| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an aluminum alloy sheet excellent in adhesion durability, wherein interfacial peeling at a bonding interface of an adhesive is hardly generated even when being exposed to a high-temperature and highly-wet environment and a salt water-sprayed environment, and thereby adhesion strength is hardly lowered; and a joined body and an automobile member using the same. <P>SOLUTION: The aluminum alloy sheet 10 includes an aluminum alloy substrate 1 and a surface oxidized film 2 formed on the surface of the aluminum alloy substrate 1. In the surface oxidized film 2, the amount of zirconium is 0.01-10 atom%, and the amount of magnesium is 0.1 atom% or more and less than 10 atom%. When the surface oxidized film 2 is analyzed by FT-IR (Fourier transform infrared spectrophotometer) using parallel polarization at an incident angle of 75°and spectrum of a metal hydroxide is displayed in absorbance, the height of the spectral peak generated at a wavenumber portion of 1,060 cm<SP POS="POST">-1</SP>, assuming that the base line is 400-1,800 cm<SP POS="POST">-1</SP>, is 0.020 or less. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
