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1. (WO2017195808) ALUMINUM ALLOY MATERIAL, ALUMINUM ALLOY MATERIAL PROVIDED WITH ADHESIVE RESIN LAYER, JOINED BODY, AND PRODUCTION METHOD FOR ALUMINUM ALLOY MATERIAL

Pub. No.:    WO/2017/195808    International Application No.:    PCT/JP2017/017638
Publication Date: Fri Nov 17 00:59:59 CET 2017 International Filing Date: Thu May 11 01:59:59 CEST 2017
IPC: C23C 26/00
B32B 3/14
B32B 9/00
B32B 15/092
B32B 15/20
C09J 11/06
C09J 163/00
C23C 8/10
C23C 22/66
C23C 22/68
C23C 28/00
C23F 1/00
C23G 1/12
C23G 1/34
C22C 21/02
C22C 21/06
C22F 1/00
C22F 1/05
Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
株式会社神戸製鋼所
Inventors: TAKAHASHI Yusuke
高橋 佑輔
TAKADA Satoru
高田 悟
Title: ALUMINUM ALLOY MATERIAL, ALUMINUM ALLOY MATERIAL PROVIDED WITH ADHESIVE RESIN LAYER, JOINED BODY, AND PRODUCTION METHOD FOR ALUMINUM ALLOY MATERIAL
Abstract:
The present invention relates to an aluminum alloy material that comprises: an aluminum alloy base material; and a coating film that is formed on at least one portion of the surface of the aluminum alloy base material and that comprises an oxide of aluminum that includes silicon. Over a pre-and-post-coating difference spectrum obtained by Fourier-transform infrared spectroscopy using parallel polarized light that is incident at an angle of 75°, the coating film has an absorption peak top in the wavenumber domain of 1550-1650 cm-1, and the absorbance of the coating film at said peak top is 0.001 or higher. The Si content of the coating film is at least 20 at% but less than 80 at%, the Mg content of the coating film is at least 0.1 at% but less than 30 at%, and the Cu content of the coating film is restricted to less than 0.6 at%.