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Dissertations / Theses on the topic 'CMSX-4 CMSX-4'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Wintrich, Klaus. "Schädigungsverhalten der einkristallinen Superlegierung CMSX-4 bei Hochtemperaturbelastung." [S.l. : s.n.], 2004. http://elib.tu-darmstadt.de/diss/000446.

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2

Charles, C. M. "Low cycle fatigue mechanisms in CMSX-4." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597493.

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This thesis investigates the low-cycle fatigue behaviour of CMS-4. The focus is on R=0 load controlled fatigue, with an emphasis on deformation at 750°C. A particular aim of this research is to identify how fatigue proceeds at stress concentrators. Here, high stresses in plain bars have been compared with similar maximum stresses around the known stress concentration of a Kt-2 notch. Fatigue tests were conducted on both plain and notched specimens, across a range of stresses and temperatures, and the deformation has been imaged using TEM. The plain bars show a range of deformation mechanisms,

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3

Frey, Henning. "Werkstoffmechanische Parameterstudien zur Hochtemperaturverformung einkristalliner Superlegierungen mit einem anisotropen Kriechmodell." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973070013.

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4

Klabbers-Heimann, Jürgen Johannes. "Anwendungsgrenzen von modernen Nickelbasis-Superlegierungen in effusionsgekühlten Bauteilen zukünftiger Gasturbinen." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=967068339.

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5

Ooi, Thian Ngan. "High temperature oxidation of platinum aluminide coated CMSX-4." Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.444569.

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6

Wang, Enhai. "Metal-mold reactions in CMSX-4 single crystal superalloy castings." abstract and full text PDF (UNR users only), 2009. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1464425.

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7

Gunturi, Satish Sivarama Krishna. "Anisotropic creep of single crystal nickel based superalloy CMSX-4." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621189.

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8

Hadjiapostolidou, Despina. "Temporal behaviour of nickel-base superalloys Rene 80 and CMSX-4." Thesis, Imperial College London, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.509793.

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9

Drew, G. L. "Thermo-mechanical fatigue of the single crystal nickel based superalloy CMSX-4." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598651.

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This thesis has been to develop the understanding of, and capability to accurately model, the response of the commercial single crystal nickel-based superalloy turbine blade material CMSX-4<sup>TM1</sup>, and like-alloys, under thermo-mechanical fatigue, for the range of near-<001> orientation corresponding to the primary turbine blade axis. Thermo-mechanical fatigue (TMF) testing was conducted together with creep and isothermal low cycle fatigue (LCF) testing, and analysed in order to investigate inelastic deformation, microstructural evolution, crack growth and oxidation damage phenomena. Ba

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10

Jung, JineSung. "Investigation of the effect of lanthanum on the oxidation of CMSX-4." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/29153.

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Single-crystal nickel-base superalloys are extensively used for turbine blades with thermal barrier coating (TBC) systems in gas turbine engines. In the event of the coating failure in service, the substrate is directly exposed to a corrosive gas environment and is damaged by oxidation. Understanding the oxidation behaviour of the bare metal is crucial to improve the performance of single-crystal nickel-base superalloys. This research focuses on elucidating the high temperature oxidation behaviour of the CMSX-4 alloy doped with lanthanum, including the transient oxidation behaviour during heat

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11

Proctor, Caroline Susan. "Formation and effects of intermetallics in the rhenium-containing nickel-base superalloy CMSX-4." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361695.

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12

Matan, Nirundorn. "A rationalisation of the creep deformation of CMSX-4 nickel-base superalloy single crystals." Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624345.

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13

Wright, Lawrence William. "Creep deformation of CMSX-4 NBSCS during uniaxial and multiaxial loading at high temperature." Thesis, University of Cambridge, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619709.

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14

Marx, Michael [Verfasser]. "Einfluss der Mikrostruktur auf die Ausbreitung von Mikrorissen in der einkristallinen Nickelbasissuperlegierung CMSX-4 / Michael Marx." Aachen : Shaker, 2004. http://d-nb.info/1170545343/34.

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15

Walter, Claudia. "Simulation of diffusion processes in turbine blades and large area deposition of MAX phase thin films with PVD /." Aachen : Shaker, 2005. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014643782&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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16

D'Souza, Neil. "Texture evolution and microsegregation during directional and single crystal solidification of the nickel based superalloy, CMSX 4." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302513.

