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Dissertations / Theses on the topic 'Hydrogen embrittlement of metals'

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Published: 4 June 2021
Last updated: 3 February 2022

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1

Stroe, MIOARA ELVIRA. "Hydrogen embrittlement of ferrous materials." Doctoral thesis, Universite Libre de Bruxelles, 2006. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210889.

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This work deals with the damage due to the simultaneous presence of hydrogen in atomic form and stress – straining.<p>The aim of this work is twofold: to better understand the hydrogen embrittlement mechanisms and to translate the acquired knowledge into a more appropriate qualification test. <p>The phenomena of hydrogen entry and transport inside the metals, together with the different types of damages due to the presence of hydrogen, are presented.<p>The analysis of the most important models proposed up to now for hydrogen embrittlement (HE) indicated that the slow dynamic plastic straining
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2

Hsieh, Jang-Hsing. "Hydrogen embrittlement of cold worked plain carbon steel." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/12016.

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3

Jothi, Sathiskumar. "Multiscale modelling and experimentation of hydrogen embrittlement in aerospace materials." Thesis, Swansea University, 2015. https://cronfa.swan.ac.uk/Record/cronfa42212.

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Pulse plated nickel and nickel based superalloys have been used extensively in the Ariane 5 space launcher engines. Large structural Ariane 5 space launcher engine components such as combustion chambers with complex microstructures have usually been manufactured using electrodeposited nickel with advanced pulse plating techniques with smaller parts made of nickel based superalloys joined or welded to the structure to fabricate Ariane 5 space launcher engines. One of the major challenges in manufacturing these space launcher components using newly developed materials is a fundamental understand
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4

Dowson, A. L. "Some aspects of hydrogen absorption and hydrogen embrittlement in alpha titanium." Thesis, University of Newcastle Upon Tyne, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382542.

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5

Buntain, Ryan John. "Effect of Microstructure on Hydrogen Assisted Cracking in Dissimilar Welds of Low Alloy Steel Pipes Joined with Nickel Based Filler Metals." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1577785066479763.

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6

Brahimi, Salim. "Effect of surface processing variables on hydrogen embrittlement of steel fasteners." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112560.

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Incremental step load testing was used in accordance with ASTM F1940 to rank a number coating processes used in the fastener industry for their propensity to cause internal hydrogen embrittlement. The results showed that coating permeability has a first order effect, while the quantity of hydrogen introduced by the process has a second order effect. Pure zinc electroplating processes, alkaline and acid, were found to be the most embrittling, owing to the low permeability of zinc. The least embrittling processes were zinc-nickel, alkaline and acid, owing to the high permeability of Zn-Ni coatin
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7

Uehara, André Yugou. "Fragilização por hidrogênio de parafusos cementados." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265279.

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Orientador: Itamar Ferreira<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-18T17:02:04Z (GMT). No. of bitstreams: 1 Uehara_AndreYugou_M.pdf: 4445631 bytes, checksum: ba69e40eee3a8de5233ab826f19564d7 (MD5) Previous issue date: 2011<br>Resumo: Este trabalho tem por objetivo investigar a etapa de decapagem ácida e os processos de desidrogenação e retrabalho realizados durante a zincagem de parafusos quanto à fragilização por hidrogênio. Parafusos fabricados conforme a norma JIS B 1127 (1995), cementados, de
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8

Carvalho, Ícaro Zanetti de. "Fragilização por hidrogênio nos aços AISI 4340 (AMS 6414K e AMS 6415S) temperados e revenidos." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263642.

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Orientadores: Célia Marina de Alvarenga Freire, Itamar Ferreira<br>Dissertação (mestrado - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-20T02:38:33Z (GMT). No. of bitstreams: 1 Carvalho_IcaroZanettide_M.pdf: 13083038 bytes, checksum: c152edb400a89f8aecfa16c8073e6488 (MD5) Previous issue date: 2012<br>Resumo: O fenômeno da fragilização por hidrogênio no aço AISI 4340 foi investigado devido ao fato do mesmo ser um aço baixa liga de alta resistência bastante suscetível a este fenômeno. A análise foi feita por meio do ensaio de tenaci
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9

Nigro, Claudio F. "Phase field modeling of flaw-induced hydride precipitation kinetics in metals." Licentiate thesis, Malmö högskola, Institutionen för materialvetenskap och tillämpad matematik (MTM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-7787.

