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Dissertations / Theses on the topic 'Aluminium Alloys - Mechanical Properties'

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Published: 4 June 2021

Last updated: 6 September 2023

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1

Seifeddine, Salem. "Characteristics of cast aluminium-silicon alloys : microstructures and mechanical properties /." Linköping : Univ, 2006. http://www.bibl.liu.se/liupubl/disp/disp2006/tek1058s.pdf.

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2

El-Sayed, Mahmoud Ahmed Mahmoud. "Double oxide film defects and mechanical properties in aluminium alloys." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3924/.

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Double oxide films (bifilms) are significant defects in light alloy castings which were reported to have detrimental effects on the reliability of the castings. The research reported here was aimed at studying how these defects develop with time. The results suggested that both O and N inside the bifilm would be consumed by reaction with the surrounding melt, and that H might be diffused into the defect. Based on the estimated reactions rates the time required for the consumption of the atmosphere inside a bifilm entrained in pure Al, Al-7wt.%Si-0.3wt.%Mg and Al-5wt.%Mg alloy melts, was determ

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3

Kerry, S. "Microstructure and mechanical properties of high strength cast aluminium alloys." Thesis, University of Bath, 1987. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376328.

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4

O'Rourke, Jane. "Microstructure and mechanical properties of fibre-reinforced heat-treatable aluminium alloys." Thesis, University of Bath, 1995. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261348.

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5

Payandeh, Mostafa. "Rheocasting of Aluminium Alloys : Slurry Formation, Microstructure, and Properties." Licentiate thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH. Forskningsmiljö Material och tillverkning – Gjutning, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-26297.

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Innovative materials with novel properties are in great demand for use in the criticalcomponents of emerging technologies, which promise to be more cost-effective and energyefficient.A controversial issue with regard to manufacturing complex industrial products isto develop advanced materials with optimised manufacturability in addition to the requiredmechanical and physical properties. The objective of this research study was to develop andoffer new solutions in material-processing-related issues in the field of mechanical andelectrical engineering. This was achieved by investigating the new

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6

Sawalha, Kameel. "The fatigue properties of pressure diecast zinc-aluminium based alloys." Thesis, Aston University, 1991. http://publications.aston.ac.uk/11933/.

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The fatigue behaviour of the cold chamber pressure-die-cast alloys: Mazak3, ZA8, ZA27, M3K, ZA8K, ZA27K, K1, K2 and K3 was investigated at temperature of 20oC. The alloys M3K, ZA8K and ZA27K were also examined at temperatures of 50 and 100oC. The ratio between fatigue strength and tensile strength was established at 20oC at 107 cycles. The fatigue life prediction of the alloys M3K, ZA8K and ZA27K was formulated at 20, 50 and 100oC. The prediction formulae were found to be reasonably accurate. All of the experimental alloys were heterogeneous and contained large but varying amounts of pores. Th

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7

Mir, Arshad A. "The creep properties of a series of zinc-rich zinc-aluminium alloys." Thesis, Aston University, 1998. http://publications.aston.ac.uk/13277/.

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The compressive creep behaviour of six sand cast zinc-rich alloys: No3 and No5, corresponding to BS 1004A and BS 1004B, respectively, alloy No2, ILZRO,.16 and two newer alloys ACuZinc5 and ACuZinc10 was investigated. The total creep contraction of the alloys was found to be well correlated using an empirical equation. On the basis of this equation, a parametrical relationship was derived which allowed the total creep contraction to be related to the applied stress, the temperature and the time of test, so that a quantitative assessment of compressive creep of the alloys could be made under dif

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8

Stein, Julien. "AA5083 aluminium alloys reinforced with multi-walled carbon nanotubes : microstructure and mechanical properties." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20002.

