Effects of Mo content on corrosion and tribocorrosion behaviours of Ti-Mo orthopaedic alloys fabricated by powder metallurgy

Wei Xu, Miao Chen, Xin Lu, Da wei Zhang, Harsh preet Singh, Yu Jian-shu, Yu Pan, Xuan hui Qu, Chao zong Liu

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Effects of Mo content on corrosion and tribocorrosion of Ti-(8–20)Mo alloys fabricated by powder metallurgy (PM) were investigated. With a higher Mo content, the Ti-Mo alloys showed an increased corrosion resistance, and correspondingly their tribocorrosion resistance presented an initial increase but a subsequent decrease. Ti-16Mo alloy possessed the lowest wear rate of 1.0 × 10−3 mm3/m•N under tribocorrosion condition, which was about 30 % of that of as-cast pure Ti (3.3 × 10-3 mm3/m•N) and 91 % of that of Ti-6Al-4 V alloy (1.1 × 10-3 mm3/m•N), respectively. The highest tribocorrosion resistance and adequate corrosion resistance make the Ti-16Mo alloy a promising candidate for orthopedic applications.

Original languageEnglish
Article number108557
JournalCorrosion Science
Volume168
DOIs
Publication statusPublished - 2020 May 15
Externally publishedYes

Keywords

  • Corrosion resistance
  • Orthopaedic implant materials
  • Ti-Mo alloys
  • Tribocorrosion behavior

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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