| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy forging material excellent in high temperature properties, fatigue strength under high temperature atmosphere.SOLUTION: The aluminum alloy forging material manufactured by forging an aluminum alloy containing Cu:3.0 to 8.0 mass%, Mg:0.01 to 2.0 mass%, Ag:0.05 to 1.0 mass% and Mn:0.05 to 1.5 mass% and the balance Al with inevitable impurities and having average crystal particle diameter of 500 μm or less and crystal particle diameter ratio (major axis/minor axis) of 10 or less.SELECTED DRAWING: None |
