forming of the microtube of biodegradable magnesium alloys

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forming of the microtube of biodegradable magnesium alloys

Despriciton: FORMING OF THE MICROTUBE OF BIODEGRADABLE …FORMING OF THE MICROTUBE OF BIODEGRADABLE MAGNESIUM ALLOYS TO FABRICATE THE VASCULAR STENT In the present study, forming processes, i.e., hot indirect extrusion and multi-pass cold drawing were ... 14 mins Forming of magnesium alloy microtubes in the …The ZM21 magnesium alloy was used a...

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Advances in Biodegradable Magnesium Alloys for

Magnesium alloys,as new biodegradable materials,have attracted much more attentions in recent decades. The vascular stent is one of the most promising applications of biodegradable magnesium alloys. Otherwise,the poor plasticity and fast corrosion rate of magnesium alloys are two major restrictions for their clinical applications of vascular forming of the microtube of biodegradable magnesium alloys Biodegradable magnesiumbased biomaterials An Magnesium (Mg)based alloys have shifted into the focus as a new generation of degradable biomaterials for medical applications. Because biodegradable Mgbased alloys possess excellent biocompatibility and unique mechanical properties, deploying these biomaterials eliminates the need for biomaterial removal surgery after the healing process and diminishes adverse effects induced by forming of the microtube of biodegradable magnesium alloys

Biodegradable magnesiumbased biomaterials An

Magnesium (Mg)based alloys have shifted into the focus as a new generation of degradable biomaterials for medical applications. Because biodegradable Mgbased alloys possess excellent biocompatibility and unique mechanical properties, deploying these biomaterials eliminates the need for biomaterial removal surgery after the healing process and diminishes adverse effects induced by forming of the microtube of biodegradable magnesium alloys Deformation Behavior, Microstructure and Microhardness A microtube from coarse-grained as-cast AZ31 magnesium alloy using isothermal micro-backward extrusion was successfully fabricated. No visible defects and acceptable accuracy were found in the sample. Inhomogeneous microstructure due to the formation of shear bands and partial DRX phenomenon was observed. Deformation Behavior, Microstructure and Microhardness A microtube from coarse-grained as-cast AZ31 magnesium alloy using isothermal micro-backward extrusion was successfully fabricated. No visible defects and acceptable accuracy were found in the sample. Inhomogeneous microstructure due to the formation of shear bands and partial DRX phenomenon was observed.

Forming of magnesium alloy microtubes in the fabrication forming of the microtube of biodegradable magnesium alloys

In the present study, the forming processes, i.e., hot indirect extrusion and multi-pass cold drawing were used to fabricate seamless microtubes of a magnesium alloy. The magnesium alloy ZM21 was selected as a representative biomaterial for biodegradable stent applications. Forming of magnesium alloy microtubes in the fabrication forming of the microtube of biodegradable magnesium alloysMagnesium alloys have, in recent years, been recognized as highly promising biodegradable materials, especially for vascular stent applications. Forming of magnesium alloys into high-precision thin-wall tubes has however presented a technological barrier in the fabrication of vascular stents, because of the poor workability of magnesium at room forming of the microtube of biodegradable magnesium alloys Forming of magnesium alloy microtubes in the fabrication forming of the microtube of biodegradable magnesium alloysMagnesium alloys have, in recent years, been recognized as highly promising biodegradable materials, especially for vascular stent applications. Forming of magnesium alloys into high-precision thin-wall tubes has however presented a technological barrier in the fabrication of vascular stents, because of the poor workability of magnesium at room forming of the microtube of biodegradable magnesium alloys

Friction stir extrusion of ultra-thin wall biodegradable forming of the microtube of biodegradable magnesium alloys

Forming of magnesium alloy microtubes in the fabrication of biodegradable stents Prog Nat Sci - Mater Int. , 24 ( 2014 ) , pp. 500 - 506 , 10.1016/j.pnsc.2014.08.006 Article Download PDF View Record in Scopus Google Scholar Magnesium alloy covered stent for treatment of a lateral forming of the microtube of biodegradable magnesium alloysMagnesium alloy covered stents have rarely been used in the common carotid artery (CCA). We evaluated the long-term efficacy of magnesium alloy covered stents in a lateral aneurysm model in rabbit forming of the microtube of biodegradable magnesium alloys Manufacturing and mechanical characterization of Mg-4Y Using biodegradable magnesium microtubes for producing vascular stent have received a great deal of attention during the last decade. However, poor workability and low mechanical properties of Mg and its alloys pose an obstacle to manufacturing microtubes for stent application.

Microstructure and Micromechanical Properties of Mg forming of the microtube of biodegradable magnesium alloys

Gupta, M., Sharon, N.M.L., Magnesium, Magnesium Alloys, and Magnesium Composites, John Wiley s, New Jersey, (2011). Microstructure and performance of biodegradable Magnesium (Mg) alloy stents are expected to be the next generation of stents because of good biocompatibility and biodegradability. Compared with cold drawing, dieless drawing with local heating is an effective method for manufacturing the Mg alloy microtubes since a large reduction in area can be achieved in a single pass. Microstructure and performance of biodegradable magnesium forming of the microtube of biodegradable magnesium alloysMagnesium (Mg) alloy stents are expected to be the next generation of stents because of good biocompatibility and biodegradability. Compared with cold drawing, dieless drawing with local heating is an effective method for manufacturing the Mg alloy microtubes since a large reduction in area can be achieved in a single pass.

