Title:
METHOD FOR IMPROVING MOULDABILITY OF MAGNESIUM-ALLOY SHEET MATERIAL, AND MAGNESIUM-ALLOY SHEET MATERIAL PRODUCED THEREBY
Document Type and Number:
WIPO Patent Application WO/2013/122314
Kind Code:
A1
Abstract:
The present invention relates to a method for improving the mouldability of a magnesium-alloy sheet material, and to a magnesium-alloy sheet material produced thereby. The method for improving the mouldability of magnesium-alloy sheet material which is provided comprises the steps of: forming {10-12} bicrystals in the magnesium-alloy sheet material (step 1); and subjecting the magnesium-alloy sheet material of step 1 to an annealing heat treatment (step 2). Also, the magnesium-alloy sheet material which is provided comprises {10-12} bicrystals produced by means of the method. The method for improving the mouldability of a magnesium-alloy sheet material according to the present invention has the advantages that it is possible to artificially form {10-12} bicrystals in the magnesium alloy without any increase in electrical potential since compression deformation is applied to the magnesium-alloy sheet material in a direction parallel to the basal plane of the structure possessed by the sheet material, and also that it is possible to improve the mouldability of magnesium-alloy sheet materials at room temperature and when hot since the bicrystals easily absorb deformation that occurs during moulding through annihilation.
More Like This:
Inventors:
PARK SUNG HYUK (KR)
KIM YOUNG MIN (KR)
KIM HA SIK (KR)
YIM CHANG DONG (KR)
YOU BONG SUN (KR)
HONG SEONG GU (KR)
LEE CHONG SOO (KR)
LEE JEONG HUN (KR)
KIM HYUNG LAE (KR)
KIM YOUNG MIN (KR)
KIM HA SIK (KR)
YIM CHANG DONG (KR)
YOU BONG SUN (KR)
HONG SEONG GU (KR)
LEE CHONG SOO (KR)
LEE JEONG HUN (KR)
KIM HYUNG LAE (KR)
Application Number:
PCT/KR2012/010780
Publication Date:
August 22, 2013
Filing Date:
December 12, 2012
Export Citation:
Assignee:
KOREA MACH & MATERIALS INST (KR)
International Classes:
C22F1/06; C22C23/00
Foreign References:
| JP2010053386A | 2010-03-11 | |||
| KR20110007810A | 2011-01-25 | |||
| JP2010202897A | 2010-09-16 |
Other References:
PARK, S.H. ET AL.: "Effect of {10-12} Twinning Characteristics on the Deformation Behavior of Rolled AZ31 Mg Alloy", TRANSACTIONS OF MATERIALS PROCESSING, vol. 19, no. 7, 2010, pages 416 - 422
Attorney, Agent or Firm:
LEE, Won Hee (642-16 Yoksam-dongKangnam-ku, Seoul 135-080, KR)
Download PDF:
Claims: