Search Results - "Babu, Sudarsanam S."

Numerical modeling of heat-transfer and the influence of process parameters on tailoring the grain morphology of IN718 in electron beam additive manufacturing by Raghavan, Narendran, Dehoff, Ryan, Pannala, Sreekanth, Simunovic, Srdjan, Kirka, Michael, Turner, John, Carlson, Neil, Babu, Sudarsanam S.

“…The fabrication of 3-D parts from CAD models by additive manufacturing (AM) is a disruptive technology that is transforming the metal manufacturing industry…”
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Thermal effects on microstructural heterogeneity of Inconel 718 materials fabricated by electron beam melting by Sames, William J., Unocic, Kinga A., Dehoff, Ryan R., Lolla, Tapasvi, Babu, Sudarsanam S.

“…Additive manufacturing technologies, also known as 3D printing, have demonstrated the potential to fabricate complex geometrical components, but the resulting…”
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Recyclability Study on Inconel 718 and Ti-6Al-4V Powders for Use in Electron Beam Melting by Nandwana, Peeyush, Peter, William H., Dehoff, Ryan R., Lowe, Larry E., Kirka, Michael M., Medina, Francisco, Babu, Sudarsanam S.

“…Powder bed-based additive manufacturing technologies offer a big advantage in terms of reusability of the powders over multiple cycles that result in cost…”
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On the toughness scatter in low alloy C-Mn steel samples fabricated using wire arc additive manufacturing by Sridharan, Niyanth, Noakes, Mark W., Nycz, Andrzej, Love, Lonnie J., Dehoff, Ryan R., Babu, Sudarsanam S.

“…Low alloy carbon manganese (C-Mn) steel builds were fabricated using a wire based additive manufacturing system developed at Oak Ridge National Laboratory…”
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Fully printed and integrated electrolyzer cells with additive manufacturing for high-efficiency water splitting by Yang, Gaoqiang, Mo, Jingke, Kang, Zhenye, Dohrmann, Yeshi, List, Frederick A., Green, Johney B., Babu, Sudarsanam S., Zhang, Feng-Yuan

“…[Display omitted] •Integrated electrolyzer cells with complex inner structure were fully printed with additive manufacturing.•Four components in PEMECs were…”
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Bipolar plate development with additive manufacturing and protective coating for durable and high-efficiency hydrogen production by Yang, Gaoqiang, Yu, Shule, Mo, Jingke, Kang, Zhenye, Dohrmann, Yeshi, List, Frederick A., Green, Johney B., Babu, Sudarsanam S., Zhang, Feng-Yuan

“…Additive manufacturing (AM) of the complex devices for energy application remains an almost unexplored area, and the harsh acidic environment also limits the…”
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Multimodal γ′ precipitation in Inconel-738 Ni-based superalloy during electron-beam powder bed fusion additive manufacturing by Haghdadi, Nima, Whitelock, Edward, Lim, Bryan, Chen, Hansheng, Liao, Xiaozhou, Babu, Sudarsanam S., Ringer, Simon P., Primig, Sophie

“…Additive manufacturing is a promising alternative method for fabricating components of Ni-based superalloys which are difficult to cast, form and join…”
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Additive manufactured bipolar plate for high-efficiency hydrogen production in proton exchange membrane electrolyzer cells by Yang, Gaoqiang, Mo, Jingke, Kang, Zhenye, List, Frederick A., Green, Johney B., Babu, Sudarsanam S., Zhang, Feng-Yuan

“…Additive manufacturing (AM) technology is capable of fast and low-cost prototyping from complex 3D digital models. To take advantage of this technology, a…”
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Microstructural and micromechanical characterization of IN718 theta shaped specimens built with electron beam melting by Cakmak, Ercan, Kirka, Michael M., Watkins, Thomas R., Cooper, Ryan C., An, Ke, Choo, Hahn, Wu, Wei, Dehoff, Ryan R., Babu, Sudarsanam S.

“…Theta-shaped specimens were additively manufactured out of Inconel 718 powders using an electron beam melting technique, as a model complex load bearing…”
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Post-processing to Modify the α Phase Micro-Texture and β Phase Grain Morphology in Ti-6Al-4V Fabricated by Powder Bed Electron Beam Melting by Nandwana, Peeyush, Lee, Yousub, Ranger, Chasen, Rollett, Anthony D., Dehoff, Ryan R., Babu, Sudarsanam S.

