Title:
アルミニウム合金箔
Document Type and Number:
Japanese Patent JP7303274
Kind Code:
B2
Abstract:
To provide an aluminum alloy foil having a high elongation performance.SOLUTION: An aluminum alloy foil of the present invention has a composition that contains Fe: 1.0 mass% or larger and 1.8 mass% or smaller, Si: 0.01 mass% or more and 0.08 mass% or lower, Cu: 0.005 mass% or more and 0.05 mass% or smaller, restricts Mn :0.01 mass% or smaller, and the balance made of Al and inevitable impurities, in crystal orientation analysis a unit area due to a back scattered electron diffraction (EBSD), a ratio of lengths of a large tilt angle grain boundary (HAGBs) of an orientation difference 15° or more and a small tilt angle grain boundary (LAGBs) of an orientation difference of 2°or more and smaller than 15°is 2.0 or over, as an aggregate structure, Cu orientation density is 40 or larger, and R orientation density is 30 or smaller, a difference (Ra20-Ra0) of initial surface roughness (Ra0) and surface roughness Ra20 in a strain 20% time point in a tensile test is 0.25 μm or smaller.SELECTED DRAWING: Figure 1
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Inventors:
Takashi Suzuki
Application Number:
JP2021174502A
Publication Date:
July 04, 2023
Filing Date:
October 26, 2021
Export Citation:
Assignee:
MA Aluminum Co., Ltd.
International Classes:
C22C21/00
Domestic Patent References:
| JP2019014939A | ||||
| JP2019014940A | ||||
| JP2007308805A |
Foreign References:
| WO2020137394A1 | ||||
| WO2012036181A1 | ||||
| WO2013168606A1 | ||||
| WO2022224615A1 | ||||
| WO2019008783A1 | ||||
| WO2019008784A1 |
Attorney, Agent or Firm:
Yasushi Matsunuma
Mitsuo Teramoto
Fumihiro Hosokawa
Onami Kazunori
Mitsuo Teramoto
Fumihiro Hosokawa
Onami Kazunori