Magnesium alloy az31 mg96al 3zn 1 foil material information. The following datasheet gives an overview of magnesium az31b alloy. Data sources include ibm watson micromedex updated 4 may 2020, cerner multum updated 4 may 2020, wolters kluwer updated. Hydroxyapatite coating on biodegradable az31 and mgca. As generally observed in annealed az31 sheets, both sheets show strong. Properties of az31 magnesium alloy sheet produced by twin. The solidus temperature line of the az31 mg alloy tsolidus,az31 is marked by a dashed line. Az31 with low calcium contentpe alloy is widely used for magnesium photoengraving sheet. The microstructure and texture of the rolled sheets were investigated via scanning electron microscopy sem, electron backscatter diffraction ebsd, and xray diffraction xrd. Az31b finds application in wide variety of uses including aircraft fuselages, cell phone and laptop cases, speaker cones and concrete tools. For mgli and especially mgin, grain size could be related to growth restriction as d 383 q. This process incorporates casting and hot rolling in one process. Preparation of corrosionresistant films on magnesium alloys.
Twin roll casting has been used to produce az31 magnesium alloy strip. The initial material used in this study was the commercialgrade mg alloy az31. We proposed a novel and environmentally friendly coating method, that is, steam coating, for az31 mg alloy 25,26. For this reason, considerable experimental research has focused on the cet on welds, although only very recently for mg. In addition, the mechanical properties of az91 mg alloy with mixed re has been improved efficiently, and its tensile strength s b can reach over 260mpa. Az31 magnesium alloy is the most ductile and the most popular amongst az wrought alloys mg alzn group. Novel stripcast mgal clad sheets with excellent tensile. When the amount of mixed re exceeds 5%, it will form coarse alre compounds, which can low the mechanical properties of mg alloy. Thickness inches nominal composition % balance is magnesium physical properties room temperature az31b. The phase composition, microstructure, and surface morphology of the ha coatings were investigated using xray diffraction and scanning electron microscopy. Fsw dissimilar material joining az31 6061 al intermetallics.
Mg, az31b and az31c have the same nominal composition and differ only in specification ranges. Effect of al content in the mgbased alloys on the composition and. Az31 magnesium alloy buy az31 magnesium alloy,magnesium. A novel ionothermal strategy for developing a chemical converison film on.
The surface morphology and chemical composition of the conversion layercoated az31 mg alloys were analysed using scanning electron microscopy sem attached to energy dispersive xray analysis edax. Constitutive analysis of az31 magnesium alloy plate. Soft as it is, this alloy offers good combination of strength and ductility for structural application after deformation with severe reductions. Az31 magnesium alloy sheets with different strong textures were cryorolled at the liquidnitrogen temperature to the strain of 4% and 8%. The inplane mechanical anisotropy of magnesium alloy sheet, which significantly influences the design of the parts produced by mg alloy sheets, is of great importance regarding its wide application. The az31 alloy wrought magnesium tooling plate has the many benefits and special characteristics which gives the az31 many advantages like.
Az31b is a wrought magnesium base alloy with good roomtemperature strength and ductility combined with corrosion resistance and weldability. Most of the studies on the rvalue of mg alloy sheets are under inplane tension. Pdf surface modification of mg alloys az31 and zk601y by. The magnesium alloy rods az31 composition of mg 96 wt%, al 3 wt% and zn 1 wt% having the diameter and height of 2. Preparation of corrosionresistant films on magnesium. The chemical composition of the az31b magnesium alloy is presented in table 1. Microstructure analysis of az31 magnesium alloy welds using. Biliary stent is a kind of endoscopic nonvascular stent to treat benign biliary stricture besides traditional surgical methods.
Two rolled and annealed sheets, 1 and 3 mm thick, were used. Formation of a mudcrack pattern was ensured from the sem morphologies. A film composed of crystalline mgoh2 and mgal layered double hydroxide ldh was successfully formed on az31 mg alloy, and its corrosion resistance was evaluated through. Research works were conducted for az31 magnesium alloy, which chemical composition and structure is shown in table 1. Mg alloys, as lightestweight metal alloys in practical uses, have many advantages such as excellent specific strength, damping capacity, electromagnetic shielding properties, and dimensional stability 1,2,3. A comparative electrochemical study of az31 and az91. Hydroxyapatite coating on biodegradable az31 and mgca alloys.
