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Dissertations / Theses on the topic 'Magnesium Magnesium alloys Magnesium Magnesium alloys'

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Published: 4 June 2021

Last updated: 13 February 2022

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1

Carter, Ellen Angharad. "High Current Anodization of Magnesium and Magnesium Alloys." Thesis, University of Auckland, 1996. http://hdl.handle.net/2292/2289.

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High current anodization of magnesium and magnesium alloys Ellen Angharad Carter Pure magnesium and three magnesium alloys containing different amounts of aluminium (2-9%) plus zinc and manganese were anodized with constant current density in sodium hydroxide solution with and without fluoride or phosphate ions. Electric field strengths of resultant anodic films were calculated from galvanostatic transients. These transients showed three characteristic features: linear voltage increase, noisy high voltage signals accompanied by sparking, and sawtooth-like events characterized by instantaneous

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2

Sato, Takanori. "Power-law creep behaviour in magnesium and its alloys." Thesis, University of Canterbury. Mechanical Engineering, 2008. http://hdl.handle.net/10092/1576.

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Creep is a time-dependent deformation of materials under stress at elevated temperatures. The phenomenon of creep allows materials to plastically deform gradually over time, even at stress levels below its yield point or below its transformation temperature. The issues involving creep are especially significant for magnesium alloys, since they are susceptible to creep deformation from temperatures as low as 100 ºC, which inhibits their potential application in areas such as automotive engines. The University of Canterbury has developed a significant level of experience and infrastructure in th

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3

Mwembela, Aaron Absalom. "Hot workability of magnesium alloys." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0003/NQ39793.pdf.

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4

Jiang, Bo. "Solidification behaviour of magnesium alloys." Thesis, Brunel University, 2013. http://bura.brunel.ac.uk/handle/2438/8407.

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Magnesium alloys have been extensively used for structural and functional applications due to their low densities. In order to improve the mechanical properties, grain refinement of the microstructures of magnesium alloys has been studied for many years. However, an effective and efficient grain refiner or refinement technique hasn’t been achieved yet, especially for those with aluminium contained. In this study, solution for this problem has been discovered through further understanding of the solidification process, including the potency and the efficiency of nucleation particles, the role o

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5

Lee, Young. "Grain refinement of magnesium /." St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16885.pdf.

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6

Ramírez, Anthony. "Ultrasonic grain refinement of magnesium alloys." Thesis, University of Portsmouth, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494007.

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The thesis project investigates ultrasonic grain refinement (UGR) of magnesium alloys. It commences with a brief study of the grain refinement of both aluminium-containing and aluminium-free magnesium alloys, by means of typical inoculating additives. That provides a basis for understanding the effectiveness of ultrasonic grain refinement of magnesium alloys to be presented in the following chapters.

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7

Hoffmann, Ilona. "MAGNESIUM-TITANIUM ALLOYS FOR BIOMEDICAL APPLICATIONS." UKnowledge, 2014. http://uknowledge.uky.edu/cme_etds/36.

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Magnesium has been identified as a promising biodegradable implant material because it does not cause systemic toxicity and can reduce stress shielding. However, it corrodes too quickly in the body. Titanium, which is already used ubiquitously for implants, was chosen as the alloying element because of its proven biocompatibility and corrosion resistance in physiological environments. Thus, alloying magnesium with titanium is expected to improve the corrosion resistance of magnesium. Mg-Ti alloys with a titanium content ranging from 5 to 35 at.-% were successfully synthesized by mechanical all

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8

Sunseri, Erin Hannah. "Dendrite orientation in aluminum magnesium alloys." [Ames, Iowa : Iowa State University], 2009.

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9

Grace, Richard William. "Corrosion mechanisms and corrosion inhibition of commercial purity magnesium and advanced magnesium alloys." Thesis, Swansea University, 2012. https://cronfa.swan.ac.uk/Record/cronfa43082.

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10

Chama, Shadreck. "Mechanically alloyed aluminium-magnesium-lithium alloys : structure property relations." Thesis, University of Liverpool, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399120.

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11

Freeney, Timothy Alan. "Friction stir processing of cast magnesium alloys." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.mst.edu/thesis/pdf/Freeney_09007dcc804a9022_3_09007dcc8055e79b.pdf.

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Thesis (M.S.)--University of Missouri--Rolla, 2007.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed June 17, 2008) Includes bibliographical references.

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12

Barnackas, Irmantas. "Investigation of hydrogenation kinetics of magnesium and magnesium alloys in the ionized reactive atmosphere." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080919_140633-22213.

