Academic literature on the topic 'Medium manganèse'

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Journal articles on the topic "Medium manganèse"

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Новохацкая, А. А., та Г. Я. Акимов. "Роль избыточного марганца в формировании структуры и транспортных свойств манганита (Nd-=SUB=-0.67-=/SUB=-Sr-=SUB=-0.33-=/SUB=-)-=SUB=-1-x-=/SUB=-Mn-=SUB=-1+x-=/SUB=-О-=SUB=-3-=/SUB=- (x=0; 0.2), спеченного при 1273-1473 K". Физика твердого тела 60, № 7 (2018): 1378. http://dx.doi.org/10.21883/ftt.2018.07.46127.009.

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AbstractThe Nd_0.67Sr_0.33MnO_3 manganite is a material promising for application as a cathode for medium-temperature solid oxide fuel elements. A high electrical conductivity of such a cathode is the parameter determining the efficiency of the operation of a fuel element. In this report, the effect of influence of excess manganese on the structure and the conductivity of manganite ceramics with compositions (Nd_0.67Sr_0.33)_1– x Mn_1 + x O_3± Δ ( x = 0, 0.2) sintered at temperatures 1273–1673 K is presented for the first time. The existence of 20% excess manganese in the initial manganite pow
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Francisco Sánchez Viesca and Reina Gómez Gómez. "A complete and sustained organic/inorganic reaction mechanism of Baeyer’s test." World Journal of Chemical and Pharmaceutical Sciences 4, no. 2 (2024): 001–5. http://dx.doi.org/10.53346/wjcps.2024.4.2.0023.

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The Baeyer’s test for unsaturation has been used in Qualitative Organic Analysis for a long time. However, if an alkaline reagent is used, compounds having an active hydrogen (carbon acids) also give a positive test with potassium permanganate, detracting the test for unsaturation. The first steps of the reaction sequence have been described but the next stages are missing. These are very important because they involve the formation mode of the observed end product, brown manganese dioxide. In this communication, a complete and sustained reaction mechanism is provided for both reaction mediums
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Wang Yanjie, 王艳杰, 赵琳 Zhao Lin, 彭云 Peng Yun та 曹洋 Cao Yang. "中锰汽车钢激光焊接焊缝组织与韧性". Chinese Journal of Lasers 49, № 8 (2022): 0802021. http://dx.doi.org/10.3788/cjl202249.0802021.

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De Moor, Emmanuel, Alexandra Glover, Josh Mueller, John G. Speer, and David K. Matlock. "Double Soaking of Medium Manganese Steels." Materials Science Forum 1105 (November 29, 2023): 207–12. http://dx.doi.org/10.4028/p-wh9qva.

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Double soaking (DS) has been proposed as an alternate processing route for medium manganese steels. DS consists of soaking in the intercritical annealing region to stimulate manganese enrichment of austenite by depletion of ferrite followed by secondary soaking at a higher temperature and cooling to room temperature to obtain a martensite/austenite microstructure. DS is different from more traditional medium manganese heat treating which usually involves a single soaking step in the intercritical region to generate a ferrite/austenite microstructure. DS has been shown effective at generating a
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Mohapatra, B. K., and B. R. Nayak. "Characteristics of Manganite (?-MnOOH) in Manganese-Rich Gangpur Group of Rocks, Orissa." Journal Geological Society of India 51, no. 4 (1998): 509–16. http://dx.doi.org/10.17491/jgsi/1998/510409.

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Abstract Manganite ?-MnOOH, in the manganese-rich rocks of Precambrian Gangpur Group, Sundargarh district, Orissa, shows dissimilar fabrics and belongs to three generations but has more or less similar chemical composition. It occurs as patchy inclusions, accicular crystallites, egg-shaped micro-nodules, medium to coarse-grained mosaics, vein and fissure fillings and as wedge-shaped linings. The manganite is either formed froin Mn-oxide (jacobsite and vredenburgite) phases through retrogressive metamorphic transformation (Ma1) or generated through pseudomorphic replacement of Mn-sillicate (rho
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Chakraborty, D., and T. K. Baidya. "Multi-Phase Manganese Mineralization in the Noamundi Synclinorium, East Indian Shield." Energy and Earth Science 3, no. 1 (2020): p26. http://dx.doi.org/10.22158/ees.v3n1p26.

