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Artykuły w czasopismach na temat "Stainless steel powder ftir analysis"

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Kedare, Rutticka. "Characterization of Powder Obtained from Surface of Waste-Plastic Bricks." International Journal of Innovative Science and Research Technology 5, no. 4 (2020): 462–68. http://dx.doi.org/10.38124/ijisrt20apr672.

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The basic aim of this work is to perform characterization of the powder obtained from surface of waste plastic brick which in turn provides a base to study the physical and chemical composition of bricks made from waste plastic bags and sand (Plastic bricks). The powder used for characterization was obtained from the surface of waste plastic bricks by scratching the surface of bricks with knife-like stainless-steel instruments. Before characterization, this powder was strained through a double layer strainer (mesh number 325, pore size 44 microns) to obtain fine powder particles. This fine pow
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Baseri, Hadi, Seyyed Khalil Hosseinihashemi, Sayed Khosrow Hosseinashrafi, and Jakia Jerin Mehjabin. "Potential Antioxidants in Bio-oil Obtained by Pyrolysis of Yew (Taxus baccata L.) Tree Bark." Drvna industrija 76, no. 2 (2025): 201–11. https://doi.org/10.5552/drvind.2025.0233.

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Bio-oil (BO), ethanol extract (EtE), and superheated ethanol extract (SHEtE) from the bark of Taxus baccata L. tree trunk fallen due to strong wind or landslide were obtained from pyrolysis of the crushed sample in the furnace at a temperature of 500 °C for 30 min, ordinary solvent extraction of air-dried powder sample for 24 hours using a 250 mL laboratory-scale Soxhlet extractor, and a small laboratory-scale reactor with a 50 ml cylindrical stainless steel vessel and maximum working temperatures of (300 ± 3) °C for superheated solvent extraction, respectively. The
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Harimawan, Ardiyan, Hary Devianto, Nicholas Khodiyat, Kreszen Livianus Gatalie, and Christian Aslan. "The Effect of Illumination, Electrode Distance, and Illumination Periods on the Performance of Phototrophic Sediment Microbial Fuel Cells (PSMFCs)." Journal of Engineering and Technological Sciences 56, no. 1 (2024): 1–10. http://dx.doi.org/10.5614/j.eng.technol.sci.2024.56.1.1.

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Microbial fuel cells (MFCs) can potentially be used to overcome issues with battery powered light buoys and their frequent maintenance. In this study, a phototrophic sediment microbial fuel cell (PSMFC) was chosen, as the microalgae provide oxygen to be reduced on the cathode and to release the necessary nutrients for the bacteria on the anode. To achieve this, we studied the effect of illumination, the period of the illumination, and the distance between 9-cm2 stainless steel mesh electrodes on the performance of the MFC. The illuminated cells were able to produce higher OCP (max. 205.2 mV) a
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Getnet, Tsegaye Gashaw, Milton E. Kayama, Elidiane C. Rangel, and Nilson C. Cruz. "Thin Film Deposition by Atmospheric Pressure Dielectric Barrier Discharges Containing Eugenol: Discharge and Coating Characterizations." Polymers 12, no. 11 (2020): 2692. http://dx.doi.org/10.3390/polym12112692.

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Eugenol (4-Allyl-2-methoxyphenol) is the main constituent of clove oil. In addition to being widely used as a condiment, it has been recognized as a powerful bactericide. Owing to that, Eugenol has been used in several applications including odontology and as a conservative for food products. Aiming at the development of natural bactericide coatings, in this work, using an atmospheric pressure plasma in a dielectric barrier discharge (DBD) reactor Eugenol was deposited on stainless steel substrate, with argon as a carrier gas. The discharge power supply was a transformer at 14.4 kV peak-to-pea
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Rahman, Mahmudur, Subrata Chandra Roy, Md Mizanul Hassan, et al. "Catalytic Pyrolysis of Waste Plastics into Liquid Hydrocarbon using Mesoporous Kaolin Clay." Journal of Bangladesh Academy of Sciences 44, no. 1 (2020): 1–12. http://dx.doi.org/10.3329/jbas.v44i1.48559.