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Cette étude a pour but de développer de nouveaux matériaux composites à matrice métallique renforcés par des nanotubes de carbone (CNT) et présentant des propriétés mécaniques améliorées. La majeure partie de ce travail a été réalisée en utilisant des CNT multi-feuillets synthétisés par déposition chimique en phase vapeur en tant que renforts et un alliage d'aluminium AA5083 comme matrice. Des composites CNT/AA5083 denses et homogènes ont été élaborés par le procédé de métallurgie des poudres suivi par une étape de mise en forme, l'extrusion. L'homogénéité de la dispersion des CNT à l'échelle

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9

Zander, Johan. "Modelling mechanical properties by analysing datasets of commercial alloys." Licentiate thesis, Stockholm : Industriell teknik och management, Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4527.

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10

Hashemi-Ahmady, M. "Solidification, structure and mechanical properties of A357 aluminium alloy." Thesis, University of Southampton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381127.

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11

Zhu, Baiwei. "On the influence of Si on anodising and mechanical properties of cast aluminium alloys." Licentiate thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Material och tillverkning, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-35096.

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The combination of two cost-effective processes, i.e. casting and anodising, would be an interest for the aluminium component applications. However, there are some obstacles in the application of anodising on cast Al alloys. The challenges mostly relate to the alloying elements especially Si and the surface quality. With the development of casting process, cast aluminium alloys with low Si content can be casted, and a complex geometry component with reasonably good surface finish can be achieved. This study aims to identify the influence of Si on anodising and mechanical properties of Al-Si al

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12

Syahril. "Effect of ternary additions and thermomechanical treatments on the properties of Fe-11wt% Al alloys." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325578.

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13

Matulich, Ryan Douglas. "Post-fire Mechanical Properties of Aluminum Alloys and Aluminum Welds." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/32727.

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The focus of this research was to quantify the post-fire mechanical properties of 5083-H116 and 6082-T6 aluminum alloys. Post-fire exposure is considered heating the material to a particular temperature then cooling the material back to room temperature. The research included evaluating parent materials as well as welded samples. Post-fire mechanical properties of parent materials were evaluated at temperatures ranging from ambient to 500oC with isothermal and transient heating. Changes in material properties were evaluated through static tensile tests and hardness testing on cooled samples.

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14

Sun, Ning. "Friction stir processing of aluminum alloys." Worcester, Mass. : Worcester Polytechnic Institute, 2009. http://www.wpi.edu/Pubs/ETD/Available/etd-050109-144331/.

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15

Watson, Douglas. "Microstructure and mechanical properties of ductile die-cast Al-Mg-Si-Mn alloys." Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/12874.

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Aluminium alloys have been seen a dramatic increase in transport manufacturing in past two decades. This is primarily driven by the achievement of effective weight-savings, increased vehicle fuel efficiency and reduced CO2 emissions in transport. One of the significant progresses in most recent years has been in the application of aluminium-intensive car body structure, in which the manufacturing of thin wall castings with improved ductility is one of the critical issues. High pressure die casting (HPDC) is a fast and economical near-net shape manufacturing method to produce thin wall componen

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16

Zander, Johan. "Development of tools for integrated optimisation and use of aluminium alloys." Doctoral thesis, KTH, Materialteknologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37609.

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Commercial alloys are continuously developed to improve their performance. Therefore it is useful to establish new optimisation software, which could be used in development of new materials or in materials selection. In the first part of the thesis, mechanical and technological properties, which are of importance in materials selection in mechanical design, are investigated. Two types of materials are analysed for the mechanical properties, aluminium alloys and stainless steels but only aluminium alloys for the technological properties. Thermodynamic analysis has been used to evaluate the effe

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17

Dighe, Manish D. "Quantitative characterization of damage evolution in an Al-Si-Mg base cast alloy." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/20219.

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18

SIQUEIRA, GONÇALO. "Caracterização microestrutural, mecânica e tratamento térmico da liga AA-6082 obtida pelo processo de conformação por spray." reponame:Repositório Institucional do IPEN, 2010. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10151.

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19

Haddleton, Frank L. "The properties of advanced aluminium alloy systems." Thesis, Aston University, 1987. http://publications.aston.ac.uk/11896/.