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17

Göbenli, Gülcan. "Werkstoffwissenschaftliche Untersuchungen zum ein- und mehrachsigen Kriechverhalten der Nickelbasis-Superlegierungen CMSX-4 und LEK 94 oberhalb 1000°C." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976780240.

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18

Liu, Jing. "Mechanisms of lifetime improvement in Thermal Barrier Coatings with Hf and/or Y modification of CMSX-4 superalloy substrates." Doctoral diss., University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3423.

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In modern turbine engines for propulsion and energy generation, thermal barrier coating (TBCs) protect hot-section blades and vanes, and play a critical role in enhancing reliability, durability and operation efficiency. In this study, thermal cyclic lifetime and microstructural degradation of electron beam physical vapor deposited (EB-PVD) Yttria Stabilized Zirconia (YSZ) with (Ni,Pt)Al bond coat and Hf- and/or Y- modified CMSX-4 superalloy substrates were examined. Thermal cyclic lifetime of TBCs was measured using a furnace thermal cycle test that consisted of 10-minute heat-up, 50-minute d

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19

Giraud, Rémi. "Influence de l'histoire thermique sur les propriétés mécaniques à haute et très haute température du superalliage monocristallin CMSX-4®." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2014. http://www.theses.fr/2014ESMA0005.

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Ce mémoire de thèse est consacré à une étude du fluage isotherme et anisotherme à diversniveaux de température et à l’analyse fine des évolutions microstructurales associées à diverschargements thermomécaniques imposés du superalliage monocristallin, CMSX-4®. Cetravail est complété par la validation d’un modèle de comportement mécanique permettantd’intégrer ces évolutions microstructurales (fraction volumique des phases en présence,largeur des couloirs de matrice gamma, ...) pour déterminer la durée de vie du matériau.Parallèlement, le rôle de la microstructure initiale du matériau associée au

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20

Gambone, Justin J. "Quantitative metallography tracking and analysis for the scanning laser epitaxy process applied to CMSX-4 and Rene-80 nickel-based superalloys." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/50134.

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This thesis involves the development of digital algorithms for the microstructural analysis of metallic deposits produced through the use of Scanning Laser Epitaxy (SLE). SLE is a new direct digital manufacturing (DDM) technique which allows for the creation of three dimensional nickel-based superalloy components using an incremental layering system. Using a bed of powder placed on an underlying substrate and a laser propagating a melt-pool across the sample, a layer of material can be added and through the careful control of SLE settings various microstructures can be created or extended from

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21

Sassy, Odin. "Etude expérimentale du comportement sous chargement de fretting simple à haute température de superalliages à base nickel MC2 et CMSX-4. : Application aux aubes de turbine pour moteur d'hélicoptère." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEC017.

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Ce travail porte sur l'étude du comportement sous sollicitation de fretting sirnple à haute température de superalliages monocristallins à base de nickel MC2 et CMSX-4. Il trouve son application dans le domaine aéronautique, plus précisément au niveau de la turbine haute pression des moteurs d'hélicoptère. Celle-ci a pour fonction de convertir l'énergie cinétique des gaz brûlés en un couple qui entraîne en rotation le compresseur. Elle participe ainsi directement à l'entretien du cycle de combustion du moteur ce qui fait d'elle un organe clé. Située directement en aval de la chambre de combust

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22

Stekovic, Svjetlana. "Low Cycle Fatigue and Thermo-Mechanical Fatigue of Uncoated and Coated Nickel-Base Superalloys." Doctoral thesis, Linköpings universitet, Konstruktionsmaterial, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-9820.

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High strength nickel-base superalloys have been used in turbine blades for many years because of their superior performance at high temperatures. In such environments superalloys have limited oxidation and corrosion resistance and to solve this problem, protective coatings are deposited on the surface. The positive effect of coatings is based on protecting the surface zone in contact with hot gas atmosphere with a thermodynamically stable oxide layer that acts as a diffusion barrier. During service life, mechanical properties of metallic coatings can be changed due to the significant interdiff

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23

Bansal, Rohan. "Analysis and feedback control of the scanning laser epitaxy process applied to nickel-base superalloys." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/51714.

