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Дисертації з теми "Corrosion – Effets du dioxyde de soufre"
Zerouki, Alain. "Corrosion de revêtements d'alliages M-CrAlY par le soufre vapeur et le dioxyde de soufreTexte imprimé." Dijon, 1985. http://www.theses.fr/1985DIJOS043.
Повний текст джерелаMorel, Jean-Michel. "Rôle de la structuration des patines formées sur acier autopatinable vis-àvis de la résistance à la corrosion atmosphérique : Influence de la diminution des teneurs en SO2 dans les atmosphères post-industrielles." Thesis, La Rochelle, 2022. http://www.theses.fr/2022LAROS015.
Повний текст джерелаThe aim of this work was to determine the extent to which the drastic reduction in SO2 levels in postindustrial atmospheres affected the corrosion kinetics of weathering steels as well as their morphology, chemical composition and crystallographic structure. The experiments covered a wide spectrum of steel grades, exposure time and conditions of formation of these patinas. The structuring of the patinas has been studied with in particular the implementation of cryogenic fractography as well as the kinetics corrosion monitoring. Corrosion products formed on weathering steels or on conventional steels have a similar structuration consisting of a layer of laminated lepidocrocite over denser and more protective corrosion products, usually goethite. These products extend up to forming a relatively homogeneous protective layer. The analysis of the defects of the patinas suggests a very close relation between their density and the corrosion rate. Alloying elements would then play a role in reducing these defects but the exact mechanisms remain to be established. All these results have led to questioning the parameters of the predictive corrosion resistance model of the ISO 9223 standard because they are not adapted to environments with very low level of SO2. They also made it possible to propose an alternative and on destructive method of monitoring the corrosion’s performance of low-alloy steels, this family encompassing so-called weathering steels
Dawi, Kamel. "Corrosion à haute température de fontes GS à matrice ferritique et austénitique sous atmosphères complexes." Compiègne, 2009. http://www.theses.fr/2009COMP1803.
Повний текст джерелаDjoudjou, Rachid. "Influence des espèces soufrées sur la corrosion par piqûre des aciers inoxydables et sur son inhibition par les ions molybdate." Compiègne, 1993. http://www.theses.fr/1993COMPD598.
Повний текст джерелаGosselin, Catherine. "Inhalation d'anhydride sulfureux et pathologie respiratoire : à propos d'un cas d'inhalation aiguë accidentelle survenu en milieu de travail (CHR de Caen)." Caen, 1990. http://www.theses.fr/1990CAEN3103.
Повний текст джерелаJouen, Samuel. "Corrosion du cuivre, du nickel et de l'étain au contact de polluants atmosphériques." Rouen, 2000. http://www.theses.fr/2000ROUES070.
Повний текст джерелаThis study gives on the one hand, an overall view of the copper, nickel and tin corrosion exposed in various outdoor atmospheres, on the other hand, some considerations on the setting of the technical device allowing normalised indoor corrosion tests with four pollutant gas (SO₂, NO₂, H₂S et Cl₂). A multi-analytical approach was chosen to characterise the corrosion products, combining physical and chemical techniques, that give qualitative and quantitative informations. Corrosion of copper is uniform and the corrosion layer consists of a complex mixture rich in copper (I) oxide and copper sulfates. With the nickel, we are able to show a pitting corrosion mechanism, in which there is formation of nickel sulfates and nickel chlorines corrosion products in the pit and a nickel carbonate all around. Tin corrosion is heterogeneous with formation of clusters composed of several corrosion products, in which an amorphous stannic hydrated oxide is the main phase. Atmospheric precipitations have an essential impact on the copper corrosion rate, and more again on the nickel one. Ozone concentration in air appears also as an essential parameter, which must be taken into account to understand the corrosion mechanism. As part of the accelerated corrosion test in laboratory, we have shown a catalytic effect of the stainless steel exposure chamber, on the chemical reactions between gas. The effect of the concentration ratio H₂S/Cl₂ in copper, nickel and tin corrosion have been also studied
Mathieu, Christian. "Corrosion à haute température d'un alliage Ni20Cr et d'un superalliage Ni15Cr8Fe par le dioxyde de soufre : étude de l'influence des contraintes externes." Dijon, 1991. http://www.theses.fr/1991DIJOS017.
Повний текст джерелаDuhail, Céline. "La pourriture du raisin : facteurs de sélection des micro-organismes dominants et incidences œnologiques." Bordeaux 2, 1999. http://www.theses.fr/1999BOR20670.
Повний текст джерелаElbouazzaoui, Sanaâ. "Effets du soufre sur des catalyseurs de type "piège à NOx" à base de baryum et (ou) d'oxydes réductibles." Poitiers, 2005. http://www.theses.fr/2005POIT2256.
Повний текст джерелаNyassi, Abdelhamid. "Contribution à l'étude du comportement d'un alliage ferritique dans des milieux gazeux complexes (oxydant-sulfurant) à haute température." Dijon, 1985. http://www.theses.fr/1985DIJOS030.