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Manganese mineralization associated with phyllites in and around Joda, Odisha belongs to the Iron Ore Group of Noamundi basin and is a part of Jamda-Koira belt of East Indian Shield. The present study area comprises low to medium grade tectonites containing economic resources of both iron and manganese. Present study is concentrated on Manganese mineralization. Field study and petro-mineralogical observations reveal syngenetic character of manganese ores comprising lowT higher oxides viz. pyrolusite, cryptomelane, manganite as major Mn-minerals along with highT lower oxides viz. jacobsite, bix
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Al-Saif, Adel M., Rasha S. Abdel-Hak, Mohamed M. S. Saleh, Mohammed H. Farouk, and Shimaa R. Hamed. "Green-Nano Manganese and Its Impact on the Growth, Yield, and Fruit Properties of Flame Seedless Grapes." Agronomy 14, no. 7 (2024): 1464. http://dx.doi.org/10.3390/agronomy14071464.

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The present work aimed to evaluate green-nano manganese produced at the Microbial Biotechnology Department, National Research Centre, Egypt, and assess its impact on the growth, yield, and fruit properties of grapevines. To this end, two experiments were conducted. The first was microbiological, where several incorporation strategies were utilized to enrich the yeast with manganese, as follows: (1) manganese was added to the liquid medium (non-growth phase), and (2) manganese was added after 24 h of incubation (growth phase). The results showed that the non-growth phase had a reduced possibili
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Snizhnoi, Hennadii, Volodymyr Sazhnev, Valentyn Snizhnoi, and Anatoliy Mukhachev. "Details of mining beneficiation equipment made of medium manganese wear-resistant steel." IOP Conference Series: Earth and Environmental Science 1348, no. 1 (2024): 012027. http://dx.doi.org/10.1088/1755-1315/1348/1/012027.

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Abstract For mining and beneficiation equipment, medium-manganese steel for the production of fast-wearing replaceable parts is proposed. The object of research was the effect of phosphorus on the physical and mechanical properties of austenitic manganese steels with a manganese concentration within the standard for steel 110G13L and below the regulated lower level. Phosphorus more significantly reduces impact toughness, relative elongation and relative narrowing in steels with a lower manganese content than in classic Hadfield steel. In steels with a reduced manganese content, phosphorus has
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Karoblis, Dovydas, Aleksej Zarkov, Tomas Murauskas, and Aivaras Kareiva. "Molten Salt Synthesis of Micro-Sized Hexagonally Shaped REMnO3 (RE = Y, Er, Tm, Yb)." Inorganics 11, no. 5 (2023): 178. http://dx.doi.org/10.3390/inorganics11050178.

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Yttrium manganite (YMnO3) is a compound belonging to the hexagonal rare earth manganites family, which demonstrates multiferroic properties. This material can be prepared by several synthetic approaches, with the most common one being the solid-state synthesis. In this work, we show a possibility of preparing this material via molten salt synthesis using the NaCl-KCl mixture as the reaction medium and yttrium and manganese nitrates as the starting materials. We demonstrate that, by varying the reaction temperature and the nitrates-to-chlorides ratio, it is feasible to synthesize hexagonally sh
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Ito, Atsushi, Akinobu Shibata, and Nobuhiro Tsuji. "Thermomechanical Processing of Medium Manganese Steels." Materials Science Forum 879 (November 2016): 90–94. http://dx.doi.org/10.4028/www.scientific.net/msf.879.90.

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As third generation advanced high strength steels (AHSS) managing both high strength and good ductility/formability, medium manganese steels containing 3-7 wt% Mn have attracted attentions recently. However, the fundamental microstructure evolution during thermomechanical processing and heat treatments in medium-Mn steels is still unclear. In the present study, changes in microstructure and mechanical properties during various heat treatments and thermomechanical processes of 4Mn-0.1%C steel were studied. It was clarified from dilatometric measurements that ferrite transformation in the 4Mn-0.
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Dissertations / Theses on the topic "Medium manganèse"

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Lamari, Mathias. "In situ characterization and modelling of retained austenite thermomechanical stability in Medium Manganese Duplex TRIP-aided steels." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0114.