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Scanning Laser Epitaxy (SLE) is a new layer-by-layer additive manufacturing process being developed in the Direct Digital Manufacturing Laboratory at Georgia Tech. SLE allows for the fabrication of three-dimensional objects with specified microstructure through the controlled melting and re-solidification of a metal powder placed atop a base substrate. This dissertation discusses the work done to date on assessing the feasibility of using SLE to both repair single crystal (SX) turbine airfoils and manufacture functionally graded turbine components. Current processes such as selective laser mel

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24

Fontanesi, Elisa. "Performance of the H -> ZZ* -> 4 mu analysis with the CMS Phase-2 muon detector upgrade." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14568/.

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A study of the performance of the Standard Model H(125 GeV) -> ZZ* -> 4 mu analysis with the upgraded CMS muon detector for the high luminosity operation (up to 7.5 x 10^{34} cm^{-2}s^{-1}) at the Large Hadron Collider (HL-LHC) has been carried out. The CMS Phase-2 muon detector upgrade, which will take place from 2024 to 2026, is crucial to efficiently exploit the data that will be collected at the HL-LHC, under very challenging experimental conditions, such as large number of overlapping collisions per event, up to 200 (referred to as pile-up). The H -> ZZ* -> 4 mu analysis essentially reli

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25

Almeida, Miquéias Melo de. "Obtenção de um limite para a largura do bóson de Higgs no experimento CMS via H→ ZZ → (4e, 4, 2e2)." Universidade do Estado do Rio de Janeiro, 2015. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=8860.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Apresenta-se neste trabalho um estudo sobre a largura de decaimento total do bóson de Higgs através do canal H→ ZZ → (4e, 4, 2e2). Segundo o Modelo Padrão da Física de Partículas Elementares, um bóson de Higgs com massa de 126 GeV deve ter uma largura de decaimento total ΓH = 4.15 MeV, muito abaixo da resoluções dos experimentos instalados no LHC. Isto impede uma medida direta sobre os eventos da ressonância. Recentemente foi proposto limitar ΓH a partir da relação entre a taxa de eventos observados na região

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26

Ocalan, Kadir. "Search For Supersymmetry In Jet Topologies With The Cms Detector." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610329/index.pdf.

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Supersymmetry (SUSY) is the most motivated scenario beyond the Standard Model (SM) addressing the problems of the SM in an elegant way by establishing a symmetry which relates matter particles to interaction particles and vice versa. The simplest phenomenologically viable supersymmetric theory is the Minimal Supersymmetric Standard Model (MSSM) which can be accommodated to minimal Supergravity (mSuGra) theory in order to both take gravity into account and constrain its parameter space. CMS detector is one of the general purpose detectors constructed at LHC (Large Hadron Collider) which targets

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27

Gras, Philippe. "Ein System zur Konfiguration von "Front-End-Elektronik" für CMS-Subdetektoren und Studien zur Beobachtbarkeit eines MSSM-Higgs-Bosons im 4-b-Endzustand /." Karlsruhe : Institut für Elektronische Kernphysik Universität Karlsruhe (TH), 2003. http://swbplus.bsz-bw.de/bsz106476769abs.htm.

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Zugl.: Karlsruhe, Univ., Diss., 2003.<br>Text engl. - Parallelsacht.: A front end electronics configuration system for CMS subdetectors and observability of an MSSM Higgs boson in the 4-b final state.

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28

Kovac, Marko. "Mesures des électrons et contraintes de spin-parité et de couplages HVV anormaux via le canal de désintégration H en ZZ(*) en 4 leptons avec le détecteur CMS." Palaiseau, Ecole polytechnique, 2015. http://www.theses.fr/2015EPXX0022.

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29

Sebastian, Johny. "A Temperature stabilised CMOS VCO based on amplitude control." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/33447.

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Speed, power and reliability of analogue integrated circuits (IC) exhibit temperature dependency through the modulation of one or several of the following variables: band gap energy of the semiconductor, mobility, carrier diffusion, current density, threshold voltage, interconnect resistance, and variability in passive components. Some of the adverse effects of temperature variations are observed in current and voltage reference circuits, and frequency drift in oscillators. Thermal instability of a voltage-controlled oscillator (VCO) is a critical design factor for radio frequency ICs, such as

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30

Sabes, David. "Reconstruction des électrons et recherche de couplages anormaux dans le canal pp->ZZ->4l avec le détecteur CMS auprès du LHC." Phd thesis, Ecole Polytechnique X, 2012. http://pastel.archives-ouvertes.fr/pastel-00764836.

