Search Results - "Czeppe, T."
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Deformation induced twinning in hcp/bcc Al10Hf25Nb5Sc10Ti25Zr25 high entropy alloy – microstructure and mechanical properties
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (20-01-2021)“…High-entropy alloys of hexagonal structure commonly revealing high strength but very limited ductility, still remain a challenging task. Advanced strategy is…”
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Thermomechanical behavior of amorphous alloys based on titanium at the temperature range of the glass transition and crystallization
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (16-01-2019)“…Knowledge and systematic research on the mechanical properties of amorphous materials in the transition temperature range from amorphous to crystalline is a…”
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Composition dependence of martensitic transformation and crystal structure in Ni50Mn25Ga25-xCux Heusler alloys
Published in Intermetallics (01-06-2019)“…A detailed analysis of the influence of Cu addition on the martensitic transformation and the composition dependent transitions in Ni50-xMn25Ga25Cux Heusler…”
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Grain boundary wetting transition in Al–Mg alloys
Published in Materials letters (01-01-2017)“…The melting of coarse- and fine-grained Al–Mg alloys was studied by the differential scanning calorimetry (DSC). The transition from incomplete to complete…”
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Thermal evolution and grain boundary phase transformations in severely deformed nanograined Al–Zn alloys
Published in Acta materialia (01-12-2008)“…The structure, phase composition and thermal evolution of binary Al–Zn alloys were studied before and after high-pressure torsion (HPT) in Bridgman anvils. On…”
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Superelastic behavior of a metamagnetic Ni–Mn–Sn single crystal
Published in Journal of materials science (01-07-2018)“…A single-crystalline specimen with the composition of Ni 49.5 Mn 38.4 Sn 12.2 shows a 4.9% recoverable transformation strain upon compressive loading. The…”
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Effect of heat treatment on magnetostructural transformations and exchange bias in Heusler Ni48Mn39.5Sn9.5Al3 ribbons
Published in Acta materialia (15-01-2016)“…The influence of low temperature annealing and high temperature quenching on martensitic transformation, microstructure, magnetic and exchange bias properties…”
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Evolution of microstructure and residual stress during annealing of austenitic and ferritic steels
Published in Materials characterization (01-02-2016)“…In this work the recovery and recrystallization processes occurring in ferritic and austenitic steels were studied. To determine the evolution of residual…”
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Influence of Ni/Mn concentration ratio on microstructure and martensitic transformation in melt spun Ni–Mn–Sn Heusler alloy ribbons
Published in Journal of alloys and compounds (05-12-2014)“…•Heterogeneous microstructure was obtained in Ni–Mn–Sn Heusler melt spun ribbons.•Increase of Ni/Mn ratio changes a structure from one into two…”
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Journal Article Conference Proceeding -
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Heat effect of grain boundary wetting in Al–Mg alloys
Published in Journal of materials science (01-12-2012)“…Grain boundary wetting transitions were previously observed in the Al–Mg system. The melting of as-cast Al–5 wt% Mg and Al–10 wt% Mg alloys was studied by the…”
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Phase transformations in Al–Mg–Zn alloys during high pressure torsion and subsequent heating
Published in Journal of materials science (01-07-2013)“…The structure, phase composition, and their thermal evolution were studied in case of ternary Al–Zn–Mg alloys before and after high-pressure torsion (HPT) in…”
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First measurement of the heat effect of the grain boundary wetting phase transition
Published in Journal of materials science (01-06-2011)“…The melting of coarse- and fine-grained Al–Zn–Mg alloys was studied by the differential scanning calorimetry. The asymmetric shape of the melting curve…”
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Tem Study of Recrystallization in Ultra-Fine Grain AA3104 Alloy Processed by High-Pressure Torsion
Published in Archives of metallurgy and materials (01-04-2015)“…The effect of annealing on the microstructure and the texture development was investigated in a particle containing AA3104 aluminium alloy. The samples were…”
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Effect of the wetting of grain boundaries on the formation of a solid solution in the Al-Zn system
Published in JETP letters (01-11-2012)“…Phase transitions in the bulk and at grain boundaries in the (Al-20 wt % Zn) alloy have been studied by means of differential scanning calorimetry and…”
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Cold-consolidation of ball-milled Fe-based amorphous ribbons by high pressure torsion
Published in Scripta materialia (01-05-2004)“…Cold-consolidation using high pressure torsion (HPT) has been applied to ball-milled Fe-based amorphous ribbons to process bulk disks of approximately 9 mm in…”
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TEM study of the reverse martensitic transformation and decomposition in the NiAlCu intermetallic phase
Published in Materials chemistry and physics (28-08-2003)“…Reverse martensitic transformation and decomposition processes during heating were investigated in Ni–32Al–5Cu (at.%), by transmission electron microscopy…”
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Journal Article Conference Proceeding -
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Mechanically alloyed and hot pressed Ni–49.7Ti alloy showing martensitic transformation
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (15-07-2004)“…The Ni–49.7Ti (at.%) alloy was prepared by mechanical alloying (MA) and different steps of milling were investigated. An almost fully amorphous alloy was…”
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Wetting and premelting of triple junctions and grain boundaries in the Al–Zn alloys
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (15-11-2008)“…Phase transitions in grain boundaries (GBs) and GB triple junctions (TJs) can change drastically the properties of polycrystals. The GB and TJ wetting phase…”
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Characteristics of 100Cr6 bearing steel after thixoforming process performed with prototype device
Published in Transactions of Nonferrous Metals Society of China (01-09-2010)“…A device based on a high pressure die-casting(HPDC) machine was constructed, with a capacity to produce thixo-casts from steel. After inductive heating to the…”
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