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Hydrogen embrittlement can manifest itself as hydride formation in structures when in contact with hydrogen-rich environments, e.g. in space and nuclear power applications. To supplant experimentation, modeling of such phenomena is beneficial to make life prediction reduce cost and increase the understanding. In the present work, two different approaches based on phase field theory are employed to study the precipitation kinetics of a second phase in a metal, with a special focus on the application of hydride formation in hexagonal close-packed metals. For both presented models, a single compo
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10

Fraga, Francisco Edson Nogueira. "Variaveis de influencia do teste G-BOP." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263151.

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Orientador: Roseana da Exaltação Trevisan<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-05T03:36:29Z (GMT). No. of bitstreams: 1 Fraga_FranciscoEdsonNogueira_M.pdf: 7668507 bytes, checksum: 806c3c771652dfe2aa90373e2fca42ba (MD5) Previous issue date: 2005<br>Resumo: Trinca induzida por hidrogênio é um dos defeitos mais graves que ocorrem em juntas soldadas de diversos aços. Esta falha mecânica ocorre com bastante freqüência na zona afetada pelo calor (ZAC) destes materiais. Com o desenvolvimento de novos
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11

Huang, Chuanshi. "NUMERICAL MODELING OF HYDROGEN EMBRITTLEMENT." University of Akron / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=akron1588597670254056.

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12

Hutchings, D. "Hydrogen embrittlement of duplex stainless steel." Thesis, University of Manchester, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.631722.

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Duplex stainless steels (DSS's) are frequently used in oil and gas production and are subsequently subjected to cathodic protection. There is now growing concern about the cathodic evolution of hydrogen produced from this protection system, which may diffuse into the alloy and cause an embrittled condition. DSS's have a microstructure that is a mixture of austenite and ferrite and combines the advantages of these grades, whilst minimising their deficiences. In this research, Zeron 100 DSS was studied in six conditions to investigate the effects of hydrogen embrittlement (HE) on the various str
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13

Buckley, J. R. "Hydrogen embrittlement of austenitic stainless steel." Thesis, University of Newcastle Upon Tyne, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315550.

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14

Butler, J. J. F. "Hydrogen embrittlement of austenitic stainless steel." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374127.

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15

Arditti, David Louis. "The hydrogen embrittlement of titanium alloys." Thesis, Imperial College London, 1994. http://hdl.handle.net/10044/1/11438.

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16

Rivet, Frederic C. "Hydrogen embrittlement of Aluminum-Lithium alloys." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/41599.

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The objective of this work is to study the effects of dissolved hydrogen on the mechanical properties of aluminum-lithium alloys: 2090, 2091, and Weldalite 049, and to compare with the effects on aluminum-copper 2219 alloy. Prior to mechanical testing, aging studies were performed for 2090 and 2219 using microhardness Vickers to determine the peak aged condition required by NASA. The Charpy tests are part of this study designed to investigate the effects of temperature and notch orientation on fracture behavior. Disk rupture tests were used with various gases (hydrogen and nitrogen) and three
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17

Clegg, Richard Edward. "Liquid-metal embrittlement of metals and alloys." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260608.

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18

Alsarraf, Jalal. "Hydrogen embrittlement susceptibility of super duplex stainless steels." Thesis, Cranfield University, 2010. http://dspace.lib.cranfield.ac.uk/handle/1826/4562.

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This thesis describes the metallurgical and environmental factors that influence hydrogen embrittlement of super duplex stainless steels and presents a model to predict the rate at which embrittlement occurs. Super duplex stainless steel has an austenite and ferrite microstructure with an average fraction of each phase of approximately 50%. An investigation was carried out on the metallurgical and environmental factors that influence hydrogen embrittlement of super duplex stainless steels. Tensile specimens of super duplex stainless steel were pre-charged with hydrogen for two weeks in 3.5% Na
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19

Cisloiu, Roxana. "Computational modeling of hydrogen embrittlement of iron aluminides." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=1910.

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Thesis (M.S.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains vii, 93 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 71-75).
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20

Barnoush, Afrooz. "Hydrogen embrittlement, revisited by in situ electrochemical nanoindentation." Aachen Shaker, 2007. http://d-nb.info/992479851/04.

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21

Boran, Edward John. "Hydrogen embrittlement of an Al-4.5Zn-2.5Mg alloy." Thesis, London Metropolitan University, 1989. http://repository.londonmet.ac.uk/3438/.

