People | Locations | Statistics |
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Ferrari, A. |
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Schimpf, Christian |
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Dunser, M. |
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Thomas, Eric |
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Gecse, Zoltan |
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Tsrunchev, Peter |
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Della Ricca, Giuseppe |
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Cios, Grzegorz |
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Hohlmann, Marcus |
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Dudarev, A. |
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Mascagna, V. |
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Santimaria, Marco |
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Poudyal, Nabin |
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Piozzi, Antonella |
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Mørtsell, Eva Anne |
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Jin, S. |
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Noel, Cédric |
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Fino, Paolo |
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Mailley, Pascal |
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Meyer, Ernst |
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Zhang, Qi |
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Pfattner, Raphael | Brussels |
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Kooi, Bart J. |
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Babuji, Adara |
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Pauporte, Thierry |
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Heilmaier, Martin
Newcastle University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (212/212 displayed)
- 2023Influence of the oxidation on the optical properties of Mo-Si-Ti, Ta-Mo-Cr-Al and Ta-Mo-Cr-Ti-Al alloys
- 2023Phase-Field Simulation of the Microstructure Evolution in the Eutectic Alloy NiAl-31Cr-3Mo
- 2023Plastic deformation of single crystals of the equiatomic Cr-Fe-Co-Ni medium entropy alloy – A comparison with Cr-Mn-Fe-Co-Ni and Cr-Co-Ni alloyscitations
- 2023The effect of carbides on the creep performance of Hastelloy X fabricated by laser powder bed fusioncitations
- 2023The Piezoresponse in WO3 Thin Films Due to N2-Filled Nanovoids Enrichment by Atom Probe Tomography
- 2023Revisiting analytic shear-lag models for predicting creep in composite materials
- 2023Formation of rutile (Cr,Ta,Ti)O2 oxides during oxidation of refractory high entropy alloys in Ta-Mo-Cr-Ti-Al systemcitations
- 2022Revealing the Role of Cross Slip for Serrated Plastic Deformation in Concentrated Solid Solutions at Cryogenic Temperatures
- 2022Comparison of the Internal Fatigue Crack Initiation and Propagation Behavior of a Quenched and Tempered Steel with and without a Thermomechanical Treatmentcitations
- 2022Formation and thermal stability of two-phase microstructures in Al-containing refractory compositionally complex alloyscitations
- 2022Phase Continuity, Brittle to Ductile Transition Temperature, and Creep Behavior of a Eutectic Mo–20Si–52.8Ti Alloy
- 2022Interface reactions of magnetron sputtered Si-based dual layer coating systems as oxidation protection for Mo-Si-Ti alloyscitations
- 2022Solid solution strengthening in medium- to high-entropy alloyscitations
- 2022High‐Temperature Ternary Oxide Phases in Tantalum/Niobium–Alumina Composite Materialscitations
- 2022Micro-mechanical deformation behavior of CoCrFeMnNi high-entropy alloycitations
- 2022Improving the intermediate- and high-temperature strength of L12-Co3(Al,W) by Ni and Ta additionscitations
