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Tesis sobre el tema "Electron Beam Welding"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 26 de julio de 2025

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1

Stone, Howard James. "The characterisation and modelling of electron beam welding." Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.442487.

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2

OÌ„hara, Masahiro. "Microstructure and toughness of electron beam welds in steel." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309154.

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3

Hochanadel, Joris Erich. "Effect of Beam Characteristics and Process Parameters on the Penetration and Microstructure of Laser and Electron Beam Welds in Stainless Steel and Titanium." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu160503470688313.

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4

Parthipan, Thayaparan. "Electronic system modelling of UT pulser-receiver and the electron beam welding power source." Thesis, Brunel University, 2013. http://bura.brunel.ac.uk/handle/2438/13892.

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Continuous improvements to industrial equipment used in essential industrial applications are a key for the commercial success to the equipment manufacturers. Industrial applications always demand optimum performance and reliability and almost all equipment used in industrial applications is complex and are very expensive to replace. Often modifications to hardware and retrofitting additional hardware are encouraged by most equipment manufacturers and operators. The complexity of these systems however, makes assessment of modifications and design change difficult. This research implemented sys

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5

Ribton, Colin Nigel. "Development of an electron gun design optimisation methodology." Thesis, Brunel University, 2017. http://bura.brunel.ac.uk/handle/2438/15629.

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The design of high quality electron generators to meet specific requirements is important in the application of these devices to a variety of materials processing systems (including welding, cutting and additive manufacture), X-ray tubes for medical, scientific and industrial applications, microscopy and lithography. Designs can be analysed by field solvers, and electron trajectories plotted to provide an indication of the beam quality. Incremental improvement of designs has normally been executed by trial and error, and this can be a time consuming activity requiring expert intervention for e

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6

Al-Gherairy, Jowad Kadhom H. "Feasibility study of an out-of-vacuum electron beam welding system." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316870.

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7

Turner, Mark W. "The Laser Cleaning of Aerospace Titanium Alloys for Electron Beam Welding and Diffusion Bonding." Thesis, University of Manchester, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.518438.

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8

Maximo, Henry Wilson Pohling. "Avaliação de propriedades mecânicas e microestruturais de juntas de aços maraging soldadas por meio dos processos laser e feixe de elétrons." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-27052015-090049/.

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Neste trabalho estudou-se as propriedades obtidas em juntas soldadas pelo processo de soldagem a laser do tipo estado sólido de onda contínua guiado por fibra, e os resultados foram comparados com juntas soldadas pelo processo feixe de elétrons. O material utilizado foi o aço maraging 350 - ASTM A 538 Grade C. As soldas realizadas com o processo feixe de elétrons possuem um procedimento de soldagem aprovado. A junta selecionada para a elaboração do trabalho foi do tipo sobreposta com material de base de espessuras diferentes, respectivamente iguais a 1,00 e 0,78 mm. As juntas soldadas foram av

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9

Říčan, Daniel. "Struktura a vlastnosti průvaru oceli AMS 5659 vytvořeného elektronovým svazkem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230799.

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This master thesis deals with the electron beam welding of the AMS 5659 steel used in industry for special hydraulic cylinders (Fig. 1). A theoretical analysis of electron beam welding and analysis of the influence of selected welding parameters on penetration characteristics are in the first part of the thesis. The second part contains an evaluation of the implemented experimental penetrations on samples of the steel in the hardened condition H1025 and after solution heat. It was also done a properties assessment of the same samples that were been hardened again. The light microscopy (SM), th

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10

Gustafsson, Andreas. "Shaped Charge Design : Construction of a Miniaturized Shaped Charge." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-85465.

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The shaped charges on the market today ranges from about 20 to 200 mm in diameter but there is a need of smaller sizes for example in applications where a small projectile with a high speed is needed or to equip or take out drones with. The objective of this thesis work was to develop a miniaturized shaped charge with dimensions smaller than those available today and preferably with a diameter down to 10 mm. The project was conducted at Karlstad University in collaboration with Saab Dynamics AB. The process used during this project was to start with a feasibility study to obtain information ab

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11

Herčík, Tomáš. "Svařitelnost kobaltových slitin hybridní metodou Laser-TIG." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417054.

