| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive wrought magnesium thin-sheet superior in formability, particularly in press formability, and to provide a manufacturing method therefor. SOLUTION: The magnesium thin-sheet is rolled from an extruded Mg alloy plate which comprises 1-9 wt.% Al, 0.1-2 wt.% Mn, and the balance Mg with inevitable impurities; is 0.2-2 mm thick after being rolled; has 200-350 MPa of each T1 and T2, and 0.7 or less of at least one value of a value (Y1/T1) and a value (Y2/T2), when Y1 is defined to be a yield strength, T1 to be a tensile strength in a direction parallel to the rolling direction, Y2 to be the yield strength, and T2 to be the tensile strength in the direction vertical to the rolling direction; and has an average crystal grain size of 3-100μm. The manufacturing method is also disclosed. COPYRIGHT: (C)2004,JPO
|
