Biomedical Mg-Sn-Zn-Mn magnesium alloy and preparation method thereof

Biomedical Mg-Sn-Zn-Mn magnesium alloy and preparation method thereof

  • CN 102,433,477 B
  • Filed: 12/22/2011
  • Issued: 04/15/2015
  • Est. Priority Date: 12/22/2011
  • Status: Active Grant
First Claim
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1. a preparation method for biomedical Mg-Sn-Zn-Mn magnesium alloy, is characterized in that comprising the following steps:

  • (1) according to mass percent be;

    Sn 2-4%, Zn 0.5-1.0%, Mn 0.15-1.0%, Impurity Fe <

    0.002% or Fe/Mn <

    0.02, Cu <

    0.002% and Ni <

    0.002%, surplus is the ratio of Mg, adopts pure magnesium ingot, pure tin ingot, pure zinc ingot and Mg-Mn master alloy under flux protection, carry out melting, Mg-Sn-Zn-Mn series magnesium alloy ingot casting is made in casting;

    (2) by Mg-Sn-Zn-Mn series magnesium alloy ingot casting at 300 DEG C-400 DEG C, be incubated after 3-5 hour and carry out extruding or rolling predeformation, deflection is less than 10%;

    (3) the Mg-Sn-Zn-Mn series magnesium alloy after predeformation is carried out solution heat treatment, solid solution temperature is 400 DEG C-450 DEG C, and the solution treatment time is 12-28 hour, and the cold or air cooling of shrend, stove is to room temperature.

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