High strength and high toughness magnesium alloy and method of producing the same
OwnerYoshihito KAWAMURA, Michiaki YAMASAKIinventors
Life of this patent
Estimating the term…
Abstract
A high strength and high toughness magnesium alloy, characterized in that it is a plastically worked product produced by a method comprising preparing a magnesium alloy cast product containing a atomic % of Zn, b atomic % of Y, a and b satisfying the following formulae (1) to (3), and the balance amount of Mg, subjecting the magnesium alloy cast product to a plastic working to form a preliminary plastically worked product, and subjecting the preliminary plastically worked product to a heat treatment, and it has a hcp structure magnesium phase and a long period stacking structure phase at an ordinary temperature; (1) 0.5≦a<5.0 (2) 0.5<b<5.0 (3) ⅔a−⅚≦b.
Claims11
1-31. (canceled)
A method of producing a high strength and high toughness magnesium alloy comprising:
- a step for preparing a magnesium alloy casting product comprising “a” atomic % of Zn, “b” atomic % of Y and a residue of Mg, wherein “a” and “b” satisfy the following expressions (1) to (3), and
- a step for producing a plastically worked product by subjecting said magnesium alloy casting product to a plastic working:
- 0.5≦a≦5.0;
- (1)
- 0.5<b<5.0;
- and (2)
- ⅔a−⅚≦b. (3)
34-41. (canceled)
Dependencies are inferred from the claim text.