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2XXX and 7XXX series aluminium alloys have been the accepted materials for airframe construction for many decades. However, only minor improvements in properties have been possible by the development of these alloys since the early 1970's. The constant need to reduce weight in aircraft has therefore led to a resurgence in the research for higher performance aluminium alloys. The reason for this investigation was to evaluate possible alternatives for the existing conventional aluminium alloy 2014 for aircraft wheel applications. Three new technologies in alloy development were considered: a met

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20

Eksi, Murat. "Optimization Of Mechanical And Microstructural Properties Of Weld Joints Between Aluminium-magnesium And Aluminium-magnesium-silicon Alloys With Different Thicknesses." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615649/index.pdf.

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For the last decades usage of aluminium alloys have been increasing tremendously. They have been used in aerospace industry widely and now aluminium alloys are becoming more and more popular in automotive and defense industries. Consequently<br>successful welding of aluminium alloys gains importance. In this study a research is carried out on eldability of plates having different thicknesses of composition 5754 aluminium and 6063 aluminium in T-fillet geometry using Gas-metal Arc Welding technique. It was aimed to have a successful joint without using pre-weld and post-weld heat treatments. Du

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21

Graziani, Alessandro. "Chemical composition modification of casting aluminium alloys for engine applications." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10018/.

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The research activities were focused on evaluating the effect of Mo addition to mechanical properties and microstructure of A354 aluminium casting alloy. Samples, with increasing amount of Mo, were produced and heat treated. After heat treatment and exposition to high temperatures samples underwent microstructural and chemical analyses, hardness and tensile tests. The collected data led to the optimization of both casting parameters, for obtaining a homogeneous Mo distribution in the alloy, and heat treatment parameters, allowing the formation of Mo based strengthening precipitates stable at h

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22

McMahon, Martin Andrew. "The microstructure and corrosion properties of laser processed aluminium alloys." Thesis, University of Liverpool, 1994. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284591.

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23

Eaton, James Allen. "Effect of temperature and percent cold work on the mechanical properties of aluminum alloy 3104." Master's thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-03302010-020243/.

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24

Morgan, David Scott. "A microstructural and mechanical analysis of perforation of aluminum alloys." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/16361.

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25

Warren, Paul J. "A study of the relationship between precipitate structure and chemistry on the mechanical properties of aluminium alloys." Thesis, University of Oxford, 1993. http://ora.ox.ac.uk/objects/uuid:8259f666-f634-4127-b376-6fba8fffba28.

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The microstructural chemistry of the commercial aluminium alloy 7150, containing Al, Zn, Mg, Cu and some trace impurities, was investigated in detail. This alloy is a precipitation hardening alloy, deriving most of its strength from the fine distribution of solute rich precipitates formed during thermal processing. At peak strength this alloy suffers from the common problem of stress corrosion cracking, leading to unpredictable premature failure in the presence of a corrosive environment. Failure is mainly intergranular, thus the structure and chemistry of the grain boundary regions is of inte

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26

Anwar, Muhammad. "The compressive creep and load relaxation properties of a series of high aluminium zinc-based alloys." Thesis, Aston University, 1997. http://publications.aston.ac.uk/13271/.

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A new family of commercial zinc alloys designated as ZA8, ZA12, and ZA27 and high damping capacity alloys including Cosmal and Supercosmal and aluminium alloy LM25 were investigated for compressive creep and load relaxation behaviour under a series of temperatures and stresses. A compressive creep machine was designed to test the sand cast hollow cylindrical test specimens of these alloys. For each compressive creep experiment the variation of creep strain was presented in the form of graphs plotted as percentage of creep strain () versus time in seconds (s). In all cases, the curves showed th

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27

Paray, Florence. "Heat treatment and mechanical properties of aluminum-silicon modified alloys." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41146.

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The commercial applications of cast Al-Si alloys depend to an important extent on controlling the morphology of the eutectic silicon through thermal modification in the solid state and/or chemical modification of the melt before the production of the casting. The effects of modification and/or heat treatment on the microstructure and the mechanical properties of 356 alloy have been investigated on both permanent mold and sand cast samples. Strontium (0.02%) and sodium (0.01%) were used to produce well modified microstructures. The importance of the amount of modifier used was also examined in

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28

COUTO, ANTONIO A. "Influencia do teor de cromo e de tratamentos termicos na microestrutura e no comportamento mecanico de ligas intermetalicas ordenadas a base de Fesub3 Al." reponame:Repositório Institucional do IPEN, 1998. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10701.

