Title:
ALUMINUM ALLOY FORGING MATERIAL AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2021/230080
Kind Code:
A1
Abstract:
Provided are a 6000-series aluminum alloy forging material having high strength and exceptional toughness (excellent ductility), and an efficient method for manufacturing the same. This aluminum alloy forging material is characterized by being formed from a 6000-series aluminum alloy, having a Cu content of 0.2-1.0 wt.%, the composition of the 6000-series aluminum alloy satisfying relational expressions (1) and (2), and having deposits at the base metal crystal grain boundary, specifically Al-(Fe,Mn,Cr)-Si-type crystalline deposits at the base metal crystal grain boundary. (1) Si (at%)≥2Mg (at%)
(2) 0.2≤surplus Si (wt%)+Mn (wt%)+Cr (wt%)≤1.7
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Inventors:
XING JIE (JP)
SHIOZAWA KAZUHIRO (JP)
OWADA YASUYUKI (JP)
SUGIHARA KAZUKI (JP)
SHIOZAWA KAZUHIRO (JP)
OWADA YASUYUKI (JP)
SUGIHARA KAZUKI (JP)
Application Number:
PCT/JP2021/016908
Publication Date:
November 18, 2021
Filing Date:
April 28, 2021
Export Citation:
Assignee:
NIPPON LIGHT METAL CO (JP)
International Classes:
C22C21/02; C22C21/06; C22F1/00; C22F1/05
Domestic Patent References:
| WO2016129127A1 | 2016-08-18 | |||
| WO2013114928A1 | 2013-08-08 | |||
| WO2007114078A1 | 2007-10-11 |
Foreign References:
| JP2004292937A | 2004-10-21 | |||
| JP2004043907A | 2004-02-12 | |||
| JP2000144296A | 2000-05-26 | |||
| JPH0559477A | 1993-03-09 | |||
| CN102337429A | 2012-02-01 | |||
| JPH083675A | 1996-01-09 | |||
| JP2017155251A | 2017-09-07 | |||
| JP2008163445A | 2008-07-17 |
Other References:
See also references of EP 4151764A4
Attorney, Agent or Firm:
IPR CONSULTANT PPC (JP)
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