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In the present work Mg and MgAl thin films were fabricated using physical vapour deposition (PVD) technologies as non-traditional and new nanotechnology methods for designing high performance hydrogen storage materials. The physical vapour deposition technologies allow the formation of metastable metal, alloy and chemical compounds with strictly controlled composition, microstructure and stoichiometry at low temperatures. The synthesis of MgH2, MgAl and Mg(AlH4)2 films has been conducted in two steps: (i) fabrication of thin films employing magnetron sputtering in Ar gas, and (ii) hydrogenati

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13

Shi, Zhiming. "The corrosion performance of anodised magnesium alloys /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18391.pdf.

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14

Sanjari, Mehdi. "High strain rate deformation of magnesium alloys." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119590.

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The present study uses uniaxial compression testing over a wide range of strain rates to analyze the microstructure and texture evolution during high speed rolling (HSR) for AZ31B alloy and four Mg-Zn-Ce alloys. In the first part, the effects of strain rate on the flow behaviour and microstructure evolution on AZ31 Mg alloy were studied by compression testing over a wide range of strain rates (0.01-100 s-1) and temperatures (300-450 °C). In the second part, high-speed rolling of 1000 m/min was employed to successfully roll AZ31 alloy in one pass with 65% reduction in thickness at 300 °C and 45

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15

Yang, Xinliang. "Particle dispersion in aluminium and magnesium alloys." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/14437.

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High shear mixing offers a promising solution for particle dispersion in a liquid with intensive turbulence and high shear rate, and has been widely used in the chemical, food and pharmaceutical industries. However, a practical high shear mixing process has not yet been adapted to solve the particle agglomeration in metallurgy due to the high service temperature and reactive environment of liquid metal. In this study, the effect of high shear mixing using the newly designed rotor-stator high shear device have been investigated with both Al and Mg matrix composites reinforced with SiC particles

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16

Chen, Xi. "Corrosion Resistance Assessment of Pretreated Magnesium Alloys." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1282837277.

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17

Thornton, Robert. "Magnesium alloys as a bioresorbable implant material." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/magnesium-alloys-as-a-bioresorbable-implant-material(62b9e43f-bdee-4d89-8dc5-04a6d0c2a8a4).html.

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The use of magnesium as a bioresorbable implant material has been gaining large amounts of interest over the last five years. Mg alloys by nature corrode rapidly comparative to other engineering metals, Mg is also naturally found in the body, meaning it offers a potential degradable material which can support far higher stresses than the current biodegradable polymers. Magnesium Elektron wanted to gain an understanding of how Mg alloys would work in this new environment and find a potential alloy fit for purpose. This thesis outlines the progress the author and Magnesium Elektron have made in

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18

Behdad, Sadegh. "Novel Ternary Magnesium-Tin Alloys by Microalloying." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/2313.

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The objective of this research was to explore the possibility of developing novel Magnesium-Tin alloys with improved mechanical properties by micro-alloying. Magnesium is the lightest of all structural metals. It can be machined faster and with almost half the power required for aluminum. There is a limitless supply of magnesium in sea water and it can also be recycled at 5% of initial energy requirements. These properties make magnesium an ideal green alternative to replace metals and polymers in automotive, aerospace, biomedical and defense sectors. The potential weight reduction in the US a

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19

Joshi, Utsavi Mukeshbhai. "Grain refinement in aluminium containing magnesium alloys." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/13681.

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The novel grain refiners developed in this research could be broadly classified into borides and carbides. The motive behind choosing MgB2, AlB2 and their master alloys Mg-MgB2 and Mg-AlB2 as the grain refiners was driven by the crystallographic matching of the hexagonal borides with the magnesium crystal structure. Apart from this lightweight borides, denser borides such as CrB and WB have also shown excellent grain refinement in AZ91, AM50 and AZ31 alloys. It is suggested that the grain refinement effect in the magnesium alloys could be improved through a combined addition of bismuth along w

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20

Samuel, Ehab. "Serrated flow and enhanced ductility in coarse-grained Al-Mg alloys." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115867.

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Aluminum 5XXX alloys are of industrial importance and interest as they combine a wide range of desirable strength, forming and welding characteristics with a high resistance to corrosion. The presence of Mg in these alloys ensures favorable mechanical properties. However, the room temperature stretching performance of these alloys is limited. Moreover, Al-Mg alloys are known for being susceptible to the Portevin-LeChatelier effect when deformed at room temperature. Nevertheless, improvements in ductility can be achieved through warm forming, especially when the ductility approaches superplasti

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21

Vespa, Geremi. "Hot deformation behavior of magnesium AZ31." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99796.

