Results 111 to 120 of about 3,105,065 (231)

Modelling of solutes in ferritic reactor pressure vessel steels

, 2020
The lifetime of a steel reactor pressure vessel (RPV) is dictated by its toughness which is gradually reduced during operation due to the elevated temperature and high energy neutron flux leading to the formation of nanoscale defects in the form of matrix damage and solute-vacancy clusters composed primarily of Cu, Mn, Ni and Si. However, the mechanics
openaire   +2 more sources

Influence of fabrication on microstructure and heat affected zone width in weldments of nuclear reactor pressure vessel steel

Materials & Design
Advanced manufacturing routes such as electron beam welding and powder metallurgy with hot isostatic pressing are increasingly used across energy and aerospace industries, where the reliable prediction of weld behavior and heat affected zone (HAZ ...
J.N. Emerson, E.H. Marrero-Jackson, G.A. Nemets, M. Topsakal, S. Gill, J.P. Wharry, M.A. Okuniewski   +6 more
doaj   +1 more source

Effect of HBr on Explosion Limits of Stoichiometric Hydrogen‐oxygen Mixture

International Journal of Chemical Kinetics, Volume 58, Issue 9, Page 646-657, September 2026.
ABSTRACT This work, based on numerical simulations, discusses the effect of HBr as an inhibitor on the explosion limit of stoichiometric hydrogen‐oxygen gas mixture in a closed spherical vessel. The numerical simulation solves the complete governing equations for mass, momentum, species and energy.
Chunkan Yu, Peter Glarborg
wiley   +1 more source

Influence of Strain Rate on the Strain Hardening Behavior of a Lean Duplex Stainless Steel

MetalMat, Volume 3, Issue 3, September 2026.
The aim of this study was to examine how strain rate influences the compressive strain‐hardening behavior of a lean duplex stainless steel LDX 2101. Microstructural analysis using electron backscatter diffraction (EBSD) revealed a strain‐induced austenite‐to‐martensite transformation.
Akilakpa Sawyerr, Eric Kotei T. Addison, Martin Owusu‐Mensah, Abdul Jaleel Mohammed, Daolun Chen   +4 more
wiley   +1 more source

Transition Metal Chalcogenides: Perspectives on Their Applications for Nitrate Reduction

ChemistryOpen, Volume 15, Issue 9, September 2026.
This review paper reports the syntheses, properties, and applications of TMCs for electrochemical reduction of nitrate to ammonia. Various studies revealed that the conversion of nitrate to ammonia is principally the electrocatalytic hydrogenation of nitrate and the rate and yield of ammonia is competitively challenged by hydrogen evolution reaction ...
Martins O. Omorogie
wiley   +1 more source

An Effect of Preparation Temperature on the Structure and Reactivity of Supported Ni–Cu Bimetallic Nanoparticles in Benzyl Phenyl Ether Hydrogenolysis

ChemistryOpen, Volume 15, Issue 9, September 2026.
Ni is active in the hydrogenolysis reaction of interest, while Cu is inactive. However, catalysts containing bimetallic particles with fewer Ni atoms per particle are more active than bimetallic particles containing more Ni. The Ni loading in individual particles can be controlled by the preparation protocol.
Raphaël Abolivier, Hans‐Georg Eckhardt, Jimmy Muldoon, Michael Fay, James A. Sullivan   +4 more
wiley   +1 more source

Recovery of neutron-irradiated VVER-440 RPV base metal and weld exposed to isothermal annealing at 343°C up to 2,000 h

Frontiers in Nuclear Engineering
Neutron irradiation causes embrittlement of reactor pressure vessel (RPV) steels. Post-irradiation annealing is capable of partly or fully restoring the unembrittled condition.
Eberhard Altstadt, Frank Bergner, Jann-Erik Brandenburg, Paul Chekhonin, Jakub Dykas, Mario Houska, Andreas Ulbricht   +6 more
doaj   +1 more source

Investigating the Iron‐Steam Process for Coupling With SOEC and SOFC: A Step Toward Integrated Hydrogen and Electricity Storage

steel research international, Volume 97, Issue 9, Page 4976-4995, September 2026.
Fixed‐bed reactor experiments (10 L) validate the iron–steam redox process, bridging material‐scale research and industrial power‐to‐power applications. Coupled with SOEC/SOFC systems, this framework defines critical interfaces for heat and gas management. Results confirm reproducible hydrogen storage and release, demonstrating technical feasibility at
Julien Göthel, Radek Vostal, Olena Volkova   +2 more
wiley   +1 more source

Thermal ageing of VVER reactor pressure vessel steel

AIP Conference Proceedings
Conference paper from APCOM 2024, pre-print reviewed ...
Jana Simeg Veternikova, Stanislav Sojak, Martin Petriska, Vladimir Slugen   +3 more
openaire   +1 more source

On the Elevated Temperature Thermal Stability of Nanoscale Mn-Ni-Si Precipitates Formed at Lower Temperature in Highly Irradiated Reactor Pressure Vessel Steels. [PDF]

Sci Rep, 2019
Almirall N, Wells PB, Ke H, Edmondson P, Morgan D, Yamamoto T, Odette GR.   +6 more
europepmc   +1 more source