The initial microstructures of the two az31 sheets were formed of equiaxed recrystallized grains with average intercept sizes of 10 and. Consolidated melting gel coatings on az31 magnesium alloy with. The chemical composition of az31 magnesium alloys is shown in table 1. Etching magnesium plate magnesium alloy sheet az31 az31b. Magnesium alloys have a hexagonal lattice structure, which affects the fundamental properties of these alloys. Jan, 2017 as for the present study, the calculated average weight change of az31 were 0. Download table chemical composition of az31 magnesium alloy mass fraction. Hence, understanding the deformation mechanisms which drive microstructural and texture evolution of mg alloys during forming rather than postforming is crucial to achieve optimized processing and end products. This chapter introduces a novel, chemicalfree steam coating method for preparing films on magnesium mg alloys and assesses their effectiveness in improving the corrosion resistance of two different mg alloys. Sealing of anodized magnesium alloy az31 with mgal layered.
According to the comparison of the temperature distributions of the solid al and liquid mg alloys with the solidus temperature of the az31 mg alloy t solidus,az31, dashed line in bd, the. Chemical composition of mgal based alloy and applications. The size of the cast strip is 5mm thick and 250mm wide. A comparative study has been carried out on az31 and az91 magnesium alloys in order to understand the electrochemical behavior in both alkaline and chloride containing solutions. Ldhs were prepared in deionized water only without adding extra salts in this novel method.
Download table chemical composition of az31 magnesium alloy mass fraction, % from publication. The composition line of this vertical section is shown as a dashed line in fig iv. The concentration of al increases linearly from 0 to about 10 wt%, which is the solubility limit of al in mg at 673 k. The open circuit potential ocp was examined in 1 m naoh and 3. Contact sales for all magnesium stock and extrusion requirements. The samples of mg alloy rods were polished mechanically using sandpaper of different grit. Absorbs vibration for much more lifetime, while keeping dimensional stability, 4 to 5 times greater tool life, up to 5 times more machinable than rolled aluminum, machine dry, without oil or chemicals. Friction stir welding of az31b magnesium alloy with 6061t6. Novel stripcast mgal clad sheets with excellent tensile and. Metals free fulltext influence of the composition of the hanks.
Az31b is a wrought magnesium alloy with good roomtemperature strength and ductility combined with corrosion resistance and weldability. Provatasc,a adepartment of materials science and engineering, mcmaster university, hamilton, on, canada l8s 4l7 bdepartment of mechanical and mechatronics engineering, university of waterloo, waterloo, on, canada n2l 3g1 c department of physics, mcgill university. Specifications ams 4360 az80at5 forging cancelled qqm40b qqm31b astm b107 astm b91. At 6% aluminum, the mgal phase diagram deduces the interaction of two phases. On cooling a melt of the az91 alloy, mg solid solution precipitates as primary phase when crossing the liquidus at a temperature of 600 c. Chemical composition of az31 magnesium alloy mass fraction. Formability of az31 mg alloy sheets within medium temperatures. As for the present study, the calculated average weight change of az31 were 0.
The microstructure and mechanical properties of az31 magnesium. Magnesium alloys are light weight and feature superior machinability and ease of casting. Prior to the experiments, the tubes were chemical polished in polishing solution 20 ml glycerol, 2 ml hydrochloric acid, 3 ml nitric acid and 5 ml acetic acid, and then rinsed in ethanol and. This standard covers magnesium tooling plate of one grade and quality offered for sale for use in jigs, fixtures, gauges and other applications. It is well known that, from the mechanical point of view. The results revealed good antibacterial which is needed for ureteral stent 17. In most cases, localized corrosion, such as pitting corrosion and filiform corrosion, generally occurs due to microgalvanic corrosion between the. In addition, the in vitro test of mg 4y alloy, az31 alloy and pure mg in artificial urine was reported. Additionally, the iso numeric designation is wd21151.
The mechanical properties of the sheets were tested through inplane uniaxial. Microstructure and mechanical properties of cryorolled az31. The morphology, structure, and composition of the films were charac. In this task, we designed novel experimental techniques to investigate the deformation behavior during sheet bending of az31 mg alloys. The current book comprises a study on twin roll casting trc of az31 magnesium alloy. In this work, anodized magnesium alloy az31 with and without boiling water. A thin film of hydroxyapatite ha was deposited on az31 and mgca alloys by using radio frequency rf magnetron sputtering. Enhanced mechanical properties of surface treated az31. The az31 magnesium alloy sheets in fully annealed state after hot rolling with the thickness of 1. It has a very high melting temperature among the magnesium alloys in the database. The properties of az31b magnesium include four common variations.
