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1. WO2013115490 - MAGNESIUM ALLOY HAVING HIGH DUCTILITY AND HIGH TOUGHNESS, AND PREPARATION METHOD THEREOF

Publication Number WO/2013/115490
Publication Date 08.08.2013
International Application No. PCT/KR2012/011831
International Filing Date 31.12.2012
IPC
C22C 23/00 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
23Alloys based on magnesium
C22C 23/04 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
23Alloys based on magnesium
04with zinc or cadmium as the next major constituent
C22C 23/06 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
23Alloys based on magnesium
06with a rare earth metal as the next major constituent
B22D 21/04 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
21Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
02Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
04Casting aluminium or magnesium
CPC
B21C 23/002
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
23Extruding metal; Impact extrusion
002Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
B21C 23/08
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
23Extruding metal; Impact extrusion
02Making uncoated products
04by direct extrusion
08Making wire, bars, tubes
B22D 21/007
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
21Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
002Castings of light metals
007with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
B22D 21/04
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
21Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
02Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
04Casting aluminium or magnesium
C22C 1/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
1Making alloys
02by melting
C22C 23/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
23Alloys based on magnesium
Applicants
  • 한국기계연구원 KOREA INSTITUTE OF MACHINERY AND MATERIALS [KR]/[KR]
Inventors
  • 박성혁 PARK, Sung Hyuk
  • 김영민 KIM, Young Min
  • 김하식 KIM, Ha-Sik
  • 유봉선 YOU, Bong Sun
  • 임창동 YIM, Chang Dong
Agents
  • 이원희 LEE, Won Hee
Priority Data
10-2012-000899530.01.2012KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) MAGNESIUM ALLOY HAVING HIGH DUCTILITY AND HIGH TOUGHNESS, AND PREPARATION METHOD THEREOF
(FR) ALLIAGE DE MAGNÉSIUM D'UNE GRANDE DUCTILITÉ ET D'UNE GRANDE TÉNACITÉ ET SON PROCÉDÉ DE PRÉPARATION
(KO) 고연성 및 고인성의 마그네슘 합금 및 이의 제조방법
Abstract
(EN) 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.
(FR) La présente invention concerne un alliage de magnésium d'une grande ductilité et d'une grande ténacité et son procédé de préparation. Elle concerne plus précisément un alliage de magnésium d'une grande ductilité et d'une grande ténacité contenant de 1,0 à 3,5 % en poids d'étain (Sn) et de 0,05 à 3,0 % en poids de zinc (Zn), le reste étant du magnésium et les inévitables impuretés, ainsi que son procédé de préparation. D'après la présente invention, l'alliage de magnésium est préparé en ajoutant selon un rapport de teneur spécifique du zinc, et éventuellement un ou plusieurs éléments sélectionnés parmi l'aluminium, le manganèse et les éléments des terres rares, à un alliage de magnésium permettant un renforcement de précipitation et contenant une petite quantité d'étain de façon à former une petite quantité de précipités fins, ce qui, dans le même temps, réduit à un minimum une diminution de la ductilité d'un matériau due à des précipités excessifs et renforce une précipitation. L'alliage de magnésium présente donc d'importantes ductilité et ténacité comparé à un matériau d'extrusion préparé à partir d'un alliage de magnésium commercial classique. Par conséquent, il peut être appliqué à l'ensemble des secteurs industriels, notamment à celui du matériel de transport et autres.
(KO) 본 발명은 고연성 및 고인성의 마그네슘 합금 및 이의 제조방법에 관한 것으 로, 더욱 구체적으로는 1.0 ~ 3.5 중량% 의 주석(Sn), 0.05 ~ 3.0 중량% 의 아연 (Zn), 나머지 마그네슘 및 불가피한 불순물을 포함하는 것을 특징으로 하는 고연성 및 고인성의 마그네슘 합금 및 이의 제조방법에 관한 것이다. 본 발명에 따른 마그 네슘 합금은 적은 함량의 주석을 포함하는 석출강화가 가능한 마그네슘 합금에 아 연과 선택적으로 알루미늄, 망간 및 희토류 금속 중 1종 이상을 특정 함량비로 첨 가하여 제조함에 따라 미세한 석출상을 소량으로 형성시킴으로써, 과도한 석출상으 로 인한 재료의 연성 감소를 최소화하고 동시에 석출강화 효과를 이룰 수 있어 종 래의 상용 마그네슘 합금으로부터 제조되는 압출재에 비해 연성 및 인성이 우수하 므로 수송기기 등의 산업 전반에 적용할 수 있다.
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