Blar i Institutt for maskinteknikk og produksjon på tidsskrift "Acta Materialia"
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Effect of electrochemical charging on the hydrogen embrittlement susceptibility of Alloy 718
(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 ... -
Effect of hydrogen on nanomechanical properties in Fe-22Mn-0.6C TWIP steel revealed by in-situ electrochemical nanoindentation
(Journal article; Peer reviewed, 2018)In-situ electrochemical nanoindentation was applied to study the effect of hydrogen on the mechanical properties of Fe-22Mn-0.6C TWIP steel at nanoscale. Distinctive behaviors in three defined grain orientations: (001), ... -
Hydrogen embrittlement revealed via novel in situ fracture experiments using notched micro-cantilever specimens
(Journal article, 2018)The susceptibility of the FeAl intermetallic alloy to hydrogen-assisted cracking was investigated by in situ fracture experiments using notched micrometre-sized specimens using an Environmental Scanning Electron Microscope ... -
Hydrogen-enhanced fatigue crack growth in a single-edge notched tensile specimen under in-situ hydrogen charging inside an environmental scanning electron microscope
(Journal article; Peer reviewed, 2019)Fatigue crack growth (FCG) test was done on a pre-cracked single-edge notched tensile (SENT) specimen with oligocrystalline ferritic structure. Innovative in-situ hydrogen (H)- charging by plasma inside an environmental ... -
Hydrogen-enhanced grain boundary vacancy stockpiling causes transgranular to intergranular fracture transition
(Journal article; Peer reviewed, 2022)The attention to hydrogen embrittlement (HE) has been intensified recently in the light of hydrogen as a carbon-free energy carrier. Despite worldwide research, the multifaceted HE mechanism remains a matter of debate. ... -
In situ characterization of the functional degradation of a [001¯] orientated Fe–Mn–Al–Ni single crystal under compression using acoustic emission measurements
(Peer reviewed; Journal article, 2021)Acoustic emission (AE) measurements were conducted in situ during cyclic compressive loading on an orientated single crystal of Fe-Mn-Al-Ni shape memory alloy to study functional degradation of its superelastic response. ... -
In situ micromechanical testing in environmental scanning electron microscope: A new insight into hydrogen-assisted cracking
(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 ... -
Inhibiting stress corrosion cracking by removing corrosion products from the Mg-Zn-Zr alloy pre-exposed to corrosion solutions
(Peer reviewed; Journal article, 2021)Magnesium and its alloys are susceptible to stress-corrosion cracking (SCC), which can manifest itself during the slow-strain rate tensile (SSRT) testing in air if the specimens were pre-exposed to corrosive media. This ... -
Kinetics of cyclically-induced mechanical twinning in γ-TiAl unveiled by a combination of acoustic emission, neutron diffraction and electron microscopy
(Peer reviewed; Journal article, 2021)The cyclic response and the microstructure evolution of the near γ-TiAl alloy are investigated by a blend of contemporary experimental techniques centred around in-situ acoustic emission (AE) measurements reflecting the ... -
Neutron diffraction study of temperature-dependent elasticity of B19′ NiTi---Elinvar effect and elastic softening
(Peer reviewed; Journal article, 2019)The temperature-dependent elasticity of the B19′ NiTi is unknown today. To gain insights into the lattice-level temperature-dependent elasticity of the B19′ crystal, we present results of in-situ neutron diffraction ... -
Small scale testing approach to reveal specific features of slip behavior in BCC metals
(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 ...