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Dissertations / Theses on the topic 'Graphite. Iron'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Westphal, Mark Emil. "Fracture toughness of coral graphite cast iron." Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/16892.

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2

Hellström, Kristina. "Density variations during solidification of lamellar graphite iron." Licentiate thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Material och tillverkning, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-37869.

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3

Franklin, Steven E. "A study of graphite morphology control in cast iron." Thesis, Loughborough University, 1986. https://dspace.lboro.ac.uk/2134/32998.

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The objectives of the research project were to gain a deeper understanding of the factors influencing the graphite morphology in cast iron; particularly the role of different solute elements in relation to the industrial manufacture of compacted graphite iron. A number of melt treatment processes were assessed for their abilities to produce low nodularity compacted graphite microstructures over a range of casting section thicknesses. In this respect, the magnesium-titanium method was found to be superior to treatment using cerium Mischmetall and calcium additives; and very promising results we

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4

Castillo-Bozzo, Ricardo N. "A fracture mechanics study of flake graphite cast iron." Thesis, Imperial College London, 1985. http://hdl.handle.net/10044/1/37651.

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5

Alkan, Anil. "Production And Assesment Of Compacted Graphite Iron Diesel Engine Blocks." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613874/index.pdf.

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In Diesel engine blocks properties such as tensile strength, heat conductivity, sound damping, engine vibration and noise are strongly influenced by graphite shape and volume percent in the matrix microstructure. In this study, the engine blocks were produced at ELBA Basin&ccedil<br>li D&ouml<br>k&uuml<br>m Od&ouml<br>ksan Cast iron foundry in Osmaneli Turkey by performing casting into furan resin sand and preparing cast iron liquid alloy in induction furnace that were treated with Mg by using ladle method. The main purpose of this study is to achive 0 &ndash<br>25% volume nodularity and remai

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6

Berhane, Mulugeta. "Optimization of cutting parameters in machining of Compacted Graphite Iron (CGI)." Thesis, KTH, Industriell produktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-41280.

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Compacted Graphite Iron offers mechanical properties in between of gray cast iron and ductile iron. Thus,the material is seen as a hopeful alternative for engine cylinder blocks and heads satisfying environmentaland performance objectives. Nevertheless, CGI is more difficult to machine than conventional gray castiron due to the presence of MnS and thin wall section of probing high strength. This problem of CGI thenled to the initiation of large Optima Sweden project to study machinability and optimization of related toCGI.The thesis is centered on a study of tool life, cutting force and MRR wi

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7

Siafakas, Dimitrios. "Investigation of Hydrogen and Nitrogen Content in Compacted Graphite Iron Production." Thesis, KTH, Materialvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-119086.

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The aim of this research, part of a wider program called SPOFIC, is to investigate how the casting procedure affects the concentration of hydrogen and nitrogen gases in Compacted Graphite Iron used for the production of truck cylinder blocks. Hydris equipment was used for the Hydrogen measurements and the Optical Emission Spectroscopy and combustion analysis methods were used for the nitrogen measurements. The experiment was performed in one of the cooperating foundries. It was found that Hydrogen content is increased during pouring of the melt into the mold but nitrogen content does not seem

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8

Zhu, Yaoxuan, and Xiaoting Huang. "IMPROVEMENT OF COMPACTED GRAPHITE IRON DRILLING OPERATIONS WITH CUSTOMIZED CUTTING FLUID." Thesis, KTH, Industriell produktion, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226315.

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With its higher strength, Compacted Graphite Iron (CGI) is widely used in automotive industry. However, the machinability of CGI is challenging, mostly due to the high temperature in the cutting zone and the higher cutting force. This paper studies the influence of the different cutting fluids on the machinability of CGI material in drilling operations. The investigation compared a few customized cutting fluids having alkaline phase and oil phase, to a conventional cutting fluid. The oil phase of customized cutting fluid can help reduce the friction force in the machining process. The flank we

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9

Domeij, Björn. "On the solidification of compacted and spheroidal graphite irons." Licentiate thesis, Jönköping University, JTH, Material och tillverkning, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-35533.