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The master thesis summarizes the critical situation of the lack of a cobalt used in different industry branches. Due to its increasing price, it will not be possible to use in existing applications. One of these applications is production of cobalt alloys where the replacement of this element is impossible. This type of material keeps mechanical properties at high temperature. However, a suitable choice of technology can achieve at least its savings. In the field of welding, the alloys are joined without any use of an additional material. The possible solution could be the use of hybrid techno

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12

Skalka, Jan. "Svařování Ti 6Al 4V elektronovým svazkem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241156.

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The thesis is dedicated to welding combination of titanium alloy Ti-6Al-4V and austenitic steels 1.4301 by electron beam. Based on literature studies of bonding titanium and its alloys with steels, it was proposed to select for welding interlayer of copper, which could limit the impact of intermetallic phases on the mechanical properties of the weld seam and enable the creation of weld. For welding the pipe samples were used three methods of welding with various welding parameters. Samples which remain after thermal cycling vacuum-tight, were then further analyzed (micro-hardness, tensile test

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13

Rüthrich, Karsten. "Beitrag zur Entwicklung des Elektronenstrahl-Mehrspot/Mehrprozess-Schweißens von Gusseisen/Gusseisen- und Gusseisen/Stahl-Verbindungen ohne Schweißzusatzstoffe." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2014. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-149349.

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Ziel der Arbeit war die Entwicklung des Elektronenstrahl-Mehrspot/Mehrprozess-Schweißens für Gusseisen/Gusseisen- und Gusseisen/Stahl-Verbindungen ohne Schweißzusatzstoffe. Im Vergleich zum Einbad-Schweißen entsteht beim Mehrbad-Schweißen eine porenarme Schweißnaht, gleichzeitig senkt sich die Schweißnahthärte geringfügig ab. Dabei kann die Kaltrissbildung in der Schweißnaht für arteigene Gusseisen-Verbindungen nicht unterdrückt werden. Für Mischverbindungen ist der Strahlversatz der bestimmende Schweißparameter beim Mehrbad-Schweißen. Über diesen kann sowohl die chemische Zusammensetzung der

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14

Araujo, Victor Hugo Leal de. "Efeito da soldagem por feixe de elétrons e tratamento térmico pós-soldagem em características mecânicas e microestruturais de tiras de Inconel 718 aplicadas em componentes nucleares." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/97/97134/tde-22082013-091451/.

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A nacionalização de componentes para a indústria nuclear é de grande importância para o Brasil não só pela diminuição de custo como também pela absorção de tecnologia incorporada no desenvolvimento dos materiais e processos envolvidos. A grade espaçadora fabricada em tiras de Inconel 718 e soldada por feixe de elétrons é um desses componentes que não são fabricados no Brasil e constituem papel fundamental na estrutura do Elemento Combustível. Na realização deste projeto foram empregadas tiras de Inconel 718, fornecidas pelas Indústrias Nucleares do Brasil S.A. - INB. Inicialmente as tiras no e

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15

Pan, L. (Longxiu). "Two methods for processing an ultrafine ferritic grain size in steels and the thermal stability of the structure." Doctoral thesis, University of Oulu, 2004. http://urn.fi/urn:isbn:951427489X.

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Abstract In this thesis, methods to process ultrafine ferritic (UFF) structures in steels, i.e. grain sizes below about 3 μm have been investigated. It is shown here, in accordance with the results in the literature, that a steel with a UFF grain size can be obtained by two methods, more or less convenient to mass production: deformation-induced ferrite transformation from fine-grained austenite (the DIF route) and the static recrystallization of various heavily cold-worked initial microstructures (the SRF/SRM route). In the present work, the influencing factors in the processing of UFF stru

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16

Monte, Isabel Rocha do. "Caracterização microestrutural do Aço API 5L X65 soldado por feixe de elétrons com diferentes aportes térmicos." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/97/97134/tde-07102013-114545/.

