Title:
ALUMINUM ALLOY MATERIAL HAVING EXCELLENT INTERGRANULAR CORROSION RESISTANCE
Document Type and Number:
Japanese Patent JP2017075378
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an aluminum alloy having excellent intergranular corrosion resistance.SOLUTION: An aluminum alloy having excellent intergranular corrosion resistance has a composition comprising, in mass%, Mn: 0.8-2.0%, Cu: 0.1-1.5%, Si: 0.2-1.2%, Fe: 0.05-1.0% with the balance being Al and unavoidable impurities, with the ratio between an Mn content and an Si content in the range of 1.5-3.0, and the number density of Mn intermetallic compounds as orthorhombic crystals, existing on a grain boundary after brazing heat treatment, being 3/100 μm or less.SELECTED DRAWING: None
Inventors:
YOSHINO MICHIHIDE
IWAO SHOHEI
EDO MASAKAZU
IWAO SHOHEI
EDO MASAKAZU
Application Number:
JP2015203798A
Publication Date:
April 20, 2017
Filing Date:
October 15, 2015
Export Citation:
Assignee:
MITSUBISHI ALUMINIUM
International Classes:
C22C21/00
Domestic Patent References:
| JP2013108294A | 2013-06-06 |
Foreign References:
| WO2015141192A1 | 2015-09-24 |
Other References:
岩尾祥平 他, 軽金属, vol. 第59巻 第3号, JPN6019018240, 30 March 2009 (2009-03-30), JP, pages 108 - 113, ISSN: 0004037420
Attorney, Agent or Firm:
Yuki Yokoi