Title:
損傷許容性アルミニウム合金製品およびその製造方法
Document Type and Number:
Japanese Patent JP4781536
Kind Code:
B2
Abstract:
The invention relates to a Product comprising an aluminium base alloy consisting of (in weight %): Cu3.8-4.9, Mg 1.2-1.8, Mn 0.1-0.9, Fe max. 0.12, Si max. 0.10, Ti max. 0.15, Zn max. 0.20, Cr max. 0.10, impurities each max. 0.05, total max. 0.15, balance aluminium, said product having a minimum L-0.2 % yield strength of 300 MPa or more, a minimum LT-0.2 % yield strength of 270 MPa, a minimum T-L fracture toughness KC(ao) of 100 MPa. 2ROOT m or more for a 700 mm wide CCT-panel, and having in both L/ST- and LT/ST-sections an average grain size of at least 6 according to ASTM E-112. Further the invention relates to a method for the manufacturing of such a product.
Inventors:
Hustler, Alfred Johann Peter
Heinz, Alfred Ludwig
Heinz, Alfred Ludwig
Application Number:
JP2000589753A
Publication Date:
September 28, 2011
Filing Date:
November 19, 1999
Export Citation:
Assignee:
ALERIS ALUMINUM KOBLENZ GMBH
International Classes:
B21B3/00; B32B15/01; C22C21/12; C22C21/16; C22F1/00; C22F1/057
Domestic Patent References:
| JPH05339687A | 1993-12-21 | |||
| JPS5547371A | 1980-04-03 | |||
| JPH1017976A | 1998-01-20 | |||
| JPH08283892A | 1996-10-29 |
Attorney, Agent or Firm:
Hirohito Katsunuma
Yukitaka Nakamura
Noritaka Yokota
Takeyasu Ito
Masaharu Takamura
Yukitaka Nakamura
Noritaka Yokota
Takeyasu Ito
Masaharu Takamura