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A good understanding of the solidification process of a cast material is essential to understand how the combination of alloy composition and the casting process variables combines into the solid cast component and its performance. The wrong combination may result in poor performance or casting defects. Spheroidal graphite has been well researched in ductile irons (SGI) where it is predominant. Spheroidal graphite is also present in smaller amounts in compacted graphite irons (CGI), but its nature and role in this material is less understood. Recent associations of spheroidal graphite in CGI w

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10

Ye, Jianchang. "Roles of graphite in the reduction of azo-aromatic compounds with elemental iron." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 137 p, 2006. http://proquest.umi.com/pqdweb?did=1172118261&sid=5&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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11

König, Mathias. "Microstructure Formation During Solidification and Solid State Transformation in Compacted Graphite Iron." Doctoral thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH. Forskningsmiljö Material och tillverkning – Gjutning, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-15694.

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Compacted graphite iron (CGI) is rapidly becoming an attractive alternative material for engine components in the automotive industry, replacing lamellar graphite iron (LGI) in applications where high mechanical strength is desired. However, the gain in mechanical strength comes with a cost; thermal conductivity, process control and machining are three areas that are more challenging for CGI. This generates a need for research regarding various aspects concerning CGI. In this thesis the microstructure formation during solidification and solid state transformation will be the focus of interest.

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12

Bobyliov, Konstantin. "Casting voids influence on spheroid graphite cast iron high-cycle fatigue strength." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20081128_120950-42235.

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The influence of casting voids on spheroid cast iron cracking threshold is investigated. The experimental results and their analytical and numerical analysis basing on linear fracture mechanics is presented.<br>Nagrinėjamas liejimo tuštumų poveikis stipriojo ketaus pleišėjimo slenksčiui. Pateikiami eksperimentiniai rezultatai ir jų analitinė bei skaitinė analizė, remiantis tiesine irimo mechanika.<br>Исследуется влияние литейных пустот на порог трещиностойкости чугуна с шаровидным графитом. Представлены результаты экспериментального исследования и их аналитический и численный анализ, опираясь

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13

Jonker-Brash, Robina Ann. "Erosion of refractories : mechanisms for dissolution of graphite by iron-carbon melts." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297215.

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14

Velichko, Alexandra. "Quantitative 3D characterization of graphite morphologiesin cast iron using FIB microstructure tomography." Aachen Shaker, 2008. http://d-nb.info/992480035/04.

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15

HASSAN, INAMUL. "Effects of Austempering Process on Mechanical Behavior Properties of Compacted Graphite Iron." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Material och tillverkning, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-45645.

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The thesis paper here focuses on the effects of the austempering temperature (TA) and the austempering time (tA) on the unalloyed fully ferrite Compacted Graphite Iron (CGI), to obtain improve in mechanical properties and the study of the microstructure. The unalloyed CGI samples were austenitised at 850oC for 60 and 90 min and were then heat treated at 275, 325 and 375oC with different holding times at 30,60,90, and 120 mins. Mechanical properties like the tensile strength, yield strength, young’s modulus, Brinell and Vickers harness were conducted to perform the analysis on the samples. LOM

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16

Hernando, Juan Carlos. "Morphological characterization of primary austenite in cast iron." Licentiate thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Material och tillverkning, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-35585.

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Automotive industry products portfolio includes a wide variety of complex‐shaped cast iron products, such as truck engine components, that need to withstand a constant trend of higher demands, especially urged by stricter environmental regulations on emissions. Combined with this continued demand on properties improvement, cast iron industry faces a process problem related to the lack of understanding of solidification and mechanisms behind defect formation. Casting products are highly affected by the product design and the manufacturing method itself, which governs the final microstructure an

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17

Boonmee, Sarum. "Ductile and Compacted Graphite Iron Casting Skin - Evaluation, Effect on Fatigue Strength and Elimination." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1364310320.

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18

Yeliyur, Siddegowda Darshan. "Gray-cast iron classification based on graphite flakes using image morphology and neural networks." Thesis, California State University, Long Beach, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10017846.

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<p> Gray-cast iron is an iron carbon alloy which is regularly used in manufacturing processes. Carbon is distributed in the iron material in the form of graphite. The distribution of the graphite flakes in the alloy contributes greatly towards the chemical and physical properties of the metal alloy. Thus it is important to identify and classify the Gray-cast iron based on the morphological parameters of the graphite flakes. Gray-Cast iron is classified into five types in ISO-945 represented with the letters A through E. These five classes possess different structures or distributions of the g

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19

Boutorabi, S. M. A. "The austempering kinetics, microstructure and mechanical properties of spheroidal graphite unalloyed aluminium cast iron." Thesis, University of Birmingham, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520795.

