Results 31 to 40 of about 43,857 (286)

Hydrogen Embrittlement of Aluminum: the Crucial Role of Vacancies

, 2005
We report first-principles calculations which demonstrate that vacancies can combine with hydrogen impurities in bulk aluminum and play a crucial role in the embrittlement of this prototypical ductile solid.
Efthimios Kaxiras, Gang Lu, H. K. Birnbaum, P. Ehrhart   +3 more
core   +1 more source

Effect of water vapor on the spallation of thermal barrier coating systems during laboratory cyclic oxidation testing. [PDF]

, 2009
The effect of water and water vapor on the lifetime of Ni-based superalloy samples coated with a typical thermal barrier coating system—b-(Ni,Pt)Al bond coat and yttria stabilized zirconia (YSZ) top coat deposited by electron beam physical vapor ...
AG Evans, BA Pint, CT Liu, D Renusch, D. Monceau, EP George, GL Chen, H-E Zschau, JL Smialek, JL Smialek, JL Smialek, M Rudolphi, R Janakiraman, RT Wu, S. Hervier, T Takasugi, V Sergo, V Tolpygo, V. Déneux, Y. Cadoret, Z-Y Deng, Z-Y Deng, Z-Y Deng   +22 more
core   +3 more sources

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

Impact of specimen preparation method on photovoltaic backsheet degradation during accelerated aging test

Energy Science & Engineering, 2022
In this study, we highlight some important factors in the specimen preparation methods for evaluating photovoltaic backsheet properties after accelerated aging.
Ji Xia, Yi Liu, Hongjie Hu, Xiaogang Zhu, Hao Lv, Nancy H. Phillips, Kaushik Roy Choudhury, William J. Gambogi, Marisol Rodriguez, Ethan S. Simon, Michael Kempe, Joshua Morse   +11 more
doaj   +1 more source

Embrittlement of WCLL blanket and its fracture mechanical assessment

Nuclear Fusion, 2023
In the European fusion programme, the Water Cooled Lithium Lead breeding blanket (WCLL BB) uses EUROFER as a structural material cooled with water at temperatures between 295 °C–328 °C and a pressure of 155 bar.
Jarir Aktaa, Ermile Gaganidze, Gaetano Bongioví, Pietro Arena, Gandolfo Alessandro Spagnuolo, Giacomo Aiello, Pierluigi Chiovaro, Christian Bachmann   +7 more
doaj   +1 more source

Initiation of hydrogen induced cracks at secondary phase particles [PDF]

, 2020
The goal of this work is to propose a general mechanism for hydrogen induced crack initiation in steels based on a microstructural study of multiple steel grades.
Claeys, Lisa, De Seranno, Tim, Depover, Tom, Laureys, Aurélie, Pinson, Margot, Verbeken, Kim   +5 more
core   +3 more sources

The fingerprint method for analysis of thermal desorption spectra

npj Materials Degradation
The analysis of thermal desorption spectra (TDS) and the calculation of hydrogen detrapping activation energies rely on Gaussian peak deconvolution and Choo-Lee plot regression since 1982.
Philipp Hammer, Oleg E. Peil, Ahmad Azizpour, Liese Vandewalle, Kim Verbeken, Tom Depover, Vsevolod I. Razumovskiy   +6 more
doaj   +1 more source

The effects of flux on the radiation-induced embrittlement of reactor pressure vessel steels: review of current understanding and application to high fluences

Frontiers in Nuclear Engineering
It is necessary to quantify the effects of flux on reactor pressure vessel steel embrittlement under neutron irradiation, if surveillance or high-flux test reactor data is used to predict vessel embrittlement occurring at lower fluxes.
Susan Ortner, Paul Styman, Elliot Long
doaj   +1 more source

Characterization of Macro/Microstructure and Corrosion Resistance of Austenitic Gas Tungsten Arc Welding Cladding

Advanced Engineering Materials, EarlyView.
Cladding is a proven method that boosts the surface qualities of mechanical parts by applying a layer of more durable material over a base substrate. This work responds to the needs of offshore and pressure vessels sectors by focusing on cladding a super austenitic steel onto low‐carbon steel through gas tungsten arc welding.
E. J. da Cruz Junior, F. M. F. A. Varasquim, F. O. Carvalho, L. F. F. Santiago, V. A. Ventrella, I. Calliari, M. Pigato   +6 more
wiley   +1 more source

Influence of Heat Treatments on the Impact Toughness of a Ti-stabilized 12%Cr Supermartensitic Stainless Steel [PDF]

Materials Research, 2017
The supermartensitic stainless steels (SMSS) are a relatively new class of corrosion resistant alloys developed to obtain a better combination of weldability, strength, toughness and corrosion resistance than conventional martensitic stainless steels ...
Sérgio Souto Maior Tavares, Hamilton Ferreira Abreu, Telmo Roberto Strohaecker, Mariana Bertonceli Silva, Marcelo Camargo Severo de Macêdo   +4 more
doaj   +2 more sources