RT Journal Article ID 3c5c0bf467639ebf A1 Cherenda, Nikolai N. A1 Bibik, N. V. A1 Uglov, Vladimir V. A1 Astashynski, Valiantsin M. A1 Kuzmitski, Anton M. T1 SYNTHESIS OF SURFACE LAYERS HARDENED BY METAL TRIALUMINIDE COMPOUND IN Al−Si ALLOY UNDER COMPRESSION PLASMA FLOWS IMPACT JF High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes JO HTM YR 2014 FD 2015-11-20 VO 18 IS 1-2 SP 1 OP 13 K1 silumin K1 trialuminide K1 compression plasma flows K1 crystal lattice K1 hardness AB The structure, phase, and element composition of Al−12%Si piston silumin surface layer alloyed with titanium, zirconium, or niobium atoms were investigated in this work. Alloying was carried out by deposition of an alloying element coating on the silumin surface and subsequent treatment with compression plasma flows generated by a gas-discharge magnetoplasma accelerator. The findings showed that plasma impact resulted in the formation of a composite surface layer containing a supersaturated aluminum solid solution and disperse intermetallic phases on the basis of Al3Ti, Al3Zr, and Al3Nb compounds with a tetragonal D022 crystal lattice. The size of intermetallic particles was in the range of 17minus;4 μm. Silicon atoms took part in the formation of a supersaturated Al(Si) solid solution and intermetallic phases, e.g., (Al, Si)3Zr. The synthesized composite layer possessed a high hardness value (up to 4.4 GPa). The main mechanisms of the structure transformation during plasma impact were discussed. PB Begell House LK https://www.dl.begellhouse.com/journals/57d172397126f956,4f8b30266070dbed,3c5c0bf467639ebf.html