115 citations · 349 across the 23 of their papers we have counts for
23 papers
Multistep severe plastic deformation to achieve non-rare earth bulk magnets with high α-MnBi phase content
L. Weissitsch, S. Wurster, H. Krenn +1
The ferromagnetic α-MnBi phase as non-rare earth magnetic material has gained increasing interest, but fabrication of large volumes containing a significant amount of α-MnBi is sti…
Synthesis of hard magnetic α-MnBi phase by high pressure torsion and field assisted annealing
Lukas Weissitsch, Stefan Wurster, Martin Stueckler +4
Bulk composites using powder blends of Mn and Bi with equal atomic ratios are consolidated and severely deformed by high-pressure torsion (HPT). Subsequent annealing treatments lea…
Exchange Bias Demonstrated in Bulk Nanocomposites Processed by High Pressure Torsion
Michael Zawodzki, Lukas Weissitsch, Heinz Krenn +2
Ferromagnetic (Fe or Fe20Ni80) and antiferromagnetic (NiO) phases were deformed by high pressure torsion, a severe plastic deformation technique, to manufacture bulk sized nanocomp…
Magnetoresistive behaviour of ternary Cu-based materials processed by high-pressure torsion
M. Kasalo, S. Wurster, M. Stückler +4
Severe plastic deformation using high-pressure torsion of ternary Cu-based materials (CuFeCo and CuFeNi) was used to fabricate bulk samples with a nanocrystalline microstructure. T…
Magnetron Sputtered Non-Toxic and Precious Element-Free Ti-Zr-Ge Metallic Glass Nanofilms with Enhanced Biocorrosion Resistance
Baran Sarac, Matej Micusik, Barbara Putz +7
The chemical composition and structural state of advanced alloys are the decisive factors in optimum biomedical performance. This contribution presents unique Ti-Zr-Ge metallic gla…
Manufacturing of Textured Bulk Fe-SmCo Magnets by Severe Plastic Deformation
Lukas Weissitsch, Martin Stückler, Stefan Wurster +5
Exchange-coupling between soft- and hard-magnetic phases plays an important role in the engineering of novel magnetic materials. To achieve exchange coupling, a two-phase microstru…
Oxide-stabilized microstructure of severe plastically deformed CuCo alloys
Martin Stueckler, Jakub Zalesak, Timo Mueller +7
Nanocrystalline materials are well known for their beneficial mechanical and physical properties. However, it is of utmost importance to stabilize the microstructure at elevated te…
Soft Magnetic Properties of Ultra-Strong and Nanocrystalline Pearlitic Wires
Stefan Wurster, Martin Stückler, Lukas Weissitsch +4
The paper describes the capability of magnetic softening of a coarse grained bulk material by a severe deformation technique. Connecting the microstructure with magnetic properties…
Nanocrystalline FeCr alloys synthesised by severe plastic deformation -- a potential material for exchange bias and enhanced magnetostriction
Lukas Weissitsch, Stefan Wurster, Alexander Paulischin +3
This work gives insights into processing and characterisation of bulk nanocrystalline FeCr materials. The investigated FeCr alloys, consisting of 30, 50 and 70 at.% ferromagnetic F…
Sampling the Cu-Fe-Co phase diagram by severe plastic deformation for enhanced soft magnetic properties
Martin Stückler, Stefan Wurster, Lukas Weissitsch +3
Initial powder mixtures of Cu, Fe and Co are exposed to severe plastic deformation by high-pressure torsion to prepare solid solutions. A broad range of compositions is investigate…
On the magnetic nanostructure of a Co-Cu alloy processed by high-pressure torsion
Martin Stückler, Christian Teichert, Aleksandar Matković +5
In this study, a preparation route of Co-Cu alloys with soft magnetic properties by high-pressure torsion deformation is introduced. Nanocrystalline, supersaturated single-phase mi…
Strain Induced Anisotropic Magnetic Behaviour and Exchange Coupling Effect in Fe-SmCo Permanent Magnets Generated by High Pressure Torsion
Lukas Weissitsch, Martin Stückler, Stefan Wurster +4
High-pressure torsion (HPT), a technique of severe plastic deformation (SPD), is shown as a promising processing method for exchange-spring magnetic materials in bulk form. Powder…
In situ AC-hysteresis measurements of SPD-processed Cu20(Fe15Co85)80
Martin Stückler, Stefan Wurster, Reinhard Pippan +1
The changes of magnetic properties upon heat treatment of a metastable supersaturated solid solution processed by severe plastic deformation are investigated by in-situ AC-hysteres…
Processing of nanostructured bulk Fe-Cr alloys by severe plastic deformation
Lukas Weissitsch, Martin Stückler, Stefan Wurster +2
The processing of binary alloys consisting of ferromagnetic Fe and antiferromagnetic Cr by severe plastic deformation (SPD) with different chemical compositions has been investigat…
A new approach to evaluate the elastic modulus of metallic foils
C. O. W. Trost, S. Wurster, C. Freitag +2
The accurate determination of the elastic properties is non-trivial for metallic foils. The measured elastic modulus is often described in literature as significantly smaller than…
Microstructural Changes Influencing the Magnetoresistive Behavior of Bulk Nanocrystalline Materials
Stefan Wurster, Martin Stueckler, Lukas Weissitsch +2
Bulk nanocrystalline materials of small and medium ferromagnetic content were produced using severe plastic deformation by high-pressure torsion at roomtemperature. Giant magnetore…
Intermixing of Fe and Cu on the atomic scale by high-pressure torsion as revealed by DC- and AC-SQUID susceptometry and atom probe tomography
Martin Stückler, Heinz Krenn, Philipp Kürnsteiner +6
The capability of high-pressure torsion on the preparation of supersaturated solid solutions, consisting of Cu-14Fe (wt.%), is studied. From microstructural investigations a steady…
Tuneable Magneto-Resistance by Severe Plastic Deformation
Stefan Wurster, Lukas Weissitsch, Martin Stueckler +4
Bulk metallic samples were synthesized from different binary powder mixtures consisting of elemental Cu, Co, and Fe using severe plastic deformation. Small particles of the ferroma…
Magnetic Binary Supersaturated Solid Solutions Processed by Severe Plastic Deformation
Martin Stückler, Heinz Krenn, Reinhard Pippan +3
Samples consisting of one ferromagnetic and one diamagnetic component which are immiscible at the thermodynamic equilibrium (Co-Cu, Fe-Cu, Fe-Ag) are processed by high-pressure tor…
Magnetic dilution by severe plastic deformation
Martin Stückler, Lukas Weissitsch, Stefan Wurster +4
Mixtures of Fe and Cu powders are cold-compacted and subsequently deformed with severe plastic deformation by high-pressure torsion, leading to bulk samples. The dilution of Fe in…
Fracture mechanics of micro samples: Fundamental considerations
Reinhard Pippan, Stefan Wurster, Daniel Kiener
In this review article we consider the crack growth resistance ofmicrometer and submicrometer sized samples from the fracture mechanics point of view. Standard fracture mechanics t…
An analytical solution for the correct determination of crack lengths via cantilever stiffness
Markus Alfreider, Stefan Kolitsch, Stefan Wurster +1
The present work provides an analytic solution for the stiffness to crack length relation in microscopic cantilever shaped fracture specimens based on classical beam theory and sub…
Microstructure and Failure Characteristics of Nanostructured Molybdenum Copper Composites
Katharina Schwarz, Julian Rosalie, Stefan Wurster +2
Liquid-metal infiltrated Cu30Mo70 (weigth percentage) is subjected to severe plastic deformation using high pressure torsion. The initially equiaxed dual phase structure is gradual…