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Dissertations / Theses on the topic 'Cast iron microstructure'

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Published: 4 June 2021

Last updated: 26 July 2025

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1

Tang, Jiaming. "Impact of Gray Cast Iron Microstructure on Brake Pad Stiction." OpenSIUC, 2021. https://opensiuc.lib.siu.edu/theses/2886.

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This research study talks about the possible influence of gray cast iron microstructure on the corrosion properties of the brake rotor and the effect of stiction. Three Gray cast iron rotors with fully pearlitic microstructure and below 5% volume content of ferrite were studied in this research to understand their microstructural influence over corrosion. The selected gray cast iron rotors were friction tested against a 2009 Original Equipment Manufacturer (OEM) Ford F150 brake pad using scaled-down SAE J2522 standard test. Tested samples were later subjected to GMW16696 standard test, to iden

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2

Diószegi, Attila. "On microstructure formation and mechanical properties in grey cast iron /." Jönköping, 2004. http://www.bibl.liu.se/liupubl/disp/disp2004/tek871s.pdf.

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3

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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4

Maijer, Daan Michiel. "Mathematical modeling of microstructure and residual stress evolution in cast iron calendar rolls." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0022/NQ38939.pdf.

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5

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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6

Liu, Qiang. "Microstructure Evaluation and Wear-Resistant Properties of Ti-alloyed Hypereutectic High Chromium Cast Iron." Doctoral thesis, KTH, Tillämpad processmetallurgi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-128532.

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High chromium cast iron (HCCI) is considered as one of the most useful wear resistance materials and their usage are widely spread in industry. The mechanical properties of HCCI mainly depend on type, size, number, morphology of hard carbides and the matrix structure (γ or α). The hypereutectic HCCI with large volume fractions of hard carbides is preferred to apply in wear applications. However, the coarser and larger primary M7C3 carbides will be precipitated during the solidification of the hypereutectic alloy and these will have a negative influence on the wear resistance. In this thesis, t

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7

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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8

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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9

Andrade, Ricardo Batista de. "Parametros termicos e estruturais em ferros fundidos cinzento e nodular solidificados em moldes de areia e unidirecionalmente." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265196.

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Orientador: Rezende Gomes dos Santos<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-13T04:21:01Z (GMT). No. of bitstreams: 1 Andrade_RicardoBatistade_D.pdf: 11899050 bytes, checksum: c01c8dae77c3bdae9d6a75358f3c1ffe (MD5) Previous issue date: 2009<br>Resumo: No presente trabalho a solidificação unidirecional em regime transiente de um ferro fundido cinzento com composição hipoeutética e de um ferro fundido nodular de composição eutética são aplicadas para analisar a influência dos parâmetros do processo no núme

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10

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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11

Erturk, Murat Tolga. "Microstructural And Mechanical Characterization Of Metal Active Gas Welded Joint Between Cast Iron And Low Carbon Steel." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612992/index.pdf.

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This study focuses on joining pearlitic ductile cast iron with low carbon steel by welding and investigation of this joint in microstructural and mechanical viewpoints. For this purpose E355 steel and GJS600-3 cast iron were joined using metal active gas (MAG) welding process by G3Si1 filler wire. The joining process is shaped mainly by the problems related to the low weldability of cast. Preheating was applied to prevent formation of cooling cracks and effects of post weld heat treatments (PWHT) were surveyed. Micro examination and micro hardness tests were applied to characterize the general

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12

Ferranti, Louis Jr. "Mechanochemical Reactions and Strengthening in Epoxy-Cast Aluminum Iron-Oxide Mixtures." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19722.

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This investigation is focused on the understanding of mechanical and chemical reaction behaviors of stoichiometric mixtures of nano- and micro-scale aluminum and hematite (Fe2O3) powders dispersed in epoxy. Epoxy-cast Al+Fe2O3 thermite composites are an example of a structural energetic material that can simultaneously release energy while providing structural strength. The structural and energetic response of this material system is investigated by characterizing the mechanical behavior under high-strain rate and shock loading conditions. The mechanical response and reaction behavior are c

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13

COSTA, SANDRA M. C. "Investigação da resistência à corrosão de ferros fundidos com microestrutura bainítica e perlítica em meio de condensado sintético." reponame:Repositório Institucional do IPEN, 2014. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23904.

