Magnus Hörnqvist Colliander
Min forskning handlar främst om att förstå kopplingar mellan process, struktur och egenskaper hos avancerade högprestandamaterial på en grundläggande nivå. Detta kräver utveckling och användande av metoder för in-situ karaktärisering med hjälp at elektronmikroskop eller stora infrastrukturanläggningar (synkrotroner eller neutronkällor). Ett särskilt fokus ligger på användandet av tidsupplösta in-situ metoder baserade på spridning och diffraktion av synkrotronljus och neutroner för att studera beteendet under representativa termiska/mekaniska cykler, samt mätning av lokala egenskaper hos individuella faser, korn och gränsytor på en mikroskala. Målet är att bidra till utvecklingen av nya och förbättrade material, främst med avseende på temperaturstabilitet och mekaniska egenskaper, som kan möjliggöra minskad miljöpåverkan både under tillverkning och användning. För att åstadkomma det tillämpas den mer grundläggande forskningen i samarbetsprojekt med industrin.

Visar 74 publikationer
Precipitation of γ’ during cooling of nickel-base superalloy Haynes 282
Dynamic and Post-Dynamic Recrystallization of Haynes 282 below the Secondary Carbide Solvus
Fracture of Cr2O3 single crystals on the microscale
Elastic-viscoplastic self-consistent modeling for finite deformation of polycrystalline materials
Fatigue crack growth of electron beam melted TI-6AL-4V in high-pressure hydrogen
Wire-Based Additive Manufacturing of Ti-6Al-4V Using Electron Beam Technique
Complete precipitate dissolution during adiabatic shear localisation in a Ni-based superalloy
Precipitation Kinetics and Morphology of Grain Boundary Carbides in Ni-Base Superalloy Haynes 282
Microscale fracture of chromia scales
Strain Rate Effects on Fracture Behavior of Austempered Ductile Irons
Ni nanocluster composites for enhanced impact resistance of multilayered arc-PVD ceramic coatings
Anisotropy effects during dwell-fatigue caused by δ-phase orientation in forged Inconel 718
Intergranular Oxidation Effects During Dwell-Time Fatigue of High-Strength Superalloys
Influence of dwell time on fatigue crack propagation in Alloy 718 laser welds
Crack Growth Studies in a welded Ni-base superalloy
Modelling and simulation of dynamic recrystallization (DRX) in OFHC copper at very high strain rates
Nano-scale characterization of white layer in broached Inconel 718
Effect of microstructure on dynamic shear localisation in Alloy 718
Deformation and Failure of OFHC Copper under high strain rate shear compression
Time- and cycle-dependent crack propagation in Haynes 282
Dynamic Recrystallization During High-Strain-Rate Tension of Copper
Microstructural examination of shear localisation during high-strain-rate deformation of Alloy 718
Influence of carbide distribution on ductility of Haynes®282® forgings
Early stages of spinodal decomposition in Fe–Cr resolved by in-situ small-angle neutron scattering
Multi-scale, multi-technique investigation of oxidation assisted cracking
Phase Separation in Fe-Cr Alloys Studied by Small Angle Neutron Scattering
Correlation between crack length and load drop for low-cycle fatigue crack growth in Ti-6242
Deformation and texture evolution of OFHC copper during dynamic tensile extrusion
Numerical Simulation of Dynamic Tensile Extrusion Test of OFHC Copper
Low-Cycle Fatigue Crack Growth in Ti-6242 at Elevated Temperature
Reduced Dwell-Fatigue Resistance in a Ni-Base Superalloy After Short-Term Thermal Exposure
Anisotropy of Room Temperature Ductility in Haynes 282 Forgings
Identification of microscale strain fields from in-situ SEM images of a pearlitic steel using DIC
Estimation of microscale strain fields in a pearlitic steel using DIC and in-situ SEM
High-temperature crack growth in a Ni-base superalloy during sustained load
Fatigue crack growth behaviour of forged Ti-6Al-4V in gaseous hydrogen
Dynamic strain aging in Haynes 282 superalloy
Intergranular crack tip oxidation in a Ni-base superalloy
Fracture mechanisms during intergranular hold time fatigue crack growth in Inconel 718 superalloy
Experiments and modelling of the cyclic behaviour of Haynes 282
High temperature fatigue crack growth in Alloy 718 - Effect of tensile hold times
Influence of high temperature hold times on the fatigue crack propagation in Inconel 718
Fatigue crack growth testing using varying R-ratios
Dynamic strain ageing and dynamic precipitation in AA7030 during cyclic deformation
Fatigue crack growth in Ti-6242 under elasto-plastic loading conditions
Fatigue crack growth behaviour of Inconel 718 with high temperature hold times
Effect of heat treatment on the strain hardening behaviour of an Al-Zn-Mg alloy
Influence of Heat Treatment on the Cyclic Deformation Properties of Aluminium Alloy AA7030
Temperature and Strain Rate Effects on the Work Hardening of AA7030
Monotonic and Cyclic Plastic Deformation of High-Strength Aluminium Alloys
Unloading stiffness of near fully pearlitic steel UIC-R8/R8T during cyclic plastic straining
Temperature and strain rate dependence of the dynamic strain ageing effect in an Al-Zn-Mg alloy
Temperature and Strain Rate Effects on the Dynamic Strain Ageing of AA7030
The Plastic Flow Behaviour of Aluminium Alloys Exhibiting Dynamic Strain Ageing
Dynamic strain ageing effects in an extruded AA 7030 alloy subjected to tensile deformation
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Visar 14 forskningsprojekt
Synkrotron-nano-diffraktion för avancerade CVD skikt
Utveckling av nästa generations MoSi2 högtemperaturmaterial
Experimentell mikromekanik i tre dimensioner
Analys och modelleringstjänst för tekniska material studerad med neutroner
Termo-mekanisk formning av nickel-baserade superlegeringar (TherMechPro)
Provmiljö för nano-mekanisk provning på MAX IV
Self-consistent modelling for neutron scattering applications
In-situ mekanisk provning vid ultra-höga temperaturer vid BEER
Enabling energy savings through additive manufacturing – The effect of going small
Oxidationsbefrämjad spricktillväxt i gasturbinmaterial
Mikro-mekanisk in-situ-provning av gränsytor för flerskalemodellering av brottförlopp