Magnesium alloy for high temperature applications

Details Magnesium alloy for high temperature applications Magnesium alloy for high temperature applications

1999-08-04

2000-10-31

Wyszomierski, George

Metal treatment

Stock

Magnesium base

420405, 420409, 148538, C22C 2300, C22C 2302, C22C 2304

Patent

active

061396516

ABSTRACT:
A magnesium based alloy for high pressure die casting, comprising at least 83 wt % magnesium; 4.5 to 10 wt % Al; wt % Zn that is comprised in one of the two ranges 0.01 to 1 and 5 to 10; 0.15 to 1.0 wt % Mn; 0.05 to 1 wt % of rare earth elements; 0.01 to 0.2 wt % Sr; 0.0005 to 0.0015 wt % Be; and calcium in an amount higher than 0.3 (wt % Al -4.0).sup.0.5 wt % and lower than 1.2 wt %. The alloy may further comprise incidental impurities. The alloy may comprise at least 88 wt % magnesium, 4.5 to 10 wt % Al, 0.1 to 1 wt % of rare earth elements. The alloy may contain 5 to 10 wt % Zn and 0.1 to 1 wt % of rare earth elements, and wherein the zinc content is related to the aluminum content by the formula: wt % Zn=8.2-2.2 in (wt % Al -3.5).

REFERENCES:
patent: 2712564 (1955-07-01), Fry et al.
patent: 3119725 (1964-01-01), Foerster et al.
patent: 3496035 (1970-02-01), Foerster et al.
patent: 5143564 (1992-09-01), Gruzleski et al.
patent: 5147603 (1992-09-01), Nussbaum et al.
patent: 5223215 (1993-06-01), Charbonnier et al.
patent: 5855697 (1999-01-01), Luo et al.

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