Az31 magnesium alloy is the most ductile and the most popular amongst az wrought alloys mgalzn group. Surface modification of mg alloys az31 and zk601y by high current pulsed electron beam gao bo, hao yi, zhang wenfeng and tu ganfeng school of materials and metallurgy, northeastern university, shenyang china 1. The following table shows the chemical composition of magnesium az31b alloy. In the end, ultrasonication cleaning process was performed to clean by using acetone, absolute. How oems can make their parts better, faster, and more efficient. Corrosion of mg alloys depends greatly on their composition and microstructure grain size, the size, shape and distribution of second phases, postprocessing and media. Chemical composition physical properties mechanical properties thermal properties other designations introduction. With respect to inplane compressions, the rvalues are usually less than 1 11,16,19, and even negative values have been observed 20,21. Magnesium alloy az31 foil standard products click here. Magnesium tooling plate standards metalmart international, inc. Magnesium is a silverywhite metal which is used as an alloy element for zinc, lead, aluminum, and other nonferrous alloys. We supply az31, az61, az80, and zk60 alloys, among others.
Surface modification of mg alloys az31 magnesium corrosion. Microstructure analysis of az31 magnesium alloy welds using phase. Nov 12, 2012 chemical composition physical properties mechanical properties thermal properties other designations introduction. Fundamentals and advances in magnesium alloy corrosion. Nov, 2012 magnesium az31b alloy is available in different forms such as plate, sheet, and bar. Trc process is an attractive manufacturing process in terms of sheet production. Influence of bicarbonate concentration on the conversion. Modelling of superplastic forming of az31 magnesium alloy. The phase composition, microstructure, and surface morphology of the ha coatings were investigated using xray. Surface modification of mg alloys az31 and zk601y by high current pulsed electron beam 35 fig.
Magnesium mg alloys are susceptible to corrosion in aggressive environments. Introduction to magnesium alloys asm international. It is found that tensile rvalues increase significantly 1 with straining, which are attributed to the strong basal texture and hcp crystallographic structure 11,16,17,18. Mapping the mechanical properties of alloyed magnesium az 61. It is an alternative to aluminum alloys as it has high strength to weight ratio. Effect of interlayer composition on the microstructure and strength of diffusion bonded mgal joint. Microstructure analysis of az31 magnesium alloy welds. Increased strength is obtained by strain hardening with a subsequent partial anneal h24 and h26 tempers.
It is widely available when compared to other magnesium grades. The magnesium technology symposium, the event on which this collection is based, is one of the largest yearly gatherings of magnesium specialists in the world. Surface modification of mg alloys az31 and zk601y by high. Az31b can be superformed at elevated temperatures to produce a wide. A full bar means this is the highest value in the relevant set.
Surface composition analysis of mg alloy az31 before and after hcpeb surface. The microstructure of the ascast az31 alloy strip consists of columnar zones from the surface to midthickness region and equiaxed zones in the midthickness region. Plastic deformation of the hexagonal lattice is more complicated than in cubic. Az31 alloy tubes were processed from asextruded az31 alloy, with the external diameter of 2. Papers represent all aspects of the field, ranging from primary production to applications to recycling. However, industrial applications of mg alloys are quite limited because of their critical shortcomings such as poor formability, surface quality, and corrosion resistance. Introduction the quality of mg alloys with high specific modulus and specific strength is the lightest in the structural materials. Az61a and az80a has good strength and ductility 12.
Properties of az31 magnesium alloy wplyw ilosci przejsc w procesie ecap na mikrostrukture i wlasciwosci mechaniczne stopu magnezu az31 the aim of this work was to investigate the in. Mapping the mechanical properties of alloyed magnesium az. The graph bars on the material properties cards below compare az31bf magnesium to other magnesium alloys top and the entire database bottom. Magnesium az31b alloy is available in different forms such as plate, sheet, and bar. Pdf fundamentals and advances in magnesium alloy corrosion. The thickness of the ha coating was determined to be 750 nm. Magnesium tooling plate is made to az31 composition shown in the chemical composition of magnesium tooling plate table below.
126 1325 619 84 1162 1106 1383 1282 498 1133 602 812 955 1382 857 1006 1399 663 487 922 138 526 310 1470 639 1155 59 549 1544 304 797 697 364 1358 1110 741 369 794 1167 341 180 704 1027 258 879 993