Fabrication of a high performance Ti alloy implant for an artificial hip joint

Taek Kyun Jung, Tadasu Abumiya, Noya Masahashi, Mok Soon Kim, Shuji Hanada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

A new fabrication process of a stem for an artificial hip joint has been investigated to improve mechanical properties and to reduce both the fabrication cost and consumption of expensive Ti alloys by swaging and die-forging into near-net-shape at room temperature, followed by local heat treatment and precise machining. In this study metastable β Ti-Nb-Sn alloys consisting of non-cytotoxic elements (biocompatible Ti alloys) were used for biomedical applications. It is found that swaging at both ends of a rod before die-forging saves material consumption by approximately 50% in comparison with turning, and enhances subsequent age-hardening. In addition the cold die-forging enables the fabrication costs to decrease. It is suggested that high strength of higher than 1100 MPa in the proximal part connected to a stem head and low Young's modulus of less than 60 GPa in the distal part implanted in a femur can be obtained simultaneously in advanced Ti alloy stems.

Original languageEnglish
Title of host publication10th International Symposium on Eco-Materials Processing and Design, ISEPD 2009
PublisherTrans Tech Publications Ltd
Pages591-594
Number of pages4
ISBN (Print)0878493271, 9780878493272
DOIs
Publication statusPublished - 2009
Event10th International Symposium on Eco-Materials Processing and Design, ISEPD 2009 - Xian, China
Duration: 2009 Jan 132009 Jan 15

Publication series

NameMaterials Science Forum
Volume620 622
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other10th International Symposium on Eco-Materials Processing and Design, ISEPD 2009
CountryChina
CityXian
Period09/1/1309/1/15

Keywords

  • Artificial hip joint
  • Biocompatible titanium alloy
  • Cold dieforging
  • Strength
  • Young's modulus

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Fabrication of a high performance Ti alloy implant for an artificial hip joint'. Together they form a unique fingerprint.

Cite this