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Catalytic pyrolysis of waste plastics into liquid hydrocarbon was conducted in a locally-made stainless steel reactor. Mesoporous kaolin clay treated with sulfuric acid in the concentration range of 3-7 M was used as a catalyst and waste polyethylene was the plastic feed. The X-ray powder diffraction (XRPD) pattern showed that the raw kaolin clay is crystalline. However, XRPD patterns of H2SO4 acid treated kaolin and Ni and Ru metal impregnated H2SO4 treated kaolin did not exhibit any characteristic diffraction peaks of kaolin. The acid treatment of kaolin causes leaching of Al3+ and results i
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Abdul Halim, Farah Syuhada, Sheela Chandren, Madzlan Aziz, Leaw Wai Loon, and Hadi Nur. "High voltage powder spray coating as a new method for the preparation of carbon-titania coated stainless steel." Malaysian Journal of Fundamental and Applied Sciences 13, no. 4 (2017): 812–16. http://dx.doi.org/10.11113/mjfas.v13n4.892.

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High voltage powder spray coating (HVPSC) is one of the methods used for coating substrate with polymer powder in industries. This study utilizes HVPSC as a new deposition method of carbon-based powdered materials on stainless steel. Carbon-titania (C/TiO2) coated stainless steel was successfully prepared from the mixture of epoxide and titania powder, sprayed onto stainless steel plate using HVPSC, followed by pyrolysis at 300 °C under nitrogen atmosphere. The functional group of C/TiO2 was confirmed by Fourier transform infrared (FTIR) spectroscopy, where the FTIR spectrum showed the presenc
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Chen, Wen Yi, Jian Zhou, and Ying Liu. "Oxidation Resistance Behave of Stainless Steel /TiC Nano Powders." Key Engineering Materials 434-435 (March 2010): 109–12. http://dx.doi.org/10.4028/www.scientific.net/kem.434-435.109.

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Stainless steel/TiC nanocomposite powder were prepared by high-energy ball-milling method using 316 stainless steel powder, carbon and titanium powder as raw materials. Microstructure of the nanocomposite powder was investigated with XRD and TEM techniques. The results showed that the stainless steel/TiC nanocomposite powder obtained when the ball-milling time was more than 40 hours. DSC analysis method was used to study the characteristics of oxidation resistance and the oxidation reaction kinetics of the nanocomposites powder. Results show that the oxidant resistance of nanocomposite powder
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Kwon, Y. S., H. T. Lee, and K. T. Kim. "Analysis for Cold Die Compaction of Stainless-Steel Powder." Journal of Engineering Materials and Technology 119, no. 4 (1997): 366–73. http://dx.doi.org/10.1115/1.2812271.

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Densification behavior of 316L stainless-steel powder under die pressing was studied. The friction effects between the powder and the die wall under different die pressing modes were also investigated. The elastoplastic constitutive equations, based on the yield functions by Fleck and Gurson and by Shima and Oyane, were implemented into a finite element program to simulate die compaction processes. The friction coefficient between the powder and the die wall was determined from the relationship between the compaction pressure and the ejection pressure. Finite element calculations were compared
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Bozic, Dusan, Miroljub Vilotijevic, Jovana Ruzic, Uros Jovanovic, and Jelena Stasic. "Microstructure and properties of gravity sintered 316l stainless steel powder with nickel boride addition." Science of Sintering 48, no. 3 (2016): 293–302. http://dx.doi.org/10.2298/sos1603293b.

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The present work demonstrates a procedure for synthesis of stainless steel powder by gravity sintering method. As an additive to the basic powder, NiB powder was added in the amount of 0.2 - 1.0 wt.%. Gravity sintering was done in vacuum, at the temperatures of 1100?C-1250?C, in the course of 3 - 60 min, using ceramic mould. Structural characterization was conducted by XRD, and microstructural analysis by optical and scanning electron microscope (SEM). Mechanical properties were investigated by tensile tests with steel rings. Density and permeability were determined by standard techniques for
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Fernandes, Cristina M., Ana Maria R. Senos, José M. Castanho, and M. Teresa Vieira. "Effect of the Ni Chemical Distribution on the Reactivity and Densification of WC-(Fe/Ni/Cr) Composite Powders." Materials Science Forum 514-516 (May 2006): 633–37. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.633.

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The objective of this work was to study the effect of the Ni distribution on the reactivity and densification of WC-(Fe/Ni/Cr) composite powders. For such, stainless steel AISI 304, was used as a binder base composition which was enriched with Ni by three different processing methods: WC sputter deposition using a target of stainless steel with Ni discs, conventional wet milling of commercial powders (WC, stainless steel and Ni powders) and a previous coating of the WC particles with Ni, followed by the conventional mixing of this coated powder with stainless steel powder. The reactive sinteri
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Rozprawy doktorskie na temat "Stainless steel powder ftir analysis"

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Villaret, Flore. "Développement d’une jonction austéno-martensitique à gradient de composition chimique par fabrication additive." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI104.

