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Title:
ALUMINUM ALLOY MATERIAL
Document Type and Number:
Japanese Patent JP2013221161
Kind Code:
A
Abstract:

To provide an aluminum alloy material having both of strength and elongation at a high level.

An aluminum alloy material contains, in chemical composition, 0.3-1.2 mass% of Si, 0.4-1.2 mass% of Mg, 0.2-0.7 mass% of Fe, 0.005-0.1 mass% of Ti, 0.2-0.45 mass% of Cu, 0.05-0.25 mass% of Cr, and 0.05-0.3 mass% of Mn, with the balance comprising Al and inevitable impurities. When intermetallic compounds each having an equivalent-circle diameter of 0.12-0.25 μm, among intermetallic compounds, are defined as medium size intermetallic compounds, the medium size intermetallic compounds existing in a visual field of 170 μm2 by the SEM observation of an optional cross section is ≤100 pieces.


Inventors:
KATO YOSHITOMO
AZUMA KENJI
Application Number:
JP2012091543A
Publication Date:
October 28, 2013
Filing Date:
April 13, 2012
Export Citation:
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Assignee:
SHOWA DENKO KK
International Classes:
C22C21/02; C22C21/06
Domestic Patent References:
JP2009079299A2009-04-16
JP2011068994A2011-04-07
JP2002294383A2002-10-09
JPH07145440A1995-06-06
JP2009079299A2009-04-16
JP2011068994A2011-04-07
JP2002294383A2002-10-09
JPH07145440A1995-06-06
Attorney, Agent or Firm:
Yoshihito Shimizu
Hisayoshi Shimizu