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Submitted by Maria Eneide de Souza Araujo (mearaujo@ipen.br) on 2015-09-01T18:02:01Z No. of bitstreams: 0<br>Made available in DSpace on 2015-09-01T18:02:01Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado em Tecnologia Nuclear)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Liu, Qiang. "Control of Wear-Resistance Properties in Ti-added Hypereutectic High Chromium Cast Iron." Licentiate thesis, KTH, Tillämpad processmetallurgi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-105854.

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High chromium cast iron (HCCI) is considered as one of the most useful wear resistance materials and their usage are widely spread in industry. The wear resistance and mechanical properties of HCCI mainly depend on type, size, number, morphology of hard carbides and the matrix structure (γ or α). The Hypereutectic HCCI with large volume fractions of hard carbides is preferred to apply in wear applications. However, the coarser and larger primary M7C3 carbides will be precipitated during the solidification of the hypereutectic alloy and these will have a negative influence on the wear resistanc

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15

Berglund, Anders. "Characterization of factors interacting in CGI machining : machinability - material microstructure - material physical properties." Licentiate thesis, KTH, Production Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9258.

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<p>The Swedish truck industry is forced to find new material solutions to achieve lighter engines with increased strength. Customers and new environmental regulations demand both higher specific power and more environmentally friendly trucks, and this places a rising pressure on the manufactures. This demand could be met 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.</p><p>Today, alloyed gray iron is the p

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COLOSIO, MARCO A. "Efeito da nitretação na tenacidade de ferros fundidos nodulares bainíticos e martensíticos." reponame:Repositório Institucional do IPEN, 1998. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11586.

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Made available in DSpace on 2014-10-09T12:53:35Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:58:29Z (GMT). No. of bitstreams: 1 12220.pdf: 3040591 bytes, checksum: cf07d18c47b6b9bc7f1a361b3a6fe286 (MD5)<br>Dissertação (Mestrado)<br>IPEN/D<br>Universidade Mackenzie. Departamento de Engenharia de Materiais, São Paulo

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17

Persson, Daniel, and Eric Vinjegaard. "Undersökning av materialegenskaper för nytt segjärn i jämförelse med traditionellt." Thesis, Högskolan Väst, Avd för maskinteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-5348.

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I denna rapport beskrivs en undersökning och jämförelse av två olika sorters segjärn. Detvå materialen som har studerats har varit det segjärnet som används i Parker Hannifinsnuvarande hydraulikmotorer och ett nytt segjärn, vars mekaniska egenskaper har påståttsvara mer fördelaktiga. Målet med arbetet var att få fram en tillförlitlig jämförelse av de olikamaterialen och avgöra om det fanns ett tydligt underlag för att inleda processen av ett byteav material i vissa komponenter i Parker Hannifins produkter.Det utfördes jämförelser mellan de olika materialens mekaniska egenskaper baserade delspå

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18

Ghasemi, Rohollah. "The influence of microstructure on mechanical and tribological properties of lamellar and compacted irons in engine applications." Doctoral thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Material och tillverkning, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-32052.

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Lamellar graphite iron (LGI) is commonly used in diesel engine applications such as piston rings–cylinder liner where an excellent combination of physical and tribological properties is essential to avoid scuffing and bore polishing issues. The excellent tribological behaviour of LGI alloys is related to the graphite lamellas, which act as solid lubricant agents by feeding onto the tribosurfaces under sliding conditions. However, increasingly tighter emissions and fuel economy legislations and the higher demands on enhanced power and durability have encouraged both engine designers and manufac

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19

Bezděk, Pavel. "Povrchové kalení litiny výkonovým polovodičovým laserem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231690.

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The Master’s thesis deals with the technology of surface hardening by laser. High power diode laser is used for this purpose. Surface hardening is performed on cast iron BS 1452-77, at different speeds laser head and laser power. In introduction, the theoretical part deals with possible ways of hardening focusing on the benefits of laser hardening. There are mentioned basic parts of laser, type industrial lasers and their application in industry. The final part is mentions the using of material and methods used to evaluate samples. The practical part describes the using devices and carries out

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20

Ogata, Paulo Henrique. "Compósitos ferro-grafita para componentes de motores com propriedades tribológicas melhoradas." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-16112015-155422/.

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A constante busca por motores com maior eficiência energética, requer a introdução de novos materiais ou inovações nas rotas de fabricação dos materiais existentes. O presente trabalho busca, a partir de rotas de tratamento térmico, soluções para minimizar o desgaste originado no contato entre corpos metálicos em componentes submetidos a altas pressões de contato em regime lubrificado. A modificação microestrutural a partir de tratamentos térmicos originou matriz martensítica relativamente dura com uma dispersão refinada de nódulos esféricos de grafita, que atuariam como lubrificantes sólidos.

