High performance creep resistant magnesium alloys

An alloy and lightweight alloy technology, applied in the field of creep-resistant magnesium-based alloys, can solve problems such as high cost
CN105934529AActive Publication Date: 2016-09-07DEAD SEA MAGNESIUM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DEAD SEA MAGNESIUM
Publication Date
2016-09-07

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Abstract

A magnesium based alloy consisting of, by weight: at least 94.8% magnesium, 2.5-4.6% neodymium, 0.05-0.40% yttrium, and 0.03-0.65% zirconium and incidental impurities. Optionally, the alloy further contains up to 0.02wt% calcium. The alloy is suitable for high pressure die casting (HPDC) as well as for sand casting, investment casting, permanent mold casting, twin roll casting and direct chill casting. The disclosed alloy exhibits good castability, high strength, high corrosion resistance and high creep resistance at room temperature, as well as in high temperatures.
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Description

field of invention

[0001] The present invention relates to creep-resistant magnesium-based alloys for applications having good castability at elevated temperatures, particularly for high-pressure die casting, but beneficially also for applications including sand casting, investment casting Casting), metal casting (permanent mold casting) and direct chill casting (directchill casting) or twin-roll casting (twin-roll casting) process. Background technique

[0002] The magnesium industry is experiencing rapid growth, due in part to the needs of the transportation industry to improve fuel economy and emissions. Additionally, significant progress in weight reduction has been made in consumer applications of magnesium alloys, such as power hand tools, lawn and garden equipment, electronic and optical equipment, and the like. To significantly expand the above applications, new advanced alloys are required.

[0003] High pressure die casting (HPDC) is the predominant form of casti...

Claims

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