Blar i Institutt for maskinteknikk og produksjon på tittel
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The effect of Equal Channel Angular Pressing on the stress corrosion cracking susceptibility of AZ31 alloy in simulated body fluid
(Peer reviewed; Journal article, 2020)Despite the great potential of Mg and its alloys as material for biodegradable implants, their low resistance to the simultaneous action of corrosion and mechanical stresses in the human body have hampered their use. Stress ... -
Effect of equal-channel angular pressing (ECAP) and current density of cathodic hydrogen charging on hydrogen trapping in the low-alloy steel
(Peer reviewed; Journal article, 2020)Owing to the outstanding mechanical properties, the steels and other metallic materials with the ultra-fine grained (UFG) microstructure obtained by severe plastic deformation (SPD) techniques such as equal channel angular ... -
Effect of fracture mode on acoustic emission behavior in the hydrogen embrittled low-alloy steel
(Journal article; Peer reviewed, 2018)Hydrogen embrittlement (HE) of steels and other alloys is a long-standing scientific and engineering problem causing sudden premature failures of industrial components. Although several mechanisms of hydrogen-assisted ... -
Effect of Geometrical Irregularities on Fatigue of Lead Sheathing for Submarine High Voltage Power Cable Applications
(Peer reviewed; Journal article, 2021)High voltage subsea power cables are typically composed of several layers, including: a conductive core, a dielectric layer, a ductile metallic watertight barrier and a series of radial and axial armours and polymer layers. ... -
Effect of grain size on mechanical properties and hydrogen occluding capacity of pure magnesium and alloy MA14 subjected to stress-corrosion cracking
(Peer reviewed; Journal article, 2020)The high susceptibility of magnesium alloys to stress corrosion cracking (SCC) is an urgent problem that restricts their widespread application in the aerospace and automotive industries, as well as in medicine. The ... -
Effect of heat input on nanomechanical properties of wire-arc additive manufactured Al 4047 alloys
(Peer reviewed; Journal article, 2022)Heat input is one of the most important process parameters during additive manufacturing (AM). It is of great significance to understand the effect of heat input on the microstructure and nanomechanical properties, as well ... -
Effect of heat treatment and defects on the tensile behavior of a hot work tool steel manufactured by laser powder bed fusion
(Journal article; Peer reviewed, 2023)Microstructure and tensile properties of a hot work tool steel manufactured via laser powder bed fusion (LPBF) were investigated. Specimens were built under two different orientations and subjected to two quenching and ... -
Effect of heat treatment on fatigue behavior of as-built notched Co-Cr-Mo parts produced by Selective Laser Melting
(Peer reviewed; Journal article, 2021)In this paper Cobalt-Chromium-Molybdenum (Co-Cr-Mo) specimens produced by Selective Laser Melting (SLM) for biomedical field were studied. In particular, fatigue tests were carried out comparing as-built condition with Hot ... -
Effect of heat treatment on microstructure and creep behavior of Fe-40Ni-24Cr alloy
(Journal article; Peer reviewed, 2021)Iron-nickel-chromium (Fe-Ni-Cr) alloy Haynes HR120 is an iron-nickel-based superalloy, which is extensively used in gas turbines. Hence, the materials for the fabrication of steam turbine blades should present great ... -
The effect of hot air exposure on the mechanical properties and carbon dioxide permeability of hydrogenated nitrile butadiene rubber (HNBR) with varying carbon black content
(Peer reviewed; Journal article, 2020)The effect of hot air exposure at 150 �C for up to 12 weeks (ca. 2000 h) on the properties of hydrogenated nitrile butadiene rubber (HNBR) compounds with varying degrees of carbon black content was investigated and re-ported ... -
Effect of hot dip galvanization on the fatigue strength of steel bolted connections
(Journal article; Peer reviewed, 2017)Hot dip galvanized steel bolted joints has been tested under fatigue loading to evaluate the effect of galvanizing coating on the fatigue strength of S355 structural steel. The experimental results showed that the decrease ... -
Effect of Hydrogen Concentration and Strain Rate on Hydrogen Embrittlement of Ultra-Fine-Grained Low-Carbon Steel
(Chapter, 2021)During the last few decades, keen attention has been paid to the advanced steels with the ultra-fine-grained (UFG) microstructure manufactured by severe plastic deformation (SPD) techniques. Although these materials often ... -
Effect of Hydrogen in Advanced High Strength Alloys Revisited via Small Scale- In-Situ Techniques
(Doctoral theses at NTNU;2020:59, Doctoral thesis, 2020)This thesis demonstrates a comprehensive study on the interaction between hydrogen and plasticity by using in-situ fine scale testing methods. It contains small-scale tensile tests with in-situ SEM observation as well as ... -
Effect of hydrogen on deformation behavior of Alloy 725 revealed by in-situ bi-crystalline micropillar compression test
(Peer reviewed; Journal article, 2021)Nickel-based Alloy 725 bi-crystalline micropillars with different types of grain boundaries (GBs) were compressed in hydrogen-free and in-situ hydrogen-charged conditions to investigate the hydrogen effect on the deformation ... -
Effect of hydrogen on dislocation nucleation in alloy 718
(Journal article; Peer reviewed, 2017)In situ electrochemical nanoindentation has been used to study the effect of hydrogen on the nanomechanical response of Alloy 718. Observations show that hardness increase as a result of hydrogen charging. Also, the hydrogen ... -
Effect of Hydrogen on Fatigue Crack Growth in Modern Pipe Steels for Hydrogen Transport
(Master thesis, 2021)Det eksisterende olje- og gass-nettverket på norsk sokkel representerer i lys av den pågående energirevolusjonen fremtidige transportruter for hydrogen. Hydrogen er kjent for å svekke de mekaniske egenskapene til stål og ... -
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), ... -
The effect of hydrogen on the crack initiation site of TRIP-assisted steels during in-situ hydrogen plasma micro-tensile testing: Leading to an improved ductility?
(Peer reviewed; Journal article, 2020)The hydrogen induced damage and crack initiation in transformation induced plasticity (TRIP) steel is considered in the present work by micro tensile testing and subsequent microstructural assessment. Hydrogen characteristics ... -
Effect of hydrogen on the embrittlement susceptibility of Fe-22Mn-0.6C TWIP steel revealed by in-situ tensile tests
(Peer reviewed; Journal article, 2020)The hydrogen embrittlement (HE) behavior on a Fe–22Mn-0.6C twinning-induced plasticity (TWIP) steel was investigated by tensile tests with in-situ scanning electron microscope observation combined with electron backscatter ... -
Effect of hydrogen-induced surface steps on the nanomechanical behavior of a CoCrFeMnNi high-entropy alloy revealed by in-situ electrochemical nanoindentation
(Peer reviewed; Journal article, 2019)The effect of hydrogen on the nanomechanical properties of CoCrFeMnNi high-entropy alloy was investigated by in-situ electrochemical nanoindentation testing. The changes in surface morphology, elastic modulus, pop-in load, ...