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29

Tu, Zhiqiang. "Fabrication and Mechanical Properties of Carbon Fiber Reinforced Aluminum Matrix Composites by Squeeze Casting." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40523.

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Rapid modern technological changes and improvements bring great motivations in advanced material designs and fabrications. In this context, metal matrix composites, as an emerging material category, have undergone great developments over the past 50 years. Their primary applications, such as automotive, aerospace and military industries, require materials with increasingly strict specifications, especially high stiffness, lightweight and superior strength. For these advanced applications, carbon fiber reinforced aluminum matrix composites have proven their enormous potential where outstanding

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30

Agarwal, Himanshu. "Effect of loading condition, stress state and strain on three-dimensional damage evolution in 6061 wrought Al-alloy." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/14798.

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31

Siaminwe, Levy. "Optimisation of the mechanical properties in an investment cast aluminium alloy." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/26147.

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The thesis reports an experimental investigation concerned with the optimisation of mechanical properties in investment cast LM25 aluminium alloy. The effects of melt hydrogen content, filter usage, grain refinement, eutectic silicon modification, heat treatment, pouring and shell preheat temperatures on the structure and tensile properties of LM25 investment cast tensile test specimens were studied. Four series of experiments were conducted to assess the effects of the parameters studied on the structure and tensile properties. The first series established the effect of melt hydrogen content,

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32

Aboulkhair, Nesma T. "Additive manufacture of an aluminium alloy : processing, microstructure, and mechanical properties." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/31152/.

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Additive manufacturing of aluminium alloys using selective laser melting (SLM) is of research interest nowadays because of its potential benefits in industry sectors such as aerospace and automotive. However, in order to demonstrate the credibility of aluminium SLM for industrial needs, a comprehensive understanding of the interrelation between the process parameters, produced microstructure, and mechanical behaviour is still needed. This thesis aims at contributing to developing this comprehensive understanding through studying the various aspects of the process, with investigation of the pow

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33

Yue, T. M. "The microstructure and mechanical properties of squeeze cast aluminium alloy 7010." Thesis, University of Southampton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277565.

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34

Hameed, Asad. "Microstructural characterisation and mechanical properties of an extruded nanoquasicrystalline aluminium alloy." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:827c5108-4e51-4f24-a2f5-b882eaa795f2.

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Conventional aluminium alloys rapidly lose mechanical strength above 150°C, limiting their elevated temperature usage in engineering applications. The rapidly solidified (RS) nanoquasicrystalline (NQX) Al<sub>93</sub>Fe<sub>3</sub>Cr<sub>2</sub>Ti<sub>2</sub> alloy has the potential to be used at elevated temperatures (250-350°C) as it retains high strength at those temperatures. There have been some microstructural studies and limited work on the mechanical properties of the alloy. However, a detailed study of both the microstructure and the mechanical properties (elastic constants, tensile b

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35

Bond, Trevor. "Microstructure and Mechanical Properties of Cold Sprayed Aluminum and Titanium Alloys." Digital WPI, 2019. https://digitalcommons.wpi.edu/etd-theses/1336.

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A combination of experimental and computational methods is used to explore the microstructure and mechanical behavior of cold sprayed 6061 aluminum alloy and Ti-6Al-4V alloy and their substrate materials. A variety of microscopic methods are used for characterization of the microstructure. The indentation size effect and characteristic length of strain gradient plasticity for the substrate materials are determined. An FEA simulation describes the behavior of a worn Berkovich nanoindenter. Stress strain is studied experimentally in the substrate materials for future comparison with bulk cold-sp

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36

Giles, Tanya L. "The effect of friction stir processing on the microstructure and mechanical properties of AF/C458 aluminum lithium alloy." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Sep%5FGiles.pdf.