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Automobile manufacturers are interested in lightweight materials, including magnesium, to increase vehicle fuel economy, improve performance and reduce emissions. In this work the deformation behavior of as-cast and rolled magnesium AZ31 alloy has been studied. In as-cast material, it was found that reheating at 400°C and above for 60 minutes increased the homogeneity of the as-cast structure and gave rise to repeatable deformation. At compression temperatures above 300°C dynamic recrystallization occurred; below 200°C, there was significant twinning. Annealing completely recrystallized the st

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22

Syvertsen, Alf Petter. "Alloys as Anode Materials in Magnesium Ion Batteries." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for materialteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-16778.

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This thesis is a feasibility study of the possible application of magnesium alloys forfuture magnesium-ion batteries. It investigates dierent alloys and characterizesthem with respect to internal resistance, overpotentials and the reversibility of theelectrochemical reaction. SEM and EDS studies of used electrodes have also beencarried out. It has been showed that alloys, easier to handle and at a fraction of thecost, can be used with equal or better performance than pure Mg. The seeminglysuperior alloy, AZ61 exhibits a coloumbic eciency close to 100%, at higher chargerates than pure Mg.

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23

Çelikin, Mert. "The creep behaviour of Magnesium-Manganese based alloys." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=110533.

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The concern for weight-reduction in vehicles has increased substantially in recent decades due to fuel consumption regulations. Extending the use of magnesium (Mg), the lightest structural metal, in automotive powertrain applications has been one of the routes to reduce vehicle weights. In this doctoral work, the creep behaviour of Mg-Mn based systems with cerium (Ce) and/or strontium (Sr) additions is studied in order to shed light into the new design principles for the development of creep-resistant Mg alloys. Transmission electron microscopy (TEM) is used to characterize the microstructures

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24

Masoumi, Mohsen. "Microstructure and texture studies on magnesium sheet alloys." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104722.

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The AZ3, the most common Mg sheet alloy, is currently produced by hot rolling of the DC cast ingot. Mg wrought alloys, in general have limited formability due to hexagonal close-packed structure and preferred orientation (texture). In order to improve magnesium sheet formability, a good understanding of microstructure and texture evolution in twin-roll casting is necessary. The objectives of this research are to study the microstructural and texture evolution in twin-roll cast AZ31 Mg sheet alloy and to develop/modify alloy compositions with improved mechanical properties (weakened texture).

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25

Ebeling, Timo [Verfasser]. "Plastic Deformation Modeling of Magnesium Alloys / Timo Ebeling." Aachen : Shaker, 2010. http://d-nb.info/1122546262/34.

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26

Jia, Jimmy Xueshan. "Computer modelling of galvanic corrosion of magnesium alloys /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18932.pdf.

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27

Garboggini, Araripe do Amaral. "Structure and properties of rapidly solidified magnesium alloys." Thesis, Imperial College London, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313041.

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28

Henry, Dominic Thomas. "Particle Effects on Recrystallisation in Wrought Magnesium Alloys." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503003.

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29

Van, Pelt Jacqueline G. Shaw Barbara A. "Magnesium alloys for use in bioabsorbable cardiac stents." [University Park, Pa.] : Pennsylvania State University, 2009. http://honors.libraries.psu.edu/theses/approved/WorldWideIndex/EHT-6/index.html.

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30

Esho, Faris Nora. "Creep Properties of Magnesium Alloys AE44 and AZ91." Thesis, Högskolan i Jönköping, Tekniska Högskolan, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-44261.

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31

Bhat, Panemangalore Devadas. "Development of magnesium-based alloys for biomedical applications." Thesis, Lille, 2019. http://www.theses.fr/2019LIL1R002.

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Étant donné leur capacité à se dégrader à l'intérieur du corps, les implants biodégradables ont fait l'objet de nombreuses recherches médicales. Parmi tous les matériaux, c'est le magnésium, un élément indispensable du corps humain, qui conduit aux résultats les plus favorables car son module d'Young est similaire à celui de l'os. De ce fait, les méthodes adoptées afin d'améliorer le comportement du magnésium pur vis-à-vis de la corrosion sont les suivantes: a)Ajout d'éléments d'alliage comme le zinc, le calcium et l'erbium (Mg-2Zn-2Er, Mg-2Zn-0.6Ca-1Er, etc.) pour contrôler le comportement de

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32

Contreras, Vásquez Luis Felipe. "Mechanical synthesis of magnesium alloys for hydrogen storage." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8302/.

