Mesoscopic surface folding in EK-181 steel polycrystals under uniaxial tension

Numerical Study of the Influence of Grain Size and Loading Conditions on the Deformation of a Polycrystalline Aluminum Alloy

“…Numerical results obtained in calculations are shown in Figures 2-5. Surface roughening is shown to be mostly affected by microstructure of the subsurface layer [5]. Basing on this observation, we have determined the mini- mum thickness of the model, needed to reproduce the surface roughening with acceptable accuracy.…”

“…This paper continues a series of computational studies of surface roughening phenomena and mesoscale deformation processes in polycrystalline materials [5]- [8]. The influence of boundary conditions (BCs) and grain size on the qualitative characteristics of the surface roughness in polycrystalline AL6061-T3 alloy is analyzed.…”

Numerical study of the surface-hardening effect on surface phenomena in 3D polycrystalline specimens

“…High-strength steels and titanium alloys demonstrate well-pronounced roughening under uniaxial tension [3]. The ion-beam surface irradiation provides nano-or submicrocrystalline structures in an about 6 m thick surface layer.…”

“…It is a challenge, therefore, to elaborate efficient methods for suppressing surface roughening mechanisms. Experiments for a number of materials (e.g., [3]) have shown that surface modification by means of strain hardening or coating deposition may effectively suppress roughening. The mechanical aspects of this effect remain to be explored, however.…”

Effect of self-ion irradiation on the microstructural changes of alloy EK-181 in annealed and severely deformed conditions

“…The alloy is normally used in the quenched and tempered condition, yielding a dual phase tempered F/M structure [7,9]. Furthermore, extensive research efforts have been and continue to be made to improve this alloy and its variants through the optimization of heat treatments and surface modification to produce better corrosion resistance and mechanical properties [1,7,[9][10][11][12][13][14][15].…”