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Experimental results are presented here for a 7017-T651 AlZnmg alloy where stress corrosion crack growth data on compact tension and double cantilever beam specimens has been obtained in distilled water, water saturated air vapour and aqueous chloride environments over a range of temperatures. The results, including fracture surface examination, are interpreted as indicating that a hydrogen embrittlement mechanism is operative whereby hydrogen, generated by a corrosion reaction, embrittles the alloy. Activation energy determinations have been made for stress corrosion crack growth at the free
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22

Figueroa-Gordon, Douglas J. "Hydrogen re-embrittlement susceptibility of ultra high strength steels." Thesis, Cranfield University, 2005. http://dspace.lib.cranfield.ac.uk/handle/1826/1433.

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300M ultra high strength steel has been widely used for over forty years as a structural material in aerospace applications where a high strength is required. These parts are generally protected from corrosion by electroplated cadmium sacrificial coatings. However, there are concerns over this coating material due to its high toxicity and alternative coatings including Zinc-14%Nickel and SermeTel®1140/962 have been considered. It is known that applying electrodeposited coatings causes atomic hydrogen to be absorbed by the steel substrate producing delayed failure by direct hydrogen embrittleme
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23

Nissley, 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.

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24

Menzies, Luke. "Modelling helium embrittlement in iron based metals under DEMO conditions." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/modelling-helium-embrittlement-in-iron-based-metals-under-demo-conditions(476ff1e5-24c7-4de5-920a-524042094253).html.

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Steel components within fusion reactors will be subject to high transmutation rates due to high energy neutrons. In iron based alloys such as steels, high amounts of helium accumulate through transmutation. This leads to helium embrittlement through helium accumulating on the grain boundaries of metal. Worst case scenario predictions were made for DEMO, estimating that for a grain size of 5 micro-meters, embrittlement could happen within 2 years of the blanket region of DEMO. This thesis elaborates on previous worst case scenario calculations by including inter-granular tapping mechanisms, wit
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25

Nissley, Nathan E. "Intermediate temperature grain boundary embrittlement in nickel-base weld metals." The Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=osu1156949345.

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26

Wheeler, Dean Alan. "Stable crack growth during the liquid metal embrittlement of aluminum by mercury /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487330761217423.

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27

El-Yazgi, Abdullatif Abdallah. "The effect of hydrogen on the mechanical behaviour of duplex stainless steel." Thesis, University of Newcastle Upon Tyne, 1995. http://hdl.handle.net/10443/719.

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Duplex stainless steels are commonly used in environments that are expected to produce hydrogen i. e. in sour environments and sea water applications, often under cathodic protection. Under these conditions there is a concern about their susceptibility to hydrogen embrittlement. The effect of hydrogen, both external and internal, on the mechanical properties and the fracture characteristics of duplex stainless steels Type 2205 and 2507 have been studied by slow strain rate techniques using smooth tensile specimens. Specimens were strained to failure in air after high pressure hydrogen thermal
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28

Haglund, Adam. "Reduction of hydrogen embrittlement on Electrogalvanized Ultra High Strength Steels." Thesis, Uppsala universitet, Institutionen för kemi - Ångström, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-236603.

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Ultra-high strength steels is known to be susceptible for hydrogen embrittlement at very low concentrations of hydrogen. In this thesis three methods to prevent or reduce the hydrogen embrittlement in martensitic steel, with tensile strength of 1500 MPa, were studied. First, a barrier layer of aluminium designed to prevent hydrogen to enter the steel, which were deposited by vacuum evaporation. Second, a decarburization process of the steels surface designed to mitigate the induced stresses from cutting. Last, a hydrogen relief treatment at 150°C for 11 days and 200°C for 4 days, to reduce the
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29

Barnoush, Afrooz [Verfasser]. "Hydrogen embrittlement, revisited by in situ electrochemical nanoindentation / Afrooz Barnoush." Aachen : Shaker, 2009. http://d-nb.info/1161310207/34.

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30

Liang, Xingzhong. "Microstructure evolution and hydrogen embrittlement in super duplex stainless steels." Thesis, University of Leicester, 2018. http://hdl.handle.net/2381/42527.

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Super duplex stainless steel has a wide range of applications in chemical transport and processing facilities, especially in subsea oil and gas pipelines. A desirable combination of corrosion resistance and mechanical properties can be delivered by a balanced duplex microstructure. However, the microstructure of steel can be altered during processing, which can result in degradation of mechanical properties and corrosion resistance. In offshore environment, cathodic protection is widely used to improve corrosion resistance of gas and oil transportation pipelines. However, the application of ca
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31

Kilgallon, P. J. "The effect of sulphate reducing bacteria on the hydrogen absorption of cathodically protected high strength low alloy steel." Thesis, Cranfield University, 1994. http://dspace.lib.cranfield.ac.uk/handle/1826/7253.