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21

Ferraro, Stefano. "Influence of trace elements on secondary die-cast aluminium alloys." Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3423822.

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Recycling play a key role on saving of natural resources and on reducing pollution. The recycling of aluminium alloys is also cost-effective, since it reduce the material cost and creates a considerable energy-saving. The use of recycled Al alloys (usually called secondary) has improved in recent years also because of their comparable mechanical properties with primary aluminium alloys. During the production of secondary aluminium alloys, the scrap are mixed regardless of their specific chemical composition, and then master alloys or pure elements are added to the molten metal. Furthermore,

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22

Лавошник, О. В. "Удосконалення технологічних процесів ремонту чавунних деталей". Master's thesis, Сумський державний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/72523.

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Пояснювальна записку: 73 сторінок, 17 рисунків, 11 таблиць, 40 літературних джерел. Проаналізовано характер пошкоджень чавунної діафрагми компресора. Проаналізовані існуючі методи зварювання чавунних деталей. Проведені дослідження з встановлення найбільш раціонального застосування матеріалу електродів при відновленні чавунної діафрагми компресора. За результатами дослідження наведені висновки. Наведені заходи з охорони праці та безпеки в надзвичайних ситуаціях. Мета дослідження: здешевлення технології ремонту чавунних деталей компресорної техніки. Об’єкт дослідження: технологія відновлення

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23

Wang, Shuyan. "Formation des microstructures dans la fonte à graphite spheroïdal aux premiers instants de la solidification." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0338/document.

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Les conditions thermiques et le traitement du métal liquide pour la coulée centrifuge des tuyaux de canalisation permettent d'obtenir une solidification sous forme de graphite sphéroïdal sur l'ensemble de l'épaisseur. Il est parfois observé en peau des zones solidifiant selon le mode blanc qui peuvent induire des différences de réponses métallurgiques problématiques. La caractérisation de tuyaux de différents diamètres montre qu'une compétition entre la croissance de l'eutectique métastable et la germination et croissance de l'eutectique stable existe dès le tout début de la solidification. Po

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Fager, Fredrick, and Serg Chanouian. "Nuclear Waste Canister : Evaluating the mechanical properties of cassette steel after casting." Thesis, KTH, Materialvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209803.

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Företaget Svensk Kärnbränslehantering AB (SKB) håller på att utveckla en slutförvaringskapsel som kommer innehålla avfall från den svenska kärnkraften. Det är dock fortfarande en process under utveckling och därför undersöks olika typer av metoder och kapselmaterial för att kunna tillverka en hållbar och säker kapsel. Kapseln består av ett hölje av kopparrör med svetsad botten och lock och en insats med stållock. Insatsen är en cylindrisk konstruktion av segjärn och innehåller en svetsad stålkassett för att skapa utrymmen till det använda kärnbränslet. Insatsen innehåller bland annat stålrör

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Argo, Donald. "Microstructural transitions in directionally solidified graphitic cast irons." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65926.

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26

MELLO, CARLOS ALBERTO TORRES DE. "FATIGUE LIFE OF A FERRITIC NODULAR CAST IRON OF DIFFERENT MICROSTRUCTURES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=3721@1.

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Esta pesquisa teve como objetivos promover variações microestruturais em um ferro fundido nodular ferrítico tipo ASTM A536 60-40-18, pelo do uso de resfriadores durante a solidificação do material e pela adoção de tratamentos térmicos pós-fundição, bem como avaliar a influência de tais variações microestruturais sobre as propriedades mecânicas e vida em fadiga do material. Inicialmente, amostras do material foram fundidas em areia com e sem o uso de resfriadores. Após a fundição, algumas amostras de ambas as condições de resfriamento sofreram normalização, enquanto outras foram recozid

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Jday, Rawen. "Caractérisation microstructurale du graphite sphéroïdal formé lors de la solidification et à l'état solide." Thesis, Toulouse, INPT, 2017. http://www.theses.fr/2017INPT0077/document.