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Ces travaux de thèse concernent la problématique des liaisons bimétalliques acier austénitique/acier martensitique. Cette action de recherche se focalise sur une liaison acier austénitique 316L (X2 CrNiMo 18-12-02) / acier martensitique Fe-9Cr-1Mo (X10 CrMo 9-1). L’objectif est de comprendre la problématique métallurgique liée à l’assemblage de ces deux types de nuance et d’évaluer les possibilités de réaliser par métallurgie des poudres et par fabrication additive des transitions aciers austénitiques/aciers martensitiques. Une soudure obtenue par faisceau d’électrons sert de liaison de référe
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Chi-YuanChen and 陳棋元. "Numerical Analysis on Molten Pool of Stainless Steel 316L Metal Powder by Fixed-point Heating in Selective Laser Melting." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/wx3evk.

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碩士<br>國立成功大學<br>機械工程學系<br>105<br>In this study, a numerical model is developed to investigate the molten pool of stainless steel 316L metal powder by fixed- point heating in Selective Laser Melting (SLM). This model also considers the effects of buoyancy, Marangoni forces, radiation and convection heat losses. Furthermore, it relates to moving heat source to consider whether Marangoni effects highly affects molten pool or not in high laser scanning speed. The results show that Marangoni forces make the shape of molten pool much deeper and narrower. The benefits of powder melting will increase
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Shou-HaoJiang and 蔣守皓. "Numerical Analysis on Molten Pool of Stainless Steel 316L Metal Powder by Multi-track Scanning in Selective Laser Melting." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/dyfvjx.

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碩士<br>國立成功大學<br>機械工程學系<br>106<br>In this study, a numerical model is established to investigate the molten pool of stainless steel 316L metal powder by multi-track scanning in Selective Laser Melting (SLM). The results show that the influence of Marangoni effect on the temperature field becomes greater with increasing laser power at scanning speed 640mm/s. When laser power maintains 150W, the decrease of scanning speed makes the shape of molten pool much deeper and narrower. Based on the results, it is inappropriate to neglect Marangoni effect during SLM simulation with these laser parameters.
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Części książek na temat "Stainless steel powder ftir analysis"

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"Study of martensitic transformation in fatigued stainless steel by neutron diffraction stress analysis." In Ninth European Powder Diffraction Conference. Oldenbourg Wissenschaftsverlag, 2006. http://dx.doi.org/10.1524/9783486992526-058.

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Batista da Silva, Escarlet, Márcia Giardinieri Azevedo, Lioudmila Aleksandrovna Matlakhova, Bárbara Ferreira de Oliveira, and Luciano José de Oliveira. "Spark Plasma Sintering of NiCrSiBC Alloys." In New Advances in Powder Technology [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.108597.

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Nickel-based alloys of the NiCrSiBC system (colmonoy alloys) are normally deposited on stainless-steel substrates for coating applications, once they present high resistance to wear and corrosion at high temperatures. Typically, deposition occurs through welding processes, such as PTA (plasma transferred arc) or laser cladding. This study mainly aims to evaluate the effectiveness of the spark plasma sintering (SPS) process through the evaluation of the sintered body density, and structural and microstructural analysis of the Colmonoy-5. SPS sintering occurred at 900°C under 50 MPa for 15 minut
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Jayakumar Karthikeyan and Arunachalam Ananthi. "Material properties of bottom ash and welding slag as fine aggregates in concrete." In Construction Materials and Structures. IOS Press, 2014. https://doi.org/10.3233/978-1-61499-466-4-311.

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This paper highlights the use of industrial waste such as bottom ash and two types of welding slag (WS) such as Steel WS and Stainless Steel WS, as the partial replacements for fine aggregates in concrete. This Paper presents the chemical analysis and strength properties of industrial solid waste consisting of Bottom ash, Steel WS and Stainless Steel WS. Their chemical compositions were identified by X-ray powder diffraction (XRD) analysis. The results shows that the 7-day compressive strength of concrete containing 10% bottom ash increases by about 1.2 N/mm2and at 28 days, it increases by abo
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"Front Matter." In Effects of Product Quality and Design Criteria on Structural Integrity. ASTM International100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, 1998. http://dx.doi.org/10.1520/stp12338s.