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Les aciers moyen manganèse appartiennent à la famille des aciers à très haute résistance mécanique (THR) de 3ème génération. Leurs propriétés exceptionnelles sont dues à leurs microstructures duplex particulières, qui contiennent une matrice "ferritique" de taille micrométrique et une quantité importante d'austénite résiduelle. Cette nouvelle génération d'aciers est considérée comme l'une des meilleures possibilités par les constructeurs automobiles pour continuer à améliorer la sécurité des véhicules légers tout en réduisant leur consommation d'énergie et donc leur empreinte environnementale.
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Dutta, Aniruddha [Verfasser], Dierk [Akademischer Betreuer] Raabe, and Sebastian [Akademischer Betreuer] Münstermann. "Deformation behaviour and texture memory effect of multiphase nano-laminate medium manganese steels / Aniruddha Dutta ; Dierk Raabe, Sebastian Münstermann." Aachen : Universitätsbibliothek der RWTH Aachen, 2019. http://d-nb.info/1220082600/34.

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Arlazarov, Artem. "Évolution des microstructures et lien avec les propriétés mécaniques dans les aciers 'Médium Mn'." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0086/document.

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Lors d’un recuit inter-critique d’un acier dit « Medium Manganèse », dont la teneur en Mn est située entre 4 et 12 %, avec une microstructure initiale complètement martensitique, la formation de l’austénite obéit à un mécanisme spécifique qui porte le nom d'ART - « Austenite Reverted Transformation » (transformation inverse de l’austénite). L’objectif de ce travail de thèse était d’étudier et de modéliser les évolutions microstructurales en lien avec les propriétés mécaniques lors d’un recuit ART. Il a été déterminé que la microstructure finale se compose de phases de nature (ferrite, austénit
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Martinez, Juan David Santos. "Estudo comparativo da resistência à corrosão e permeabilidade do hidrogênio de aços API grau X65 baixo manganês em solução B da norma NACE TM-0284." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-15012018-145847/.

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Aços de alta resistência e baixa liga (ARBL) têm sido bastante utilizados na fabricação de tubulações para o transporte de petróleo e gás. Entretanto, o uso destes materiais em meios com elevadas concentrações de H2S, denominados sour, tem resultado em falhas frequentes, devido à suscetibilidade destes materiais ao desenvolvimento do fenômeno de trincamento induzido pelo hidrogênio (Hydrogen Induced Cracking - HIC), assim como devido a problemas de corrosão. O desenvolvimento de diferentes processos tecnológicos para a produção de tubos de aços ARBL, tais como a laminação controlada e resfriam
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Sevsek, Simon [Verfasser], Wolfgang [Akademischer Betreuer] Bleck, and Dmitri A. [Akademischer Betreuer] Molodov. ""On the impact of micro- and nanostructural characteristics on the deformation behavior and mechanical properties of high- and medium-manganese steels" / Simon Sevsek ; Wolfgang Peter Bleck, Dmitri Molodov." Aachen : Universitätsbibliothek der RWTH Aachen, 2019. http://d-nb.info/1195238010/34.

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Pérollier, Céline. "Synthèse de nouvelles métalloporhyrines chirales à substituants cyclopropaniques : applications en catalyse d'époxydation asymétrique et en reconnaissance moléculaire d'enantiomères." Université Joseph Fourier (Grenoble ; 1971-2015), 1998. http://www.theses.fr/1998GRE10191.