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Esta Dissertação abrange a caracterização microestrutural do aço API 5L X65 soldado por feixe de elétrons (EBW) com cinco diferentes aportes térmicos e sem o uso de metal de adição. O aço API 5L X65 pertence à classe de aços ARBL e é empregado na fabricação de oleodutos e gasodutos. As três regiões da solda metal-base (MB), zona termicamente afetada (ZTA) e zona fundida (ZF) foram caracterizadas por microscopia ótica (MO), microscopia eletrônica de varredura (MEV), difração de raios X e medidas de microdureza Vickers. As microestruturas encontradas nestas três regiões são bastante distintas. O

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17

Mayr, Peter. "8. Chemnitzer Symposium Füge- und Schweißtechnik 2012: Tagungsband, 20. November 2012." Technische Universität Chemnitz, 2012. https://monarch.qucosa.de/id/qucosa%3A19784.

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Im Rahmen des Symposiums gaben Vertreter weltweit agierender Konzerne, wie Audi AG, voestalpine Gießerei Linz, Alstom AG und SITEC GmbH Einblick in ihre Forschungsaktivitäten im Bereich Mobilität, Energietechnik, Medizintechnik und Sondermaschinenbau. Die schweißtechnischen Institute der Universitäten Aachen, Braunschweig, Clausthal, Dresden, Magdeburg und Graz gaben einen Überblick über universitäre Forschungsaktivitäten.

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18

Rozsypal, Oldřich. "Posouzení vlastností heterogenních tupých svarů metodami svařování laserem a svazkem elektronů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231074.

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The project was developed within the engineering degree in engineering technology, and is focused in welding together of two different materials. Welds will be done on a high strength steel Domex 420 MC and deep drawing steel DC01 using laser welding, and will be compared with the method of electron beam welding. Part of this project is a scientific research describing the basic physical principles of both methods, different types of lasers, welding material properties and inspection of welds. In the experimental part was carried tensile test, macroscopic and microscopic examination. Finally,

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19

Král, Michael. "Struktura a vlastnosti svarového spoje TiAl6V4/6061 zhotoveného technologií elektronového paprsku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318832.

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Titanium and aluminium alloys are among the most used construct materials due to their physical and mechanical properties except steels. The joining of these alloys can improve properties of whole construction but it is still difficult task. Especially welding of titanium and aluminium alloys is difficult cause formation of undesirable intermetalic phases in the weld. This thesis focuses on influences of electron beam welding parameters especially focusing and deflection of beam and preheating of base material to quality of heterogeneous join of titanium alloy Ti6Al4V and aluminium alloy EN AW

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20

Buirette, Christophe. "Étude des mécanismes de propagation de fissure dans un alliage de titane TA6V soudé par faisceau d'électrons." Thesis, Toulouse, INPT, 2011. http://www.theses.fr/2011INPT0103/document.

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Dans le domaine aéronautique la réduction du ratio buy to fly pour les pièces de structure est devenue un enjeu majeur. Il s'agit de développer, à coût matière réduit, des appareils consommant moins de carburant tout en proposant une autonomie et une capacité de transport plus importantes. Ce travail de recherche s'inscrit dans cette problématique industrielle, et accompagne Airbus dans le développement du procédé de soudage par faisceau d'électrons de tôles en alliage TA6V dans le but de concurrencer (en proposant une diminution du ratio buy to fly) les procédés classiques de forgeage/matriça

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21

Pinto, Filipe Corrêa. "Caracterização mecânica e microestrutural do aço API 5L - X65 soldado por feixe de elétrons." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/97/97134/tde-22082013-165145/.

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O objetivo deste trabalho é a caracterização mecânica e microestrutural do aço API 5L-X65 soldado por feixe de elétrons para possível aplicação no processo de fabricação de dutos para o transporte de óleo e gás. A caracterização do material será realizada por meio de microscopia ótica, análise de textura via difração de raios X, microdureza Vickers e ensaio Charpy V. Para a caracterização microestrutural, foram testados diferentes ataques químicos para a identificação das fases presentes na microestrutura de cada uma das três regiões que compõem uma junta soldada, zona fundida (ZF), zona termi

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22

Alves, Paulo Henrique de Oliveira Monteiro. "Soldagem a laser e caracterização microestrutural do aço avançado de alta resistência DP1000." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/97/97134/tde-04122018-143028/.

