Thèses sur le sujet « WELD METALLURGY »
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Flores, Torres Santiago. « Characterisation of weld-features in RR1000 inertia friction welds ». Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8389/.
Texte intégralSugden, Alastair Allen Brockbank. « Towards the prediction of weld metal properties ». Thesis, University of Cambridge, 1989. https://www.repository.cam.ac.uk/handle/1810/221892.
Texte intégralMcRobie, D. E. « Cleavage fracture in C-Mn weld metals ». Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355272.
Texte intégralReed, Philippa Ann Sarah. « Effects of warm prestressing on A533B weld metal ». Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334223.
Texte intégralBabu, Sudarsanam Suresh. « Acicular ferrite and bainite in Fe-Cr-C weld deposits ». Thesis, University of Cambridge, 1991. https://www.repository.cam.ac.uk/handle/1810/221886.
Texte intégralLee, Taeseon. « Impact Welding : Fundamental Studies on Weld Interface Structure ». The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1543493357444402.
Texte intégralReed, Roger Charles. « The characterisation and modelling of multipass steel weld heat-affected zones ». Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334220.
Texte intégralrudow, matthew. « Effect of Oxidation on Weld Strengthof Dissimilar Resistance Weld Interface Between 304 Stainless Steeland Near Equiatomic Austenitic Nitinol Guide Wire ». DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/855.
Texte intégralHodgson, David K. « The Post Weld Heat Treatment Response in the Heat Affected Zone of 2.25Cr-1Mo Steel ». The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1367416587.
Texte intégralMaier, Petra. « Segregation behaviour of phosphorus, manganese and carbon in boiler shell weld materials ». Thesis, Loughborough University, 2002. https://dspace.lboro.ac.uk/2134/35335.
Texte intégralWildash, Clint. « Microstructure factors affecting hydrogen induced cold cracking in high strength steel weld metal ». Thesis, University of Leeds, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364642.
Texte intégralMcFarland, K. W. « Fissure and chevron crack formation in SD2-3% nickel steel submerged arc weld deposits ». Thesis, Cranfield University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376196.
Texte intégralAndersson, Jim. « Manufacturing of Welded Rings : Evaluation of Post-Weld Operations ». Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-74578.
Texte intégralChampagne, Matthew. « Investigation of 2195 and 2219 Post Weld Heat Treatments for Additive Friction Stir Lap Welds ». ScholarWorks@UNO, 2017. https://scholarworks.uno.edu/td/2402.
Texte intégralRafferty, John Gerard. « Robust weld quality : a quality system model for welding engineering and fabrication methodology in the petrochemical, process, structural and offshore industry sectors ». Thesis, University of the West of Scotland, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244009.
Texte intégralKimpton, Claire Michelle. « Effects of post weld heat treatments on the fatigue of the inertia welded nickel based superalloy RR1000 at high temperatures ». Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/1326/.
Texte intégralNarayanan, Badri Kannan. « Effect of Alloying on Microstructure and Precipitate Evolution in Ferritic Weld Metal ». The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243965903.
Texte intégralSutton, Benjamin James. « Solidification Behavior and Hot Cracking Susceptibility of High Manganese Steel Weld Metals ». The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366302517.
Texte intégralAlexandre, Rex T. « Induction Bending of Internally Clad Steel Pipes : Failure Mechanisms & ; Processing Parameter Optimization in Ni-base Alloy Weld Overlays ». The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1480422106975311.
Texte intégralDu, Plessis John. « Control of diffusible weld metal hydrogen through arc chemistry modifications ». Diss., Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-05152007-131110.
Texte intégralPitrun, Miroslav. « The effect of welding parameters on levels of diffusible hydrogen in weld metal deposited using gas shielded rutile flux cored wires ». Access electronically, 2004. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20050202.153920/index.html.
Texte intégralLuskin, Timothy Clark. « Investigation of Weldability in High-Cr Ni-base Filler Metals ». The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366210427.
Texte intégralWheeling, Rebecca Ann. « Eutectic Backfilling : A Fundamental Investigation into Compositional Effects on the Nature of this Crack Healing Phenomenon for Ni-30Cr Weld Applications ». The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523349907312233.
Texte intégralNissley, Nathan Eugene. « Intermediate temperature grain boundary embrittlement in nickel-base weld metals ». Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1156949345.
Texte intégralGould, Elijah Katunich. « Development of Constitution Diagram for Dissimilar Metal Welds in Nickel Alloys and Carbon and Low-Alloy Steels ». The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1285007217.