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The effect of austempering processing variables on the transformation kinetics, microstructure and mechanical properties of the Fe-C-AI family of spheroidal graphite cast irons, in which the silicon is below 0.2wt% has been investigated. These alloys are described as SO Al cast irons. In the preliminary experiments the spheroidisation and inoculation treatments for SO Al were developed and the microstructure and tensile properties in the as cast and normalised SO Al cast iron at 2.2 and 3.2% of Al examined. The results show that the sequence of spheroidisation of SO Al iron differs significant

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20

Velichko, Alexandra [Verfasser]. "Quantitative 3D Characterization of Graphite Morphologies in Cast Iron using FIB Microstructure Tomography / Alexandra Velichko." Aachen : Shaker, 2009. http://d-nb.info/1161310541/34.

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21

Smart, Neil G. "The electrochemical and analytical determination of austenitic spheroidal graphite iron (NiResist) and stainless steel corrosion mechanisms." Thesis, Glasgow Caledonian University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.688230.

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22

Joly, Damien. "Usinabilité de la fonte à graphite vermiculaire." Thesis, Tours, 2010. http://www.theses.fr/2010TOUR4042/document.

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L’étude présentée est consacrée à l’usinabilité de la fonte à graphite vermiculaire. Celle-ci se situe entre la fonte à graphite lamellaire et la fonte à graphite sphéroïdale par rapport à la forme du graphite constituant ce matériau. Elle est utilisée depuis plus de cinq ans dans les blocs moteurs diesel afin d’améliorer les performances et de diminuer les rejets atmosphériques pour respecter les nouvelles normes Européennes. Pour évaluer l’usinabilité d’un matériau, il faut s’étalonner par rapport à un matériau de référence. Dans notre cas, la fonte à graphite vermiculaire a été comparée à l

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23

Bourdie, Jacques. "Sphéroïdisation du graphite - Cas de la fonte centrifugée." Thesis, Toulouse, INPT, 2017. http://www.theses.fr/2017INPT0117/document.

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Les fontes de fer sont des matériaux largement utilisés dans de nombreux domaines allant de l’industrie automobile au secteur de l’énergie en passant par la fabrication des tuyaux d’adduction d’eau. Du fait de la teneur en carbone élevée de ces alliages, du graphite et/ou des carbures de fer précipitent pendant la solidification. Les propriétés finales des pièces dépendent alors de la nature de la matrice, de la présence ou non de carbures et surtout de la forme du graphite. Celui-ci peut cristalliser sous la forme de lamelles, de sphères ou de particules de formes intermédiaires. Les éléments

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24

Dong, Ming-Jing. "Effet de l'endommagement sur la ténacité de la fonte à graphite sphéroïdal." Châtenay-Malabry, Ecole centrale de Paris, 1995. http://www.theses.fr/1995ECAP0392.

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Cette étude porte sur l'influence de l'endommagement sur la loi de comportement et sur la ténacité de la fonte a graphite sphéroïdal. La microstructure des fontes GGG 40, GS 52 5%, GS 52 25%, a été caractérisée par analyse à la microsonde, observation au MEB, et analyse d'images. L’endommagement est décrit d'une part à l'échelle macroscopique par les paramètres D, le coefficient de dilatance et l'évolution du coefficient de poisson plastique, et d'autre part a l'échelle microscopique par observation au MEB des différents stades de la décohésion de l'interface graphite/matrice. Nous trouvons qu

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25

Paul, Michael. "The catalytic effect of vanadium, iron and lead on the air oxidation of pile grade A graphite." Thesis, University of Bristol, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385529.

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26

Ghasemi, Rohollah. "Tribological and Mechanical Behaviour of Lamellar and Compacted Graphite Irons in Engine Applications." 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-25724.

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There has been much discussion about the beneficial uses of lamellar graphite iron in piston rings–cylinder liner systems, where a good combinations of both thermal and tribological properties are essential. The excellent tribological performance of lamellar iron under such sliding conditions is principally associated with lubrication behaviour of the graphite particles which are distributed as lamellas throughout the matrix. During sliding, graphite particles are extruded and smeared onto the counterfaces, act as solid lubricating agents and form a thin graphite film between the sliding surfa

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27

Souza, José Vitor Cândido de. "Desenvolvimento de pastilhas cerâmicas à bases de Si3N4 para aplicações tribológicas /." Guaratinguetá : [s.n.], 2005. http://hdl.handle.net/11449/105366.

