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Laser Processing: Surface Treatment and Film Deposition (Paperback, Softcover reprint of the original 1st ed. 1996)
Loot Price: R1,676
Discovery Miles 16 760
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Laser Processing: Surface Treatment and Film Deposition (Paperback, Softcover reprint of the original 1st ed. 1996)
Series: NATO Science Series E:, 307
Expected to ship within 10 - 15 working days
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Synthesis of nonequilibrium metallic phases has been an area of
great interest to the materials processing community since early
1960. Inherent rapid cooling rates in laser processing are being
used to engineer non-equilibrium microstructures which cannot be
rivaled by other processes. This lecture will discuss the phenomena
involved and its application in designing materials with tailored
properties. What is non-equilibrium Synthesis? This is a synthesis
method to produce binary or higher order materials where kinetics
of the pro cess affects the transport of the constituent elements
during phase transformation resulting in a composition or
crystallographic configuration which is different from what is
observed when the elements arranges themselves with the lowest
possible Gibbs Free energy, which is the equilibrium condition.
Figure 1 illustrates the phenomena. Phase diagram under equilibrium
condition is illustrated by the solid line whereas the
no-equilibrium phase diagram is represented by the dotted line. One
can observe the shrinkage of the phase field under non-equilibrium
condition. Any alloy composition between the solidus lines of the
equilibrium and non-equilibrium phase diagram will be a non
equilibrium alloys with extended solid solution."
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