Texte intégralEksi, Murat. « Optimization Of Mechanical And Microstructural Properties Of Weld Joints Between Aluminium-magnesium And Aluminium-magnesium-silicon Alloys With Different Thicknesses ». Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615649/index.pdf.
Texte intégralsuccessful welding of aluminium alloys gains importance. In this study a research is carried out on eldability of plates having different thicknesses of composition 5754 aluminium and 6063 aluminium in T-fillet geometry using Gas-metal Arc Welding technique. It was aimed to have a successful joint without using pre-weld and post-weld heat treatments. During tests welding current and voltage were the varying parameters as welding speed was held constant. Macro-examinations were performed to see the penetration of the weld metal. It was seen that the type of filler wire greatly effects weld penetration. Hardness tests, tensile tests were done to compare the mechanical properties of the welded joints with different filler wires. Despite having better penetration in 4043 filler wire used weld joints, 5356 filler wire used weld joints had higher tensile strength and ductility. In the second part of the study, a dynamic loading machine was designed and manufactured to see the behavior of the fillet welds under dynamic loading. The amount of stress and strain given to the specimen on this machine was adjustable but can&rsquo
t be measured. The tests that were made with this machine aimed only to compare the number of cycles of specimens before fracture. For dynamic loading tests two groups of specimens were prepared with filler wire 4043
each group having been welded with different heat inputs. It was aimed to see the effect of welding heat input on service lifes but no significant difference between cycle numbers of specimen groups having been welded with different heat inputs was observed. Microstructure examinations of these specimens revealed that coarsening the grains, grain boundaries, particles in PMZ and HAZ regions between Al 6063 base metal and weld zone made these areas more susceptible and favorable for crack propogation than Al 6063 base metal.
Semple, Jennifer K. Semple. « Pedigreed Material Property Data for Residual Stress and Distortion Modeling of Naval Steel Weldments ». The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1533813179740352.
Texte intégralMahaffey, David. « Inertia Friction Welded Ni-Base Superalloys : Process Examination, Modeling and Microstructure ». The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1462525317.
Texte intégralSuh, Sanghyun. « Weldability Evaluation in Autogenous Welds of Alloys 230, 800H, and 825 ». The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471581194.
Texte intégralRace, Julia Margaret. « Carbon diffusion across dissimilar steel welds ». Thesis, University of Cambridge, 1992. https://www.repository.cam.ac.uk/handle/1810/221881.
Texte intégralDai, Tao Dai. « Effect of Postweld Heat Treatment on the Properties of Steel Clad with Alloy 625 for Petrochemical Applications ». The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523572474171801.
Texte intégralChoudhary, Habib Ullah. « Anomalous behaviour of molybdenum in steel welds ». Thesis, University of Cambridge, 1993. https://www.repository.cam.ac.uk/handle/1810/219195.
Texte intégralStevens, Peter Alastair. « Shear zone properties of inertia friction welds ». Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/5770/.
Texte intégralHaddad, Naseem Issa Abdallah. « The development of microstructure in duplex stainless steel welds ». Thesis, University of Cambridge, 1990. https://www.repository.cam.ac.uk/handle/1810/221890.
Texte intégralHall, Bruce Eric. « The microstructure and properties of laser welds in steels ». Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334008.
Texte intégralMirza, Rashad Mahmood. « Determination of low levels of diffusible hydrogen in steel welds ». Thesis, University of Leeds, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342396.
Texte intégralLawson, Benjamin James. « Compositional Optimization, Mechanical Properties, and Tempering Response in Type 410 Stainless Steel Welds ». The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1557201840078564.
Texte intégralAttallah, Moataz. « Microstructure property development in friction stir welds of aluminim based alloys ». Thesis, University of Birmingham, 2008. http://etheses.bham.ac.uk//id/eprint/1024/.
Texte intégralKim, Yeong Ho. « Chromium-free consumable for welding stainless steel corrosion perspective / ». Columbus, Ohio : Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1133285376.
Texte intégralWhitaker, Iain Robert. « The structure and properties of autogenous laser beam welds in aluminium alloys ». Thesis, University of Nottingham, 1994. http://eprints.nottingham.ac.uk/28427/.
Texte intégralJones, Stephen John. « Modelling inclusion potency and simultaneous transformation kinetics in steels ». Thesis, University of Cambridge, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245152.