- 2022Materials properties characterization in the most extreme environmentscitations
- 2022A novel nitridation- and pesting-resistant Cr-Si-Mo alloycitations
- 2022On the impact of the mesostructure on the creep response of cellular NiAl-Mo eutecticscitations
- 2022Plastic deformation of bulk and micropillar single crystals of Mo5Si3 with the tetragonal D8 structurecitations
- 2022On the formation of nanocrystalline aluminides during high pressure torsion of Al/Ni alternating foils and post-processing multilayer reactioncitations
- 2022Dislocation-mediated and twinning-induced plasticity of CoCrFeMnNi in varying tribological loading scenarioscitations
- 2022Role of orientation relationship for the formation of morphology and preferred orientation in NiAl-(Cr,Mo) during directional solidificationcitations
- 2022The electronic states of ITO–MoS<sub>2</sub>: Experiment and theorycitations
- 2022Coarse-Grained Refractory Composite Castables Based on Alumina and Niobiumcitations
- 2021Flexible Powder Production for Additive Manufacturing of Refractory Metal-Based Alloyscitations
- 2021Current Status of Research on the Oxidation Behavior of Refractory High Entropy Alloyscitations
- 2021Superior low-cycle fatigue properties of CoCrNi compared to CoCrFeMnNicitations
- 2021Influence of Temperature and Plastic Strain on Deformation Mechanisms and Kink Band Formation in Homogenized HfNbTaTiZrcitations
- 2021The Creep and Oxidation Behaviour of Pesting-Resistant (Mo,Ti)5Si3-Containing Eutectic-Eutectoid Mo-Si-Ti Alloyscitations
- 2021Influence of Shot Peening on the Isothermal Fatigue Behavior of the Gamma Titanium Aluminide Ti-48Al-2Cr-2Nb at 750 °Ccitations
- 2021Deformation mechanisms of CoCrFeMnNi high-entropy alloy under low-cycle-fatigue loadingcitations
- 2021Microstructure tailoring of Al-containing compositionally complex alloys by controlling the sequence of precipitation and orderingcitations
- 2021Oxidation Resistance, Creep Strength and Room-Temperature Fracture Toughness of Mo–28Ti–14Si–6C–6B Alloycitations
- 2021Oxidation mechanism of refractory high entropy alloys Ta-Mo-Cr-Ti-Al with varying Ta contentcitations
- 2021The Effect of Al on the Formation of a CrTaO<sub>4</sub> Layer in Refractory High Entropy Alloys Ta-Mo-Cr-Ti-xAlcitations
- 2021The Creep and Oxidation Behaviour of Pesting-Resistant (Mo,Ti)<sub>5</sub>Si<sub>3</sub>-Containing Eutectic-Eutectoid Mo-Si-Ti Alloyscitations
- 2021Microcantilever Fracture Tests on Eutectic NiAl–Cr(Mo) In Situ Compositescitations
- 2021Grain boundary engineering and its implications on corrosion behavior of equiatomic CoCrFeMnNi high entropy alloycitations
- 2021Development of actual powder layer height depending on nominal layer thicknesses and selection of laser parameterscitations
- 2021Quantitative Phase Prediction in Dual-Phase High-Entropy Alloys: Computationally Aided Parametric Approachcitations
- 2021Microstructural and chemical constitution of the oxide scale formed on a pesting-resistant Mo-Si-Ti alloycitations
- 2021Mo-silicide alloys for high- temperature structural applicationscitations
- 2021Microstructure and mechanical properties of high-Mn-ODS steelscitations
- 2020In Situ Thermal-Stage Fitted-STEM Characterization of Spherical-Shaped Co/MoS<sub>2</sub> Nanoparticles for Conversion of Heavy Crude Oilscitations
- 2020Origins of strength and plasticity in the precious metal based high-entropy alloy AuCuNiPdPtcitations
- 2020Dislocation-based serrated plastic flow of high entropy alloys at cryogenic temperaturescitations
- 2020A New Method for Determining the Brittle-to-Ductile Transition Temperature of a TiAl Intermetalliccitations
- 2020A zone melting device for the in situ observation of directional solidification using high-energy synchrotron x rayscitations
