| 摘要 |
PROBLEM TO BE SOLVED: To provide a 6,000 series aluminum alloy sheet which has both BH after room temperature aging and formability after the room temperature aging.SOLUTION: In a specific 6,000 series aluminum alloy sheet, BH thereof after room temperature aging is further improved by making specific clusters being highly effective for the BH as measured by a three-dimensional atom probe electric field ion microscope be included by a certain number density or more, and also by controlling a rate of clusters, having a large number of Mg atoms in aggregates of atoms satisfying these conditions, so as to be increased. |
