Presentation for Prometey LTD

Federal State Unitary Enterprise
Central Research Institute
Of Structural Materials «Prometey»
Titanium alloys for shipbuilding
and power engineering applications

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Federal State Unitary Enterprise
Central Research Institute
Of Structural Materials «Prometey»
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Central Research Institute of Structural Materials
“Prometey” (CRISM “Prometey”) is one
of the largest scientific enterprises in Russia specializing
in materials science and a recognized
leader in the development of structural materials
and technologies. One of the state research centers,
it is a federal state unitary enterprise which
activities are based on scientific research, technical
and technological potential. The main direction
of development is connected with creation
of new highly efficient multipurpose functional
materials of all classes.
Highly promising work carried out in the field
of structural materials is development and application
of titanium alloys in marine structures
intended mainly for shelf oil and metal ores production.
For example, underwater vehicles used for different
engineering and repair works at the bottom
of the ocean; its hulls are made of a and
pseudo-a-titanium alloys developed by CRISM
“Prometey”.

Deepwater habitable submersible “Rus”
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At present CRISM “Prometey” carries out
complex research for development of highstrength
materials based on a +b-titanium
alloys.
Also CRISM “Prometey” working together
with JSC Corporation “VSMPO-AVISMA”
develops new innovative projects aimed at the
improvement of metallurgical technologies.
Weight of titanium ingots has reached the
maximum equal to 17 t. Thanks to that we
can make now semi-finished products huge
in size and building structures with better
technical and economic indices.
CRISM “Prometey” prides itself that it has
developed manufacturing technology and
mastered the production of semi-finished
products of wide range and assortment, from
fine foil up to large-sized sheets, plates, forgings
and seamless rolled rings.

Consumable titanium
electrodes used for
ingots melting
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Rolled titanium rings

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Cold-deformed titanium pipes
New welding procedures (such as electronbeam
welding and others) for shipbuilding
structures made of titanium alloys are being
developed and improved. The institute carries
out a large amount of work, both research and
technical, connected with supervision over
building and modernization of shipyards
structures: JSC “Sevmash”, JSC “Zvezdochka”,
JSC “Admiralteyskie Verfi” (Shipyards)
etc.
The field of titanium alloys applications in ship
mechanical engineering and power engineering
continues to extend. Today production
technology of cold-deformed pipes for different
purposes (diameter since 6 mm up to 133
mm) is being mastered at Russian factories in

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Glazov and Electrostal: JSC “Chepetsky Mekhanichesky
Zavod (Mechanical Plant)”, JSC
“Mashinostroitelny Zavod (Machinebuilding
Plant”).
Nuclear steam
condenser with
titanium tube bundle
for stationary NPP
“Prometey’s” attention is now focused at mastering
pipes production (up to 300 mm in
diameter) for shipbuilding and petrochemical
industry as well as ribbed pipes manufacturing
for highly efficient steam units of new
generation.
Nowadays antifriction protective nanomodified
coatings could be promising direction in
ship mechanical engineering. The new coatings
enable titanium to be used in friction
assemblies and to work in contact with other
materials in corrosion media.

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Long last stage blade
Rotor of NPP steam turbine
Antifriction coatings for friction couples made
of advanced titanium materials are obtained
by innovative technologies such as thermal
oxidizing, detonation spraying, argon-arc and
plasma cladding upon titanium alloys.
As to ship power engineering a direction connected
with application of titanium for floating
nuclear power plants as well as for condensers
and heat exchanging equipment for
stationary NPP continues to develop.
Along with the above mentioned activities
the institute is carrying out research works to
determine a possibility of titanium alloys application
for reactor pressure vessels.
By this time it has been developed chemical
composition and manufacturing technology
of a radiation-resistant weldable titanium alloy
of a required strength which provides reduction
in induced activity and feasibility of
metallurgical refining over 30 years after the
end of operation in neutron irradiation conditions.
Documentation for ingots, forged and rolled
products made of the alloy is also developed.
A technology of electron-beam welding of
parts characterized by large thickness is developed
as well. The new alloy could be used
for pressure vessels of the future floating nuclear
power plants.

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Thus, as a result of successful scientific and
engineering activities for the last decades,
and due to the development of new materials
and technologies, CRISM “Prometey” is still
keeping its position as a world leader regarding
structural titanium alloys, thus areas of
its applications are considerably extended in
different industries.
Application of titanium for long blades of
steam-turbine plants of new generation
designed and manufactured by “Silovye
Machiny” (JSC “Power machines”) is one of
the topical directions in power engineering.
CRISM “Prometey” has developed a titanium
alloy with exceptional erosion resistance
based on low-alloyed a+b-alloy and technology
of manufacturing of rotating last stage
blades for low pressure cylinders of stationary
NPS steam-turbine plants out of this alloy.

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Federal State Unitary Enterprise
Central Research Institute
Of Structural Materials «Prometey»
Russia, 191015, Saint Petersburg, Shpalernaya St., 49
Phone: +7 (812) 274-16-19
Fax: +7 (812) 710-37-56
E-mail: mail@crism.ru
The official Web-site: http://www.crism-prometey.ru