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In this work, synthesis, characterisation and hydrogen sorption properties of MgH2, Mg-Li alloy, NaMgH3, Li substitution in NaMgH3, Ca-Mg-H, and Li/Na substitution into Ca-Mg-H ternary systems have been investigated. Samples were ball milled under Ar or H2 for 2, 5, 10 or 15 h; then characterized by X-ray diffraction (XRD), Raman Spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis coupled with a mass spectrometer (TGA-MS). The compositional changes and reversibility were investigated using in-situ XRD. The X-ray intensities decreased with increasing milling, which

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33

Raghunathan, N. "Thermal and mechanical processing of aluminium magnesium alloys." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/47726.

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34

Pouillier, Édouard. "Hydrogen-induced Intergranular Fracture of Aluminum-Magnesium Alloys." Paris, ENMP, 2011. http://www.theses.fr/2011ENMP0095.

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Les alliages d'aluminium de la famille 5XXX (Al-Mg) sont utilisés dans la fabrication de pièces de structure en raison de leurs bonnes propriétés mécaniques, de soudabilité et de résistance à la corrosion. Toutefois, dans des conditions d'utilisation sévères, une synergie entre la déformation plastique et les réactions de corrosion se produit et entraîne une fissuration intergranulaire, par corrosion sous contrainte (CSC), voire par fragilisation par l'hydrogène (FPH). La ductilité passe de 50% à quelques %, montrant une fissuration fragile. La compréhension des mécanismes qui régissent ce typ

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35

Rocha, Patrick Thierry Almeida da. "Understanding corrosion mechanisms of novel biodegradable magnesium alloys." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/21878.

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Mestrado em Engenharia de Materiais<br>A biodegradação de biomateriais em ordem a conseguir uma dissolução completa de um determinado equipamento após a realização do seu propósito, tem sido visto como uma ideia atrativa pela comunidade cientifica, devido ao elevado potencial nas melhorias a qualidade de vida do paciente e devido aos custos pós operatorios que podem ser melhorados. O comportamento de biodegradação é consequência da elevada susceptibilidade à corrosão, inerente às ligas metálicas como o magnésio. Esta característica deve-se à instabilidade química causada pela inserção das lig

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36

Griffiths, David Glyndwr John. "Understanding texture weakening in magnesium rare earth alloys." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/understanding-texture-weakening-in-magnesium-rare-earth-alloys(3823f6a8-bba7-415f-9326-adc1b1655c8c).html.

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Magnesium has the lowest density of any structural metal making it a strong candidate for weight savings in the aerospace and automotive industries. However, strong crystallographic textures combine with anisotropic deformation modes to severely limit formability in wrought magnesium alloys. Recently improved formability has been achieved by the addition of small concentrations of solute rare earth elements which reduce the intensity of recrystallisation textures. Developing a mechanistic understanding of this effect is critical in leading alloy design towards a new class of highly formable wr

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37

Harrison, Andrew William. "High strain rate superplasticity of aluminium-magnesium alloys." Thesis, Imperial College London, 2003. http://hdl.handle.net/10044/1/7821.

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38

Barber, Lee P. "Characterization of the solidification behavior and resultant microstructures of magnesium-aluminum alloys." Link to electronic thesis, 2004. http://www.wpi.edu/Pubs/ETD/Available/etd-12234-112022/.

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39

Wiese, Björn Verfasser], and Rainer [Akademischer Betreuer] [Schmid-Fetzer. "The Effect of CaO on Magnesium and Magnesium Calcium Alloys / Björn Wiese ; Betreuer: Rainer Schmid-Fetzer." Clausthal-Zellerfeld : Technische Universität Clausthal, 2017. http://d-nb.info/1231364858/34.

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40

KUPFER, JOHN CARLTON. "A SEARCH FOR CHANGES IN THE BAND STRUCTURE OF EXTREMELY STRAIN-FREE MAGNESIUM-CADMIUM CRYSTALS AS A FUNCTION OF ALLOYING, IN THE DILUTE LIMIT (DE HAAS-VAN ALPHEN, FERMI SURFACE)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/187953.

