Metals and Materials

, Volume 4, Issue 2, pp 165–171 | Cite as

Semi-solid squeeze casting of ignition-proof mg-ca-zr system alloys

  • Si-Young Chang
  • Jung-Chul Choi
Article

Abstract

The production method of the near-net shape molded Mg-Ca-Zr alloys by the devised semi-solid squeeze casting was established and the fabrication factors for sound products were also investigated. The Mg-Ca-Zr alloys having an ignition-proof property and very fine spherical structure provide high production safety and good fluidity for quality near-net shape products in semi-solid state processing. The orifice with a diameter of 30 mm and a plunger speed of 80 mm/s contribute successfully to infiltrate the semi-solid state prema-terial into the designed mold perfectly within the limited infiltration time. The tensile strengths and elongations of the ignition-proof Mg-Ca-Zr and Mg-Zn-Ca-Zr alloys are improved by applying the high pressure of 100 MPa, indicating that pressure more than 100 MPa is also an important fabrication factor.

Key words

semi-solid squeeze casting ignition-proof property Mg-Ca-Zr system alloys near-net shape products fabrication factors 
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Copyright information

© Springer 1998

Authors and Affiliations

  • Si-Young Chang
    • 1
  • Jung-Chul Choi
    • 2
  1. 1.Department of Metallurgical EngineeringFaculty of Engineering, Tokyo Institute of TechnologyO-okayama, Meguro-ku, TokyoJapan
  2. 2.RASOM, Division of Mechanical and Industrial EngineeringAjou UniversityPaldal-ku, SuwonKorea

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