Modeling and Experimental Studies of Coating

glycolic acid) (PLGA), some of the biodegradable magnesium alloys have superior mechanical properties and uniform degradation process,811 which might lead to better long-term clinical behavior than that for BVS. However, the degradation rates of Mg alloys are still too high at the initial stage of implantation for the clinical requirements forming of the microtube of biodegradable magnesium alloys Processing and Properties of Biodegradable Magnesium and its alloys have attracted a great deal of attention in the field of biomedical applications, especially biodegradable stents. However, they have not been extensively used because of some inherent limitations such as poor mechanical properties and high corrosion rate. During the last decade, the selected fabrication methods for producing stent precursors is of great importance Processing of a Novel Zn Alloy Micro-Tube for forming of the microtube of biodegradable magnesium alloysIn the present study, the forming processes, i.e., hot indirect extrusion and multi-pass cold drawing were used to fabricate seamless microtubes of a magnesium alloy. The magnesium alloy ZM21 was selected as a representative biomaterial for biodegradable stent applications.

Resorbable bone fixation alloys, forming, and post forming of the microtube of biodegradable magnesium alloys

Metallic alloys have been introduced as biodegradable metals for various biomedical applications over the last decade owing to their gradual corrosion in the body, biocompatibility and superior strength compared to biodegradable polymers. Mg alloys possess advantageous properties that make them the Review on Advances in Metal Micro-Tube FormingBased on this technique, a concept for the manufacture of bio-absorbable micro/mini-tubes, made from magnesium alloys for vascular anastomosis and for stents was suggested, with fabricated outer tube diameters d o in the range of 0.4 up to 2 mm and 0.1 up to 1 mm, respectively, using the drawing with rigid dies as the final forming step . Review on Advances in Metal Micro-Tube FormingBased on this technique, a concept for the manufacture of bio-absorbable micro/mini-tubes, made from magnesium alloys for vascular anastomosis and for stents was suggested, with fabricated outer tube diameters d o in the range of 0.4 up to 2 mm and 0.1 up to 1 mm, respectively, using the drawing with rigid dies as the final forming step .

Review on Advances in Metal Micro-Tube Forming

Micro-forming can enable near-net-shape characteristics, an enhanced shaping of complex geometries, the possibility to produce micro-parts with a comparatively high sti ness and strength , and the applicability of a wide spectrum of materials. Moreover, in general, forming processes provide a high-volume production for micro-components, Review on Advances in Metal Micro-Tube FormingMicro-forming can enable near-net-shape characteristics, an enhanced shaping of complex geometries, the possibility to produce micro-parts with a comparatively high sti ness and strength , and the applicability of a wide spectrum of materials. Moreover, in general, forming processes provide a high-volume production for micro-components, The effects of a biodegradable Mg-based alloy on the forming of the microtube of biodegradable magnesium alloysBackground Restenosis is one of the worst side effects of percutaneous coronary intervention (PCI) due to neointima formation resulting from the excessive proliferation and migration of vascular smooth muscle cells (VSMCs) and continuous inflammation. Biodegradable Mg-based alloy is a promising candidate material because of its good mechanical properties and biocompatibility, and forming of the microtube of biodegradable magnesium alloys

US20190022276A1 - Biodegradable magnesium

A biodegradable magnesium alloy nerve conduit for nerve defect repair has multiple lines of through holes in the tube wall thereof, the through holes in each line are axially arranged along a circular tube at equal distances, and the through holes in adjacent lines are arranged in a staggered way. A method for preparing the nerve conduit includes steps of (step 1) processing a 45-degree forming of the microtube of biodegradable magnesium alloysCited by 24 Publish Year 2014 Author Lixiao Wang, Gang Fang, Lingyun Qian, Sander Leeflang, Jurek Duszczyk, Jie Zhou (PDF) Experimental and Numerical Investigations into forming of the microtube of biodegradable magnesium alloysForming of the microtube of biodegradable magnesium alloys to fabricate the vascular stent. forming of the microtube of biodegradable magnesium alloys Forming of magnesium alloys into high-precision thin-wall tubes has however presented a forming of the microtube of biodegradable magnesium alloysCited by 24 Publish Year 2014 Author Lixiao Wang, Gang Fang, Lingyun Qian, Sander Leeflang, Jurek Duszczyk, Jie Zhou (PDF) Forming of magnesium alloy microtubes in the forming of the microtube of biodegradable magnesium alloysThe magnesium alloy ZM21 was selected as a representative biomaterial for biodegradable stent applications. Microtubes with an outside diameter of 2.9 mm and a wall thickness of 0.2 mm were forming of the microtube of biodegradable magnesium alloys

Cited by 24 Publish Year 2014 Author Lixiao Wang, Gang Fang, Lingyun Qian, Sander Leeflang, Jurek Duszczyk, Jie Zhou Forming of magnesium alloy microtubes in the

In the present study, the forming processes, i.e., hot indirect extrusion and multi-pass cold drawing were used to fabricate seamless microtubes of a magnesium alloy. The magnesium alloy ZM21 was selected as a representative biomaterial for biodegradable stent applications. 14 mins Forming of magnesium alloy microtubes in the The ZM21 magnesium alloy was used as a representative material for biodegradable stents and subjected to hot and cold forming, including indirect extrusion and drawing to the dimensions of microtubes for stents. The dimensional accuracies and microstructure of microtubes along the forming process route were examined. 9 mins Forming of magnesium alloy microtubes in the Magnesium alloys have, in recent years, been recognized as highly promising biodegradable materials, especially for vascular stent applications. Forming of magnesium alloys into high-precision thin-wall tubes has however presented a technological barrier in the fabrication of

FORMING OF THE MICROTUBE OF BIODEGRADABLE

FORMING OF THE MICROTUBE OF BIODEGRADABLE MAGNESIUM ALLOYS TO FABRICATE THE VASCULAR STENT In the present study, forming processes, i.e., hot indirect extrusion and multi-pass cold drawing were forming of the microtube of biodegradable magnesium alloys

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