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Magnalium (5739 views - Material Database)

Magnalium is an aluminium alloy with magnesium and small amounts of nickel and tin. Some alloys, intended for particular uses at the cost of poor corrosion resistance, may consist of up to 50% magnesium. It finds use in engineering and pyrotechnics.
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Magnalium

Magnalium

Magnalium is an aluminium alloy with magnesium and small amounts of nickel and tin.[1] Some alloys, intended for particular uses at the cost of poor corrosion resistance, may consist of up to 50% magnesium. It finds use in engineering and pyrotechnics.

Properties

Alloys with smaller amounts of magnesium (about 5%) exhibit greater strength, greater corrosion resistance, and lower density than pure aluminium. Such alloys are also more workable and easier to weld than pure aluminium.[2] Alloys with high amounts of magnesium (around 50%) are brittle and more susceptible to corrosion than aluminium.

Uses

Although they are generally more expensive than aluminium, the high strength, low density, and greater workability of alloys with low amounts of magnesium leads to their use in aircraft and automobile parts. Alloys with about 50% magnesium are brittle and corrode easily, which makes them unsuitable for most engineering uses. However, these alloys are flammable when powdered, are more resistant to corrosion than pure magnesium, and are more reactive than pure aluminium and are therefore used in pyrotechnics as a metal fuel and to produce sparks. Magnalium powder also burns with a crackling sound if burnt by itself, and provides a good compromise between the reactivity of magnesium, and the stability of aluminium. Another benefit for pyrotechnics is the brittleness of the alloy, as mentioned before. It is easily broken with a hammer and then ground in a coffee grinder to usable powder. It will grind in a ball mill into a fine powder in a matter of hours, as opposed to a matter of days with aluminium powder.

It is much more powerful than aluminium powder (when compared at similar mesh size) and similar precautions should be taken as per magnesium. These include dangers of moisture and incompatibility with other compounds (boric acid and ammonium compounds).It is also used for making balance beam and light instruments

See also


AlnicoAlüminyumAluminium-lithium alloyArsenical copperBerilyumBirmabrightBizmutKromKobaltBakırDuraluminGalyumCamAltınHiduminiumHydronaliumİndiyumDemirItalmaKurşunMagnezyumMercuryNikelPlastikPlexiglasPlütonyumPotasyumRodyumSamaryumSkandiyumGümüşSodyumPaslanmaz çelikÇelikStructural steelKalayTitanyumUranyumÇinkoZirkonyumAlüminyum alaşımlarıY alloyWood's metalRose's metalChromium hydrideNichromeMegalliumStelliteVitalliumBeryllium copperBillon (alloy)Pirinç (alaşım)Calamine brassChinese silverDutch metalGilding metalMuntz metalPinchbeck (alloy)TombacBronzAluminium bronzeArsenical bronzeBell metalFlorentine bronzeGlucydurGuanín (bronze)GunmetalPhosphor bronzeOrmoluSpeculum metalConstantanCopper hydrideCopper–tungstenCorinthian bronzeCunifeCupronickelCymbal alloysDevarda's alloyElektrumHepatizonManganinMelchior (alloy)Alman gümüşüMolybdochalkosKuzey altınıShakudōTumbagaAlGaGalfenolGalinstanColored goldRhoditeCrown goldElinvarField's metalFernicoFerroalloyFerroceriumFerrochromeFerromanganeseFerromolybdenumFerrosiliconFerrotitaniumFerrouraniumInvarDökme demirIron–hydrogen alloyPig ironKanthal (alloy)KovarStaballoyBulat steelCrucible steel41xx steelŞam çeliğiMangalloyHigh-speed steelMushet steelMaraging steelHigh-strength low-alloy steelReynolds 531Electrical steelSpring steelAL-6XNCelestriumAlloy 20Marine grade stainlessMartensitic stainless steelSanicro 28Surgical stainless steelZeron 100Silver steelTool steelWeathering steelWootz steelSolderTerneType metalElektron (metal)AmalgamMagnox (alloy)AlumelBrightrayChromelHaynes InternationalİnkomelMonelNicrosilNisilŞekil Hafızalı AlaşımlarMu-metalPermalloySupermalloyNickel hydridePlutonium–gallium alloySodium-potassium alloyMischmetalLityumTerfenol-DPseudo palladiumScandium hydrideSamarium–cobalt magnetArgentium sterling silverBritannia silverDoré bullionGoloidPlatinum sterlingShibuichiSom gümüşTibetan silverTitanium Beta CTitanium alloyTitanium hydrideGum metalTitanium goldTitanyum nitritBabbitt (alloy)Britannia metalPewterQueen's metalWhite metalUranium hydrideZamakZirconium hydrideHidrojenHelyumBorAzotOksijenFlorMetanMezzanineAtom

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