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Les fontes à graphite sphéroïdal sont aujourd’hui très largement utilisées en raison de leurs bonnes propriétés mécaniques. La forme sphéroïdale du graphite est obtenue le plus souvent par l’ajout de magnésium ou de cérium lors de l’élaboration des fontes. Le graphite sphéroïdal peut être obtenu par graphitisation à l'état solide des fontes totalement ou partiellement solidifiées dans le système métastable. L’objectif de ce travail est d’étudier l’effet du traitement de graphitisation à l’état solide sur la croissance du graphite nodulaire d’une fonte à paroi mince qui présente une structure t

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BAPTISTA, ALIXANDRE COELHO. "CORRELATION BETWEEN MICROSTRUCTURE AND FATIGUE LIFE IN NODULAR CAST IRONS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2004. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=6576@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>Esta pesquisa teve como objetivo avaliar a vida-fadiga de dois ferros fundidos nodulares modificados metalurgicamente, sendo uma classe predominantemente ferrítica e outra.perlítica. Inicialmente, amostra dos dois ferros fundidos nodulares ferrítico e perlítico foram fundidas adotando-se moldação em areia na geometria padrão Y-block. Em seqüência, corpos de prova para ensaios mecânicos e de fadiga foram usinados das amostras ferríticas e perlíticas. Após os ensaios de tração e dureza, realizaram-se análises metalográficas qualitativas

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Jacuinde, Arnoldo Bedolla. "The effect of silicon and mischmetal on the structure of high-chromium cast irons for wear resistance applications." Thesis, University of Sheffield, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391044.

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Stevenson, Anthony Nicholas James. "Wear and microstructure of weld-hardfacing deposits of high chromium white cast irons." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243064.

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Oloyede, Olamilekan Rasaq. "Microstructural evolution as a function of cooling rate in rapidly solidified commercial grey cast iron." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/18465/.

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The influence of post-production re-engineering of microstructure through rapid solidification processing at constant elemental composition on microhardness of low alloyed commercial BS1452 grade 250 grey cast iron has been studied. In this investigation, the effect of cooling rate on rapidly solidified droplets cooled separately in Nitrogen and Helium in a 6.5 m high drop-tube are compared against conventionally solidified as-cast alloy. Powder sample sizes obtained ranges from ≥ 850 µm to ≤ 38 µm in diameter with corresponding estimated cooling rate of 200 K s-1 to 16,000 K s-1 in N2 and 700

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Vale, João Luiz do. "Influência da microestrutura de ferros fundidos na ocorrência de metal dobrado e no comportamento tribológico de superfícies brunidas." Universidade Tecnológica Federal do Paraná, 2016. http://repositorio.utfpr.edu.br/jspui/handle/1/2740.

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O presente trabalho discute a influência da microestrutura dos ferros fundidos, cinzento (FFC) e vermicular (FFV), na ocorrência de metal dobrado (FM) em superfícies brunidas e no comportamento tribológico em ensaio lubrificado do tipo anel sobre cilindro. As amostras de ferro fundido foram extraídas diretamente de um bloco de motor de combustão interna, em regiões de diferentes espessuras. O anel de pistão utilizado foi de aço inoxidável martensítico nitretado com perfil assimétrico e o óleo lubrificante foi o SAE 30 CF monoviscoso. A quantificação de sulcos e de metal dobrado (FM) foi realiz

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Paul, Heiko [Verfasser]. "The thermal instability of nanocrystalline materials - an experimental case study of microstructural evolution in ball-milled iron / Heiko Paul." Ulm : Universität Ulm. Fakultät für Ingenieurwissenschaften und Informatik, 2013. http://d-nb.info/1029765472/34.

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Cristofolini, Renato. "Estudo da potencialidade da aplicação do ferro fundido nodular ASTM A536 60-40-18 como materia prima para processos de tixoconformação." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263560.

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Orientador: Maria Helena Robert<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-13T05:19:05Z (GMT). No. of bitstreams: 1 Cristofolini_Renato_D.pdf: 5642775 bytes, checksum: 04967fdc1ef436f81dd6c3fb1fcb52d0 (MD5) Previous issue date: 2009<br>Resumo: Este trabalho analisa a tixohabilidade, a viabilidade de produção de pastas tixotrópicas e as transformações de fase que ocorrem na tixofundição do ferro fundido nodular ASTM A536 60-40-18. A análise da tixohabilidade é feita através de análises térmicas utilizando té

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Penagos, Jose Jimmy. "Efeito do refinamento da microestrutura e da adição de nióbio na resistência ao desgaste abrasivo de ferros fundidos de alto cromo." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/3/3151/tde-25082016-082141/.