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The hydrogen embrittlement of two HSLA steels was studied in conditions typical of the marine environment. Double cantilever beam specimens, heat treated to produce the microstructure in the heat affected zone of a weld, were tested in seawater containing sulphate reducing bacteria (SRB) over a range of cathodic protection (CP) potentials and the threshold stress intensities ([Threshold Stress Intensity]) were recorded. The hydrogen concentration absorbed by the steel ([Surface Hydrogen Concentration]) was measured and shown to be higher at more negative CP potentials and significantly increas
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32

Fernandes, Paulo Jorge Luso. "Fatigue and fracture of metals in liquid-metal environments." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337963.

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33

Alexander, Matthew S. "The influence of aggressive marine environments on the hydrogen embrittlement and hydrogen uptake of steel." Thesis, University of Manchester, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488077.

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34

Bromley, Darren Michael. "Hydrogen embrittlement testing of austenitic stainless steels SUS 316 and 316L." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/925.

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The imminent emergence of the hydrogen fuel industry has resulted in an urgent mandate for very specific material testing. Although storage of pressurized hydrogen gas is both practical and attainable, demands for increasing storage pressures (currently around 70 MPa) continue to present unexpected material compatibility issues. It is imperative that materials commonly used in gaseous hydrogen service are properly tested for hydrogen embrittlement resistance. To assess material behavior in a pressurized hydrogen environment, procedures were designed to test materials for susceptibility to h
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35

Möhle, Milena [Verfasser]. "Numerical investigation on hydrogen embrittlement of metallic pipeline structures / Milena Möhle." Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2018. http://d-nb.info/1167440587/34.

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36

Chan, S. L. I. "Hydrogen embrittlement susceptibility as a function of carbide distribution in steels." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354196.

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37

Dias, Joachim Octave Valentin. "The first high-strength bainitic steel designed for hydrogen embrittlement resistance." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/273831.

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The phenomenon of hydrogen embrittlement in steel has been known for over 150 years. Hydrogen-resistant alloys have been developed to mitigate this effect and three types of alloys with optimised structures have been enhanced over the years: nickel alloys, stainless steels, and quenched and tempered martensitic low alloy steels. Nevertheless, those alloys are limited in terms of strength and ductility. The aim of the work presented in this thesis was to design bainitic alloys with hydrogen embrittlement resistance, and with a better combination of strength and ductility than conventional alloy
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38

Chattoraj, Indranil. "The effect of shot peening on hydrogen entry into and hydrogen embrittlement of AISI 4130 steels /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487687115924379.

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39

Martiniano, Guilherme Antonelli. "Desenvolvimento de um equipamento para avaliação da susceptibilidade à fragilização por hidrogênio." Universidade Federal de Uberlândia, 2016. https://repositorio.ufu.br/handle/123456789/19794.

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FAPEMIG - Fundação de Amparo a Pesquisa do Estado de Minas Gerais<br>A fragilização por hidrogênio tem sido um problema constante em diferentes setores da indústria. Por ser o menor átomo existente, o hidrogênio difunde-se na microestrutura dos materiais metálicos, inserindo tensões mecânicas internas que podem, eventualmente, levar a uma falha catastrófica. Atualmente, os métodos mais comuns existentes para analisar este fenômeno são lentos e caros, configurando-se assim a necessidade de desenvolver um método de ensaio que não possua tais desvantagens. No presente trabalho, apresenta-se o des
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40

Evans, Juliet M. "The effect of nickel plating on hydrogen embrittlement of high strength steel." Thesis, Cranfield University, 1992. http://dspace.lib.cranfield.ac.uk/handle/1826/3238.

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The microstructure of high strength steel is susceptible to delayed failure caused by the absorption of hydrogen produced either during cathodic charging or electroplating. When 0.8%C and AISI 4340 steel are subjected to constant load testing, a wide range of failure times is observed. By applying Weibull statistics small changes in experimental parameters such as heat-treatment are detected readily and are explained in the terms of hydrogen trapping at microstructural defects. During the electroplating of steel in a double-cell, quantitative measurements are made of the amount of hydrogen per
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41

Dieudonné, Thomas. "Mécanismes d'absorption de l'hydrogène en milieux aqueux dans des aciers austénitiques Fe-Mn-C : conséquences sur l'endommagement." Thesis, Evry-Val d'Essonne, 2012. http://www.theses.fr/2012EVRY0011.

