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<p>This research explores the Ti24Nb<i>x</i>Sn system for potential biomedical applications, aiming to achieve properties similar to human bone. The alloys were sintered with the incorporation of 0–15 vol. % of Sn, at 1300&#xa0;°C in a high vacuum environment. Characterization included structural and microstructural analyses using XRD and OM, respectively. Vickers and Knoop microhardness tests were performed to determine their elastoplastic properties. Tribological behavior was evaluated using linear reciprocating dry wear tests. XRD patterns revealed β-Ti phases with partial transformation to α′′-Ti and acicular structures at low Sn concentrations (0–5 vol. %). For high concentrations (10 to 15 vol. % Sn), precipitates emerged, reducing the elastic modulus and relative density. Vickers microhardness increased slightly for samples containing 1–5 vol. % Sn. Additionally, an elastic modulus reduction to ~ 70 GPa was observed at the maximum Sn concentration. The alloys exhibit a CoF of ~ 0.60 with predominant adhesion and abrasion wear mechanisms.</p> Graphical abstract <p></p>

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Exploration of the elastoplastic and wear behavior of Ti24NbxSn alloys for potential biomedical applications

  • 期刊论文

  • 发表日期：

    2025年12月22日

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  • A. M. Moran-Rojas,
  • D. Bravo-Barcenas,
  • R. Suárez-Martínez,
  • O. Jimenez,
  • E. Rodríguez-de Anda,
  • M. Flores

摘要

This research explores the Ti24NbxSn system for potential biomedical applications, aiming to achieve properties similar to human bone. The alloys were sintered with the incorporation of 0–15 vol. % of Sn, at 1300 °C in a high vacuum environment. Characterization included structural and microstructural analyses using XRD and OM, respectively. Vickers and Knoop microhardness tests were performed to determine their elastoplastic properties. Tribological behavior was evaluated using linear reciprocating dry wear tests. XRD patterns revealed β-Ti phases with partial transformation to α′′-Ti and acicular structures at low Sn concentrations (0–5 vol. %). For high concentrations (10 to 15 vol. % Sn), precipitates emerged, reducing the elastic modulus and relative density. Vickers microhardness increased slightly for samples containing 1–5 vol. % Sn. Additionally, an elastic modulus reduction to ~ 70 GPa was observed at the maximum Sn concentration. The alloys exhibit a CoF of ~ 0.60 with predominant adhesion and abrasion wear mechanisms.

Graphical abstract