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Os Ferros Fundidos de Alto Cromo (FFAC), por apresentarem excelentes propriedades tribológicas, têm sido amplamente utilizados em aplicações específicas envolvendo elevadas perdas de material por abrasão, especialmente no setor da mineração. Entretanto, a demanda por materiais com maior resistência ao desgaste aumenta continuamente, sendo necessárias novas pesquisas nesta área. Portanto, o presente trabalho objetiva avaliar a utilização do nióbio para aumentar, ainda mais, a resistência à abrasão dos FFAC\'s. Por outro lado, quando o FFAC é utilizado na fabricação de peças com geometrias irreg

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Sayeg, Isaac Jamil. "Caracterização microestrutural da decomposição de carbonetos eutéticos M2C em ferro fundido multicomponente do tipo Fe-2C-5V-5Cr-5Mo-5W tratados isotermicamente à 950ºC e 1.050ºC." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-10012011-112231/.

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As ligas de ferro fundido branco multicomponente são aços rápidos resistentes ao desgaste em temperaturas elevadas. Estes aços apresentam carbonetos eutéticos do tipo MC e M2C quando no estado bruto de fundição. Neste trabalho foi caracterizada a microestrutura dos produtos de decomposição após tratamentos térmicos do carboneto eutético metaestável M2C de uma liga de ferro fundido multicomponente com composição (em % peso): 2 wt% de C e 5 wt% de cada um dos elementos V, Cr, Mo e W, o restante é Fe. A liga de ferro fundido multicomponente foi tratada isotermicamente a 950°C e a 1.050°C por temp

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Ceccon, Lorenzo. "Effetto dell'esposizione ad alta temperatura su microstruttura e proprietà meccaniche di ghise sferoidali." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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Lo scopo della presente ricerca è stato valutare l’effetto dell’esposizione ad alta temperatura su microstruttura e proprietà meccaniche di quattro ghise sferoidali prodotte dalle Fonderie Zanardi: ADI 1050 (ghisa duttile austemperata), IDI 800 (ghisa perlitica isotermica), GJS/800-2 (ghisa sferoidale perlitica) e GJS/400-18 (ghisa sferoidale ferritica). Lo studio ha previsto il degrado in temperatura dei quattro materiali, l’analisi delle proprietà meccaniche statiche dopo degrado termico mediante prove di durezza Brinell, analisi microstrutturali, XRD, prove di trazione sia a freddo che all

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"Network patterns in a white cast iron." 2008. http://library.cuhk.edu.hk/record=b5893499.

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Chow, Wing Hei = 白鑄鐵特殊的微結構--網絡圖案 / 周穎熙.<br>Thesis submitted in: November 2007.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2008.<br>Includes bibliographical references.<br>Text in English; abstracts in English and Chinese.<br>Chow, Wing Hei = Bai zhu tie te shu de wei jie gou -- wang luo tu an / Zhou Yingxi.<br>Abstract --- p.i<br>Acknowledgements --- p.iii<br>Chapter Chapter 1 --- Introduction<br>Chapter 1.1 --- Introduction --- p.1<br>Chapter 1.2 --- Background of Thermodynamic --- p.3<br>Chapter 1.3 --- Nucleation in pure metals --- p.4<br>Chapter 1.4 --- Introduction of Grow

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Bisht, Anita. "Effect of Heat Treatment Procedures on Microstructure and Mechanical Properties of Nodular Iron." Thesis, 2009. http://ethesis.nitrkl.ac.in/1501/1/motu-thesis.pdf.

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In their bid to produce cast iron latter than Malleable Iron, the scientist discovered the ductile iron or S.G. Iron (spherodial Graphite iron) way back in 1948.The use of this type of cast iron as an engineering material has been increasing day by day ever since its discovery. It is now replacing steel in many important engineering applications. The production of S.G Iron increased to a large extent during last two decades. The excellent combination of mechanical properties obtained in S.G. iron can further be informed by the heat treatment. The most recent development in this regard is

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Chiang, Shang-Ju, and 江尚儒. "Study on the Microstructure of Low-Alloy Chilled Ductile Cast Iron." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/27531758253275609764.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>97<br>The primary purpose of this research is to study the effects of C and Si contents, method of post inoculation and the employment of chills on the (surface) microstructure and hardness of low-alloy ductile cast irons. The results show that, at a fixed CE, increasing Si content (from 1.15%Si to 1.68%Si) increases nodule count, but reduces carbide content. In addition, late inoculation exerts more effect on irons with higher Si than with lower Si. On the other hand, at a fixed Si content, irons with a higher C content and/or were late inoculated, have higher no

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Vijayaraghavan, Ravi. "A model for evolution of as-cast microstructure in ductile iron alloys." 1996. http://catalog.hathitrust.org/api/volumes/oclc/36853125.html.

