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Al-Mn-based aluminum alloy casting and its manufacturing method
Al-Mn-based aluminum alloy casting and its manufacturing method
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机译：基于Al-Mn的铝合金铸造及其制造方法
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摘要
PROBLEM TO BE SOLVED: To provide an Al—Mn-based aluminum alloy casting having a fine and homogeneous metal structure and a method for producing the same. More specifically, Al-Mn-based aluminum alloy castings with improved ductility while maintaining strength equal to or higher than that of conventional Al-Mn-based aluminum alloy castings, Young's modulus, and sufficiently low conductivity, and their convenience and efficiency. Providing a manufacturing method. A Mn: 2.0 to 12.0 an aluminum alloy containing by mass%, the metal structure becomes mainly Al-Mn eutectic structure and Al 6 Mn system crystallized substance, the Al 6 Mn KeiAkirade An Al—Mn-based aluminum alloy characterized in that the average ferret diameter of the object is 30 μm or less, and the area ratio of the crystallized material of less than 10 μm 2 is 40% or less with respect to the total area of the crystallized material. casting. [Selection diagram] None
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