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Type and Name of the Project: PhD Thesis
IMPROVING THE HIGH TEMPERATURE
CORROSION RESISTANCE OF MATERIALS BY
CO-DEPOSITION of NANO AND MICRO
SIZED CeO2 DISPERSED
PHASE IN THE NICKEL MATRIX.
State of the project:
Proposed.
Summary:
High temperature corrosion is a form
of corrosion that does not require
the presence of a liquid
electrolyte. Sometimes, this type of
damage is called "dry corrosion" or
"scaling". The term oxidation is
ambivalent since it can either refer
to the formation of oxides or to the
mechanism of oxidation of a metal,
i.e. its change to a higher valence
than the metallic state. Strictly
speaking, high temperature oxidation
is only one type of high temperature
corrosion. In fact, oxidation is the
most important high temperature
corrosion reaction.
In most corrosive high temperature
environments, oxidation often
participates in the high temperature
corrosion reactions, regardless of
the predominant mode of corrosion.
Alloys often rely upon the oxidation
reaction to develop a protective
scale to resist corrosion attack
such as sulfidation, carburization
and other forms of high temperature
attack. In general, the names of the
corrosion mechanisms are determined
by the most abundant dominant
corrosion products.
High temperature corrosion is a
widespread problem in various
industries such as:
►power generation (nuclear and fossil fuel);
►aerospace and gas turbine;
►heat treating;
►mineral and metallurgical processing;
►chemical processing;
►refining and petrochemical;
►automotive;
►pulp and paper;
►waste incineration.
Partners:
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