89 citations · 689 across the 18 of their papers we have counts for
18 papers
Roughness evolution induced by third-body wear
Joaquin Garcia-Suarez, Tobias Brink, Jean-François Molinari
Surface roughness is a key factor when it comes to friction and wear, as well as to other physical properties. These phenomena are controlled by mechanisms acting at small scales,…
Atomic resolution observations of silver segregation in a [111] tilt grain boundary in copper
Lena Langenohl, Tobias Brink, Gunther Richter +2
Alloying a material and hence segregating solutes to grain boundaries is one way to tailor a material to the demands of its application. Direct observation of solute segregation is…
Universality of grain boundary phases in fcc metals: Case study on high-angle [111] symmetric tilt grain boundaries
Tobias Brink, Lena Langenohl, Hanna Bishara +1
Grain boundaries often exhibit ordered atomic structures. Increasing amounts of evidence have been provided by transmission electron microscopy and atomistic computer simulations t…
Breakdown of Reye's theory in nanoscale wear
Joaquin Garcia-Suarez, Tobias Brink, Jean-François Molinari
Building on an analogy to ductile fracture mechanics, we quantify the size of debris particles created during adhesive wear. Earlier work suggested a linear relation between tangen…
Dual phase patterning during a congruent grain boundary phase transition in elemental copper
Lena Frommeyer, Tobias Brink, Rodrigo Freitas +3
The phase behavior of grain boundaries can have a strong influence on interfacial properties. Little is known about the emergence of grain boundary phases in elemental metal system…
Understanding grain boundary electrical resistivity in Cu: the effect of boundary structure
Hanna Bishara, Subin Lee, Tobias Brink +2
Grain boundaries (GBs) in metals usually increase electrical resistivity due to their distinct atomic arrangement compared to the grain interior. While the GB structure has a cruci…
Effect of wear particles and roughness on nanoscale friction
Tobias Brink, Enrico Milanese, Jean-François Molinari
Frictional contacts lead to the formation of a surface layer called the third body, consisting of wear particles and structures resulting from their agglomerates. Its behavior and…
A parameter-free mechanistic model of the adhesive wear process of rough surfaces in sliding contact
Tobias Brink, Lucas Frérot, Jean-François Molinari
In order to develop predictive wear laws, relevant material parameters and their influence on the wear rate need to be identified. Despite decades of research, there is no agreemen…
The role of interfacial adhesion on minimum wear particle size and roughness evolution
Enrico Milanese, Tobias Brink, Ramin Aghababaei +1
Adhesion between two bodies is a key parameter in wear processes. At the macroscale, strong adhesive bonds are known to lead to high wear rates, as observed in clean metal-on-metal…
Adhesive wear and interaction of tangentially loaded micro-contacts
Son Pham-Ba, Tobias Brink, Jean-François Molinari
Current engineering wear models are often based on empirical parameters rather than built upon physical considerations. Here, we look for a physical description of adhesive wear at…
Adhesive wear mechanisms in the presence of weak interfaces: Insights from an amorphous model system
Tobias Brink, Jean-François Molinari
Engineering wear models are generally empirical and lack connections to the physical processes of debris generation at the nanoscale to microscale. Here, we thus analyze wear parti…
From metallic glasses to nanocrystals: Molecular dynamics simulations on the crossover from glass-like to grain-boundary-mediated deformation behaviour
Tobias Brink, Karsten Albe
Nanocrystalline metals contain a large fraction of high-energy grain boundaries, which may be considered as glassy phases. Consequently, with decreasing grain size, a crossover in…
Interface-controlled creep in metallic glass composites
Constanze Kalcher, Tobias Brink, Jochen Rohrer +2
In this work we present molecular dynamics simulations on the creep behavior of metallic glass composites. Surprisingly, all composites exhibit much higher cre…
Local segregation versus irradiation effects in high-entropy alloys: Steady-state conditions in a driven system
Leonie Koch, Fredric Granberg, Tobias Brink +4
We study order transitions and defect formation in a model high-entropy alloy (CuNiCoFe) under ion irradiation by means of molecular dynamics simulations. Using a hybrid Monte-Carl…
Structural origins of the boson peak in metals: From high-entropy alloys to metallic glasses
Tobias Brink, Leonie Koch, Karsten Albe
The boson peak appears in all amorphous solids and is an excess of vibrational states at low frequencies compared to the phonon spectrum of the corresponding crystal. Until recentl…
Solid-state amorphization of Cu nanolayers embedded in a Cu64Zr36 glass
Tobias Brink, Daniel Şopu, Karsten Albe
Solid-state amorphization of crystalline copper nanolayers embedded in a Cu64Zr36 metallic glass is studied by molecular dynamics simulations for different orientations of the crys…
Influence of Crystalline Nanoprecipitates on Shear-Band Propagation in Cu-Zr Based Metallic Glasses
Tobias Brink, Martin Peterlechner, Harald Rösner +2
The interaction of shear bands with crystalline nanoprecipitates in Cu-Zr-based metallic glasses is investigated by a combination of high-resolution TEM imaging and molecular-dynam…
Low temperature heat capacity of severely deformed metallic glass
Jonas Bünz, Tobias Brink, Koichi Tsuchiya +3
The low temperature heat capacity of amorphous materials reveals a low-frequency enhancement (boson peak) of the vibrational density of states, as compared with the Debye law. By m…