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Explores ways to increase the reliability in the initial quality of engineering materials, components and structures. Leading experts in the field have presented eleven peer-reviewed papers addressing such issues as: • The impact of production processing changes on laminated high-strength stainless steel corrosion damage and fatigue strength loss • High temperature applications using fracture mechanics methodologies • The influence of density and porosity size and shape on the fatigue properties of a high-strength powder metallurgy steel • How to alleviate performance problems in a nickel base
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Sahu, Anshuman Kumar, and Siba Sankar Mahapatra. "Electrical Discharge Coating by Copper-Tungsten Composite Electrode Prepared by Powder Metallurgy Route." In Soft Computing Techniques and Applications in Mechanical Engineering. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3035-0.ch010.

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Electrical discharge machining (EDM), a thermo-mechanical machining process, is used in producing complicated intrinsic cavity in difficult-to- machine materials with excellent surface finish. One of the major disadvantage of EDM process is the tool wear, which can be used advantageously for coating purpose. Coating is a unique method of EDM process by the use of electrode prepared via powder metallurgy route. Copper and tungsten powders in weight percentage of 30 and 70 respectively are used for the preparation of the tool electrode by varying the PM process parameters like compaction pressur
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Jomdecha Cherdppong, Cai Wenlu, Xie Shejuan, Chen Zhenmao, Phung-On Isaratat, and Pattanakul Rungrueang. "Fabrication of Imitative Stress-Corrosion Cracks for Electromagnetic NDE Using Synchrotron Deep X-Ray Lithography and Powder Metallurgy Processing." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2018. https://doi.org/10.3233/978-1-61499-836-5-80.

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This paper presents advanced methods using the deep X-ray lithography (X-ray LIGA) and the powder metallurgy processing to fabricate imitative Stress Corrosion Crack (SCC) for electromagnetic NDE as needed to be a reference specimen. A pattern of the imitative SCC was formed by using X-ray LIGA with controllable shape and size with precise details of SU-8 material. The prepared pattern was then inserted into mixed-stainless steel and Sn powders in a soft mold by using less pressure filling method. Afterward, the specimens were sintered at 1100&amp;deg;C. The results showed that these promising
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Streszczenia konferencji na temat "Stainless steel powder ftir analysis"

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Troyanosky, Ellen K., Jianyu Liang, and Thomas L. Christiansen. "Sub-Zero Treatment of 17-4PH Stainless Steel Manufactured by Laser Powder Bed Fusion." In IFHTSE 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.ifhtse2024p0167.

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Abstract Additively manufactured (AM) metals require a modified heat treatment to accommodate for slight differences in composition caused by powder atomization and cover gas used in the manufacturing process. 17-4PH stainless steel (17-4PH) is a precipitation hardening steel which hardens through the formation of Cu precipitates in a martensitic matrix during aging treatment. The powders used in Laser Powder Bed Fusion (LPBF) fabrication of 17-4PH are typically spray atomized using N2 cover gas, which is associated with a certain amount of nitrogen uptake. Nitrogen is a potent austenite stabi
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Prochaska, Stephanie, and Owen Hildreth. "Impact of Support Dissolution on the Corrosion Resistance of 316L Stainless Steels." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16449.

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Abstract Metal additive manufacturing (AM) generally requires removal of support structures through costly post processing which may limit part design and complexity. A novel process developed at the Colorado School of Mines has dramatically simplified post processing by sensitizing and selectively corroding support material. While this process has been proven for 316L stainless steel, the corrosion response of the stainless steel after etching is unknown. To determine whether the corrosion-resistant properties of the stainless steel are maintained, this paper evaluates additively manufactured
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Aljeaban, Norah, Bader Alharbi, Ahmed Busaleh, and Tawfik A. Saleh. "Synthesis of Silane-Modified Nanoparticles-Based Corrosion Inhibitor for Acidic Corrosion." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-18882.

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Abstract Corrosion can cause serious metal deterioration and equipment failure in the oil and gas industry and poses a safety hazard. It occurs in presence of an aqueous solution and acidic media when conditions permit. The application of metal protection is one of the most industrially economical methods of controlling metallic corrosion in an acidic environment. Herein, a silane-modified nanoparticle corrosion inhibitor has been successfully synthesized and characterized by different analysis methods. Silica nanoparticles were fabricated by organosilane composite with carboxylic groups(-COOH
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Arteaga, C. Cuevas, S. Serna, and J. Porcayo Calderón. "SEM and Hot Corrosion Evaluation of 80Ni-20Cr Coating Applying Electrochemical Techniques." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08462.

