Comparison of mechanical properties of a biomedical β Titanium alloy added with pure rare earth and rare earth oxides

Xiu Song, Lei Wang, Mitsuo Niinomi, Masaaki Nakai, Yang Liu, Miaoyong Zhu

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

1 Citation (Scopus)

Abstract

The microstructures and mechanical properties of the TNTZ added with Y or Y2O3 have been investigated. The results indicate that TNTZ added with Y or 2O3 are found to be composed of β phase and the small amount of 2O3. The grain size of TNTZ added with Y or 2O3 is smaller than that of TNTZ. The Young's modulus of TNTZ added with Y or 2O3 are maintained at a low level, and Young's modulus of TNTZ added with Y is smaller than that of TNTZ added with 2O3. The mechanical properties are both improved by adding Y or 2O3, while the tensile strength of TNTZ added with 2O3 is slightly higher than that of TNTZ added with Y. The high cycle fatigue limit of the alloys added with Y or 2O3 are similar, while the low cycle fatigue strength of TNTZ added with Y is higher than that of TNTZ with 2O3. The improving of mechanical properties ascribes to the microstructure refinement and the pining effect of 2O3 particles. On the other hand, Y elements form 2O3 with the oxygen elements in the matrix, thus lead to the weakening of the oxygen solution effect.

Original languageEnglish
Title of host publicationAdvanced Materials Science and Technology
PublisherTrans Tech Publications Ltd
Pages147-151
Number of pages5
ISBN (Print)9783037856604
DOIs
Publication statusPublished - 2013
Event8th International Forum on Advanced Materials Science and Technology, IFAMST 2012 - Fukuoka City, Japan
Duration: 2012 Aug 12012 Aug 4

Publication series

NameMaterials Science Forum
Volume750
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other8th International Forum on Advanced Materials Science and Technology, IFAMST 2012
CountryJapan
CityFukuoka City
Period12/8/112/8/4

Keywords

  • Biomaterial
  • Fatigue strength
  • Pure rare earth
  • Rare earth oxide
  • Β-type titanium alloy

ASJC Scopus subject areas

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

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