One kind preparing semisolid Mg based on ultrasound2Si particles enhance the method for building up of Mg-Al-Mn composite material rheological models

One kind preparing semisolid Mg based on ultrasound2Si particles enhance the method for building up of Mg-Al-Mn composite material rheological models

  • CN 104,148,608 B
  • Filed: 08/06/2014
  • Issued: 08/03/2018
  • Est. Priority Date: 08/06/2014
  • Status: Active Grant
First Claim
Patent Images

1. one kind preparing semisolid Mg based on ultrasound2Si particles enhance the method for building up of Mg-Al-Mn composite material rheological models,It is characterized in including the following steps:

  • 1) it using AM60 alloys as matrix, by the way that Al-Si intermediate alloys are added into matrix alloy, using ultrasonic vibration method, preparesMg2Si particles enhance Mg-Al-Mn composite material semi-solid state slurries;

    The AM60 alloys form as follows based on mass fraction:

    Al5.95%, Zn 0.008%, Mn 0.387%, Si 0.03%, surplus Mg;

    2) Mg is obtained by experiment under ultrasound condition2Si particles enhance Mg-Al-Mn composite materials apparent viscosity and Mg2Si enhancesThe relationship of phase volume fraction, solid rate, and use η

    mmc

    m=(1+afMg2Si+bf2Mg2Si) formula expressed, wherein η

    mmcForThe apparent viscosity of composite material, η

    mFor the apparent viscosity of matrix, fMg2SiFor Mg2The volume fraction of Si, a, b are constant term;

    3) in the apparent viscosity Fundamentals of Measurement of basis material, using η

    m=Aexp (Bfs) formula expressed, wherein B is constant, fsFor solid rate, A is the power function about ultrasonic power;

    Parameter A uses A=cP-dFormula is expressed, wherein c, and d is normalSeveral, P is ultrasonic power;

    4) according to step

         2),

         3) obtain Mg2Si particles enhance the rheological model of Mg-Al-Mn composite materials:

    η

    mmc=cexp (Bfs)P-d(1+afMg2Si+bf2Mg2Si);

    To containing 1.25vol%Mg2Si composite materials and 5.0vol%Mg2The calculated value of Si composite materials is compared with experiment value, is foundResult of calculation is coincide well with experimental result, and rheological model computational accuracy is high.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×