Повний текст джерелаЧастини книг з теми "Corrosion – Effets du dioxyde de soufre"
Malka, P., D. Contour-Ansel, P. Louguet, and J. Bonte. "Effets d’une pollution de l’atmosphère par l’Ozone et le Dioxyde de Soufre sur la croissance, la conductance stomatique et la teneur en composés phénoliques de 3 clones d’épicéas en chambre à ciel ouvert." In Air Pollution and Ecosystems, 717–22. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-4003-1_86.
Повний текст джерела"Evidence of corrosion in home piping system began to appear in fixture stains and metallic taste. In 1985, the Federal Government did surveys of heavy metals in water supplies, focusing on lead in drinking water and its effect on children. The prevalence of this metal resulted in the banning of lead from solder used in plumbing. In 1988, and in 1989, regulations reduced the safe limit of lead in water from 50^gm/L to 5 μgm/L, with an action level at 15pgm/L in a first draw sample. At the same time the E.P.A. provided guidance documents to schools and day care centers to help reduce children's lead exposure in water supplies. Grants were made available to states to be used for spreading the knowledge about this danger. However, the Federal regulations applied only to public water supplies, which were defined as systems serving 25 or more people. But private wells serving family homes, many containing children, were not included. Children could be assured of regulated water supplies in school, but not at home. Aware that lead was a problem in paint chips, Connecticut required that pediatricians test for traces of lead in children at age two. The Federal act recognized that the primary source of lead in water supplies came through home plumbing systems stemming from the corrosion by the water. This was remedied by requiring public water supplies to prevent corrosion, usually by adding alkalinity to the water. Here again, private wells not included in the educational phase of the program were also not included in the remedies. While these activities with water supplies were occurring, a phenomenon of a different sort was originating in states hundreds of miles away from Southeastern Connecticut. Throughout the Midwest and into West Virginia and Kentucky, electric power generators were erecting tall stacks to disperse sulfur dioxide gasses high into the atmosphere. The gas came mostly from the burning of high sulfur coal mined nearby. The Federal air pollution standards for ambient air were being met in the Midwest by the use of these tall stacks. In the eastern states, restrictions on sulfur content of fuels, mostly petroleum based, were used to meet the ambient air standards. By the early 1980's Connecticut eased its restrictions on sulfur content in these fuels from 0.5% to 1% by weight . Still, during the next five years the sulfur dioxide level actually decreased. However, in 1986, other data collected by the State showed that 32% of the rain storms had an acidic pH of 4.0 or below [ 1 ]. The lowest pH ’ s recorded that year were 3.6. The State also reported that from 1985 to 1996 there had been a further decrease in ambient sulfur dioxide levels [ 2 ]." In Hazardous and Industrial Waste Proceedings, 30th Mid-Atlantic Conference, 860. CRC Press, 2014. http://dx.doi.org/10.1201/9781498709453-139.
Повний текст джерелаТези доповідей конференцій з теми "Corrosion – Effets du dioxyde de soufre"
Gui, Feng, Ramgopal Thodla, Ken Evans, Carlos Joia, and Ilson Palmieri Baptista. "Corrosion Fatigue Performance of Duplex 2507 for Riser Applications." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20609.
Повний текст джерелаShitamoto, Hidenori, Masayuki Sagara, Hisashi Amaya, Nobuyuki Hisamune, Daisuke Motoya, and Yuuki Watatani. "Effect of Reeling Simulation on the Mechanical Properties of New Duplex Stainless Steel for Line Pipe." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23694.
Повний текст джерелаBagul, Tejeshkumar, Kanan Pujara, Jimil Shah, Oluwaseun Awe, and Dereje Agonafer. "Computational Study of Behavior of Gas Absorption in Data Center Equipment and its Effects on the Rate of Corrosion/Contamination." In ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems collocated with the ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ipack2015-48049.
Повний текст джерелаKakadjian, Sarkis, Keith Korhonen, Marvin Solomon, Jarrett Kitchen, Amanuel Gebrekirstos, Jesse Risner, and Otman Algadi. "Effective Water Treatment in the Permian and Marcellus Shales to Mitigate Surface Equipment Failures." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210250-ms.
Повний текст джерелаZecevic, S., E. M. Patton, and P. Parhami. "Direct Carbon Fuel Cell With Hydroxide Electrolyte: Cell Performance During Initial Stage of a Long Term Operation." In ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2005. http://dx.doi.org/10.1115/fuelcell2005-74169.
Повний текст джерелаHelmy, Samy A., Judith K. Guy-Caffey, Leroy J. Detiveaux, Sabine C. Zeilinger, Mike D. Barry, and Cliff Aaron Corbell. "The Successful Development, Validation, and First Use of an Innovative Zinc-Free, High-Density Completion Fluid for Deepwater." In SPE/IADC International Drilling Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/204095-ms.
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