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Metals and Materials

, Volume 6, Issue 1, pp 25–32 | Cite as

Fabrication of Al alloys reinforced with AlN particles formed byin-situ reaction

  • Kon Bae Lee
  • Ho Seop Sim
  • Sung Woo Heo
  • Soo Youn Cho
  • Hoon Kwon
Article

Abstract

The tensile properties and microstructures of Al alloys reinforced with AlN particles formed byin-situ reaction under a nitrogen atmosphere were analyzed. It was found that AlN particle layers formed on the surface of the Al particles in the powder bed, which replaced the Mg3N2 coated layers through the reaction, Mg3N2+2A1 → 2AlN+3Mg. The tensile strength and 0.2% offset yield strength in the control alloys were significantly greater than those in commercial alloys. This increase was due to the fine AlN particles formed by the abovein-situ reactions of the Mg3N2 formation and its decomposition into AlN.

Key words

in-situ reaction pressureless infiltration AlN Mg3N2 

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Copyright information

© Springer 2000

Authors and Affiliations

  • Kon Bae Lee
    • 1
  • Ho Seop Sim
    • 1
  • Sung Woo Heo
    • 1
    • 3
  • Soo Youn Cho
    • 1
    • 3
  • Hoon Kwon
    • 1
    • 2
  1. 1.School of Metallurgical and Materials EngineeringKookmin UniversitySeoulKorea
  2. 2.Appointed at the Center for Advanced Aerospace Materials, School of Metallurgical and Materials EngineeringKookmin UniversitySeoulKorea
  3. 3.Department of Surface Treatment and EngineeringJaeneung CollegeInchonKorea

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