| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy for vehicles and a wheel for motorcycles, capable of ensuring toughness suitable for vehicle parts even in the case of using aluminum materials containing impurities such as Fe.SOLUTION: An aluminum alloy has a composition containing, by wt.%, Fe:0.5% or less, Mn:0.2% or less, Si and Cu, and the balance Al with inevitable impurities, and a dendrite secondary arm spacing of 45 μm or less and a size of intermetallic compounds of 150 μm or less. |