- 2020A new strategy to intrinsically protect refractory metal based alloys at ultra high temperaturescitations
- 2020Formation of complex intermetallic phases in novel refractory high-entropy alloys NbMoCrTiAl and TaMoCrTiAl: Thermodynamic assessment and experimental validationcitations
- 2020On the chemical and microstructural requirements for the pesting-resistance of Mo-Si-Ti alloyscitations
- 2020Microstructural changes in CoCrFeMnNi under mild tribological loadcitations
- 2020Creep of an oxidation resistant coated Mo-9Si-8B alloycitations
- 2020Characterisation of the oxidation and creep behaviour of novel Mo-Si-Ti alloyscitations
- 2020Solid solution strengthening and deformation behavior of single-phase Cu-base alloys under tribological loadcitations
- 2020Effect of Y Additions on the Oxidation Behaviour of Novel Refractory High-Entropy Alloy NbMoCrTiAl at 1000 °C in Aircitations
- 2020Dimensionless Enthalpy as Characteristic Factor for Process Control in Laser Powder Bed Fusioncitations
- 2020Microstructural investigations of novel high temperature alloys based on NiAl-(Cr,Mo)citations
- 2020Temperature dependent strengthening contributions in austenitic and ferritic ODS steelscitations
- 2020Comparison of cryogenic deformation of the concentrated solid solutions CoCrFeMnNi, CoCrNi and CoNicitations
- 2020High-temperature low cycle fatigue behavior of an equiatomic CoCrFeMnNi high-entropy alloycitations
- 2020Effect of Water Vapor on the Oxidation Behavior of the Eutectic High-Temperature Alloy Mo-20Si-52.8Ticitations
- 2020Controlling crystallographic ordering in Mo–Cr–Ti–Al high entropy alloys to enhance ductilitycitations
- 2020Magnetron Sputtered Silicon Coatings as Oxidation Protection for Mo-Based Alloyscitations
- 2020Challenges and Perspectives of the Phase Formation of Internally Oxidized PIT-Type Nb<sub>3</sub>Sn Conductorscitations
- 2020Breakdown of Varvenne scaling in (AuNiPdPt)<sub>1−x</sub>Cu<sub>x</sub> high-entropy alloyscitations
- 2019Microstructural evolution during creep of lamellar eutectoid and off-eutectoid FeAl/FeAl2 alloyscitations
- 2019Constitution, oxidation and creep of eutectic and eutectoid Mo-Si-Ti alloyscitations
- 2019On the oxidation mechanism of refractory high entropy alloyscitations
- 2019Study of indium tin oxide-MoS<sub>2</sub> interface by atom probe tomographycitations
- 2019Influence of SiC/Silica and Carbon/Silica Interfaces on the High-Temperature Creep of Silicon Oxycarbide-Based Glass Ceramics: A Case Studycitations
- 2019Precipitation behaviour and mechanical properties of a novel Al<sub>0.5</sub>MoTaTi complex concentrated alloycitations
- 2019Crystallographic ordering in a series of Al-containing refractory high entropy alloys Ta–Nb–Mo–Cr–Ti–Alcitations
- 2019In-situ alloying of AlSi10Mg+Si using Selective Laser Melting to control the coefficient of thermal expansioncitations
- 2019High-pressure torsion driven mechanical alloying of CoCrFeMnNi high entropy alloycitations
- 2018Effect of microalloying with silicon on high temperature oxidation resistance of novel refractory high-entropy alloy Ta-Mo-Cr-Ti-Alcitations
- 2018Contribution of Lattice Distortion to Solid Solution Strengthening in a Series of Refractory High Entropy Alloyscitations
- 2018Phase Evolution in and Creep Properties of Nb-Rich Nb-Si-Cr Eutecticscitations
- 2018Grain boundary sliding-induced creep of powder metallurgically produced Nb-20Si-23Ti-6Al-3Cr-4Hf
- 2018Peculiarities of deformation of CoCrFeMnNi at cryogenic temperaturescitations
- 2017Face Centred Cubic Multi-Component Equiatomic Solid Solutions in the Au-Cu-Ni-Pd-Pt Systemcitations
- 2017Creep of binary Fe-Al alloys with ultrafine lamellar microstructurescitations
- 2017Tensile creep of miniaturized specimenscitations
- 2017Phase-field simulation of the microstructure evolution in the eutectic NiAl-34Cr systemcitations