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Le biocartol ou acide (1r)-cis-hemicaronaldehydique, un compose cyclopropanique enantiopur provenant de la synthese industrielle d'insecticides pyrethroides, est utilise comme synthon pour la preparation de nouvelles porphyrines chirales. Nous decrivons la synthese d'amides du biocartol, puis la synthese des porphyrines correspondantes par condensation avec le pyrrole. Celles-ci sont obtenues exclusivement sous la forme de l'atropoisomere , avec un rendement variant de 7 a 60%. Une serie de complexes de manganese (iii) de ces chiroporphyrines, derivees d'amides et d'esters du biocartol, ont et
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Yang, Shan-Chun, and 楊善淳. "Study on Microalloyed Medium-Manganese Steels in Quenching and Austenite Reversion Process." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/n9m429.

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碩士<br>國立臺灣大學<br>材料科學與工程學研究所<br>107<br>The current work investigates micro/nanostructure and mechanical behaviors of microalloyed medium-Manganese steels processed by quenching and austenite reversion (Q&AR). Precipitation behaviors of carbides due to complex additions of Ti, V, Nb, and Mo and their roles were compared and discussed in this work. It was found that formation of microalloyed carbide can contribute to materials’ strength in two ways. During austenization, coarser carbides enable significant grain refinement by the Zener pinning effect, leading to finer martensite laths and uniform
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Chiang, Meng-Hsuan, and 江孟軒. "Precipitation of microalloyed carbides in medium-manganese low-carbon steels subjected to high-temperature Q&P process." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/2y2gvb.

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碩士<br>國立臺灣大學<br>材料科學與工程學研究所<br>105<br>In conventional quenching and partitioning (Q&P) processing, carbon partitions into retained austenite and stabilizes it during partitioning heat treatment at 300-500°C. The current research aimed at developing quenching and high temperature partitioning (Q&HTP) processing, in which manganese and carbon both partitioned into and stabilized retained austenite during high temperature partitioning heat treatment. To achieve this goal, new heat treatment processing and newly-designed alloys were developed. High temperature partitioning accompanied with austeni
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Books on the topic "Medium manganèse"

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Prasantha Shankilal Jayatilleke Wijeratine Seresinhe. The effects of three micro-nutrients, (boron, manganese, and iodine), indole acetic acid, and ascorbic acid in the culture medium on the growth of tomato cells in suspension culture. 1992.

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Book chapters on the topic "Medium manganèse"

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Mei, Y. Q., J. S. Pei, B. Zhu, and Y. S. Zhang. "Nondestructive Testing of Medium Manganese Steel Based on Barkhausen." In Atlantis Highlights in Materials Science and Technology. Atlantis Press International BV, 2023. http://dx.doi.org/10.2991/978-94-6463-114-2_54.

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Okuda, K., T. Ishikawa, T. Omori, and R. Kainuma. "Texture Evolutions in Annealing Process for Medium Manganese Steel Sheets." In Proceedings of the 6th International Conference on Recrystallization and Grain Growth (ReX&GG 2016). Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48770-0_10.

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Okuda, K., K. Okuda, T. Ishikawa, T. Omori, and R. Kainuma. "Texture Evolutions in Annealing Process for Medium Manganese Steel Sheets." In Proceedings of the 6th International Conference on Recrystallization and Grain Growth (ReX&GG 2016). John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119328827.ch10.

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Cai, Zhihui, Hua Ding, Xin Xue, Qibin Xin, and Jun Jiang. "Microstructure Evolution and Mechanical Properties of Hot-Rolled Medium Manganese TRIP Steels." In TMS2013 Supplemental Proceedings. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118663547.ch113.

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Guo, X. M., X. L. Zhang, J. Y. Mao, and Z. J. Wang. "Simulation Research on the Quenching and Partition Process of a Medium Manganese Steel." In Atlantis Highlights in Materials Science and Technology. Atlantis Press International BV, 2023. http://dx.doi.org/10.2991/978-94-6463-114-2_48.

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Kumaresan, Mythili, S. Radha, B. S. Sreeja, and K. Muthumeenakshi. "Electrochemical Sensing Behavior of Ammonia Detection in Alkaline Medium Using Manganese Dioxide Nanoparticles." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-3445-3_13.

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Wesselmecking, Sebastian, Marc Ackermann, Charline Blankart, et al. "Toward Holistic Digital Material Description During Press-Hardening." In Internet of Production. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-98062-7_22-1.

