Title:
特に航空宇宙用途向けの、耐損傷性が高いアルミニウム合金製品
Document Type and Number:
Japanese Patent JP4903039
Kind Code:
B2
Abstract:
A worked aluminum alloy product, with a high mechanical strength, high tenacity to rupture, high fatigue resistance and a low development of cracks under fatigue, has the following composition (by wt%): (a) 4.4 to 5.5 Cu, 0.3 to 1.0 Mg (such that 1.1[Mg] + 5.38 = [Cu] = 5.5), less than 0.20 Fe, less than 0.20 Si, less than 0.40 Zn and 0.15 to 0.8 Mn; (b) the Mn being in the form of an element forming some dispersoids in combination with one or more of dispersoid forming elements chosen from less than 0.5 Zr, less than 0.7 Sc, less than 0.4 Cr, less than 0.3 Hf, less than 0.1 Ag, less than 0.4 Ti, less than 0.4 V: (c) the remainder being aluminum and other impurities or occasional elements. An independent claim is also included for the fabrication of this worked aluminum alloy.
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Inventors:
Hinrich, Johannes, Wilhelm, Hargartel
Linde, Benedictus
Christian, Joachim, Kaider
Alfred, Ludwig, Heinz
Linde, Benedictus
Christian, Joachim, Kaider
Alfred, Ludwig, Heinz
Application Number:
JP2006508276A
Publication Date:
March 21, 2012
Filing Date:
June 03, 2004
Export Citation:
Assignee:
ALERIS ALUMINUM KOBLENZ GMBH
International Classes:
C22C21/12; B21C23/00; B21J5/00; B64C1/12; B64C3/26; C22C21/14; C22C21/16; C22C21/18; C22F1/057; C22F1/00
Domestic Patent References:
| JP2000505150A | ||||
| JP2001181771A | ||||
| JP2004137558A |
Foreign References:
| US5593516 | ||||
| US5512112 | ||||
| US5376192 | ||||
| US20010006082 |
Attorney, Agent or Firm:
Hirohito Katsunuma
Yukitaka Nakamura
Noritaka Yokota
Takeyasu Ito
Masaharu Takamura
Yukitaka Nakamura
Noritaka Yokota
Takeyasu Ito
Masaharu Takamura