Effects of similar-element-substitution on the glass-forming ability and mechanical behaviors of Ti-Cu-Zr-Pd bulk metallic glasses

Haoling Jia, Xie Xie, Lei Zhao, Jianfeng Wang, Yanfei Gao, Karin A. Dahmen, Weidong Li, Peter K. Liaw, Chaoli Ma

Research output: Contribution to journalArticle

Abstract

The Ti41Cu31Zr10Pd13 (at.%) metallic glasses are promising for bone-implantation applications due to their exceptional bio-compatibility. However, Pd, as a noble element, keeps the fabrication cost high and prevents the industrial sale production of these alloys. Searching for replacements with comparable glass-forming ability and ductility but lower cost turns out to be imperative. In this article, we used similar but less expensive elements to substitute Pd for such a goal. Specifically, 1-4 at.% Ni and Pt are incrementally used to replace Pd in the base alloy. Careful characterizations of the glass-forming ability and the compressive ductility suggest that the Ti41Cu36Zr10Pd10Ni3 metallic glass retains both the glass-forming ability and the ductility, but cuts down the alloy cost by ∼22.66%. The Ti41Cu36Zr10Pd12Pt1 metallic glass, despite no substantial trimming in the alloy cost, doubles the ductility and fairly maintains the glass-forming ability. The serrated flow is observed on the plastic flow of most metallic glasses investigated and is quantitatively studied in the framework of the self-organized criticality. Our work provides important insights on defining appropriate commercialization routes of Ti-based bulk metallic glasses.

Original languageEnglish (US)
Pages (from-to)261-269
Number of pages9
JournalJournal of Materials Research and Technology
Volume7
Issue number3
DOIs
StatePublished - Jul 2018

Keywords

  • Glass forming ability
  • Plasticity
  • Self-organized criticality
  • Serrated flow

ASJC Scopus subject areas

  • Ceramics and Composites
  • Biomaterials
  • Surfaces, Coatings and Films
  • Metals and Alloys

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