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Resumo: Nesse trabalho foram desenvolvidas três composições à base de Si3N4 com quantidades e tipos de aditivos diferentes, com objetivos de desenvolver cerâmicas densas de altas resistências, para posteriores testes como ferramentas de corte na usinagem de torneamento do ferro fundido cinzento, ferro fundido vermicular e a liga Ti-6Al-4V. As composições utilizaram aditivos Y2O3/Al2O3 (10%) e AlN/Y2O3 (15 e 20%), e foram sinterizadas pelo processo de sinterização normal. Em seguida foram caracterizadas quanto as propriedades físicas e mecânicas, apresentando bons resultados. Posteriormente a c

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28

From, Erik. "Influence of matrix and alloying on the high cycle fatigue properties of compacted graphite iron for cylinder heads." Thesis, KTH, Hållfasthetslära, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277782.

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Continued improvements in combustion processes, introduction of biofuels, decreasing fuel consumption and increasing specific power will inevitably lead to an increase of the combustion pressure, which can be accompanied with a temperature increase. This will increase the loading on many components and drives the development of materials more resistant to the harsh conditions close to the engine. The cylinder head is one of the components that will be affected by the increased loads. Therefore, thermomechancial loads (TMF) originating from the cyclic temperature variations from the heating up

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29

Berglund, Anders. "Criteria for Machinability Evaluation of Compacted Graphite Iron Materials : Design and Production Planning Perspective on Cylinder Block Manufacturing." Doctoral thesis, KTH, Industriell produktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-48430.

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The Swedish truck industry is looking for new material solutions to achieve lighter engines with increased strength to meet customer demands and to fulfil the new regulations for more environmentally friendly trucks. This could be achieved by increasing the peak pressure in the cylinders. Consequently, a more efficient combustion is obtained and the exhaust lowered. This, however, exposes the engine to higher loads and material physical properties must therefore be enhanced. One material that could meet these demands is Compacted Graphite Iron (CGI). Its mechanical and physical properties make

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30

Sjögren, Torsten. "Influences of the Graphite Phase on Elastic and Plastic Deformation Behaviour of Cast Irons." Doctoral thesis, Linköpings universitet, Konstruktionsmaterial, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8776.

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The amount and morphology of the graphite phase largely controls the resulting properties of cast iron. For instance, in flake graphite cast irons the mechanical properties are low while the thermal conductivity is high. This is in contrast with spheroidal graphite cast irons where the mechanical properties are high and the thermal conductivity is low. These differences are due to the different graphite morphologies and must be accounted for in the design work and material selection of cast iron components. In this work the influence of the graphite phase on the elastic and plastic deformation

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31

Zweigel, Catarina. "Validering av metoder för analys av Cu, Fe och Na i processvatten med AAS-grafitugn." Thesis, Department of Physics, Chemistry and Biology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-20631.

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<p>Södra Cell Mörrum is one of the five paper pulp plants that are included in Södra Cell, and the paper pulp that is produced here is not only sold to Swedish paper mills. Most of the paper pulp is exported to different countries in Europe. In the manufacturing process the plant needs different kind of process water and there are guideline values for how much copper, iron and sodium this water is allowed to contain. Analyzes of this water is in the current situation done with an atomic absorption spectrometric instrument (AAS-instrument) with a flame.</p><p> </p><p>Measurements done with flam

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32

Elmabrouk, Omar Mustafa. "An Investigation Of Compacted Graphite Cast Iron Production By Means Of Thermal Analysis Technique And Other Process Control Windows." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/3/12608096/index.pdf.

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ABSTRACT AN INVESTIGATION OF COMPACTED GRAPHITE IRON PRODUCTION BY MEANS OF THERMAL ANALYSIS TECHNIQUE AND OTHER PROCESS CONTROL WINDOWS El-mabrouk, Omar PhD, Metallurgical and Material Engineering Department Supervisor: Prof. Dr. Ali Kalkanli January 2007, 123 pages Compacted graphite irons have been proved valuable in many applications such as exhaust manifolds, hydraulic valves, and diesel engine blocks, the process of producing compacted graphite irons is not a straight forward process because of its narrow processing windows and its high sensitivity to the section thickness, treatm

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33

Gonzalez, Leny. "Infuence of matrix and alloying on the fatigue crack propagation and fracture toughness of compacted graphite iron for cylinderheads." Thesis, Linköpings universitet, Konstruktionsmaterial, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-170829.