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Abstract The corrosion resistance of 80 wt. % Ni-20Cr coating applied by the powder flame thermal spray technique on AISI 304 stainless steel has been evaluated in 80 mol % Na2SO4-20V2O5 molten salt using electrochemical techniques. The testing temperatures were 700, 800 and 900°C, and the electrochemical techniques included potentiodynamic polarization curves (PPC) and electrochemical noise (EN). The objective of this research was to obtain the corrosion mechanism from the EN technique and polarization curves. The current and potential time series data were analyzed in the time domain. A SEM
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Sanni, Olujide, Thibaut Charpentier, and Anne Neville. "Carbonate and Sulfide Scale Formation in Multiphase Conditions." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17894.

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Abstract Calcium carbonate (CaCO3) scale formation is recognized as a major problem affecting production and transportation in the oil and gas industry. The phenomenon is extensively studied however; very limited work has been carried out to evaluate it in multiphase environments. This work aims to study calcium carbonate surface deposition in a multiphase environment that can replicate more accurately conditions encountered during secondary and ternary oil production. Multiphase conditions induced by introduction of a light distillate within the system were used to create oil in water (o/w) e
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Rodkevich, Nikolay, Elena Glazkova, Aleksandr Pervikov, Marat Lerner, and Sergey Kazantsev. "Analysis of dilatometry data of the stainless steel 316L bimodal powder sintering process." In PROCEEDINGS OF THE ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES. Author(s), 2018. http://dx.doi.org/10.1063/1.5083495.

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Miller, M. N., C. W. Wilson, M. Hilton, and G. Marston. "Quantitative Determination of Methane, Ethene, Ethyne, and Benzene From Within the Sector of a Gas Turbine Combustor." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53362.

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This paper describes experimental work undertaken in the quantitative measurement of specific hydrocarbons found at different axial locations within a gas turbine combustor. The motivation for this work was to gain a greater understanding of the combustion process and obtain data which could be used to provide validation for computational fluid dynamic and chemical kinetic models. Chemical species routinely measured using the QinetiQ internal traversing facility are: H2, O2, NO, NO2, THC, CO2, CO and smoke. For this work, a Fourier Transform Infrared spectrometer (FTIR) was added to the suite
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Luaces, A., A. Aourdou, G. García, J. M. Amado, M. J. Tobar, and A. Yáñez. "Laser-DED Of WC-Stainless Steel Metal Matrix Composites: Functionally Graded Deposition And Tribological Performance." In Euro Powder Metallurgy 2024 Congress & Exhibition. EPMA, 2024. http://dx.doi.org/10.59499/ep246282865.

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This study investigates the laser direct energy deposition (DED) of WC-steel metal matrix composites to create functionally graded coatings with varying carbide content. Using a Nd-YAG laser and a powder distribution system, coatings were deposited with controlled gradients of WC within the A316L stainless steel matrix. Microstructural analysis revealed uniform carbide distribution and effective bonding with the metallic matrix. Hardness measurements demonstrated a significant increase in matrix hardness with increasing WC content, confirming successful carbide incorporation. Tribological test
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Ahmed, Rakan A., Raja S. Khan, Mohammed M. Qahtani, Abduljabar Alsayoud, and Abdulhameed S. Bukhari. "Dilution Rate Analysis of Repairing 316L Stainless Steel Pump Impeller by Laser Cladding Inconel 625 Powder." In ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/gt2024-121724.

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Abstract In the oil and gas industry, critical rotating equipment reliable performance is crucial in the seamless operation of production and processing facilities. This paper uses a pump impeller as the basis for a deep dive into novel repair methods. The impeller retained excessive damage to the wear ring landing area while the wall thickness of the damaged location was critically reduced, making it hard to repair using conventional methods or welding techniques. It is observed that the traditional welding techniques, due to excessive heat, could lead to deformation leading to potential chal
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Naranjo, J. A., G. Perez, C. Berges, J. Hidalgo, and G. Herranz. "New Challenges In The Development Of Hybrid Catalytic Feedstock Based On 316L Stainless Steel Master Alloys." In Euro Powder Metallurgy 2023 Congress & Exhibition. EPMA, 2023. http://dx.doi.org/10.59499/ep235765138.

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The development of materials using master alloys has many advantages over pre-alloyed powders, such as better preservation of the shape of the parts at a more competitive cost. This type of alloy is commonly used for Metal Injection Moulding (MIM), which makes its use in 3D printing very interesting. However, its use for sinter based additive manufacturing technologies is not obvious, as it requires a detailed analysis of its flowability to accomplish a unique feedstock processable by MIM and Fused Filament/Pellets Fabrication (FFF/FPF) technologies (hybrid feedstock). Rheological and experime
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