ALUMINUM ALLOY MATERIAL, SINGLE LAYER OF WHICH ALLOWS THERMAL BONDING; MANUFACTURING METHOD THEREFOR; AND ALUMINUM BONDED BODY USING SAID ALUMINUM ALLOY MATERIAL

摘要

This invention provides the following: an aluminum alloy material, a single layer of which allows thermal bonding without the use of a bonding member such as a brazing or welding filler metal; a method for bonding said aluminum alloy material; and an aluminum bonded body using said aluminum alloy material. This invention provides an aluminum alloy material that is characterized by comprising an aluminum alloy that contains silicon in the amount of 1.0-5.0 mass% and iron in the amount of 0.01-2.0 mass%, with the remainder comprising aluminum and unavoidable impurities. Said aluminum alloy material is also characterized in that 10 to 1×104 aluminum-based intermetallics having equivalent circular diameters of 0.01-0.5 µm are present per cubic micrometer and no more than 200 silicon-based intermetallics having equivalent circular diameters of 5.0-10 µm are present per cubic millimeter. This invention also provides the following: a method for manufacturing said aluminum alloy material; and an aluminum bonded body using said aluminum alloy material.