Effect of TiC nano-particle on microstructure evolution and tribological behaviour of Ti6Al4V composites fabricated via spark plasma sintering

This study explores the escalating significance of lightweight and biocompatible biomedical implants with a high strength-to-weight ratio, revolutionizing critical medical applications. Despite these merits, their widespread use is hampered by poor tribological performance. Investigating the impact...

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Bibliographic Details
Published inTribology international Vol. 197; p. 109775
Main Authors Lal, Basant, Dey, Abhijit
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.09.2024
Subjects
Fretting wear
Microstructure
Powder modification
Ti6Al4V matrix composites
Powder modification
Microstructure
Fretting wear
Ti6Al4V matrix composites
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Summary:This study explores the escalating significance of lightweight and biocompatible biomedical implants with a high strength-to-weight ratio, revolutionizing critical medical applications. Despite these merits, their widespread use is hampered by poor tribological performance. Investigating the impact of TiC nanoparticles, we synthesized Ti6Al4V (Ti64) powders with varying TiC content using spark plasma sintering. The resulting nanocomposites exhibited enhanced wear resistance attributed to heightened hardness and oxidation wear resistance. Notably, at 2.5 wt% TiC content, nanohardness reached 8.99 GPa, and specific wear rate significantly decreased to 4.2 × 10−9 mm3/N-m under constant loading (20 N, 1 Hz). This reveals substantial improvements compared to Ti64 monolithic alloys, emphasizing the potential for advancing implant materials. [Display omitted]
ISSN:0301-679X
1879-2464
DOI:10.1016/j.triboint.2024.109775