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AbstractPress hardening of manganese-boron steels is one of the most widely used production processes for high-strength automotive components. The low residual formability of these parts is a decisive disadvantage. The low formability originates from a strong, but brittle martensitic microstructure transformed during quenching in the press-hardening tool. In contrast, medium manganese steels (MMnS) contain high fractions of ductile retained austenite improving press-hardened parts toward promising candidates for crash-relevant car body components. Disadvantages include a more complex alloy des
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Wesselmecking, Sebastian, Marc Ackermann, Charline Blankart, et al. "Toward Holistic Digital Material Description During Press-Hardening." In Internet of Production. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-44497-5_22.

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AbstractPress hardening of manganese-boron steels is one of the most widely used production processes for high-strength automotive components. The low residual formability of these parts is a decisive disadvantage. The low formability originates from a strong, but brittle martensitic microstructure transformed during quenching in the press-hardening tool. In contrast, medium manganese steels (MMnS) contain high fractions of ductile retained austenite improving press-hardened parts toward promising candidates for crash-relevant car body components. Disadvantages include a more complex alloy des
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Liu, Yaohui, Sirong Yu, Zhenming He, and Qingchun Li. "Effect of Ce on Interfacial Wettability between A12O3 medium Manganese Steel and its Mechanism." In MICC 90. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3676-1_85.

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Ran, J. M., X. Y. Hu, B. Zhu, and Y. S. Zhang. "Realistic Microstructural RVE-Based Simulations of Stress-Strain Behavior of a Medium-Manganese Steels." In Atlantis Highlights in Materials Science and Technology. Atlantis Press International BV, 2023. http://dx.doi.org/10.2991/978-94-6463-114-2_49.

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Conference papers on the topic "Medium manganèse"

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Sonnleitner, Robert, Gregor Mori, Michael Panzenböck, Rainer Fluch, and Sabine Eglsäer. "Corrosion Fatigue of a CrMnN Stainless Steel." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08488.

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Abstract Austenitic CrMnN stainless steels have been developed as alternative with improved mechanical properties to replace austenitic CrNi stainless steels in certain applications. Stainless steels are often used in highly corrosive environments such as hot chloride solutions. In contradiction to CrNi stainless steels there are only very limited data available on corrosion fatigue of CrMnN steels in such environments. The investigated stainless steel contains 18% Chromium, 21% Manganese and 0.66% Nitrogen. Manganese is used to stabilize the austenitic lattice instead of Nickel and to increas
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Vichytil, C., R. Sonnleitner, G. Mori, M. Panzenböck, and R. Fluch. "Corrosion Fatigue Investigations on Austenitic Stainless Steels with Different Alloying Concepts." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10302.

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Abstract For applications under dynamic loads in aqueous, hot chloride containing media, austenitic stainless steels are often used. To reach a full and stable austenitic lattice, two different alloying concepts are commonly used. On the one hand, alloying with chromium-nickel and on the second hand, alloying with chromium-manganese-nitrogen results in a full austenitic lattice. Two steels, one of each group in the solution annealed condition are investigated in this paper. Stress versus number of cycles curves and crack propagation rate curves were recorded in inert glycerin as reference medi
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Holzleitner, S., G. Mori, H. Falk, and S. Eglsaeer. "Electrochemical and SCC Behavior of Highly Alloyed Austenitic Stainless Steels in Different Chloride Containing Media." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07477.

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Abstract Potentiodynamic measurements, Slow Strain Rate Tests (SSRT) and Constant Load Tests (CLT) were executed on austenitic stainless steels to investigate chloride induced stress corrosion cracking (CISCC). Tests were conducted in boiling 43 wt% calcium chloride (CaCl2) and 45 wt% magnesium chloride (MgCl2) solutions. For the tests one CrNiMo and five CrMnN were chosen. To get mechanical reference values glycerin was used at SSR test as inert medium. Additionally influences of chloride concentration and temperature were investigated in potentiodynamic measurements and slow strain rate test
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Liu, Qiang, Anca Diaconu, Jeff Soderberg, et al. "Development, Evaluation, and Field Performance of Combined Corrosion Inhibitor." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02233.