“…Additively manufactured Ti-6Al-4V has columnar β grains along the build direction with a 〈001〉 fiber texture. Because of Burgers Orientation Relationship, the…”
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Similarity analysis for thermal signature comparison in metal additive manufacturing by Chandrasekar, Sujana, Coble, Jamie B., List, Fred, Carver, Keith, Beauchamp, Serena, Godfrey, Amy, Paquit, Vincent, Babu, Sudarsanam S.

“…[Display omitted] •An in-situ monitoring method and similarity analysis algorithm has been developed as a potential tool for part qualification based on…”
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Characterization and Rationalization of Microstructural Evolution in GRCop-84 Processed by Laser-Powder Bed Fusion (L-PBF) by Minneci, Robert P., Haines, Michael P., Gradl, Paul R., Ellis, David L., Lass, Eric A., Bunn, Jeffrey R., Choo, Hahn, Jones, Zachary C., Babu, Sudarsanam S., Rawn, Claudia J.

“…Prismatic geometries of GRCop-84 [Cu-8Cr-4Nb (at. pct)] were built with laser-powder bed fusion (L-PBF) process. The samples were sectioned parallel or…”
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Multi-solution nature of topology optimization and its application in design for additive manufacturing by Rezayat, Hassan, Bell, Jared Richard, Plotkowski, Alex J, Babu, Sudarsanam S

“…Purpose The purpose of this paper is to introduce the multi-solution nature of topology optimization (TO) as a design tool for additive manufacturing (AM). The…”
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Feasibility Study of Making Metallic Hybrid Materials Using Additive Manufacturing by Cakmak, Ercan, Sridharan, Niyanth, Venkatakrishnan, Singanallur V., Bilheux, Hassina Z., Santodonato, Louis J., Shyam, Amit, Babu, Sudarsanam S.

“…A metallic hybrid structure, consisting of an Inconel-718 matrix and a Co-Cr internal structure, was successfully manufactured using laser direct energy…”
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Fabrication of conductive paths on a fused deposition modeling substrate using inkjet deposition by Zhou, Wenchao, List, Frederick A, Duty, Chad E, Babu, Sudarsanam S

“…Purpose – The purpose of this paper is to explore the possibility of integrating inkjet printed circuitry with fused deposition modeling (FDM) structures to…”
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Correction to: Post-processing to Modify the α Phase Micro-Texture and β Phase Grain Morphology in Ti-6Al-4V Fabricated by Powder Bed Electron Beam Melting by Nandwana, Peeyush, Lee, Yousub, Ranger, Chasen, Rollett, Anthony D., Dehoff, Ryan R., Babu, Sudarsanam S.

“…In the original article there are errors in the As-Fab Horizontal row in Table II. Following is the corrected table…”
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Prediction and understanding of non-linear distortion on large curved wall manufactured by wire-arc direct energy deposition by Lee, Yousub, Nycz, Andrzej, Simunovic, Srdjan, Meyer, Luke, Vaughan, Derek, Carter, William, Babu, Sudarsanam S., Vaughan, Joshua, Love, Lonnie

“…•In large-scale metal AM, part deformation management is a primary challenge.•The geometric part complexity has a significant impact on the part deformation…”
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Mechanical Characterization of an Additively Manufactured Inconel 718 Theta-Shaped Specimen by Cakmak, Ercan, Watkins, Thomas R., Bunn, Jeffrey R., Cooper, Ryan C., Cornwell, Paris A., Wang, Yanli, Sochalski-Kolbus, Lindsay M., Dehoff, Ryan R., Babu, Sudarsanam S.

“…Two sets of “theta”-shaped specimens were additively manufactured with Inconel 718 powders using an electron beam melting technique with two distinct scan…”
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Sintering Kinetics of Inkjet-Printed Conductive Silver Lines on Insulating Plastic Substrate by Zhou, Wenchao, List, Frederick A., Duty, Chad E., Babu, Sudarsanam S.

“…This paper focuses on sintering kinetics of inkjet-printed lines containing silver nanoparticles deposited on a plastic substrate. Upon heat treatment, the…”
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Powder bed binder jet 3D printing of Inconel 718: Densification, microstructural evolution and challenges by Nandwana, Peeyush, Elliott, Amy M., Siddel, Derek, Merriman, Abbey, Peter, William H., Babu, Sudarsanam S.

“…•Compares different powder-bed additive manufacturing techniques for fabricating Inconel 718 with a focus on binder jet 3D printing.•Discusses binder jet 3D…”
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