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li-de, jiang, and 姜禮德. "Study on Microstructure of Compacted Graphite Cast Iron with In-Mold Treatment." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/48735441388214274787.

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碩士<br>國立臺灣師範大學<br>工業教育研究所<br>89<br>This study mainly focuses on the effect on the microstructure of the compacted graphite iron according to designs of the runner systems, and the different kinds, shapes and quantities of the treatment alloy. The results of the research is below: 1.We can get better rates of the compacted graphite by using the runner systems of the mixed reaction chamber, especially in M-C(fig.3-11) and M-H(fig.3-16). 2.It is not good to put the filter upon the outlet horizontally; otherwise it would be obstructed. It is not good to deal with the molten i

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Tung, Che-Hsiung, and 童哲雄. "The microstructure and mechanical property of hot-rolling nodula r cast iron." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/03196175916010864876.

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Maijer, Daan Michiel. "Mathematical modeling of microstructure and residual stress evolution in cast iron calender rolls." Thesis, 1998. http://hdl.handle.net/2429/10158.

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Mathematical models have been developed for the purpose of predicting the evolution of microstructure and residual stress that develops during the manufacture of hypo-eutectic cast iron rolls for the paper industry. These include, a finite element based heat flow model to predict the evolution of temperature and microstructure, and a preliminary finite element based stress model to estimate the evolution of residual stress. Both models have been implemented in the commercial finite element code ABAQUS. To characterize the evolution of solidified microstructure, specialized routines, emp

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CHEN, JIN-CANG, and 陳錦滄. "A weibull distribution analysis of microstructure andmechanical properties of spheroidal graphite cast iron." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/79200581108802638321.

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Vinjamuri, Raviteja. "Roles of Uniaxial, Shear and Cyclic Loading on the Microstructure and Texture Evolution during Plastic Deformation of Ti6Al4V Alloy." Thesis, 2022. http://ethesis.nitrkl.ac.in/10420/1/2022_PhD_RVinjamuri_516MM1010_Roles.pdf.

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The objective of the present research was to investigate the effects of uniaxial, shear, and cyclic loading on the microstructure and texture evolution of Ti6Al4V (Ti64) alloy during plastic deformation. Ti64 alloy samples were subjected to both uniaxial tension and compression in the temperature range of 298 873 K for different degrees of deformation. During uniaxial tension, refinement of both and grains was observed during deformation at all temperatures. This has been attributed to the continuous dynamic recovery and recrystallization (CDRR) mechanism. A Burgers orientation relations

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Luo, Shi-Han, and 羅仕翰. "Effect of Alloyed Elements and Casting Conditions on the Microstructure of Gray Cast Iron." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/06704654298765431171.

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碩士<br>義守大學<br>材料科學與工程學系<br>101<br>This experiment is divided into two parts, the first part of this study is the effect of alloy elements (Mn、P), thickness of casting (8、13 mm) and amount of inoculant (0.8、1.2wt%) on the microstructure of alloyed gray cast iron. In the second part of the experiment is the influence of Si content (2.25、2.75、3.25wt%) and time of mold release (different cooling rates) by fix casting thickness and amount of inoculant in three different chemical composition (X、Y、Z) casting. The results of first part show manganese and phosphorus make carbide fraction increase. Mang

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Chen, Ming-chieh, and 陳明傑. "Effects of Cerium Content on the Microstructure and Material Properties of Spheroidal Graphite Cast Iron." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/w223pf.

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Velichko, Alexandra [Verfasser]. "Quantitative 3D characterization of graphite morphologies in cast iron using FIB microstructure tomography / von Alexandra Velichko." 2008. http://d-nb.info/99615440X/34.

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Cheng, Tsai Tzung, and 蔡宗成. "The Effect of Alloy Elements and Microstructure on the Magnetic Properties of Ferritic Nodular Cast Iron." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/41259113160369211285.

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碩士<br>國立臺灣科技大學<br>機械工程研究所<br>83<br>The study was aimed to discuss that the effect of nodularity, matrix structure and alloy elements on the magnetic properties of ferritic nodular cast iron in as-cast and heat treated con- dition, and to promote the feasibly of ferritic nodular cast iron been applied as industry magnetic materials. The nodular cast iron bar which was cut into ring sample with outside dia- meter 30mm,inside diameter 18mm,and thickness 5.4mm.After wind- ing ,set up was used h

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