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The constants modernization in the fuels used request improvements in the combustioneffectiveness, as a consequence the material for components as the cylinder heads mustenhance their properties. Seven different compositions of compacted graphite iron (CGI)are analysed with the aim of characterized and select the most suitable material for thecylinder head service condition. The present master thesis report focuses on the impactof the matrix- either pearlitic or ferritic- and alloying elements such as molybdenum andnickel in the fatigue crack propagation ratedadNand fracture toughness (kIc).Te

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34

Cox, G. J. "The effect of composition and heat-treatment on the mechanical properties and micro structure of spheroidal-graphite cast iron." Thesis, Aston University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.484343.

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35

Ram, Gokul, and Vishnu Harikrishnan. "INFLUENCE OF CARBON CONTENT AND COOLING CONDITIONS ON THE THERMAL CONDUCTIVITY AND TENSILE STRENGTH OF HIGH SILICON LAMELLAR GRAPHITE IRON." Thesis, Tekniska Högskolan, JTH, Material och tillverkning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-51152.

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Much study has been carried out to determine the properties of Lamellar Graphite Iron (LGI) or grey iron and their relations to factors such as the cooling rate, the dendrite morphology, the pouring temperature, and so on. However, there hasn’t been much comprehensive study on the properties of LGI outside the generally used and accepted composition, with 1 to 3% Silicon. The scope of this study is to measure and evaluate the thermal conductivity and tensile strength of LGI, for a higher concentration of Si and different carbon contents. The concentration of Si aimed for was 4% but the concen

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36

Nandagopal, Palaniswamy Naidu. "Graphite pretreatment of ductile iron." 1986. http://catalog.hathitrust.org/api/volumes/oclc/14923412.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1986.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 62-65).

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37

Fonseca, Francisco Cabral Viana da. "Porosity Analysis on Compacted Graphite Iron." Dissertação, 2017. https://repositorio-aberto.up.pt/handle/10216/108008.

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38

Esho, Faris John. "Heat treatment of Compacted Graphite Iron." Thesis, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-41316.

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Fonseca, Francisco Cabral Viana da. "Porosity Analysis on Compacted Graphite Iron." Master's thesis, 2017. https://repositorio-aberto.up.pt/handle/10216/108008.

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40

Lo, Jen-Chieh, and 羅仁傑. "An Improved Synthesis Method for Graphite Encapsulated Iron Nanoparticles—Graphite Crucible Design." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/49242022696517140028.

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碩士<br>臺灣大學<br>地質科學研究所<br>98<br>Graphite encapsulated metal (GEM) nanopartcle is a composite material, with a core-shell structured and a particle size between 10 to 100 nm in diameter. By the protection of outer graphite shell, the inner metal core can survive in severe environments, such as oxidation and acid erosion. This material provides not only an excellent chance to study the properties and behaviors of nanoparticles and nano-sized graphite, but also many potential opportunities in industrial applications. In fuel cells, Co-GEM has been proven to be an effective hydrogen storage materia

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41

Babar, Rehman. "Develop Optimization Model for Spheroidal Graphite Iron." Thesis, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-50961.

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The main motivation behind this study is to develop a methodology to generate surrogate model coefficients for parametrized Spheroidal Graphite Iron (SGI) for thermal expansion and Young’s modulus response. To accomplish this objective, a 3D model was created by Abaqus, and Python was used for developing the script. The design of experiments (DoE) was utilized to compute two objectives parametrically. The inputs in this thesis were Poisson’s ratio, Young's modulus, radius, and volume fraction of Graphite, Ferrite, and Pearlite. Then DoE is integrated with Abaqus to get homogenized properties o

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42

Sun, Chi-Hung, and 孫啟宏. "A Study on Metal Mold Centrifugal Casting of Compacted Graphite Cast Iron and Compacted Graphite Cast Iron Based Composites with TiC." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/16789614195744638932.

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碩士<br>義守大學<br>材料科學與工程學系<br>89<br>Abstract The effect of process parameters, which include the amounts of spheroidizer (0.19~0.94wt%), the amount of inoculator (0.4~1.0wt%), the times gravity (70~110G), the pouring temperature (1350~1420℃),and the CE value (4.08~4.52%), on the microstructures and mechanical properties of centrifugally cast compacted graphite iron were studied. This data base were applied to develop compacted graphite iron based composite with concentration gradient distribution of TiC particles on the inner surface layer. Some process parameters will be investiga

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43

Lin, Hung-jie, and 林紘傑. "Evaluation of Trichloroethylene Degradation by Iron-coated Granular Graphite." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/60925909170576685464.

