Unformatted text preview: has
one of thecompound corrosion process hascomposition is
austenite The face-centered cubic (FCC) for
from a supersaturated solution room temperature.
supercoolingso that the whole at a transformation
tilt boundary A boundary comp
. hich ions of light
activation barrier of temperature. process is slowed
The FCC phase in iron alloys is also referred to
Nernstdensity The number ofthat relates the on a
equation An equation atoms centered
temperature without the transformation occurring.
n are iron-carbon
dislocations of the same sign stacke
In made to impinge considerably. illustration of covalent bond angles water. Note that the bond
pg805 velocity. The7-27060 / crystallographic cell potentialinto the activities anglethe , which austenite.
[R] G15 FIGURE 2.6–5 electrochemical direction per unit length.
IRWIN / Schaffer
of is 104.5 with
is slightly less surface tension A .Energy per unit area associated
than the bonding
another. As a result ofGlossary the ex
all of rps
hich the transformation adhesive tetrahedral angle of 109.5 process by which two parts are
reactants and products.
bainite A two-phase microstructure consistin
of the ions. other
internal or external anisotropicishas usually a melt or
liquid adhesive. This process used to join energy/area,
joined by ancrystal An surfaces. It ﬂuid,units of01-20-98 rps QC1 in one portion of the crystal, a tilt
bonding electron pairs.
networkequivalent 2 O force/length.
which the parent phase polymers to Theformer of HAndeviates slightly from this model, since nonbonding ferrite and cementite. Bainite forms when an au
which isother polymers, element in a chain capable of
to metals, and ceramics and
solution characterized by molecular alignment.
electron pairs repel each other slightly more than bonding electron pairs. The result is that the steel is quenched to a temperature below the De
forming stress three bonds with by the area of
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