Method of Heat Treating Magnesium Alloys & Magnesium Grain Refining Using Vanadium

US 8,414,717 and US 8,784,579, assigned to Joka Buha, relate to energy technology, and are available for sale through IPApproach.

US Patents

2 granted

Assignee

Joka Buha

Availability

For Sale

Patents Included

• US 8,414,717↗
• US 8,784,579↗

Technology Highlights

• Age hardening of magnesium based alloys can be effected at significantly lower temperatures than are typically used during conventional T6 ageing,
• The tensile properties of most heat treatable magnesium alloys are limited compared to those of the currently used aluminum alloys, which is one of the main limitations for the wider application of magnesium alloys but the present invention includes a method to improve the tensile strength of magnesium alloys.
• The enhanced ageing response typically comprises at least an improvement in both tensile strength and ductility.
• The low temperature heat treatment is accelerated, resulting in improved mechanical properties, such as ductility, strength and hardness levels, comparable to or better than those in the T6 condition.
• Fracture toughness of alloys can be also significantly improved through age hardening.
• An increase in the heat treatment temperature and the change of GP zone type, size, morphology and density in general results in increase in tensile strength and hardness while the ductility and fracture toughness remain improved compared to the T6 condition.
• The inventive vanadium grain refiner is applicable to all magnesium-based alloys and to both cast and wrought magnesium based alloys, particularly those where magnesium comprises more than 75 wt % (weight percent).
• Presence of a trace amount of grain refiner like vanadium in the magnesium solid solution significantly improves the magnitude and kinetics of hardening during ageing.
• Refining Agent like Vanadium used in this invention has a multiple beneficial effect on some alloys, which is not observed with grain refiners such as zirconium or carbon and carbon-bearing compounds. This makes vanadium a highly suitable and preferred choice as grain refiner even for magnesium alloys that have traditionally been grain refined by zirconium.
• By using a grain refiner comprised of vanadium metal alone or vanadium metal in the combination with one or more alloying elements intended to be present in the magnesium alloy, it is possible to produce uniform grain size of cast alloys which is at least two times smaller than when the said grain refiner is not used, thereby significantly improving the mechanical properties of cast alloys and wrought products, particularly the tensile properties in the as-cast state.

Overview

IPApproach LLC, is pleased to present the attached exclusive patents for sale "METHOD OF HEAT TREATING MAGNESIUM ALLOYS" which include U.S. Patent US 8,414,717 B2 and "MAGNESIUM GRAIN REFINING USING VANADIUM" which include U.S. Patent US 8,784,579 B2 assigned to Joka Buha.

The patent US 8,414,717 B2 relates to the method for low temperature heat treatment of an age-hardenable magnesium based alloys. The technology disclosed provides the following advantages,

The patent US 8,784,579 B2 relates to process of grain refining magnesium metal or magnesium based alloy which includes the step of providing a melt of magnesium alloy wherein melting includes grain refining agent like vanadium. The technology disclosed provides the following advantages,

Listing updated August 21, 2026

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