Microstructure and mechanical properties of powder metallurgy Ti-Fe alloys

Qing Yu Meng, Xin Lu, Wei Xu, Ling Ling Zhi, Jun Chen, Xuan Hui Qu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Ti-(2-20)Fe alloys (with 2%, 5%, 10%, 15% or 20%Fe) were fabricated by powder metallurgy technique using elemental powders as raw materials. The effects of sintering temperature and Fe content on microstructure and mechanical properties of the alloys were studied. The results show that the Ti-xFe alloys with high-density (about 98%) and uniform microstructure can be produced at the sintering temperature range of 1100-1300℃. With the increasing of Fe content, the sintering temperature for densification significantly decreases, while the grain size of β phase decreases and the α lamellars become less and thinner. As Fe content is up to 20%, the alloy samples consist of single β grains. In comparison, the Ti-15Fe alloy sintered at 1150℃ exhibits the superior mechanical properties with hardness of 43.9 HRC, elastic modulus of 64.6 GPa, compressive strength of 2702 MPa, and compression rate of 32.7%.

Original languageEnglish
Pages (from-to)36-40
Number of pages5
JournalCailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Volume37
Issue number8
Publication statusPublished - 2016 Aug 25
Externally publishedYes

Keywords

  • Elastic modulus
  • Microstructure
  • Powder metallurgy
  • Ti-Fe alloy

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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