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O desenvolvimento dos veículos atuais vem sendo impulsionado pela necessidade de redução de massa associada com o aumento da segurança para os passageiros. Na procura de novos materiais e processos para atender estas exigências, os aços bifásicos ferrítico-martensíticos ou DP vêm se destacando entre os aços avançados de alta resistência (AHSS), por apresentar elevada resistência mecânica e boa ductilidade. Da mesma forma, a soldagem a laser vem se mostrando promissora para junção desta classe de materiais. Este processo permite unir os aços DP com boa qualidade metalúrgica sem significativas d

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23

Havlík, Petr. "Svařování heterogenních svarových spojů Ti/Al slitin pomocí elektronového svazku." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-412926.

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The problematics of weldability of heterogeneous welds of aluminium and titanium alloys produced by electron beam welding is discussed in this work. Homogenous welds of selected alloys were analyzed in the first stage. Welding of these materials relates to formation of intermetallic phases at the interface of base materials due to differences in physical, chemical and metallurgical properties of base materials. One of the prerequisites for producing high quality weld joints is to find optimal process parameters. The influence of selected process parameters to integrity, structure and mechanica

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24

Jankůj, Luděk. "Svařování ODS materiálů elektronovým svazkem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254219.

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Thesis on Electron beam welding of ODS materials is divided into theoretical and experimental part. In the first part the theoretical research work focuses on the accurate description of the candidate materials in a research fusion reactor ITER. Following are detailed constructional ODS materials and tungsten alloy as a material of the first wall. The second part of the theoretical research deals with various possibilities of joining high-melting dissimilar materials such as brazing or electron beam welding as well, which will be established in the experimental section. The experimental part o

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25

Vaňhara, Vojtěch. "Analýza lomového chování elektronovým paprskem připraveného svaru oceli X5CrNiCuNb16-4." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-319560.

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The diploma thesis is focused on the determination of the mechanical properties and fracture behaviour of the weld joint X5CrNiCuNb16-4 steel prepared by using electron beam technology. The theoretical part is based on summarization of the relevant information about welding, principle of electron beam welding and testing methods of welded joints. The experimental part of the thesis contains results of practical measurements and analyses, realized for evaluation of the mechanical and structural properties of the base material and weld.

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26

Byrtus, Robin. "Mechanické vlastnosti svaru titanové slitiny TiAl6V4 připraveného pomocí technologie elektronového paprsku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378407.

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The aim of the diploma thesis is to evaluate the mechanical properties and fracture behavior of the weld join Ti6Al4V titanium alloy prepared by using an electron beam technology. The theoretical part deals with the welding of titanium alloys with the help of electron beam, the weldability evaluation of titanium alloys, the influence of electron beam welding on the microstructure and the methods of testing of weld joints. Using the experiments, the mechanical properties of the base material and the weld were evaluated and a structural analysis of the weld was performed.

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27

Roubalová, Jana. "Aplikace svařování elektronovým svazkem pro rekonstrukci vzorků pro mechanické zkoušky z malých objemů materiálu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-234454.

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This thesis is focused on application samples with the inner insert used for Charpy impact test. This insert is welded to additional material by electron beam with pre-selected welded parameters. These parameters were chosen from data of performed experiments on homogenous welds. Resulting heterogenous weld was performed of evaluation of the microstructure, chemical composition and microhardness. Experimental materials were used austenitic steel 17 240 and ferritic steel 17 153 used on high-temperature applications.

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28

Kottman, Michael Andrew. "Additive Manufacturing of Maraging 250 Steels for the Rejuvenation and Repurposing of Die Casting Tooling." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1416854466.

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Bardel, Didier. "Rôle de la microstructure d'un alliage à durcissement structural sur son comportement et sa tenue mécanique sous sollicitations cycliques après un transitoire thermique." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0045/document.

