In industrial applications, most materials are exposed to wear and friction because multiple conditions are used. However, the tribological properties of these materials can be improved with different techniques. One such technique that improves the frictional property of a surface is the use of self-lubricating coatings. In this study, multicomponent coatings of nominal composition Cu-Ni3Al-Mo...

Neutron irradiation tends to promote disorder in ordered alloys through the action of thermal spikes that it generates, while simultaneously introducing point defects and defect clusters. As they migrate, these will reordering alloys, acting against irradiation-induced disordering. In this study, classical molecular dynamics a highly parallel accelerated sampling method are used study kinetics ...

Interlayer exchange coupling in ordered Fe nanocluster arrays grown on Al2O3/Ni3Al(111) S. Vlaic,1,* L. Gragnaniello,1,† S. Rusponi,1 A. Cavallin,1,‡ F. Donati,1 Q. Dubout,1 C. Piamonteze,2 J. Dreiser,2 F. Nolting,2 and H. Brune1,§ 1Institute of Condensed Matter Physics, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland 2Swiss Light Source, Paul Scherrer Institut, CH-5232 ...

in industrial applications, most materials are exposed to wear and friction because multiple conditions are used. however, the tribological properties of these materials can be improved with different techniques. one such technique that improves the frictional property of a surface is the use of self-lubricating coatings. in this study, multicomponent coatings of nominal composition cu-ni3al-mo...

There is increasing evidence that vibrational entropy may significantly contribute to the entropy difference between the ordered and the disordered states of a compound. Through first-principles calculations, we investigate the magnitude of this vibrational entropy difference in Ni3Al, a compound where this effect is believed to be especially large. We find the vibrational entropy difference to...

Grain boundaries (GBs) represent one of the most important types of defects in solids and their instability leads to catastrophic failures in materials. Grain boundaries are challenging for theoretical studies because of their distorted atomic structure. Fortunately, quantum-mechanical methods can reliably compute their properties. We calculate and analyze (tensorial) anisotropic elastic proper...

In this paper, Ni-Al films were prepared using magnetron sputtering technology. The microstructure of the and relationship between residual stress adhesion strength studied. More importantly, mechanical strength–ductility properties evaluated by in situ tensile testing. results showed that film mainly consisted Ni3Al phase Ni-based solid solution at low power Al target. transition occurred, NiA...

Resistance spot welding (RSW) is widely used as a main joining technique in industry and the electrode caps are frequently replaced because of degradation during service. In this study, G type copper RSW were coated with Fe Ni based Fe3Al, FeAl, Ni3Al, NiAl alloys by Electro-Spark Deposition (ESD), providing resistance to hot deformation, oxidation Zn evaporation from sheet metal. The ESD teste...