18 / 20
В.В. Ковалев, Р.С. Михеев, Н.В. Коберник
110
ISSN 0236-3941. Вестник МГТУ им. Н.Э. Баумана. Сер. Машиностроение. 2016. № 4
various intermetallic Fe
x
Al
y
phases. We give some information
on the crystal lattices, the formation conditions and strength
properties of intermetallic Fe
x
Al
y
phases. Then, we study the
effect of the intermetallic layer thickness on the bimetallic
bonding strength properties, as well as the basic methods of
bonding preparation. We choose the arc welding methods as
the most promising ones for our purposes, as they do not
restrict the construction geometry. The article also looks at
some recent advances in the one-piece steel-aluminum bon-
ding preparation by arc welding methods and shows that a
bonding produced by arc welding has high resistance to cor-
rosion and also higher tensile strength than that of aluminum
alloys used in this process. Next, we give data on the effect of
different factors on the bondings properties: input heat during
welding, alloying components and process technologies.
Moreover, we describe the mechanism of the alloying ele-
ments effect that increase the values of bimetallic steel-
aluminum compounds tensile strength and we consider the
issue of solid steel wetting by molten aluminum, which is
determined by the difference in the melting points of metals.
Consequently, we reveal the data on the intermetallic layer
thickness and the recommended process technologies, that
allow us to get welding bonding, which is fractured through
the aluminum part of bimetallic construction. Finally, we give
re-commendations for the usage of alloying elements, which
makes it possible to limit the intermetallic layer growth and
ensure the solid steel wetting by molten aluminum
REFERENCES
[1] Reisgen U., Stein L., Steiners M. Schwingverhalten von modifiziertem MSG
Kurzlichtbogenprozess gefügten Stahl-Aluminium-Mischverbindungen.
Schweiβen und
Schneiden
, 2010, no. 7/8, ss. 396–399.
[2] Oryshchenko A.S., Osokin E.P., Pavlova V.I., Zykova S.A. Bimetal steel-aluminium joints
in shipbuilding hull structures.
Paton Welding
Journal
, 2009, iss. 10, pp. 35–38.
[3] Feshchenko V.N. Slesarnoe delo. Sborka proizvodstvennykh mashin [Bench Work. As-
sembling Production Machines]. Moscow, Infra-Inzheneriya Publ., 2012. 544 p.
[4] Bruckner J. Arc Joining of steel aluminium.
Paton Welding Journal
, 2003,
no. 10/11, pp. 180–182.
[5] Ryabov V.R. Alitirovanie stali [Aluminizing Steel]. Moscow, Metallurgiya Publ., 1973.
240 p.
[6] Ozaki H., Kutsuna M. Dissimilar Metal Joining of Zinc Coated Steel and Aluminum Alloy
by Laser Roll Welding.
Welding Processes
, 2010, vol. 22, iss. 1, pp. 33–54.
[7] Spina R., Tricarico L. Laser welding of aluminium-steel clad materials for naval applica-
tions.
Laser Welding
, 2005, pp. 77–106.