Author Page for Randi Holmestad

High-Temperature Radiation Resistance of NiCoFe Medium-Entropy Alloy Enabled by Stable Nanostructures and Defect Evolution Mechanisms

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High-Temperature Radiation Resistance of NiCoFe Medium-Entropy Alloy Enabled by Stable Nanostructures and Defect Evolution Mechanisms

Number of pages: 45 Posted: 17 Jan 2024

Sri Tapaswi Nori, Amin Esfandiarpour, Damian Kalita, Maciej Zieliński, K. Mulewska, Ruben Bjørge, Per Erik Vullum, Witold Chromiński, Mingyang Li, Yongqin Chang, Yanwen Zhang, Ryszard Diduszko, Nagini Macha, Sairam K. Malladi, Randi Holmestad, M. Alava and L. Kurpaska

NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, SINTEF Industry, Norwegian University of Science and Technology (NTNU), Warsaw University of Technology - Faculty of Materials Science and Engineering, University of Science and Technology Beijing, University of Science and Technology Beijing, Government of the United States of America - Idaho National Laboratory, NOMATEN Centre of Excellence - National Center for Nuclear Research, Indian Institute of Technology (IIT), Hyderabad, Indian Institute of Technology (IIT), Hyderabad, Norwegian University of Science and Technology (NTNU) - Department of Physics, NOMATEN Centre of Excellence - National Center for Nuclear Research and NOMATEN Centre of Excellence - National Center for Nuclear Research

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Abstract:

High-Temperature Radiation Resistance of Nicofe Medium-Entropy Alloy Enabled by Stable Nanostructures and Defect Evolution Mechanisms

Number of pages: 57 Posted: 16 Sep 2024

Sri Tapaswi Nori, Amin Esfandiarpour, Damian Kalita, Maciej Zieliński, K. Mulewska, Ruben Bjørge, Per Erik Vullum, Pedro Ferreirós, Witold Chromiński, Mingyang Li, Yongqin Chang, Yanwen Zhang, Ryszard Diduszko, Nagini Macha, Sairam K. Malladi, Daniel Mason, Randi Holmestad, M. Alava and L. Kurpaska

NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, SINTEF Industry, Norwegian University of Science and Technology (NTNU), VTT Technical Research Centre of Finland, Warsaw University of Technology - Faculty of Materials Science and Engineering, University of Science and Technology Beijing, University of Science and Technology Beijing, Government of the United States of America - Idaho National Laboratory, NOMATEN Centre of Excellence - National Center for Nuclear Research, Indian Institute of Technology (IIT), Hyderabad, Indian Institute of Technology (IIT), Hyderabad, Culham Science Centre - United Kingdom Atomic Energy Authority, Norwegian University of Science and Technology (NTNU) - Department of Physics, NOMATEN Centre of Excellence - National Center for Nuclear Research and NOMATEN Centre of Excellence - National Center for Nuclear Research

Downloads 43 (1,170,161)

Abstract:

High-Temperature Radiation Resistance of Nicofe Medium-Entropy Alloy Enabled by Stable Nanostructures and Defect Evolution Mechanisms

Number of pages: 45 Posted: 12 Apr 2025

Sri Tapaswi Nori, Amin Esfandiarpour, Damian Kalita, Maciej Zieliński, K. Mulewska, Ruben Bjørge, Per Erik Vullum, P. A. Ferreirós, Witold Chromiński, Mingyang Li, Yongqin Chang, Yanwen Zhang, Ryszard Diduszko, Nagini Macha, Sairam K. Malladi, Daniel Mason, Randi Holmestad, M. Alava and L. Kurpaska

NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, NOMATEN Centre of Excellence - National Center for Nuclear Research, SINTEF Industry, Norwegian University of Science and Technology (NTNU), University of Birmingham, Warsaw University of Technology - Faculty of Materials Science and Engineering, University of Science and Technology Beijing, University of Science and Technology Beijing, Government of the United States of America - Idaho National Laboratory, NOMATEN Centre of Excellence - National Center for Nuclear Research, Indian Institute of Technology (IIT), Hyderabad, Indian Institute of Technology (IIT), Hyderabad, Culham Science Centre - United Kingdom Atomic Energy Authority, Norwegian University of Science and Technology (NTNU) - Department of Physics, NOMATEN Centre of Excellence - National Center for Nuclear Research and NOMATEN Centre of Excellence - National Center for Nuclear Research

Downloads 40 (1,210,354)

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The Evolution of Precipitates in an Al-Zn-Mg Alloy

Number of pages: 19 Posted: 22 Jan 2023

Elisabeth Thronsen, Sohail Shah, Constantinos Hatzoglou, Calin Marioara, Sigurd Wenner, Sigmund Jarle Andersen, Bjørn Holmedal and Randi Holmestad

Norwegian University of Science and Technology (NTNU), Norwegian University of Science and Technology (NTNU), Norwegian University of Science and Technology (NTNU), SINTEF Industry, SINTEF Industry, SINTEF Industry, Norwegian University of Science and Technology (NTNU) - Department of Materials Science and Engineering and Norwegian University of Science and Technology (NTNU) - Department of Physics

Downloads 140 (524,371)

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3.