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We report here a study of a specific doublet of de Haas-van Alphen frequencies in pure Mg and very dilute Mg(Cd) alloys with the magnetic field aligned with the c-axis. The work involved three stages. First, the use of extremely strain-free crystals, temperatures down to 40 millidegree Kelvin, large amplitude modulation, and the fast Fourier transform allowed the components of this doublet to be well resolved. This resolution allowed measurement of the changes in the cross-sectional area as a function of magnetic field orientation to verify the assignment of this doublet to the cap and monster

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41

Zhang, Zhan. "Development of magnesium-based alloys for elevated temperature applications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0026/NQ52270.pdf.

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42

Williams, J. R. "Corrosion of aluminium-copper-magnesium metal matrix composites." Thesis, University of Nottingham, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239852.

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43

Shang, Lihong. "Effect of microalloying on microstructure and hot working behavior for AZ31 based magnesium alloy." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115880.

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The formability of Mg alloy sheet in the as-hot rolled condition depends on the microstructure developed during hot rolling. In general, the formability of Mg alloys is improved by finer grain sizes. 'Microalloying' levels of calcium (Ca), strontium (Sr), and cerium (Ce) have been found to refine the as-cast structure, but there is no information as to whether this effect will be reflected in the as-hot worked structure and formability. Thus, in this work, the effects of microalloying levels of calcium (Ca), strontium (Sr), and cerium (Ce) on the microstructures (from as-cast to as-hot rolled)

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44

Abu, Leil Tarek. "Development of new magnesium alloys for high temperature applications." Clausthal-Zellerfeld Universitätsbibliothek Clausthal, 2010. http://d-nb.info/1001190777/34.

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45

Abu-Farha, Fadi K. "INTEGRATED APPROACH TO THE SUPERPLASTIC FORMING OF MAGNESIUM ALLOYS." UKnowledge, 2007. http://uknowledge.uky.edu/gradschool_diss/493.

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The economical and environmental issues associated with fossil fuels have been urging the automotive industry to cut the fuel consumption and exhaust emission levels, mainly by reducing the weight of vehicles. However, customers increasing demands for safer, more powerful and luxurious vehicles have been adding more weight to the various categories of vehicles, even the smallest ones. Leading car manufacturers have shown that significant weight reduction, yet satisfying the growing demands of customers, would not be feasible without the extensive use of lightweight materials. Magnesium is the

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46

Yuan, Yudie. "Localised corrosion and stress cracking of aluminium-magnesium alloys." Thesis, University of Birmingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433422.

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47

Yi, Xiaodong. "Rapidly solidified magnesium : nickel alloys as hydrogen storage materials." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/5174/.

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Due to high hydrogen capacity, good reversibility and low cost, magnesium hydride is one of the most promising hydrogen storage materials. However, the high desorption temperature and slow hydriding kinetics hinder the application of magnesium hydrides. To improve the hydrogen storage characteristics of magnesium hydrides, many effective treatments have been developed and applied, such as ball milling, melt spinning, alloying with other metals, adding catalysts and using thin film technique. In this work, melt spinning and alloying with Ni were the main sample modification methods used to impr

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48

Narsimhan, Raghunathan. "Thermal and mechanical processing of commercial aluminium magnesium alloys." Thesis, Imperial College London, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395772.

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49

Reese, Gregory A. "Dissimilar Friction Stir Welding Between Magnesium and Aluminum Alloys." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc955097/.

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Joining two dissimilar metals, specifically Mg and Al alloys, using conventional welding techniques is extraordinarily challenging. Even when these alloys are able to be joined, the weld is littered with defects such as cracks, cavities, and wormholes. The focus of this project was to use friction stir welding to create a defect-free joint between Al 2139 and Mg WE43. The stir tool used in this project, made of H13 tool steel, is of fixed design. The design included an 11 mm scrolled and concave shoulder in addition to a 6 mm length pin comprised of two tapering, threaded re-entrant flutes tha

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50

Rashed, Hossain Mohammad Mamun. "Composition and microstructure effects on superplasticity in magnesium alloys." Thesis, University of Manchester, 2010. https://www.research.manchester.ac.uk/portal/en/theses/composition-and-microstructure-effects-on-superplasticity-in-magnesium-alloys(ba55b973-c9fa-459b-a1e8-ff77017811b9).html.

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Magnesium is the lightest structural metal and magnesium alloys are therefore obvious candidates in weight critical applications. The environmental imperative to reduce vehicle emissions has recently led to intensified research interest in magnesium, since weight reduction is one of the most effective ways of improving fuel efficiency. The hexagonal close-packed structure of magnesium results in poor room temperature formability. However, on heating, several magnesium alloys show superplastic properties, with the ability to deform to very high strains (up to 3000%). This opens up the possibili

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