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Dans un contexte industriel en évolution permanente, les aciers austénitiques Fe-Mn-C sont développés afin d’obtenir une résistance mécanique élevée tout en conservant une ductilité considérable. Cependant, ces aciers présentent une sensibilité à différentes formes d'endommagement par l'hydrogène, notamment la corrosion sous contrainte. L'objectif de cette étude est de caractériser l'influence de la composition chimique et de l'état microstructural de ces alliages sur leur sensibilité aux phénomènes de fragilisation par l’hydrogène (FPH), lorsqu’ils sont soumis à des phénomènes de corrosion aq
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42

Gingell, Andrew Donald Brian. "Corrosion fatigue crack growth and hydrogen embrittlement in high strength aluminium alloy 7150." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337942.

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43

Allen, Quentin Scott. "Microstructural Evaluation of Hydrogen Embrittlement and Successive Recovery in Advanced High Strength Steel." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6617.

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Advanced high strength steels (AHSS) have high susceptibility to hydrogen embrittlement, and are often exposed to hydrogen environments in processing. In order to study the embrittlement and recovery of steel, tensile tests were conducted on two different types of AHSS over time after hydrogen charging. Concentration measurements and hydrogen microprinting were carried out at the same time steps to visualize the hydrogen behavior during recovery. The diffusible hydrogen concentration was found to decay exponentially, and equations were found for the two types of steel. Hydrogen concentration d
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44

Hanson, John Paul Ph D. Massachusetts Institute of Technology. "The role of grain boundary character in hydrogen embrittlement of nickel-iron superalloys." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/112382.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 2016.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 183-196).<br>Hydrogen embrittlement of engineering alloys is characterized by a loss of ductility and unpredictable failure. These failures affect numerous industries, including nuclear power, oil and gas exploration, and hydrogen transp
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45

Saleem, Baber. "Microstructure of CRA bolts used subsea in relation to resistance to hydrogen embrittlement." Thesis, University of Leicester, 2017. http://hdl.handle.net/2381/40291.

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The physical characteristics of hydrogen embrittlement failure of subsea bolts operating under CP are surface cracks at thread and shank area and for some cases they are completely ruptured from the shank area. The metallurgical reason for failure already reported by researchers (including for Inconel718) was the interaction of hydrogen atoms with grain boundary precipitates (Ni3Nb δ) resulting in hydrogen assisted intergranular cracking. Inconel 718 was received as rectangular block (RB) and bolts (Φ28mm). They were heat treated as per API 6A718 specifications. The yield strength and vickers
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46

Chou, Kuo-chin. "Hydrogen diffusion, trapping and crack growth in two low carbon steels with different contents of sulfur /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu148758461216328.

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47

Brown, Michael. "On the hydrogen embrittlement of oil and gas grade alloy 718 and alloy 945X." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/on-the-hydrogen-embrittlement-of-oil-and-gas-grade-alloy-718-and-alloy-945x(e0831365-5b30-48e1-ad54-6b03aa3a6763).html.

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Hydrogen embrittlement is a mechanism by which hydrogen enters a metal, causing a loss in strength and ductility. This phenomenon is of great concern to the oil and gas industry as deep-sea wells operate in high temperature, highly acidic and high stress conditions. Nickel-based superalloys are ideal for use in such environments due to their high strength and exceptional resistance to both corrosion and hydrogen embrittlement. Alloy 945X is a newly developed nickel-based superalloy that has been specifically designed for use in downhole applications. This thesis compares the performance of hyd
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48

Nibur, Kevin Andrew. "Nanoindentation slip steps and hydrogen embritlement." Online access for everyone, 2005. http://www.dissertations.wsu.edu/Dissertations/Summer2005/k%5Fnibur%5F071305.pdf.

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49

Needham, William Donald. "Stress corrosion cracking and hydrogen embrittlement of thick section high strength low alloy steel." Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/10945/22123.

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An experimental study was conducted to evaluate the corrosion performance of weldments of a high strength low alloy(HSLA) steel in a simulated seawater environment. This steel, designated HSLA80, was developed by the United States Navy for use in ship structural applications. Stress corrosion CRACKING(SCC) and hydrogen embrittlement(HEM) were investigated by conducting 42 Wedge-Opening load(WOL) tests as a function of stress intensity and corrosion potential and 33 Slow Strain Rate(SSR) tests as a function of strain rate and corrosion potential. The corrosion potentials were chosen to simulate
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Barritt, Andrew Stephen. "Detection of hydrogen embrittlement in steel and steel alloys using methods of neutron radiography." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/32597.

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