Influence of Natural Aging and Ramping Before Artificial Aging on the Microstructure of Two 6xxx Alloys

Number of pages: 21 Posted: 16 Feb 2022

Christoph Hell, Hanne-Sofie Søreide, Ruben Bjørge, Calin Marioara, Yanjun Li and Randi Holmestad

Norwegian University of Science and Technology (NTNU) - Department of Physics, affiliation not provided to SSRN, SINTEF Industry, SINTEF Industry, Norwegian University of Science and Technology (NTNU) - Department of Materials Science and Engineering and Norwegian University of Science and Technology (NTNU) - Department of Physics

Downloads 138 (537,489)

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The Microstructural Origin of a Hardness Double-Peak in an Age-Hardened EN-AW 6082

Number of pages: 18 Posted: 14 Mar 2023

Christoph Hell, Bjørn Holmedal, Ruben Bjørge, Calin Marioara and Randi Holmestad

Norwegian University of Science and Technology (NTNU) - Department of Physics, Norwegian University of Science and Technology (NTNU) - Department of Materials Science and Engineering, SINTEF Industry, SINTEF Industry and Norwegian University of Science and Technology (NTNU) - Department of Physics

Downloads 137 (534,155)

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On the Precipitation and Transformation Kinetics of Precipitation-Hardening Steel X5CrNiCuNb16‑4 in a Wide Range of Heating and Cooling Rates

Number of pages: 21 Posted: 02 Jul 2024

Benjamin Milkereit, Christian Rowolt, Dipanwita Chatterjee, Randi Holmestad, Ruben Bjørge, Matteo Villa, Frank Niessen, Andreas Stark, Frédéric De Geuser and Olaf Keßler

University of Rostock - Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Norwegian University of Science and Technology (NTNU), Norwegian University of Science and Technology (NTNU) - Department of Physics, SINTEF Industry, Technical University of Denmark, Technical University of Denmark, Helmholtz-Zentrum Hereon, University Grenoble Alpes - Grenoble INP and University of Rostock

Downloads 108 (649,907)

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Atomic Structure of Cluster in an Al-Zn-Mg Alloy with Low Zn/Mg Determined by HAADF-STEM and First-Principles Calculation

Number of pages: 13 Posted: 04 Jun 2025

Wanlalak Sanphiboon, Calin Marioara, Norio Nunomura, Taiki Tsuchiya, Shouwon Lee, Abrar Ahmed, Susumu Ikeno, Tomoo Yoshida, Sigmund Jarle Andersen, Randi Holmestad and Kenji Matsuda

University of Toyama, SINTEF Industry, University of Toyama - Graduate School of Science and Engineering, University of Toyama, University of Toyama - Graduate School of Science and Engineering, University of Toyama, University of Toyama, AISIN KEIKINZOKU Co., LTD, SINTEF Industry, Norwegian University of Science and Technology (NTNU) - Department of Physics and University of Toyama - Graduate School of Science and Engineering

Downloads 107 (654,668)

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On Vacancy and Solute Co-Segregated η1 Interface in Over-Aged Al-Zn-Mg Alloys

Number of pages: 32 Posted: 31 Dec 2020

Yizi Ou, Yong Jiang, Yiren Wang, Zhengqing Liu, Adrian Lervik and Randi Holmestad

State Key Laboratory for Powder Metallurgy, Key Laboratory for Nonferrous Metal Materials Science and Engineering (MOE), School of Materials Science and Engineering, Central South University, Central South University - State Key Laboratory of Powder Metallurgy, Central South University - State Key Laboratory of Powder Metallurgy, Central South University - State Key Laboratory of Powder Metallurgy, Department of Physics, Norwegian University of Science and Technology (NTNU) and Norwegian University of Science and Technology (NTNU) - Department of Physics

Downloads 95 (715,072)

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8.

Local Mechanical Properties and Precipitation Inhomogeneity in Large-Grained Al-Mg-Si Alloys

Number of pages: 13 Posted: 16 Sep 2022

Anette Brocks Hagen, Sigurd Wenner, Ruben Bjørge, Di Wan, Calin Marioara, Randi Holmestad and Inga Gudem Ringdalen

SINTEF Industry, SINTEF Industry, SINTEF Industry, Beijing Institute of Technology, SINTEF Industry, Norwegian University of Science and Technology (NTNU) - Department of Physics and SINTEF Industry

Downloads 81 (796,622)

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In-situ Microscale Cold Welding using a Focused Ion Beam-Scanning Electron Microscope

Micron, volume 200, 2026[10.1016/j.micron.2025.103922 ]

