MAGNESIUM ALLOY MATERIAL - SUMITOMO ELECTRIC INDUSTRIES

Title:

MAGNESIUM ALLOY MATERIAL

Document Type and Number:

WIPO Patent Application WO/2012/091112

Kind Code:

A1

Abstract:

A magnesium alloy material with excellent corrosion resistance is provided. The magnesium alloy material comprises a magnesium alloy containing 7.3%-16 % by mass Al. When the Al content for the whole magnesium alloy material is x% by mass, the area with an Al content of 0.8x%-1.2x% by mass is 50% by area or more, the area with an Al content of 1.4x% by mass min. is 17.5% by area max., and there is substantially no area with an Al content of 4.2% by mass max. This magnesium alloy material can effectively prevent the occurrence of localized corrosion and the progression of said corrosion, as a result of the low variation in Al concentration and the lack of areas with extremely low Al content. Accordingly, the magnesium alloy material has excellent corrosion resistance compared to a die cast material with the same overall Al content. The magnesium alloy material can be used for plate material, coil material comprising rolled long plate material, and formed articles.

Inventors:

YAMAKAWA MASAHIRO (JP)
NUMANO MASATADA (JP)
SUGIHARA TAKAYASU (JP)
KUBO YUGO (JP)
INOKUCHI KOHJI (JP)
MIZUNO OSAMU (JP)

Application Number:

PCT/JP2011/080455

Publication Date:

July 05, 2012

Filing Date:

December 28, 2011

Export Citation:

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Assignee:

SUMITOMO ELECTRIC INDUSTRIES (JP)
YAMAKAWA MASAHIRO (JP)
NUMANO MASATADA (JP)
SUGIHARA TAKAYASU (JP)
KUBO YUGO (JP)
INOKUCHI KOHJI (JP)
MIZUNO OSAMU (JP)

International Classes:

C22C23/02; C22C23/00; C22C23/04; C22C23/06; C22F1/00; C22F1/06

Domestic Patent References:

WO2010047045A1

2010-04-29

Foreign References:

JPH1136035A	1999-02-09
JPH0578775A	1993-03-30
JPH05171332A	1993-07-09
JP2010242146A	2010-10-28
JP2006348349A	2006-12-28

Other References: