Blar i NTNU Open på tidsskrift "Materials Science & Engineering: A"
Viser treff 1-20 av 69
-
Achieving high-strength metallurgical bonding between A356 aluminum and copper through compound casting
(Peer reviewed; Journal article, 2021)Due to stable surface oxides on the solid copper surface and the ease of forming Al2O3 films at the aluminum melt surface, it is difficult to achieve high-strength metallurgical bonding between the two materials through ... -
Additive manufacturing of fine-grained and dislocation-populated CrMnFeCoNi high entropy alloy by laser engineered net shaping
(Journal article; Peer reviewed, 2019)The equiatomic CrMnFeCoNi high entropy alloy is additively manufactured by the laser engineered net shaping (LENSTM) process, and the solidification conditions, phase formation, as-deposited microstructures, and tensile ... -
Additive manufacturing of TiB2-containing CoCrFeMnNi high-entropy alloy matrix composites with high density and enhanced mechanical properties
(Peer reviewed; Journal article, 2021)Near-fully dense CoCrFeMnNi high-entropy alloy (HEA) matrix composites reinforced with 5 wt% TiB2 nanoparticles were successfully additively manufactured via the laser-engineered net shaping technique. Compared to the ... -
Assessment of the potential of hydrogen plasma charging as compared to conventional electrochemical hydrogen charging on dual phase steel.
(Journal article; Peer reviewed, 2019)The present study evaluates the hydrogen induced damage by in-situ hydrogen plasma charging in dual phase (DP) steel. Cold deformation of 15% is applied on the material to change microstructural defects, such as dislocation ... -
CAFE based Multi-scale Modelling of Ductile-to-Brittle Transition of Steel with a Temperature Dependent Effective Surface Energy
(Journal article; Peer reviewed, 2019)It is still a challenge to numerically achieve the interactive competition between ductile damage and brittle fracture in ductile-to-brittle transition (DBT) region. In addition, since two types of fracture occur at two ... -
Deformation behavior, microstructure evolution, and dynamic recrystallization mechanism of an AZ31 Mg alloy under high-throughput gradient thermal compression
(Peer reviewed; Journal article, 2022)A high-throughput gradient thermal compression process was adopted to investigate the effects of thermal deformation parameters on the deformation behavior and microstructure evolution of a rolled AZ31 Mg alloy. The results ... -
Deformation of an Al-7Mg alloy with extensive structural micro-segregations during dynamic plastic deformation
(Journal article; Peer reviewed, 2015)The microstructure evolution and deformation behavior of an as-cast Al–7Mg alloy with severe Mg segregation zones distributed on grain boundaries and in interdendrite regions subjected to dynamic plastic deformation (DPD) ... -
Effect of cyclic ageing on the early-stage clustering in Al–Zn-Mg(-Cu) alloys
(Peer reviewed; Journal article, 2022)The cyclic application of mechanical stress to aluminum alloys at room temperature, referred to as cyclic ageing, continuously injects vacancies, enabling dynamic precipitation of a fine distribution of solute clusters. ... -
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 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 pre-deformation on age-hardening behaviors in an Al-Mg-Cu alloy
(Peer reviewed; Journal article, 2021)The effects of 3%–50% pre-deformation following solution heat treatment on the age hardening of an Al-3Mg-1Cu alloy have been investigated by Vickers microhardness measurement, tensile tests, differential scanning calorimetry, ... -
Effects of constituent particle content on ductile fracture in isotropic and anisotropic 6000-series aluminium alloys
(Peer reviewed; Journal article, 2021)Tension tests on smooth and notched specimens were conducted for four 6000-series aluminium alloys to assess the effects of constituent particles on ductile fracture at different stress states. Two of the alloys are ... -
Effects of cryogenic temperature and pre-stretching on mechanical properties and deformation characteristics of a peak-aged AA6082 extrusion
(Journal article; Peer reviewed, 2017)Plastic deformation studies of a peak-aged AA6082 alloy by means of tensile tests at 77 K and 295 K, and related microstructure characteristics obtained by Scanning Electron Microscopy (SEM), Electron Backscatter Diffraction ... -
Effects of heat-treatment on the plastic anisotropy of extruded aluminium alloy AA6063
(Journal article, 2017)The plastic anisotropy of aluminium alloys is known to depend not only on the crystallographic texture but also on the heat-treatment, and this effect has been studied on various alloys both experimentally and numerically. ... -
Effects of local grain size and inclusions on the low-temperature toughness of low-carbon as-quenched martensite
(Journal article; Peer reviewed, 2018)The segregation of alloying elements that occurs during the solidification of steel leads to microscale and macroscale microstructural heterogeneity that can cause anomalous mechanical behaviour. The centreline macrosegregation ... -
Enhanced ductility and strength in a cast Al–Mg alloy with high Mg content
(Journal article; Peer reviewed, 2021)Cast Al–Mg alloys with high Mg content have attracted considerable interest as a result of exceptionally low mass density and enhanced Mg solid-solution strengthening effect. However, poor ductility in this class of cast ... -
Enhanced nucleation and precipitation hardening in Al-Mg-Si(-Cu) alloys with minor Cd additions
(Peer reviewed; Journal article, 2020)This work reports a novel effect of impurity element Cd on enhancing the precipitation kinetics and increasing the peak hardness of Al–Mg–Si(–Cu) alloys during artificial ageing. It is found that the number density of age ... -
Evolution in microstructure and properties during non-isothermal annealing of a cold-rolled Al-Mn-Fe-Si alloy with different microchemistry states
(Journal article, 2015)The softening behaviour during non-isothermal annealing of a cold-rolled Al–Mn–Fe–Si model alloy was studied as a function of the state of microchemistry, in terms of the solute level of Mn, size and spatial distribution ... -
Experimental and numerical study on hydrogen-induced failure of X65 pipeline steel
(Peer reviewed; Journal article, 2024)Hydrogen-induced fracture of X65 pipeline steel under in-situ electrochemical charging is investigated by using in situ slow strain-rate tensile (SSRT) test, hydrogen diffusion test, fractography analysis, and finite element ... -
Experimental characterization of cyclic behaviour of pure lead: temperature sensitivity and strain-rate effects
(Journal article; Peer reviewed, 2023)Proton beam pulses with an energy of 20 GeV/c collide with a pure-lead based target installed in the neutron Time-Of-Flight facility (n_TOF) at the European Laboratory for Particle Physics (CERN). The interaction between ...