Browsing Institutt for maskinteknikk og produksjon by Author "Kheradmand, Nousha"
Now showing items 1-9 of 9
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Effect of electrochemical charging on the hydrogen embrittlement susceptibility of Alloy 718
Lu, Xu; Wang, Dong; Wan, Di; Zhang, Zhenbo; Kheradmand, Nousha; Barnoush, Afrooz (Peer reviewed; Journal article, 2019)The susceptibility of age-hardened nickel-based Alloy 718 to hydrogen embrittlement was studied by the controlled electrochemical charging combined with slow strain-rate tensile tests (SSRT) and advanced characterization ... -
Environmenally assisted cracking revisited via novel miniature fracture mechanics approach in environmental scanning electron microscope
Deng, Yun (Doctoral theses at NTNU;2019:25, Doctoral thesis, 2019) -
Hydrogen Embrittlement in Fe3%Si, Visited by Nanomechanical Testing and Cohesive Zone Simulation
Olden, Vigdis; Hajilou, Tarlan; Kheradmand, Nousha; Barnoush, Afrooz; Alvaro, Antonio; Osen, Vidar (Chapter, 2016)This work is part of a multi scale computational and experimental approach in which first principle modelling, nanoscale experiments and continuum simulations are combined in order to represent hydrogen induced degradation ... -
Hydrogen-Assisted Cracking Investigated by In Situ Electrochemical Micro-Cantilever Bending Test
Hajilou, Tarlan (Doctoral theses at NTNU;2018:212, Doctoral thesis, 2018)Most high strength and high performance alloys experience a premature rupture and loss in the ductility when exposed to hydrogen. The interaction of hydrogen with dislocations and other microstructural defects such as ... -
Hydrogen-Assisted Fatigue Crack Growth in Ferritic Steels
Wan, Di (Doctoral theses at NTNU;2019:251, Doctoral thesis, 2019) -
In situ micromechanical testing in environmental scanning electron microscope: A new insight into hydrogen-assisted cracking
Rogne, Bjørn Rune; Kheradmand, Nousha; Deng, Yun; Barnoush, Afrooz (Journal article; Peer reviewed, 2018)The susceptibility of Fe–26Al–0.5Cr (at.%) intermetallic alloy to hydrogen assisted cracking was evaluated by micromechanical fracture mechanics specimens. The notched micro-beams were loaded in situ in an environmental ... -
In situ small-scale hydrogen embrittlement testing made easy: An electrolyte for preserving surface integrity at nano-scale during hydrogen charging
Hajilou, Tarlan; Hope, Malin S.B.; Hossein Zavieh, Amin; Kheradmand, Nousha; Johnsen, Roy; Barnoush, Afrooz (Journal article; Peer reviewed, 2018)An electrolyte for electrochemical hydrogen charging of corrosion-susceptible alloys is developed, which preserves the surface integrity at nano-scale by minimizing the surface roughness alternation. To assure the formation ... -
In-situ micro-cantilever bending test in environmental scanning electron microscope: Real time observation of hydrogen enhanced cracking
Deng, Yun; Hajilou, Tarlan; Wan, Di; Kheradmand, Nousha; Barnoush, Afrooz (Journal article, 2017)A novel approach of in-situ micro-cantilever bending tests is introduced, integrating nanoindentation and environmental scanning electron microscopy (ESEM) to elucidate hydrogen embrittlement (HE) in FeAl. Bending tests ... -
Small scale testing approach to reveal specific features of slip behavior in BCC metals
Kheradmand, Nousha; Rogne, Bjørn Rune Sørås; Dumoulin, Stephane; Deng, Yun; Johnsen, Roy; Barnoush, Afrooz (Peer reviewed; Journal article, 2019)Plastic behavior of Fe–3%Si was investigated with a novel methodology at microscopic scale and higher stress resolution beyond the existing macroscopic test methods. Activation of single slip system in micropillars under ...