- 2017The effect of the ternary elements B, Ti, Cr, Cu, and Mo on fully lamellar FeAl + FeAl<sub>2</sub> alloyscitations
- 2017Combinatorial exploration of the High Entropy Alloy System Co-Cr-Fe-Mn-Nicitations
- 2017High-Resolution Studies on Nanoscaled Ni/YSZ Anodescitations
- 2017Optimisation of selective laser melting parameters for the Ni-based superalloy IN-738 LC using Doehlert's designcitations
- 2017Effect of minor alloying elements on crack-formation characteristics of Hastelloy-X manufactured by selective laser meltingcitations
- 2017Enhanced Oxidation Resistance of Mo–Si–B–Ti Alloys by Pack Cementationcitations
- 2017Characterization of Oxidation Kinetics of Mo–Si–B-Based Materialscitations
- 2017Effect of Ti addition on the thermal expansion anisotropy of Mo<sub>5</sub>Si<sub>3</sub>citations
- 2017Microstructure formation and resistivity change in CuCr during rapid solidificationcitations
- 2017High-Temperature Oxidation Behavior of Refractory High-Entropy Alloys: Effect of Alloy Compositioncitations
- 2017Effect of Ti content and nitrogen on the high-temperature oxidation behavior of (Mo,Ti)<sub>5</sub>Si<sub>3</sub>citations
- 2017Coarsening kinetics of lamellar microstructures: Experiments and simulations on a fully-lamellar Fe-Al in situ compositecitations
- 2016Microstructure and mechanical properties at elevated temperatures of a new Al-containing refractory high-entropy alloy Nb-Mo-Cr-Ti-Alcitations
- 2016The Al-Rich Part of the Fe-Al Phase Diagramcitations
- 2016Microstructure Evolution in a New Refractory High-Entropy Alloy W-Mo-Cr-Ti-Alcitations
- 2016Physically motivated model for creep of directionally solidified eutectics evaluated for the intermetallic NiAl-9Mocitations
- 2016High-temperature creep behavior of a SiOC glass ceramic free of segregated carboncitations
- 2016Synthesis and high-temperature creep behavior of a SiLuOC-based glass-ceramiccitations
- 2016Orientation relationship of eutectoid FeAl and FeAl<sub>2</sub>citations
- 2016Effect of strain-rate on the deformation response of D0<sub>3</sub>-ordered Fe<sub>3</sub>Alcitations
- 2016Investigation of CuCr contact materials for the vacuum switching technology,Untersuchung von CuCr- Kontaktwerkstoffen für die Vakuumschalttechnik
- 2016High temperature oxidation behavior of an equimolar refractory metal-based alloy [Formula presented] with and without Si additioncitations
- 2016Influence of post heat treatments on anisotropy of mechanical behaviour and microstructure of Hastelloy-X parts produced by selective laser meltingcitations
- 2015Oxidation behavior of pack-cemented Si-B oxidation protection coatings for Mo-Si-B alloys at 1300°Ccitations
- 2015Phase equilibria, microstructure, and high temperature oxidation resistance of novel refractory high-entropy alloyscitations
- 2015The influence of microstructural features on the electrical conductivity of solid phase sintered CuCr compositescitations
- 2015Hall-petch breakdown at elevated temperaturescitations
- 2015Creep Resistance and Oxidation Behavior of Novel Mo-Si-B-Ti Alloyscitations
- 2015Mechanisms of oxide scale formation on yttrium-alloyed Mo-Si-B containing fine-grained microstructurecitations
- 2015Magnetron Sputtered Mo(Si<sub>x</sub>,Al<sub>1−x</sub>)<sub>2</sub> Oxidation Protection Coatings for Mo–Si–B Alloyscitations
- 2015Influence of Vanadium on the Oxidation Resistance of the Intermetallic Phase Nb<sub>5</sub>Si<sub>3</sub>citations
- 2015Experimental and Numerical Investigation on the Phase Separation Affected by Cooling Rates and Marangoni Convection in Cu-Cr Alloyscitations
- 2015Oxidation Behavior of Binary Aluminium-Rich Fe–Al Alloys with a Fine-Scaled, Lamellar Microstructurecitations
- 2014Influence of zirconium content on microstructure and creep properties of Mo-9Si-8B alloyscitations
- 2014Influence of Powder Metallurgical Processing Routes on Phase Formations in a Multicomponent NbSi-Alloycitations
- 2014Influence of Directional Solidification on the Creep Properties of a Binary NbSi Eutectic Alloycitations
- 2014Oxidation mechanisms of lanthanum-alloyed Mo-Si-Bcitations
- 2014Correlation between microstructure and properties of fine grained Mo-Mo<sub>3</sub>Si-Mo<sub>5</sub>SiB<sub>2</sub> alloyscitations
- 2014High-temperature creep and oxidation behavior of Mo-Si-B alloys with high Ti contentscitations
- 2014High-temperature oxidation behavior of Mo-Si-B-based and Co-Re-Cr-based alloyscitations
- 2014Oxidation behavior of magnetron sputtered double layer coatings containing molybdenum, silicon and boroncitations
- 2014High-temperature creep behavior of SiOC glass-ceramics: Influence of network carbon versus segregated carboncitations
- 2013Influence of fiber alignment on creep in directionally solidified NiAl-10Mo in-situ compositescitations
- 2013A study on effect of reactive and rare earth element additions on the oxidation behavior of Mo-Si-B systemcitations
- 2013The effect of micro-alloying with Zr and Nb on the oxidation behavior of Fe<sub>3</sub>Al and FeAl alloyscitations
- 2013Microstructural and micro-mechanical properties of Mo-Si-B alloyed with Y and Lacitations
- 2013Effect of yttrium alloying on intermediate to high-temperature oxidation behavior of Mo-Si-B alloyscitations
- 2013Effect of phase architecture on the thermal expansion behavior of interpenetrating metal/ceramic composites
- 2013Effects of Zr additions on the microstructure and the mechanical behavior of PM Mo-Si-B alloyscitations
- 2013Effect of Ti (Macro-) alloying on the high-temperature oxidation behavior of ternary Mo-Si-B alloys at 820-1,300 Ccitations
- 2012Potential of mechanical surface treatment for mould and die productioncitations
- 2012On the estimation of true hall-Petch constants and their role on the superposition law exponent in al alloyscitations
- 2012The effects of boron addition on the microstructure and mechanical properties of Co-Re-based high-temperature alloyscitations
- 2012High-temperature oxidation behaviour of a single-phase (Mo,Ti) <sub>5</sub>Si <sub>3</sub> (Mo-Si-Ti) alloycitations
- 2012Two strain-hardening mechanisms in nanocrystalline austenitic steel: An in situ synchrotron X-ray diffraction studycitations
- 2011Effect of yttria particle size on the microstructure and compression creep properties of nanostructured oxide dispersion strengthened ferritic (Fe-12Cr-2W-0.5Y2O3) alloycitations
- 2011Oxidation behavior of Mo-Si-B-(X) alloys: Macro- and microalloying (X= Cr, Zr, La <sub>2</sub>O <sub>3</sub>)citations
- 2011Modification of Mo-Si alloy microstructure by small additions of Zrcitations
- 2011Temperature dependence of the strength of fine- and ultrafine-grained materialscitations
- 2011Phase continuity in high temperature Mo-Si-B alloys: A FIB-Tomography Studycitations
- 2010High temperature creep behaviour of Al-rich Ti-Al alloys
- 2010Influence of processing on the microstructure and mechanical behaviour of Mo-Si-B alloyscitations
- 2010Low cycle fatigue of Fe<sub>3</sub>Al-based iron aluminide with and without Crcitations
- 2010Microstructural studies on nanocrystalline oxide dispersion strengthened austenitic (Fe-18Cr-8Ni-2W-0.25Y<sub>2</sub>O<sub>3</sub>) alloy synthesized by high energy ball milling and vacuum hot pressingcitations
- 2010Synthesis and characterization of lamellar and fibre-reinforced NiAl-Mo and NiAl-Crcitations
- 2010Compression creep studies of mechanically alloyed nanostructured Fe-12Cr-2W-0.25Y<sub>2</sub>O<sub>3</sub> ODS alloycitations
- 2010Creep strength of a binary Al<sub>62</sub>Ti<sub>38</sub> alloycitations
- 2010On the Hall-Petch relationship in a nanostructured Al-Cu alloycitations
- 2010L2<sub>1</sub>-ordered Fe-Al-Ti alloyscitations
- 2010Recent advances in the development of mechanically alloyed Mo silicide alloyscitations
- 2009Ultrafine-grained nanocluster-strengthened alloys with unusually high creep strengthcitations
- 2009Creep strength of centrifugally cast Al-rich TiAl alloyscitations
- 2009Metallic materials for structural applications beyond nickel-based superalloyscitations
- 2009Microstructure and mechanical properties of nanostructured Al-4Cu alloy produced by mechanical alloying and vacuum hot pressingcitations
- 2009Ductilization of Mo-Si solid solutions manufactured by powder metallurgycitations
- 2009Characterization of microstructures, mechanical properties, and oxidation behavior of coherent A2 + L2<sub>1</sub> Fe-Al-Ticitations
- 2009Microstructures of Co-Re-Cr, Mo-Si and Mo-Si-B high-temperature alloyscitations
- 2009High temperature strength and failure of the Ni-base superalloy PM 3030citations
- 2009Creep behavior and damage of Ni-base superalloys PM 1000 and PM 3030citations
- 2008Mechanically alloyed Mo-Si-B alloys with a continuous α-Mo matrix and improved mechanical propertiescitations
- 2008Microstructure and mechanical properties of ultra fine grained Cu-Zn and Cu-Al alloys produced by cryorolling and annealingcitations
- 2008Molybdenum alloys for high temperature applications in aircitations
- 2007Assessment of the high temperature deformation behavior of molybdenum silicide alloyscitations
- 2007High temperature deformation behavior of a mechanically alloyed Mo silicide alloy
- 2007FEM-simulation of real and artificial microstructures of Mo-Si-B alloys for elastic properties and comparison with analytical methodscitations
- 2007The influence of silicon on the strength and fracture toughness of molybdenumcitations
- 2006Superplasticity of a multiphase refractory Mo-Si-B alloycitations
- 2006Assessment of creep behaviour of the die-cast cylinder-head alloy AlSi6Cu4-T6citations
- 2006Ductility and impact resistance of powder-metallurgical molybdenum-rhenium alloyscitations
- 2005On the Orowan stress in intermetallic ODS alloys and its superposition with grain size and solid solution hardeningcitations
- 2005Assessment of a powder metallurgical processing route for refractory metal silicide alloyscitations
- 2005Dependence of mechanical strength on grain structure in the γ′ and oxide dispersion-strengthened nickelbase superalloy PM 3030citations
- 2005Elevated temperature deformation behavior of Zr-based bulk metallic glassescitations
- 2004Creep behaviour of ultrafine-grained oxide dispersion strengthened copper prepared by cryomillingcitations
- 2004Novel dispersion strengthened metals by mechanical alloyingcitations
- 2004Microstructure and room temperature hardening of ultra-fine-grained oxide-dispersion strengthened copper prepared by cryomillingcitations
- 2004Characterization of an industrially processed Mo-based silicide alloycitations
- 2004Microstructure and deformation behaviour of ultra-fine-grained ODS copper prepared by mechanical alloying
- 2004Modelling of particle strengthening in the γ′ and oxide dispersion strengthened nickel-base superalloy PM3030citations
- 2004Superplasticity in Zr-based bulk metallic glasses: A critical overview
- 2003Supersaturated solid solution of niobium in copper by mechanical alloyingcitations
- 2003A critical assessment of high temperature creep and fatigue of ODS Ni-base superalloys
- 2003Oxide dispersion-strengthened silver: Manufacturing and propertiescitations
- 2003Creep properties of boron-doped dual-phase Ti-rich L1<sub>2</sub>-based trialuminide intermetallicscitations
- 2003Free volume evolution in bulk metallic glass during high temperature creep
- 2002High-strength, high-nitrogen stainless steel-copper composite wires for conductors in pulsed high-field magnetscitations
- 2002Microstructure and mechanical properties of Cu-Ag microcomposites for conductor wires in pulsed high-field magnetscitations
- 2002Fatigue behavior of duplex treated TiC<sub>x</sub>N<sub>l-x</sub>-and Ti<sub>l-x</sub>Al<sub>x</sub>N-hard coating steel compoundscitations
- 2002Thermal relaxation and high temperature creep of Zr<sub>55</sub>Cu<sub>30</sub>Al<sub>10</sub>Ni<sub>5</sub> bulk metallic glasscitations
- 2002Superposition of grain size and dispersion strengthening in ODS Ll<sub>2</sub>- (Al,Cr)<sub>3</sub> Ticitations
- 2002A unified description of creep in pure and dispersion-strengthened coppercitations
- 2001Order strengthening in the cast nickel-based superalloy IN 100 at room temperaturecitations
- 2001High-strength pearlitic steel-copper composite wires for conductors in pulsed high-field magnetscitations
- 2001Nanostructured materials in multicomponent alloy systemscitations
- 2001Bulk nanostructured multicomponent alloys
- 2001Deformation behavior of Zr-based metallic glassescitations
- 2001Plastic anisotropy of textured ODS nickel-base alloy PM 1000citations
- 2001Development of high-strength and high-conductivity conductor materials for pulsed high-field magnets at Dresdencitations
- 2001Bulk nanostructured Zr-based multiphase alloys with high strength and good ductilitycitations
- 2001On the high temperature creep and relaxation behaviour of Zr-based bulk metallic glasses
- 2000Cyclic stress-strain response of the ODS nickel-base, superalloy PM 1000 under variable amplitude loading at high temperaturescitations
- 2000Monotonic and cyclic high temperature deformation behavior of the ODS nickel-base superalloy PM 1000
- 2000Glass transition, viscosity of the supercooled liquid and crystallization behaviour of Zr-Al-Cu-Ni-Fe metallic glassescitations
- 2000New method of determining strength and fracture toughness of thin hard coatingscitations
- 2000Newtonian flow of Zr<sub>55</sub>Cu<sub>30</sub>Al<sub>10</sub>Ni<sub>5</sub> bulk metallic glassy alloyscitations
- 2000Synthesis and properties of Zr-based metallic glasses and glass-matrix compositescitations
- 2000High-temperature deformation behavior of PM 2000 single crystals
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conferencepaper
High temperature creep behaviour of Al-rich Ti-Al alloys
Abstract
Compared to Ti-rich γ-TiAl-based alloys Al-rich Ti-Al alloys offer an additional reduction of in density and a better oxidation resistance which are both due to the increased Al content. Polycrystalline material was manufactured by centrifugal casting. Microstructural characterization was carried out employing light-optical, scanning and transmission electron microscopy and XRD analyses. The high temperature creep of two binary alloys, namely Al60Ti40 and Al62Ti38 was comparatively assessed with compression tests at constant true stress in a temperature range between 1173 and 1323 K in air. The alloys were tested in the cast condition (containing various amounts of the metastable phases Al5Ti3 and h-Al2Ti) and after annealing at 1223 K for 200 h which produced (thermodynamically stable) lamellar γ-TiAl + r-Al2Ti microstructures. In general, already the as-cast alloys exhibit a reasonable creep resistance at 1173 K. Compared with Al60Ti40, both, the as-cast and the annealed Al62Ti38 alloy exhibit better creep resistance up to 1323 K which can be rationalized by the reduced lamella spacing. The assessment of creep tests conducted at identical stress levels and varying temperatures yielded apparent activation energies for creep of Q = 430 kJ/mol for the annealed Al60Ti40 alloy and of Q = 383 kJ/mol for the annealed Al62Ti38 material. The latter coincides well with that of Al diffusion in γ-TiAl, whereas the former can be rationalized by the instability of the microstructure containing metastable phases.