Texte intégralBaker, Sarah. « Investigating the process-microstructure-mechanical property development in Ti-6AL-4V friction stir welds ». Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/6057/.
Texte intégralDuffey, Matthew James. « Metallurgical Characterization and Weldability Evaluation of Ferritic and Austenitic Welds in Armored Steels ». The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1460910681.
Texte intégralSiggs, Eirian Bethany. « Laser and electron beam treatments for corrosion protection of friction stir welds in aerospace alloys ». Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/479/.
Texte intégralDaus, Friedrich Herbert. « Process, microstructure and property relationships in dissimilar nickel base superalloy inertia friction welds ». Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/1062/.
Texte intégralKhan, Fareed Ashraf. « Some aspects of convection as well as graphite and carbide formations during casting ». Licentiate thesis, KTH, Metallernas gjutning, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-228388.
Texte intégralDet är ett faktum att segringar som uppstår under gjutning påverkar materialegenskaperna hos kolbaserade järnlegeringar; detta utgör motivationen till studien av segringsuppträdandet hos kol och karbidbildande ämnen. Denna avhandling behandlar två olika aspekter inom ramen för detta ämne: påverkan av kylningshastighet och turbulens på kärnbildningen av grafitnoduler i nodulärt gjutjärn samt karbidbildning i kullagerstål och dess påverkan på den efterföljande värmebehandlingen av dessa karbider. Strukturen hos rör till vattenkokare som tillverkats av nodulärt gjutjärn som gjutits med fyllning från botten eller från toppen undersöktes. Prover togs från representativa tvärsnittspositioner från toppen, mitten och botten av de gjutna ämnena. Resultaten visade att användandet av bottenfyllda kokiller gav upphov till större men färre karbider i nedre delen av ämnet, medans användandet av toppfyllda kokiller gav upphov till mindre men fler karbider i nedre delen av ämnet. Variationer av volymfraktionen av grafitnoduler längs tvärsnitten observerades också. Den mest sannolika orsaken till denna variation var skillnaden i kylhastighet i de olika områdena av tvärsnitten. Hos rör tillverkade av det centrala delen av ämnet så var fraktionen grafit lägre, vilket kan bero på en uppkolning av rören. Ett flertal experiment utfördes med varierande kylningshastigheter och olika omrörningstider för att studera inverkan av omrörning av smältan på stelningen av nodulärt gjutjärn. Studier av mikrostrukturen genomfördes med ljusoptisk mikroskopi och svepelektronmikroskopi. Resultaten visade att smältan oxiderades under omrörningen, vilket resulterade i bildandet av oxider. Detta ledde till en ökning av kärnbildningsområden för grafitnoduler, vilket ledde till en ökning av antalet noduler samt fraktionen av grafit som fälldes ut. Strukturen omvandlades från perlit till ferrit, vilket troligen orsakades av att kol hade diffunderat ut från strukturen. Segringsbeteendet hos hypereutektoida kullagerstål tillverkade genom götgjutning undersöktes också. Effekten av värmebehandling på mikro- och makrosegringar undersöktes i prover tagna från gjutna och värmebehandlade ämnen. Fokus var på att studera strukturen i ämnena samt A-segringar. Dessutom togs prover från ämnen som först värmebehandlats och därefter varmbearbetats. Både mikro- och makroundersökningar av mikrostrukturen utfördes med ljusoptisk mikroskopi och svepelektronmikroskopi. Dessutom så genomfördes kvantitativa sammansättningsbestämningar med energidispersiv röntgenspektroskopi och elektronmikroprobsanalys. Resultaten visade att M3C, M2C och M6C karbider hade fällts ut. Karbidmorfologin i huvuddelen av strukturen skiljde sig från den som återfanns i A-segringar. Samtliga primära karbider i huvuddelen av strukturen hade lösts upp efter 4 timmars värmebehandling vid 1200oC.
QC 20180523
Peer, Andrea J. « Performance Testing and Modeling of Ultra-High Strength Steel and Complex Stack-Up Resistance Spot Welds ». The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1493403670252986.
Texte intégralStritch, Kyle B. « Microstructural Evolution and Mechanical Properties in Simulated Heat Affected Zone Regions of Grade 91 Steel Welds ». The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471444438.
Texte intégralKusunoki, Takuya. « Quantification of the Tempering Response in Type 410 Steel Welds ». The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1607011624665895.
Texte intégralSIVO, ANTONIO. « On the Laser Powder Bed Fusion based processing route for hard to weld Nickel Superalloys ». Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2971609.
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