On the fatigue strength of grade 20Cr13 hardened steel modified by an electron beam

Model of formation of droplets during electric arc surfacing of functional coatings

“…We shall seek for the solution of (1) and (2) in the form of a traveling wave. As a result, we get the dispersion equation for the final layer which, in the case of short-waves, takes the form: ( 6 ) …”

“…Nanostructured states, formed on the surface of materials when exposed to such flows, contribute to the increase of their strength and durability [2,3]. One of the most effective ways to create such conditions is arc welding [4].…”

The Influence of Electron Beam Treatment on Al-Si Alloy Structure Destroyed at High-Cycle Fatigue

“…The surface treatment with low energy (5-20 KeV) pulsed (50-200 µs) high current (50-200 A) electron beams creates conditions for the formation of amorphous, nano-and submicrocrystalline structure in near-surface layer [1,[5][6][7][8][9]. In papers [1,8,9] they were shown that surface treatment of stainless steels with high intensive pulsed electron beam is accompanied by increase (more than by 3.5 times) in fatigue life of these materials. It is obvious that deformation effect taking place under fatigue tests is favorable for structural transformation of material.…”

Evolution of Al–19·4Si alloy surface structure after electron beam treatment and high cycle fatigue

“…The effective method of this modification and as a consequence, fatigue life increase is the processing of material surface by high intensity electron beam of submillisecond effect duration, allowing to change the surface layer structure tens of micrometres thick into a multimodal structure-phase state and essentially without changing the structure-phase state of the alloy basic volume. [4][5][6][7][8][9][10][11][12] Alloys of aluminium with silicon having high specific mechanical properties are brittle and are difficultly deformed materials. The structure and phase composition of aluminium alloys are widely investigated.…”