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