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gas atomization

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Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 880-891, October 21–24, 2019,
... been done in response to the limited focus on development of new superalloys designed to overcome the limitations of the AM process, specifically the high defect density of parts made from high-performance alloys. Selected compositions have been made using gas atomization, and laser powder-bed fusion...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 892-896, October 21–24, 2019,
.... In this frame, two different alloys, Ti-47Al-1Fe-1Zr-1Mo-0.2Si (at. %) FZM and Ti- 43.5A1-4Nb-1Mo-0.1B (at.%) TNM-B1, were gas-atomized into powders, extruded, heat-treated and mechanically tested. gamma-titanium-aluminum alloys gas atomization powder metallurgy turbine blades Joint EPRI 123HiMAT...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 365-372, October 15–18, 2024,
... Abstract Modified 9Cr-1Mo steel was manufactured via laser powder bed fusion (LPBF) using gas atomized powders under various building conditions. Dense samples were obtained at an energy density of 111-125 J/mm 3 . As-built samples were subjected to a normalization and tempering heat treatments...
Proceedings Papers

AM-EPRI2010, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Sixth International Conference, 393-407, August 31–September 3, 2010,
... Metallurgy? Powder metallurgy is a forming and fabrication technique that consists of multiple stages which include: 1) component design, 2) manufacturing of a metallic powder normally by gas atomization, 3) loading of the powder into a mold or die with a packing density of 60-70% , 4) degassing and sealing...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 473-482, October 15–18, 2024,
... microstructures via intense straining through shear assisted processing. The second example is of the rods fabricated from gas atomization reaction synthesis powder signifying the flexibility of the process. The schematic of feedstock information, a mixture of stainless-steel powder and Y2O3 powder, is shown...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 861-872, October 15–18, 2024,
... of estimated creep life at 900°C, the x axis combines models for both AM processability and post processing Powder Production and Characterization Gas-atomized powder, with a patented composition within the ranges shown in Table 1 was used in the present study [20]. This powder was supplied by Aubert & Duval...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 470-478, October 21–24, 2019,
... was prepared by triple melting. They were solution treated and aged after die forging into 400 disk shape. Raw material powder for P/M material was prepared by Ar gas atomization process following hot isostatic pressing (HIP) process. HIP ingot has a diameter of 100x130 mm. High temperature tensile test...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 897-903, October 21–24, 2019,
... alloy raw powder with an average particle diameter of approximately 100 m, fabricated using the gas atomization process (Arcam AB, Sweden), was used in this study. Cylindrical bars of the 48-2-2 alloy, 10 mm in diameter and 90 mm in length, were fabricated using an Arcam A2X EBM system (Arcam AB...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 377-387, October 11–14, 2016,
..., but creep tested at 700C for 1078 h Creep Sample W2491B, PMHIP VIM melted, N2 gas-atomized powder Hot iso-static pressed at 1200C, slow cooled W2491B, Extruded As above, but extruded to a 400 mm x 39 mm thickness pipe at 12:1 ratio at 1200C Solution heat treated at 1200C for 1 hour, water quenched Table 2...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 74-87, October 15–18, 2024,
... density across both LBPBF and EBPBF builds. Gas atomized powder was manufactured to specifications of 15 to 53 µm for the LBPBF material and 15 to 90 µm for the EBPBF material. Optical microscopy and automated image analysis was used to determine overall part density. LBPBF produced material exhibited...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 1138-1148, October 11–14, 2016,
... temperature without any forced conditions. 3) HIP/PM alloy (Haynes 282-SINT) made by Carpenter Powder Products Inc. (USA) in cooperation with Energy Industry of Ohio (USA) from argon gas atomized powder that was produced from HAYNES® 282® WROUGHT alloy using Micro-Melt® process and then compacted under high...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 678-689, October 15–18, 2024,
... with promising mechanical properties for the gas industry, IN738LC is the investigated material in this study. The gas atomized IN738LC powder used in this study, with the chemical composition shown in Table 1, has a D10 D90 range corresponding to 22 49 µm. Table 1: Chemical composition of IN738LC powder in wt...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 982-991, October 22–25, 2013,
... under gas status and oxygen atom under gas status. During welding process, the welding arc temperature reaches 3000 to 5000K, which could guarantee the above reaction to reach into balance state. Yttrium atoms are absorbed into the welding arc and these active atoms are ease to attached on the surface...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 213-223, October 11–14, 2016,
... Abstract Modern polycrystalline Ni-base superalloys for advanced gas turbine engines have been a key component that has contributed to technological advances in propulsion and power generation. As advanced turbine engine designs are beginning to necessitate the use of materials with temperature...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 821-829, October 21–24, 2019,
...-component alloys are classified using mixing entropy using the following equation [14]. High entropy alloy (HEA): Smix 1.5R (1) Medium entropy alloy (MEA): 1.0R Smix 1.5R (2) Low entropy alloy (conventional solid-solution alloy. LEA): Smix 1.0R where, Smix is mixing entropy, R is a gas constant...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 994-1007, October 15–18, 2024,
... by SIJ Acroni. The chemical composition was provided by SIJ Acroni. The AM specimens were produced by powder-based direct energy deposition (DED) by an Optomec LENS MTS500 (more on the process later). The powder used for this material was produced by GKN Hoegannaes by gas atomization. The powder...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 540-551, October 15–18, 2024,
... with miniature tooling within a characteristic confinement in two different capacities: cleaning and coating. In general, the cold-spray process uses pressurized and preheated inert gas to propel powders at supersonic velocities, while remaining solid-state. Cold-spray cleaning is an economical, non-deposition...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 1389-1394, October 21–24, 2019,
... for low temperature components of recent gas turbine engines, where operation temperature is about less than 873 K. Because the temperature corresponds to 0.45 of the melting temperature, it is considered that deformation mode might belong to low temperature region. However, it has been reported...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 1004-1013, October 21–24, 2019,
.... Penetration of protective chromia scales by carbon. Scripta Mater. (2014) 77, 29-32 [17] Nguyen T.D., Fontaine A. La, Yang L., Cairney J.M. Zhang J., Young D.J. Atom probe study of impurity segregation at grain boundaries in chromia scales grown in CO2 gas, Corrosion Science, 132 (2018) 125-135 1013...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 1060-1068, October 21–24, 2019,
... welded joint by gas tungsten arc weld. Liquid fraction and liquid composition variation under non-equilibrium state were calculated by thermo-dynamic calculation. The weld microstructure and the composition in the dendrite core and interdendritic region were analyzed by SEM(EDX) in detail...