@article{f3332831ae9b45a59f75ad863b542b5f,
title = "Metastable Precursor Structures in Hydrogen-infused Super Duplex Stainless Steel Microstructure – An Operando Diffraction Experiment",
abstract = "We report the evolution of metastable precursor structures during hydrogen infusion in the near-surface region of a super duplex stainless steel. Grazing-incidence x-ray diffraction was employed to monitor, operando, the lattice degradation of the austenite and ferrite phases. Electrochemical hydrogen charging resulted in the splitting of the diffraction peaks of the austenite phase, suggesting the evolution of a metastable precursor structure. This may be explained by the formation of quasi-hydrides, which convert back into the austenite parent structure during hydrogen effusion. The ferrite showed less lattice deformation than the austenite and no phase transformation.",
keywords = "Duplex stainless steels, Grazing-incidence x-ray diffraction (GIXRD), Hydride, Hydrogen embrittlement, Synchrotron radiation",
author = "Cem {\"O}rnek and Alfred Larsson and Harlow, {Gary S.} and Fan Zhang and Robin Kroll and Francesco Carl{\`a} and Hadeel Hussain and Ulf Kivis{\"a}kk and Dirk Engelberg and Edvin Lundgren and Jinshan Pan",
note = "Funding Information: Cem {\"O}rnek is grateful for the financial support by T{\"U}BİTAK (The Scientific and Technological Research Council of Turkey) under contract number 118C227 within the program “2232: International Fellowship for Outstanding Researchers”. Jinshan Pan and Fan Zhang are grateful for the financial support by Vinnova (Sweden{\textquoteright}s innovation agency) under the contract number 2018-03267 within the program of “Industrial pilot projects for neutron and photon experiments at large scale research infrastructures.” Dirk L Engelberg and Robin Kroll are grateful for financial support by the Beijing Institute of Aeronautical Materials (China) . Edvin Lundgren, Alfred Larsson, and Gary Harlow acknowledge the Swedish Research Council for financial support within the program R{\"o}ntgen-{\AA}ngstr{\"o}m Cluster “In-situ High Energy X-ray Diffraction from Electrochemical Interfaces (HEXCHEM)” under the project no. 2015-06092. Edvin Lundgren, Alfred Larsson, and Gary Harlow further express their gratitude for the support from the Nanometer Structure Consortium at Lund University (nmC@LU) . All authors acknowledge Diamond Light Source for time on beamline I07 under proposal SI23388. The authors are grateful for Dr Ki-Hwan Hwang, KTH Royal Institute of Technology, and Lars H{\"a}ssler, KTH Royal Institute of Technology, for designing and 3D-printing the electrochemical cell that was used in this work. The authors are also grateful for Prof Philip Withers, University of Manchester, for valuable feedback to the research proposal for synchrotron radiation time. Dr Timo M{\"u}ller, Anton Paar GmbH, is acknowledged for helpful comments made on the work reported in this manuscript. Funding Information: Cem ?rnek is grateful for the financial support by T?B?TAK (The Scientific and Technological Research Council of Turkey) under contract number 118C227 within the program ?2232: International Fellowship for Outstanding Researchers?. Jinshan Pan and Fan Zhang are grateful for the financial support by Vinnova (Sweden's innovation agency) under the contract number 2018-03267 within the program of ?Industrial pilot projects for neutron and photon experiments at large scale research infrastructures.? Dirk L Engelberg and Robin Kroll are grateful for financial support by the Beijing Institute of Aeronautical Materials (China). Edvin Lundgren, Alfred Larsson, and Gary Harlow acknowledge the Swedish Research Council for financial support within the program R?ntgen-?ngstr?m Cluster ?In-situ High Energy X-ray Diffraction from Electrochemical Interfaces (HEXCHEM)? under the project no. 2015-06092. Edvin Lundgren, Alfred Larsson, and Gary Harlow further express their gratitude for the support from the Nanometer Structure Consortium at Lund University (nmC@LU). All authors acknowledge Diamond Light Source for time on beamline I07 under proposal SI23388. The authors are grateful for Dr Ki-Hwan Hwang, KTH Royal Institute of Technology, and Lars H?ssler, KTH Royal Institute of Technology, for designing and 3D-printing the electrochemical cell that was used in this work. The authors are also grateful for Prof Philip Withers, University of Manchester, for valuable feedback to the research proposal for synchrotron radiation time. Dr Timo M?ller, Anton Paar GmbH, is acknowledged for helpful comments made on the work reported in this manuscript. Publisher Copyright: {\textcopyright} 2020 The Authors Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",
year = "2020",
month = sep,
day = "23",
doi = "10.1016/j.corsci.2020.109021",
language = "English",
volume = "176",
journal = "Corrosion Science",
issn = "0010-938X",
publisher = "Elsevier BV",
}