Number of pages: 51 Posted: 02 Apr 2025 Last Revised: 01 Oct 2025

Ambra Celotto, Randi Holmestad, Per Erik Vullum and Filippo Berto

Norwegian University of Science and Technology (NTNU), Norwegian University of Science and Technology (NTNU) - Department of Physics, Norwegian University of Science and Technology (NTNU) and Sapienza University of Rome - Department of Chemical Engineering, Materials and Environment

Downloads 72 (860,052)

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Effect of Cyclic Ageing on the Early-Stage Clustering in Al-Zn-Mg(-Cu) Alloys

Number of pages: 20 Posted: 14 Mar 2022

Sohail Shah, Elisabeth Thronsen, Sigurd Wenner, Calin Marioara, Randi Holmestad and Bjørn Holmedal

Government of the United States of America - Idaho National Laboratory, affiliation not provided to SSRN, SINTEF Industry, SINTEF Industry, Norwegian University of Science and Technology (NTNU) - Department of Physics and Norwegian University of Science and Technology (NTNU) - Department of Materials Science and Engineering

Downloads 64 (924,743)

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The Effect of Pre-Deformation on Precipitation in Al-Zn-Mg-Cu Alloy

Number of pages: 26 Posted: 09 Apr 2024

Yujin Rhee, Elisabeth Thronsen, Oskar Ryggetangen, Calin Marioara, Randi Holmestad and Equo Kobayashi

Institute of Science Tokyo, Norwegian University of Science and Technology (NTNU), Norwegian University of Science and Technology (NTNU), SINTEF Industry, Norwegian University of Science and Technology (NTNU) - Department of Physics and Tokyo Institute of Technology

Downloads 60 (961,006)

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Cu Distribution in Intermetallic Phases in Extruded Al-Mg-Si-Cu Alloys

Number of pages: 24 Posted: 10 Oct 2024

Yasuhito Kawahara, Elisabeth Thrane, Eva Anne Mørtsell, Jostein Røyset, Randi Holmestad and Kenji Kaneko

Kyushu University, Norsk Hydro ASA, Norwegian University of Science and Technology (NTNU) - Department of Materials Science and Engineering, Norsk Hydro ASA, Norwegian University of Science and Technology (NTNU) - Department of Physics and Kyushu University - Department of Materials Science and Engineering

Downloads 40 (1,183,237)

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The Effect of Zn/Mg Ratio and the Precipitation of T' in Al-Zn-Mg-Cu Alloys

Number of pages: 18 Posted: 19 May 2025

Oskar Ryggetangen, Yujin Rhee, Elisabeth Thronsen, Calin Marioara, Equo Kobayashi and Randi Holmestad

Norwegian University of Science and Technology (NTNU), Institute of Science Tokyo, Norwegian University of Science and Technology (NTNU), SINTEF Industry, Tokyo Institute of Technology and Norwegian University of Science and Technology (NTNU) - Department of Physics

Downloads 39 (1,196,171)

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14.

Effect of Cu Addition on Atomic Clusters and its Influence on the Dispersion of Precipitates in Si-Rich Al-Mg-Si Alloys

Number of pages: 28 Posted: 27 Jul 2025

Yasuhito Kawahara, Calin Marioara, Christoph Hell, Elisabeth Thrane, Eva Anne Mørtsell, Jostein Røyset, Randi Holmestad and Kenji Kaneko

Kyushu University - Department of Materials Science and Engineering, SINTEF Industry, Norwegian University of Science and Technology (NTNU) - Department of Physics, Norsk Hydro ASA, Norwegian University of Science and Technology (NTNU) - Department of Materials Science and Engineering, Norsk Hydro ASA, Norwegian University of Science and Technology (NTNU) - Department of Physics and Kyushu University - Department of Materials Science and Engineering

Downloads 36 (1,236,159)

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15.

Towards Intermediate Band Solar Cells Based on (Cr + N) Co-Doped Tio2

Number of pages: 56 Posted: 19 Aug 2025

Turid Reenaas, Thomas Brakstad, Andreas Rosnes, Randi Holmestad, Hogne Lysne, Marcus Michaelsen and Morten Kildemo

affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Norwegian University of Science and Technology (NTNU) - Department of Physics, affiliation not provided to SSRN, affiliation not provided to SSRN and affiliation not provided to SSRN

Downloads 32 (1,290,922)

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Linking Mechanical Properties to Microstructure in Pre-Deformed Al-Mg-Si-Cu Alloys with Variable Zn Content

Number of pages: 14 Posted: 31 Mar 2026

Inga Konow, Calin Marioara, J.H. Nordlien, Eva Anne Mørtsell and Randi Holmestad

Norwegian University of Science and Technology (NTNU) - Department of Physics, SINTEF Industry, Norsk Hydro ASA, Norwegian University of Science and Technology (NTNU) - Department of Materials Science and Engineering and Norwegian University of Science and Technology (NTNU) - Department of Physics

Downloads 26 (1,385,945)

Randi Holmestad

Norwegian University of Science and Technology (NTNU) - Department of Physics

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