Simulation of Interparticle Interfaces Approaching Each Other. 3. Formation of the Adhesion #alpha#-Fe-Contact under the Indentation of Atomic-Size Edge Roughness and Its Tensile Failure

摘要

The processes of nanoindentation, pressing and stretching of the #alpha#-Fe-roughness with (100) and (114) #alpha#-Fe-surface are simulated at an atomic level. An atomistic mechanism of the contact creation and breaking with formation of the fracture 《cup》 is investigated. The correlation between structural transformations and a change of adhesive bonds' number, viscosity of contact, energy and force of adhesion is analysed. The crowdion mechanism of plastic deformation under indentation is confirmed.