Magnesium-alloy material

摘要

A magnesium-alloy material that:
(a) is produced through a rolling operation in which pressure is applied to a continuously cast material from at least three directions in the cross section of the material;
(b) has a crystal structure composed of any one of:
(b1) a hot-rolled structure;
(b2) a hot-rolled structure and a recrystallized structure; and
(b3) a recrystallized structure; and
(c) contains 0.002 to 5.0 wt. % Ca and the remainder being composed of any of:
(c1) Mg and impurities;
(c2) 0.1 to 12 wt. % Al, and Mg and impurities;
(c3) 0.1 to 12 wt. % Al; at least one constituent selected from the group consisting of 0.1 to 2.0 wt. % Mn, 0.1 to 5.0 wt. % Zn, and 0.1 to 5.0 wt. % Si; and Mg and impurities; and
(c4) 0.1 to 10 wt. % Zn, 0.1 to 2.0 wt. % Zr, and Mg and impurities.