Silumin, aluminum with silicon alloy, is a promising material used for the manufacture of medium-loaded machine parts and mechanisms. High brittleness is one of the main drawbacks of hypereutectic silumin. Modification of a hypereutectic silumin (18-20 wt.% Si) was carried out by irradiating the samples with an intense pulsed electron beam. It was established that irradiation of cast hypoeutectic silumin by an electron beam leads to a significant reduction in the number of micropores, forming a high-speed cellular crystallization structure with a cell size of (0.4-0.6) μm. An irradiation mode allowing to increase the silumin surface layer hardness by more than 4 times, wear resistance - by 1.2 times, to increase ductility by 1.2 times in relation to the initial material was detected (35 J / cm2; 200 μs, 20 imp. 0.3 s-1).
|Journal||IOP Conference Series: Materials Science and Engineering|
|Publication status||Published - 23 Aug 2019|
|Event||16th International Conference of Students and Young Scientists on Prospects of Fundamental Sciences Development, PFSD 2019 - Tomsk, Russian Federation|
Duration: 23 Apr 2019 → 26 Apr 2019
ASJC Scopus subject areas
- Materials Science(all)