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Austenite, also
known as gamma-phase iron (γ-Fe), is a metallic, non-magnetic
allotrope of iron or a
solid solution of iron with an
alloying element....
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quenching steel causes the
austenite to
transform into martensite, all of the
austenite usually does not transform. Some
austenite crystals will
remain unchanged...
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Martensite is
formed in
carbon steels by the
rapid cooling (quenching) of the
austenite form of iron at such a high rate that
carbon atoms do not have time to...
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after quenching them from the high
temperature austenite phase or they can
contain retained austenite. The
latter effect enables the
design of...
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stabilize amounts of
austenite at room
temperature in
normally austenite-free low-alloy
ferritic steels. By
applying strain, the
austenite undergoes a phase...
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strength and vice versa. Iron has a
higher solubility for
carbon in the
austenite phase;
therefore all heat treatments,
except spheroidizing and process...
- and held for
sufficient time to
allow the
material to
fully form
austenite or
austenite-cementite
grain structure. The
material is then
allowed to cool...
- of
white cast iron. In
carbon steel,
cementite precipitates from
austenite as
austenite transforms to
ferrite on slow cooling, or from
martensite during...
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observed during heating prior to
reversion to
austenite, or may be
completely absent. The R-phase to
austenite transformation (A-R) is reversible, with a...
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depending on grade. The
resulting austenite has a face-centered
cubic crystal structure. Quenching. The
austenite is
transformed into martensite, a hard...