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Pour fabriquer le caisson-coeur du futur réacteur expérimental Jules Horowitz (RJH), un assemblage de viroles est effectué à l'aide d'un procédé haute énergie : le soudage par faisceau d'électrons (FE). L'aluminium 6061-T6 qui a été choisi pour la fabrication de ces viroles est un alliage à durcissement structural, ce qui signifie que ses propriétés mécaniques sont très fortement dépendantes de son état de précipitation. Lors du soudage des viroles, l'état microstructural du matériau est affecté : on assiste notamment à une dégradation de l'état fin de précipitation (T6). Les conséquences de c

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30

Lodini, Alain. "Contribution a l'etude de l'instabilite de phase de deux alliages cuivreux a durcissement structural et a memoire de forme au cours d'une deformation plastique : application au soudage par faisceau d'electrons." Reims, 1987. http://www.theses.fr/1987REIMS015.

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Analyse des mecanismes de transformation par des methodes physiques complementaires: dilatometrie, calorimetrie, microscopie electronique, diffraction rx, electronique et neutronique. Analyse de la precipitation dans l'alliage cu-1% cr-zr. Influence de la deformation sur le mecanisme de precipitation. Interpretation thermodynamique du phenomene. Etude du mecanisme de deformation dans l'alliage cu-12,6% al a l'etat martensitique. Determination des transformations de phase et developpement d'un effet de memoire de forme. Ces transformations structurales sont a l'origine de la fragilisation des c

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31

MAXIMO, HENRY W. P. "Avaliação de propriedades mecânicas e microestruturais de juntas de aços maraging soldadas por meio dos processos laser e feixe de elétrons." reponame:Repositório Institucional do IPEN, 2014. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23827.

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Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2015-07-23T11:12:14Z No. of bitstreams: 0<br>Made available in DSpace on 2015-07-23T11:12:14Z (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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32

Antonysamy, Alphons Anandaraj. "Microstructure, texture and mechanical property evolution during additive manufacturing of Ti6Al4V alloy for aerospace applications." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/microstructure-texture-and-mechanical-property-evolution-during-additive-manufacturing-of-ti6al4v-alloy-for-aerospace-applications(03c4d403-822a-4bfd-a0f8-ef49eb65e7a0).html.

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Additive Manufacturing (AM) is an innovative manufacturing process which offers near-net shape fabrication of complex components, directly from CAD models, without dies or substantial machining, resulting in a reduction in lead-time, waste, and cost. For example, the buy-to-fly ratio for a titanium component machined from forged billet is typically 10-20:1 compared to 5-7:1 when manufactured by AM. However, the production rates for most AM processes are relatively slow and AM is consequently largely of interest to the aerospace, automotive and biomedical industries. In addition, the solidifica

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33

Seraphim, Rafael Molena. "Dessorção de gases de juntas soldadas em camaras de ultra-alto vacuo de aneis de armazanamento de eletrons." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263371.

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Orientadores: Antonio J. Ramirez, Maria Clara F. Ierardi<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-09T21:56:05Z (GMT). No. of bitstreams: 1 Seraphim_RafaelMolena_M.pdf: 6485115 bytes, checksum: 380cfffee5fa982ec74a9cdc78c88e3a (MD5) Previous issue date: 2007<br>Resumo: O avanço cientifico no estudo de átomos, moléculas e proteínas tem recebido uma contribuição significativa dos aceleradores de partículas, que em sua grande maioria são utilizados para a geração de radiação síncrotron. Por isso, o apri

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34

YANG, WEN-ZHO, and 楊文藻. "Phenomenon of electron beam welding." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/42592377481128805832.

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Oliveira, Diogo Brízido Caldas. "Electron Beam Welding of TZM plates." Master's thesis, 2015. http://hdl.handle.net/10362/31890.

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Recently, many efforts have been made to join molybdenum and its alloys, such as TZM, due to their interest for industrial applications. However, it has a poor weldability due to high thermal conductivity and high melting temperature, sensitivity to gas impurities and lack of solid state transformations leading to coarse grain formation. Electron beam welding (EBW) is a high energy density process, and welding TZM can result in a smaller fusion and heat affected zones. The aim of this study was to perform an exploratory investigation on the ability of EBW to weld TZM, focusing on the major pro

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WU, ZONG-HUI, and 吳宗輝. "Shape of three-dimensional electron beam welding cavity." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/62856537290845671220.

