ALLOY FOR MAGNESIUM AND MAGNESIUM ALLOY GRAIN REFINEMENT AND PREPARATION METHOD THEREOF
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United States of America Patent
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Jul 30, 2015
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Nov 21, 2012
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Aug 15, 2012
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Abstract
The present invention provides an alloy for magnesium and magnesium alloy grain refinement, and a preparation method thereof, the alloy as a grain refiner being an aluminum-zirconium-boron intermediate alloy comprising the following chemical compositions by weight percent: 5-20% of Zr, 0.5-4% of B, and the balance being Al. The invention can achieve the following technical effect: an intermediate alloy with strong nucleation capability and excellent capability of magnesium and magnesium alloy grain refinement is invented and its preparation method is provided. This kind of grain refiner can be applied to casting deformation plastic processing of magnesium and magnesium alloy profiles, with high degree of refinement, to promote the extensive industrial applications of magnesium.
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