MAGNESIUM ALLOY HAVING HIGH DUCTILITY AND HIGH TOUGHNESS, AND PREPARATION METHOD THEREOF

WIPO Patent Application WO/2013/115490

A1

The present invention relates to a magnesium alloy having high ductility and high toughness, and a preparation method thereof, and more specifically, to: a magnesium alloy having high ductility and high toughness, comprising 1.0-3.5 wt% of tin (Sn), 0.05-3.0 wt% of zinc (Zn), and the balance of magnesium and inevitable impurities; and a preparation method thereof. According to the present invention, the magnesium alloy is prepared by adding zinc, and optionally, one or more elements selected from aluminum, manganese and rare earth elements in a specific content ratio to a magnesium alloy capable of precipitation strengthening containing a small amount of tin so as to form a small amount of fine precipitates, thereby simultaneously minimizing a decrease in ductility of a material due to excessive precipitates and strengthening precipitation. Therefore, the magnesium alloy has prominent ductility and toughness compared with an extrusion material prepared from a conventional commercial magnesium alloy, and thus can be applied to a whole industry such as transportation equipment and the like.

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PARK SUNG HYUK (KR)
KIM YOUNG MIN (KR)
KIM HA-SIK (KR)
YOU BONG SUN (KR)
YIM CHANG DONG (KR)

PCT/KR2012/011831

August 08, 2013

December 31, 2012

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KOREA MACH & MATERIALS INST (KR)

C22C23/00; B22D21/04; C22C23/04; C22C23/06

JP2007138227A	2007-06-07
JP2011006778A	2011-01-13
KR100994812B1	2010-11-16
JP2004238676A	2004-08-26
KR20010062032A	2001-07-07

LEE, Won Hee (642-16 Yoksam-dongKangnam-ku, Seoul 135-080, KR)

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