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Tsai, Wei-Lun, and 蔡瑋倫. "Friction stir welding and Electron beam welding of aerospace application Aluminum alloys." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/52650672137722483517.

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碩士<br>南台科技大學<br>機械工程系<br>94<br>Both 2000 and 7000 series are high strength, heat treatment aluminum alloys with high specific strength and excellent corrosion resistance. Although it’s used widely in aerospace industry, it’s still difficult to get the excellent quality from traditional fusion welding. Electron beam welding (EBW) is the nontraditional, high energy density welding process. Because the welding process in vacuum to lead to a few porosity defects for the aluminum alloys welding. So it’s also suitable for aluminum alloys welding. Friction stir welding (FSW) is a solid-state joining

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38

Doong, Suh-Lih, and 董素麗. "Multi-objective Process Optimization of Electron Beam Welding Inconel 718." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/wcytd5.

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碩士<br>國立高雄第一科技大學<br>機械與自動化工程所<br>96<br>Electrical Beam welding is a quite potential process technology in the industry in the whole world at present. The electron beam has been used widely in the Aero Engine manufacturing process. E.B. welding is hard to generally apply to industry because the equipment of E.B. welding machines is very expensive. It also failed to apply to manufacture industry. E.B. welding has achieved remarkable success in Aero Engine manufacturing with domestic institute, and a few academic research departments. EB Welding is high efficiency but expensive equipment, and dif

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39

Ku, Jin-Son, and 古錦松. "Electron Beam Welding Studies of Ferritic and Duplex Stainless Steel." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/87132388280919279656.

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Chen, Chun-Teng, and 陳君謄. "Surface Ripple Induced by Thermocapillary force in Electron Beam Welding." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/53720910453468283094.

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41

Shi, J. Q., and 施建全. "Mechanical Property of Ti-15-3 alloy After Electron Beam Welding." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/27523388465905749117.

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碩士<br>國防大學理工學院<br>兵器系統工程碩士班<br>98<br>This paper studies the effect of industrial heat treatments on element distribution of Ti-15-3 alloy close to fusion zone area after electron beam welding (EBW) process. The effect of heat treatment on creep properties of Ti-15-3 EBW weldments is also investigated. The microstructure evolution and possible mechanism of related heat treatments on creep behavior are discussed.

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42

Ying, Li Chung, and 李忠熲. "Mechanical Property of Ti-6-4 alloy After Electron Beam Welding." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/81338482284237407115.

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碩士<br>國防大學理工學院<br>兵器系統工程碩士班<br>98<br>In this thesis, several industrial heat treatments were employed on electron beam processed Ti-6-4 weldment to investigate their effect on following creep properties as well as the microstructure evolution. It was found that when creep test at both T=450℃, σ=416MPa and T=500℃, σ=520MPa, solution treatment ( 954℃/15min/ Water Quenching) on Ti-6-4 weldment presents the lowest steady state strain rate of creep, i.e. exhibits the best creep resistance of the tested heat treatments. The observed microstructure and possible mechanism are discussed.

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43

Kuo, Kuo Yang, and 郭養國. "Experimental Measurements of Metals Processing (1)Electron Beam Welding Dissimilar Metals." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/06889753126094200757.

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44

Chi, Chao-Ting, and 吉兆鼎. "A Study on Electron Beam Welding of Magnesium-Aluminum-Based Alloys." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/26544203143054141642.

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博士<br>國立交通大學<br>材料科學與工程系所<br>95<br>The research materials in this study consist of home-made 12mm-thick pure Mg, AZ31B, AZ61A, and AZ91D extruded plates, and a commercial pure Al ingot. The oxide layer was removed from the plate surfaces, and two plates were welded together under a high vacuum using a butt joint process with similar and dissimilar metals welding (SMW and DMW) without a filler. This process created a 11mm-thick weldment. The follow-up research results can be divided into three stages. Stage 1 indicates that the optimum parameters of low-voltage (LV) electron beam welding (E

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45

Horng, Jeng-Yie, and 洪正義. "Process Development of Electron Beam Welding Nickel-Based Alloy Inconel 718." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/53347425348646891788.

