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Magnalium (10081 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


Alnico알루미늄Aluminium-lithium alloyArsenical copper베릴륨Birmabright비스무트크로뮴코발트구리두랄루민갈륨유리HiduminiumHydronalium인듐Italma마그네슘머큐리니켈플라스틱Plexiglas플루토늄칼륨로듐사마륨스칸듐나트륨스테인리스강강철Structural steel주석 (원소)타이타늄우라늄아연지르코늄알루미늄 합금Y alloy우드 합금Rose's metalChromium hydride니크롬MegalliumStelliteVitallium베릴륨구리Billon (alloy)황동Calamine brassChinese silverDutch metalGilding metalMuntz metalPinchbeck (alloy)Tombac청동알루미늄 청동Arsenical bronzeBell metalFlorentine bronzeGlucydurGuanín (bronze)GunmetalPhosphor bronzeOrmoluSpeculum metalConstantanCopper hydrideCopper–tungstenCorinthian bronzeCunife백동Cymbal alloysDevarda's alloy호박금HepatizonManganinMelchior (alloy)양은Molybdochalkos노르딕 골드ShakudōTumbagaAlGaGalfenolGalinstanColored goldRhoditeCrown goldElinvarField's metalFernicoFerroalloy페로세륨FerrochromeFerromanganeseFerromolybdenumFerrosiliconFerrotitaniumFerrouraniumInvar주철Iron–hydrogen alloy선철Kanthal (alloy)KovarStaballoyBulat steelCrucible steel41xx steel다마스쿠스 강MangalloyHigh-speed steelMushet steelMaraging steelHigh-strength low-alloy steelReynolds 531Electrical steelSpring steelAL-6XNCelestriumAlloy 20Marine grade stainlessMartensitic stainless steelSanicro 28Surgical stainless steelZeron 100Silver steelTool steelWeathering steelWootz steel땜납TerneType metalElektron (alloy)아말감Magnox (alloy)AlumelBrightrayChromelHaynes InternationalInconelMonelNicrosilNisilNickel titaniumMu-metal퍼멀로이SupermalloyNickel hydridePlutonium–gallium alloy나크Mischmetal리튬Terfenol-DPseudo palladiumScandium hydrideSamarium–cobalt magnetArgentium sterling silverBritannia silverDoré bullionGoloidPlatinum sterlingShibuichi스털링 실버Tibetan silverTitanium Beta CTitanium alloyTitanium hydrideGum metalTitanium goldTitanium nitride배빗메탈Britannia metal퓨터Queen's metalWhite metalUranium hydrideZamakZirconium hydride수소헬륨붕소질소산소플루오린메테인Mezzanine원자

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