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La thèse en physique des particules que j'ai effectuée au sein de l'équipe CMS (Compact Muon Solenoid) du Laboratoire Leprince-Ringuet de l'École Polytechnique porte sur l'analyse de la production de di-bosons pp→ZZ+X et la recherche de couplages anormaux et ce, dans le cadre de l'expérience CMS et des données accumulées à l'aide du grand collisionneur de hadrons du CERN, le LHC. Elle débute avec le démarrage du LHC en fin 2009 et l'étude et l'optimisation de la reconstruction des électrons via la combinaison de deux algorithmes afin d'améliorer les performances à bas moment transverse. Les cr

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31

Wintrich, Klaus. "Schädigungsverhalten der einkristallinen Superlegierung CMSX-4 bei Hochtemperaturbelastung." Phd thesis, 2004. https://tuprints.ulb.tu-darmstadt.de/446/1/K_Wintrich_teil1.pdf.

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In dieser Arbeit werden Gefügeveränderungen und deren Einfluß auf die mechanischen Eigenschaften bei hoher Temperatur (850°C – 1050°C) unter statischer und dynamischer Belastung (Kriechbelastung und LCF) bei einer einkristallinen Ni-Basislegierung (CMSX-4) untersucht. Der Schwerpunkt lag dabei bei der Korrelation der Gefügeveränderungen, insbesondere durch Veränderung des Gefüges und der Schädigung durch Poren und Risse, mit den makroskopischen Materialeigenschaften. Dabei wurde die Anisotropie der einkristallinen Proben durch Versuche an - und -orientierten Proben berücksichtigt. Thermisch ve

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32

Smith, Mathew. "Comparative oxidation study of un-coated and coated CMSX- 4 and CMSX-486 single crystal superalloys." 2013. http://hdl.handle.net/1993/16680.

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Microstructural comparison of the isothermal oxidation performance of an experimental Ni-5Cr-15Al overlay coating applied to CMSX-4 and CMSX-486 was performed at 1100 ℃. High temperature oxidation was carried out in a box furnace for a maximum duration of 192 hrs. Samples were periodically removed and the oxide, coating and substrates microstructurally analyzed using SEM, EDS and XRD equipment. Uncoated CMSX-4 and CMSX-486 were also oxidized using the same conditions in an attempt to understand how the coating affected oxidation performance based on microstructural changes. Results show

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33

Anderson, Timothy. "Stray grain formation in welds of nickel-base superalloy CMSX-4." 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3341178.

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34

Wintrich, Klaus [Verfasser]. "Schädigungsverhalten der einkristallinen Superlegierung CMSX-4 bei Hochtemperaturbelastung / vorgelegt von Klaus Wintrich." 2004. http://d-nb.info/97147219X/34.

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35

Steinhaus, Thomas [Verfasser]. "Validierung des nichtlinearen Verformungsverhaltens von großen Einkristall-Gasturbinenschaufeln aus CMSX-4 / vorgelegt von Thomas Steinhaus." 2001. http://d-nb.info/966050436/34.

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36

Liang, Ya-Han, and 梁雅涵. "Effect of Heat Treatment and High-Temperature Creep Behavior of CMSX-4 Ni-Base Single crystal Superalloy." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/3j25v7.

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37

Payne, Jeremy Nied Herman F. "Finite element modeling of fluid flow and heat transfer in the weld pool of CMSX-4 nickel based superalloy." 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1469569.

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38

Lin, Yu-Cheng, and 林育丞. "Effects of Process Parameter on The High-Temperature Creep Behavior of CMSX-4 Plus Single Crystal Nickel based superalloy." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/u8xehw.

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39

Göbenli, Gülcan [Verfasser]. "Werkstoffwissenschaftliche Untersuchungen zum ein- und mehrachsigen Kriechverhalten der Nickelbasis-Superlegierungen CMSX-4 und LEK 94 oberhalb 1000°C / von Gülcan Göbenli." 2005. http://d-nb.info/976780240/34.

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