Prepn process of deformed magnesium alloy with superfine grain structure

A technology of deforming magnesium alloys and ultra-fine grains, which is applied in the field of magnesium alloy forming, can solve problems such as difficult control, difficult die-casting of large components, and restrictions on the development of magnesium alloys, so as to save man-hours, energy, and procedures.
CN1403621AInactive Publication Date: 2003-03-19INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Publication Date
2003-03-19
Estimated Expiration
Not applicable · inactive patent
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Abstract

The present invention is the preparation process of deformed magnesium alloy with superfine grain structure. The present invention features the solid solution treatment of magnesium alloy at 330-370 deg.c for 1-2 hr; aging at 130-160 deg.c for 8-10 hr; and final once isothermal deformation at 330-370 deg.c to result in a deformation amount over or equal to 75%. Regulating the deformation temperature to the solid solution temperature zone makes it possible to obtain the great deformation amount in once process and this avoid the negative effect on the crystal grain growth caused by multiple softening treatments.
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Description

Technical field:

[0001] The invention relates to the magnesium alloy forming technology, and in particular provides a preparation method of a deformed magnesium alloy with superfine grain structure and thus superplasticity. Background technique:

[0002] Due to its light weight and high specific strength, magnesium alloy can be widely used in aerospace, aviation, communication, automobile and other fields. To this end, the U.S. Department of Energy has invested a huge amount of money to support the Argonne National Laboratory to conduct feasibility assessment research on wrought magnesium alloys to replace aluminum and steel. As part of the 2000 high-tech development plan, Germany invested 25 million marks in the MADICA development project to solve forward-looking and key research issues in the development and application of magnesium alloys, so as to accelerate the use of magnesium alloys in the fields of computers, aviation, communications and automobiles Applications. M...

Claims

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