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37

Gharghouri, Michael. "Study of the mechanical properties of Mg-8.5wt%Al by in-situ neutron diffraction /." *McMaster only, 1996.

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38

Fuller, Christian B. "Temporal evolution of the microstructures of Al(Sc, Zr) alloys and their influence on mechanical properties." Full text available, 2003. http://images.lib.monash.edu.au/ts/theses/fuller.pdf.

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39

SILVA, LUCIANA V. da. "Estudos dos mecanismos envolvidos em processos de endurecimento superficial a laser de ligas a base de aluminio." reponame:Repositório Institucional do IPEN, 2011. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9634.

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40

Nittala, Aditya Kameshwara. "Electrical and Mechanical Performance of Aluminum Alloys with Graphite Nanoparticles." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1554117521295178.

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41

Sun, Ning. "Friction Stir Processing of Aluminum Alloys." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-dissertations/552.

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Friction stir processing (FSP) has been developed based on the basic principles of friction stir welding (FSW), a solid-state joining process originally developed for aluminum alloys. What is attractive about FSP is that it can be incorporated in the overall manufacturing cycle as a post-processing step during the machining operation to provide localized modification and control of microstructures in near-surface layers of metallic components. FSP has emerged as an important post-processing technique, and has been identified as a process that may have a high impact, and perhaps is a disruptive

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42

Riddle, Yancy Willard. "Al₃(Sc₁₋x, Zrx) dispersoids in aluminum alloys : coarsening and recrystallization control." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/20139.

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43

Jeřábek, Petr. "Vliv parametrů odplyňování na kvalitu Al odlitků." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382188.

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This master’s thesis is focused on optimalization of degassing parameters in the foundry plant and effect of these parameters on mechanical properties of Al-Si alloys. In practical part is used factorial experiment to research effect of degassing parameters on mechanical properties and dichte index. After optimalization the new process is validated by comparing with the previous one. This experiment was taken on AlSi7Mg0,6 alloy in foundry plant MESIT foundry, a.s.

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44

Lamb, Justin. "Decomposition and its effects on mechanical properties in Al-Zn-Mg-Cu alloys." Diss., Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/54931.

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The effects of variations in composition on the decomposition process in Al-Zn-Mg-Cu alloys (i.e. – 7xxx-series aluminum alloy) were studied emphasizing their effect on mechanical properties. Several experimental quaternary alloys were studied to compare their behavior with commercial 7xxx-series alloys. The investigation included studies on the effects of natural aging, artificial aging, quench sensitivity, precipitate free zone formation, and homogenization. Additionally, “true aging” curves (i.e. – hardness/strength vs. conductivity) were presented in order to visualize and quantify the

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45

COELHO, RODRIGO E. "Obtencao das ligas Al-Fe-X-Si (X = V ou Nb) por moagem de alta energia e extrusao a quente." reponame:Repositório Institucional do IPEN, 2001. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10870.

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Hwang, Junyeon Kaufman M. J. "Characterization and mechanical properties of nanoscale precipitates in modified Al-Si-Cu alloys using transmission electron microscopy and 3D atom probe tomography." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-3661.

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47

PAOLA, JEAN C. C. de. "Efeito de tratamentos termicos e da adicao de cromo nas propriedades mecanicas de ligas Fe-24 atAl." reponame:Repositório Institucional do IPEN, 1998. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10664.

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48

Williams, Robert A. "A microstructural and mechanical property correlation of friction stir processed nickel aluminum bronze." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Sep%5FWilliams%5FR.pdf.

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49

Crepeau, Paul Noles. "The effect of processing and microstructure on the mechanical properties of aluminum alloy 339-T5." Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/20193.

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50

Letovanec, Juraj. "Vliv teplotního režimu vytvrzování slitin typu Al-Si na mechanické vlastnosti." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-387729.

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The aim of this thesis is influence of precipitation hardening regime, specifically quench rate, on mechanical properties of aluminium alloy A356 (AlSi7Mg0.3). Samples were after solution treatment quenched into water with different temperatures and age hardened. Tensile strength tests, hardness tests and microstructure observations were done after heat tretment.

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