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碩士<br>國立高雄第一科技大學<br>機械與自動化工程研究所<br>100<br>Inconel 718, a nickel-based alloy, is used extensively in the manufacture of aircraft engines. A sound welding process for Inconel 718 is a critical capability for all engine manufacturers in the aerospace industry. Welding parameters and the heat treatment state of the material have a significant effect on the quality and cost of the welding process. The Inconel 718 material used in this study was either solution heat-treated or solution heat-treated and then precipitation-hardened. The purpose of this study was to evaluate the effect of pre-weld heat

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46

Yang, Chung-Lin, and 楊仲霖. "The Influence of Electron Beam Welding Parameters on Dissimilar Welding of Alloy 690 and 304L Stainless Steel." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/31950419348426778747.

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碩士<br>國立成功大學<br>機械工程學系碩博士班<br>90<br>Regarding the SCC of alloy 600 tube and 308 SS plate dissimilar weldment at the reactor of nuclear power plant, in this study EBW is used to joint alloy 690 and 304L SS plates to replace the alloy 600 and 308 SS to get their autogenous and dissimilar weldments individually. The purpose of this study is to discuss the effect on microstructure, mechanical properties and corrosion behavior of these resulting weldments with different EBW parameter. 　At first, the bead on plate (BOP) method is used to understand the effect on EBW penetration of 3mm alloy 690 and

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47

Hsiao, Chung-Cheng, and 蕭仲程. "Molecular Dynamics Simulation Study of Carbon Nanotube Welding with Electron Beam Irradiation." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/06804937364444497905.

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碩士<br>國立成功大學<br>機械工程學系碩博士班<br>93<br>Crossing single-walled carbon nanotubes can be welded by electron beam irradiation in a transmission electron microscope to form molecular junctions. If a junction formed by two CNTs, one of which is semiconducting and the other of which is metallic, can act as a rectifying diode, while a multiterminal heterojunction, such as a “Y” or “T” junction, works as a transistor. The properties of these junctions completely depend on the bonding in the joint, such as dangling bond, sp-, sp2-, or sp3- hybridized. But determination of the bonding structure of CNT junct

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48

Chatterjee, Subhradeep. "Microstructure Development During Laser And Electron Beam Welding Of Ti/Ni Dissimilar Joints." Thesis, 2006. https://etd.iisc.ac.in/handle/2005/601.

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Fusion welding of dissimilar metals constitutes a crucial processing stage in a variety of applications, and the use of high energy beams (HEB) like lasers and electron beams for such welding applications has several advantages, such as, precision, narrow heat affected zone, and consequently, low distortion. An understanding of microstructural evolution in the weld is a prerequisite for producing sound joints with desired properties. HEB welding of similar metals have been studied extensively. In contrast, fewer studies have been directed toward understanding the fundamental aspects of solidif

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49

Chatterjee, Subhradeep. "Microstructure Development During Laser And Electron Beam Welding Of Ti/Ni Dissimilar Joints." Thesis, 2006. http://hdl.handle.net/2005/601.

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Fusion welding of dissimilar metals constitutes a crucial processing stage in a variety of applications, and the use of high energy beams (HEB) like lasers and electron beams for such welding applications has several advantages, such as, precision, narrow heat affected zone, and consequently, low distortion. An understanding of microstructural evolution in the weld is a prerequisite for producing sound joints with desired properties. HEB welding of similar metals have been studied extensively. In contrast, fewer studies have been directed toward understanding the fundamental aspects of solidif

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50

Frafjord, Jaret James. "Combinatorial design of Nickel-Chromium alloys by physical vapor deposition and electron beam welding." 2004. http://etd.utk.edu/2004/FrafjordJaret.pdf.

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Thesis (M.S.)--University of Tennessee, Knoxville, 2004.<br>Title from title page screen (viewed Jan. 12, 2005). Thesis advisor: George M. Pharr. Document formatted into pages (ix, 87 p. : ill. (some col.)). Vita. Includes bibliographical references (p. 80-86).

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