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碩士<br>逢甲大學<br>環境工程與科學學系<br>102<br>The purpose of this study is to evaluate the efficiency of trichloroethylene (TCE) degradation with a composite material, which was manufactured by coating iron on the surface of granular graphite. The coating of iron on the granular graphite was tested with two different methods: one by coating under high temperature and the other one by electrochemical plating. The results indicated electrochemical plating is more efficient than high temperature coating based on the amount of iron coasted per unit mass of graphite. 　　The structure of the composite material

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Tai, Huang Kuo, and 黃國泰. "The Study of Compacted Graphite Cast Iron Process Stability." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/44331479904180955780.

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碩士<br>國立臺灣師範大學<br>工業教育研究所<br>90<br>ABSTRACT This paper is mainly focusing on the study of the amount of the three kinds of spheroidizing, KC alloys、CG alloys、Rare earths that is needed to produce the compacted graphite cast iron, and on the study of the stability in the process of producing optical microscope observation and mechanical property under as identical condition as possible. Besides, this paper will do the comparison between the stability of the two base structures under two different speed of annealing. The results shows that the amount needed to produce the

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Javaid, Amjad. "Morphological features of spheroidal graphite in ductile cast iron." 1989. http://catalog.hathitrust.org/api/volumes/oclc/20078809.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1989.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 108-113).

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Hu, Chen-Yu, and 胡鎮宇. "Production of Graphite from Catalytic Liquid Cast Iron Bath." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/f987bp.

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碩士<br>國立清華大學<br>材料科學工程學系<br>106<br>Via the use of iron-carbon phase diagram and the theory of graphitization of carbon in cast irons, this study investigates an innovative method for continuously, effectively and efficiently, as well as environment-friendly producing graphite in a catalytic cast iron bath. It is concluded that the transformation from amorphous carbon to graphite via the method is available, and the degree of graphitization (DOG) described in this study reaches a high value of more than 93% like that of Acheson’s. Furthermore, the DOG is process-controlled and is independent of

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Wu, Kuo-Lung, and 吳國龍. "Study on Erosion Wear of Spheroidal Graphite Cast Iron Pipes." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/ktpbnu.

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碩士<br>國立臺北科技大學<br>材料及資源工程系所<br>94<br>Spheroidal graphite cast iron has been widely used in many structure fields of industry due to its superior mechanical properties. This research takes three kinds of commercial spheroidal graphite cast iron pipes, centrifugal casting pipe, centrifugal casting pipe with annealing treatment and sand casting fitting, which were to undergo solid erosion test using angular Al2O3 particles. The purpose of this research is to study the effect of erosion on spheroidal graphite cast iron pipes and fitting which possess various microstructures and mechanical properti

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Park, Junyoung. "Influence of lead on the morphology of graphite in gray iron." 2000. http://www.library.wisc.edu/databases/connect/dissertations.html.

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Lin, Guan-Yu, and 林冠宇. "A study on nitrocarburing of graphite cast iron with different pretreatment." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/8syv42.

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碩士<br>國立中興大學<br>材料科學與工程學系所<br>107<br>The purpose for the study was to assess the effects of different Nitriding Pretreatments on the nodular cast iron FCD550, including use the shot peening treatment or phosphate treatment. First of all, testing personnel choose the suitable nitrocarburing temperatures and using different sizes of the steel ball to shot peening (0.15mm, 0.25mm, and 0.8mm steel balls ) the surface of nodular cast iron FCD550 before the cast iron put into Nitriding Pretreatments. Then separately using zinc phosphate for 15 minutes, manganese phosphate for 15 minutes, manganese

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Tsai, Dran-Ren, and 蔡端任. "The Influence of Chromium on The Austempered Flake Graphite Cast Iron." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/p8rpj5.

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碩士<br>國立臺北科技大學<br>材料科學與工程研究所<br>97<br>The study was carried out to change austempering temperature (300℃~400℃), and the content of chromium (0.3~1.5wt%). The flake graphite cast iron were austenitized at 900℃ for 2 hours, and then quenched to the austempering temperature and holded the temperature for 2 hours. The study was to examine the influence of the austempering temperature and the percent of chromium on the mechanical properties and the microstructure of the austempered flake graphite cast iron. The result of the study showed that the matrix were composed of ferrite and block and a few

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