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Abstract Corrosion occurs in oil and gas gathering lines containing high H2S and/or CO2. In the presence of scale and bacteria, corrosion can be aggravated. A combined corrosion inhibitor (CCI-2) was developed, which provides corrosion/scale inhibition and mitigates microbially induced corrosion (MIC). A scale inhibitor with great performance and tolerance to high calcium cation concentration was incorporated in CCI-2. Autoclave tests were conducted using a synthetic brine of medium total dissolved solids with a gas phase of 520 kPa (75 psi) H2S, 350 kPa (50 psi) CO2, and 735 kPa(105 psi) N2.
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Yasir, Muhammad, Gregor Mori, S. Can Özer, Ferdinand Haider, and Helmut Wieser. "Corrosion Studies of Different Metal Coatings for Automotive Exhaust Applications." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11018.

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Abstract Corrosion in automotive exhaust components is one of the major problems due to which failures occur even after a very short period of time. Corrosion in such systems can be divided into two types: (a) cold end corrosion and (b) hot end corrosion. These different ends of the exhaust system corrode by different mechanisms. For cold end, the key concern has been corrosion due to interactions of salt solution from outside and acidic condensate from inside. Presently, the most commonly used materials in the automotive exhaust system are stainless steels. These steels contain high amounts o
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Kalil, A., A. Carnahan, S. Stivala, and A. Druschitz. "Medium-Manganese FeMnSiAlC Advanced High-Strength Steels." In International Symposium on New Developments in Advanced High-Strength Sheet Steels. Association for Iron & Steel Technology, 2023. http://dx.doi.org/10.33313/298/021.

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Nizam, Khairul Hafiz Shahrul, and Nur Syahiza Zainuddin. "Removal of Iron and Manganese in Groundwater Using Alum and Potassium Permanganate." In International Conference on Nanoscience and Nanotechnology 2022. Trans Tech Publications Ltd, 2023. http://dx.doi.org/10.4028/p-r97jlb.

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Groundwater has become one of the natural sources of water nowadays. Naturally, groundwater contains dissolving materials such as soils, rocks, and minerals, which later release constituents, including iron (Fe2+) and manganese (Mn). However, raw groundwater has been found to consist of a high concentration of such minerals, which exceed the Groundwater Quality Standard published by the Department of Environment Malaysia. Initially, the concentration of Fe2+ and Mn exceeding the limit mentioned in the standard; 1.0 and 0.2 mg/L, respectively, might affect the quality of the groundwater. Hence,
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De Moor, E., and J. Mueller. "Austenite Growth and Retention Simulations in Intercritically Annealed Medium Manganese Steels." In MS&T17. MS&T17, 2017. http://dx.doi.org/10.7449/2017/mst_2017_446_453.

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De Moor, E., and J. Mueller. "Austenite Growth and Retention Simulations in Intercritically Annealed Medium Manganese Steels." In MS&T17. MS&T17, 2017. http://dx.doi.org/10.7449/2017mst/2017/mst_2017_446_453.

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Glover, A., J. Speer, and E. De Moor. "Tempering and Austempering Response of a Double Soaked Medium-Manganese Steel." In MS&T18. MS&T18, 2018. http://dx.doi.org/10.7449/2018mst/2018/mst_2018_313_320.

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Reports on the topic "Medium manganèse"

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Field, Daniel, Daniel Magagnosc, Billy Hornbuckle, Jeffrey Lloyd, and Krista Limmer. Evaluation of Microstructure and Properties of Medium-Manganese Steels Modified with Molybdenum. DEVCOM Army Research Laboratory, 2023. https://doi.org/10.21236/ad1217514.

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Washburn, Quinn L., Savannah Spradlin, and Carolyn F. Weber. Addition of Zinc, Manganese, and Iron to Growth Media Triggers Antibiotic Production in Bacterial Isolates From the Lower Atmosphere. Journal of Young Investigators, 2017. http://dx.doi.org/10.22186/jyi.32.2.7-11.

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