAKBİM), Academic Search Ultimate (EBSCO), Engineering Source (EBSCO)
- Sayfa Sayıları: ss.925-940
- Anahtar Kelimeler: Additive manufacturing, friction, island/grid scanning additive manufacturing, Ti alloys/UHMWPE, wear
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
This study provides a comparative investigation into the friction and wear properties of titanium (Ti) alloy specimens fabricated via Island Scanning (EIATTi) and Grid Scanning (EIITTi) additive manufacturing strategies, relative to those produced through Conventional Manufacturing Methods (GYITi). Tribological characterization studies were carried out in a Pin-Disk Wear Testing (PDATC) setup using Ti alloys as pin material and Ultra High Molecular Weight Polyethylene (UHMWPE) as counter element. According to the experimental results, although all average friction coefficients (µavg) were similar in magnitude, the lowest values were obtained in the EIATTi-UHMWPE pairs. Tribological tests revealed that after a sliding distance threshold of 750 m, the friction regime stabilized, and all samples exhibited similar µavg values until the end of the test. The lowest coefficient of friction was observed in the EIATTi-UHMWPE pair, with a value of 0.318. The EIITTi samples, on the other hand, exhibited the most stable friction behavior throughout the test duration. The calculated wear rates (ws) for GYITi, EIATTi, and EIITTi were determined as 56.0 × 10-6, 50.3 × 10-6 ve 50.9 × 10-6 mm3/Nm, respectively, and a moderate wear characteristic was observed in all samples. Furthermore, considering the friction values, UHMWPE functioned as a solid lubricant as expected. The results demonstrate that biomedical titanium alloys produced by the Additive Manufacturing (EI) method exhibit equivalent tribological performance compared to those produced by conventional methods, positioning them as a strong alternative candidate.