@inproceedings{e69746d5e4d14a00a3d989d434513ba1,
title = "Study of Microstructure, Hydrogen Solubility, and Corrosion of Ta-Modified Zr–1Nb Alloys for Nuclear Applications",
abstract = "Modified Zr–1Nb alloys with Ta additions is a potential strategy to improve structural alloys for nuclear reactors. The effects of Ta on microstructural stability and resistance to corrosion of Zr–1Nb alloys were systematically investigated and elucidated. The (α+ β) microstructure in Zr–1.05Nb, Zr–0.85Nb–0.20Ta, and Zr–0.85Nb–0.40Ta (wt.%) alloys were obtained with the following two thermomechanical processes after a water quenching from βZr: (a) annealed at 570 °C for 3840 h and (b) a combination of intermediate annealing temperatures and cold rolled steps. Quantitative EDS-TEM analysis together with DSC measurements were used to characterise the changes in phase compositions and the fraction of beta-phase precipitates. Hydrogen solubility was measured in alloys with the first annealed condition. The Ta additions increase the monotectic transformation temperature, improves the steam corrosion at 400 °C and 10 MPa up to 14 days, and decreases slightly the hydrogen solubility. The higher thermal microstructural stability compared to Ta-free Zr–1Nb alloys provides potential advantages for increases in operating temperature or acceleration of precipitation kinetics during thermomechanical processing.",
keywords = "Corrosion, Hydrogen solubility, Phase transformation, Ta addition, Zr–Nb alloys",
author = "Ferreir{\'o}s, {P. A.} and Polack, {E. C.Savoy} and Lanzani, {L. A.} and Alonso, {P. R.} and Quir{\'o}s, {D. P.} and Mieza, {J. I.} and E. Zelaya and Knowles, {A. J.} and Rubiolo, {G. H.}",
note = "Funding Information: This study was supported by FonCyT, through PICT-2015-2267 and PICT-2018-01671 projects and by UNSAM, through PAI 2020-80020190200024SM project. P.A. Ferreir{\'o}s & A.J. Knowles acknowledge funding from the UK Engineering and Physical Sciences Research Council (EPSRC) Grant EP/T01220X/1. The authors would also like to thank J{\'o}han Pauli Magnussen for his help with the phase equilibrium modelling. Publisher Copyright: {\textcopyright} 2022, The Minerals, Metals & Materials Society.; 151st Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2022 ; Conference date: 27-02-2022 Through 03-03-2022",
year = "2022",
doi = "10.1007/978-3-030-92381-5_129",
language = "English",
isbn = "978-3-030-92380-8",
series = "Minerals, Metals and Materials Series",
publisher = "Springer",
pages = "1352--1362",
booktitle = "TMS 2022 151st Annual Meeting and Exhibition Supplemental Proceedings",
address = "Germany",
}