Novel magnesium alloy with high medical performance

A technology of magnesium alloy and high performance, which is applied in the field of selective laser melting preparation technology and heat treatment, can solve the problems of corrosion resistance, poor wear resistance, loss of mechanical integrity, etc., and achieve excellent biocompatibility and mechanical compatibility Effect
CN109439986AActive Publication Date: 2019-03-08陕西智宇寰宸医疗器械有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
陕西智宇寰宸医疗器械有限公司
Publication Date
2019-03-08

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Abstract

The invention discloses a novel magnesium alloy with high medical performance. The novel magnesium alloy is prepared through the following method which comprises the steps that various magnesium alloycomponents are subjected to ball grinding, levigation and mixing; German SLM Solutions 500 is adopted for selective laser melting treatment; magnesium alloy products generated after selective laser melting treatment are sequentially subjected to 580-800DEG C incomplete quenching for 1 h to 3 h and 200-280DEG C tempering for 1.5 h to 2.5 h; and finally finished products are obtained through cutting. Alloy powder components are adopted, molybdenum, tantalum, chromium and titanium all have good corrosion resistance, the corrosion resistance of the magnesium alloy can be enhanced, and the tensilestrength of the magnesium alloy can be improved.
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Description

Technical field

[0001] The invention relates to a selective laser melting preparation process and a heat treatment method capable of enhancing the medical performance of magnesium alloys. Background technique

[0002] Magnesium alloy has high specific strength and specific rigidity, and is the lightest metal structure material. The elastic modulus of Mg and its alloys is about 45 GPa, which is closer to human cortical bone 17-20 Gpa than other medical metal materials and can avoid stress. Shading effect; Mg density (1.74g / cm3) and human bone (1.75g / cm3) are also very close. Mg released by magnesium alloy in human body 2+ It can promote the growth, proliferation and differentiation of osteoblasts and accelerate the healing of injured bone tissues.

[0003] The body's cardiovascular stents, bone nails, bone plates and other bone implant materials need to be naturally degraded after the injured body is repaired. Compared with the traditional titanium alloy, the biggest advantage of ...

Claims

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