TREA

MAGNESIUM ALLOY AND ASSOCIATED PRODUCTION METHOD

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Information

  • Patent Application
  • 20070227629
  • Publication Number
    20070227629
  • Date Filed
    March 27, 2007
    17 years ago
  • Date Published
    October 04, 2007
    16 years ago
Information
Abstract
A magnesium alloy having Y, Zn, Ca, Mn, Ag, Ce, Zr, or Si.
Description
Claims
  • 1. A magnesium alloy, comprising: Y: 0.5-10 weight-percent,Zn: 0.5-6 weight-percent,Ca: 0.05-1 weight-percent,Mn: 0.05-0.5 weight-percent,Ag: 0-1 weight-percent,Ce: 0-1 weight-percent,Zr: 0-1 weight-percent or Si: 0-0.4 weight-percent,wherein the specifications relating to weight-percent of the alloy and magnesium and contaminants due to production make up the residual component of the alloy up to 100 weight-percent.
  • 2. The magnesium alloy of claim 1, wherein the magnesium alloy contains one or more intermetallic phases comprising: (a) Mg and one or more elements selected from the group consisting of Zn, Ca, Mn, Ag, Ce, Zr, Si, and Y; or(b) two or more elements selected from the group consisting of Zn, Ca, Mn, Ag, Ce, Zr, Si, and Y.
  • 3. The magnesium alloy of claim 2, containing one or more intermetallic phases selected from the group consisting of Ca2Mg6Zn3, AgMg4, Mn2Zr, Zn2Zr, MgZn2, and Mg24Y5.
  • 4. The magnesium alloy of claim 2, wherein a volume component of the intermetallic phases of the magnesium alloy is less than about 2 volume-percent.
  • 5. The magnesium alloy of claim 4, wherein the volume component of the intermetallic phases of the magnesium alloy is less than about 1 volume-percent.
  • 6. The magnesium alloy of claim 2, wherein a grain size of the intermetallic phases is less than about 1 μm.
  • 7. The magnesium alloy of claim 2, wherein a grain size of the alloy is less than about 20 μm.
  • 8. The magnesium alloy of claim 7, wherein the grain size of the alloy is less than about 10 μm.
  • 9. The magnesium alloy of claim 2, having a ductile yield of A5 standard samples at room temperature of greater than about 20%
  • 10. The magnesium alloy of claim 2, wherein Y is 4-8 weight-percent.
  • 11. The magnesium alloy of claim 2, wherein Zn is 0.8-2.5 weight-percent.
  • 12. The magnesium alloy of claim 2, wherein Ca is 0.05-0.2 weight-percent.
  • 13. The magnesium alloy of claim 2, wherein Mn is 0.05-0.25 weight-percent.
  • 14. The magnesium alloy of claim 2, wherein Ag is 0.05-0.6 weight-percent.
  • 15. The magnesium alloy of claim 2, wherein Ce is 0-0.5 weight-percent.
  • 16. The magnesium alloy of claim 2, wherein Zr is 0.3-0.7 weight-percent.
  • 17. The magnesium alloy of claim 2, wherein Si is 0.05-0.25 weight-percent.
  • 18. A method for producing a fine-grained magnesium alloy, comprising the steps of: (a) providing a batch of the composition comprising: Y: 0.5-10 weight-percent,Zn: 0.5-6 weight-percent,Ca: 0.05-1 weight-percent,Mn: 0.05-0.5 weight-percent,Ag: 0-1 weight-percent,Ce: 0-1 weight-percent,Zr: 0-1 weight-percent or Si: 0-0.4 weight-percent,wherein the specifications relating to weight-percent of the batch and magnesium and contaminants due to production make up the residual component of the batch remaining up to 100 weight-percent;(b) forming a magnesium alloy from the batch of the composition of step (a) by casting; and(c) reshaping the magnesium alloy by compression.
  • 19. The method of claim 18, wherein the magnesium alloy casting is performed by continuous casting.
  • 20. The method of claim 18, wherein the magnesium alloy is reshaped by extrusion.
  • 21. The method of claim 20, wherein the continuous casting is performed at a temperature in the range between 280° C. and 350° C.
  • 22. The method of claim 21, wherein the continuous casting is performed at a temperature in the range between 290° C. and 320° C.
Priority Claims (1)
Number Date Country Kind
10 2006 015 457.6 Mar 2006 DE national