A novel method to fabricate reinforced Ti composites by infiltration of Al (Mg) into porous titanium

Sumin Kim, Gyeungho Kim, Wooyoung Lee, Hyun Sook Lee, Wonyoung Jeung

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We present a novel method to fabricate Ti composites with in-situ formed reinforcement. Porous Ti was prepared by a metal injection molding (MIM) process, and the pores in the Ti were filled with molten Al or Al-Mg. By a simple method of infiltrating the second and/or third elements for short times (30–120 s), we obtained reinforced Ti composites having near-net shape. In particular, we observed a notable feature that the addition of Mg to the molten Al considerably improves the mechanical properties of the Ti composites. From the microstructural and elemental analysis, we found that Mg plays an important role in the enhancement of mechanical properties by preventing the growth of the brittle TiAl3 phase and forming an Al(Mg) solid solution inside the pores.

Original languageEnglish
Pages (from-to)404-412
Number of pages9
JournalJournal of Alloys and Compounds
Volume715
DOIs
Publication statusPublished - 2017 Jan 1

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Titanium
Infiltration
Molten materials
Composite materials
Metal molding
Mechanical properties
Injection molding
Solid solutions
Reinforcement
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Kim, Sumin ; Kim, Gyeungho ; Lee, Wooyoung ; Lee, Hyun Sook ; Jeung, Wonyoung. / A novel method to fabricate reinforced Ti composites by infiltration of Al (Mg) into porous titanium. In: Journal of Alloys and Compounds. 2017 ; Vol. 715. pp. 404-412.
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A novel method to fabricate reinforced Ti composites by infiltration of Al (Mg) into porous titanium. / Kim, Sumin; Kim, Gyeungho; Lee, Wooyoung; Lee, Hyun Sook; Jeung, Wonyoung.

In: Journal of Alloys and Compounds, Vol. 715, 01.01.2017, p. 404-412.

Research output: Contribution to journalArticle

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