18 research outputs found

    sj-docx-1-pie-10.1177_09544089221101370 - Supplemental material for Influence of processing and microstructure on the corrosion behavior of ultrafine grained Al 5083 alloy

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    Supplemental material, sj-docx-1-pie-10.1177_09544089221101370 for Influence of processing and microstructure on the corrosion behavior of ultrafine grained Al 5083 alloy by Dharmendra Singh, Palukuri Nageswara Rao and Chandra Shekhar Rajoria, Jaiprakash Bhamu, Sunkulp Goel, Sunil J Raykar, Kuldeep K Saxena, Rangaswamy Jayaganthan in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p

    sj-docx-2-pie-10.1177_09544089221101370 - Supplemental material for Influence of processing and microstructure on the corrosion behavior of ultrafine grained Al 5083 alloy

    No full text
    Supplemental material, sj-docx-2-pie-10.1177_09544089221101370 for Influence of processing and microstructure on the corrosion behavior of ultrafine grained Al 5083 alloy by Dharmendra Singh, Palukuri Nageswara Rao and Chandra Shekhar Rajoria, Jaiprakash Bhamu, Sunkulp Goel, Sunil J Raykar, Kuldeep K Saxena, Rangaswamy Jayaganthan in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p

    Surface segregation of primary glassy nanoparticles of Fe90Sc10 nanoglass

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    Electron energy loss spectroscopy (EELS) technique has, been used to map the elemental distribution in Fe90Sc10 primary glassy nanoparticles (GNp) and in the corresponding nanoglass (NG) produced by consolidation of the GNp. Due to the effect of surface segregation, Fe has been identified to enrich at the surfaces of the primary GNp. This behavior was found to agree with the theoretical results calculated based on a monolayer model. In addition, the heterogeneous structure of Fe90Sc10 NG with Fe enriched interfaces have also been observed directly, which may be attributed to the surface segregation of the primary GNp. (C) 2016 Elsevier B.V. All rights reserved

    Effect of water and mercury quenching on the microstructure and mechanical behavior of room temperature rolled Zircaloy-2

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    432-436The present study investigates the effect of water and mercury quenching on the microstructural and mechanical behavior of room temperature rolled Zircaloy-2. Solution treatment of Zircaloy-2 at 1073 K followed by quenching in mercury and water has been performed prior to rolling. Different reduction from 25% to 85% of the quenched alloy and further characterization has been performed by tensile testing, Electron back scattered diffraction (EBSD) and Transmission Electron Microscopy (TEM). Enhanced tensile strength (745 MPa) after 85% rolling reduction was obtained compared to 389 MPa after water quenching. Rolling reduction results an increase in the dislocation density, thereby enhancing the mechanical strength. Initial deformation has been observed by the activation of extension twinning from EBSD microstructure. Twinning results the inclination of ‘c’ axis towards the normal direction which makes near basal grains orientation along the deformation direction. Due to hard orientation i.e. ‘c’ axis aligned along the loading direction, the grain fragmentation is heterogeneous. Grain fragmentation leads to improvement in the ductility with minimal loss in strength owing to rearrangement of dislocations after annealing at 400o C for 30 minutes. By optimizing the annealing temperature (400o C for 30 minutes), bulk ultrafine grained Zircaloy-2 have been produced in 85% room temperature rolled Zircaloy-2
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