Examples of 'retained austenite' in a sentence
Meaning of "retained austenite"
Retained austenite is a term used in metallurgy to describe the stable form of austenite that remains in an alloy even after cooling below the transformation point
How to use "retained austenite" in a sentence
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retained austenite
The retained austenite causes variation in strength.
C is an important element for securing retained austenite.
Hardness and retained austenite as a function of austenitizing temperature.
Stabilizing stabilization of retained austenite sulphidizing.
Retained austenite may be undesirable for a number of reasons.
This enhances by stability of the retained austenite based on quenching.
Si causes deterioration of yield strength accompanying an increase of retained austenite.
This is because the retained austenite produces variations in strength.
The second phase may further contain retained austenite.
The volume fraction of retained austenite is determined as described below.
Tempering modifies the microstructure by converting retained austenite to martensite.
The volume ratio of the retained austenite is preferably as small as possible.
An increase in alloying agents or carbon content causes an increase in retained austenite.
Si exhibits the action of forming retained austenite during quenching.
Retained austenite may also be present in the hardened and tempered condition.
See also
Transforming retained austenite.
Some retained austenite may be present in the final microstructure after cooling.
This bainite hardly contains carbide and retained austenite in a grain.
This retained austenite content is necessary to obtain sufficient uniform and total elongations.
Carbon serves to deliver strength and to enable the stabilisation of retained austenite.
In this type of steel the amount of retained austenite increases with the chromium content.
Strength is greatly enhanced due to the presence of the high carbon retained austenite.
This reduces the amount of retained austenite and increases the hardness of the matrix.
Additions of Al result in a remarkable increase in the carbon content in the retained austenite.
The volume ratio of retained austenite can also be reduced by adjusting the tempering temperature.
Note that the remainder other than the retained austenite was martensite.
The retained austenite generated by passing through the annealing step becomes extended coarse austenite.
These complications can be avoided primarily by lowering the retained austenite content in the alloy.
The metastable retained austenite fraction ensures the balanced combination of strength and ductility properties.
Both contained tempered martensite, and some retained austenite.
The retained austenite generated by passing through the annealing step becomes massive and coarse austenite.
As another hard structure, retained austenite can be incorporated.
The retained austenite contained in the TRIP steel sheet transforms to martensite when worked.
In these cases, the retained austenite is barely formed.
Retained austenite is strain-induced transformed to be martensite.
Besides, the shape of retained austenite becomes the problem.
Accordingly, the steel sheet should contain retained austenite.
Martensite and retained austenite greatly deteriorate the hole expansibility and also reduce the yield ratio.
However, chromium may also promote ferrite and retained austenite.
Because of the TRIP effect retained austenite is a prerequisite when high elongation is necessary.
Also, as the holding time is made longer, the stability of retained austenite increases.
The maximum retained austenite volume fraction increases with increasing the average C content.
In addition, this may also increase the propensity of retained austenite in the microstructure.
When the fraction of retained austenite is higher, ductility becomes more excellent.
Obtained profiles were analyzed and respectively averaged, to thereby calculate a volume ratio of retained austenite.
Therefore, the volume ratio of retained austenite is preferably as low as possible.
Too much niobium adversely affects the phase balance of the alloy, producing retained austenite.
Thus, retained austenite may remain in the steel pipe after quenching.
The higher the área ratio of the retained austenite is, the more preferable it is.
In such manner, the present invention allows containing unavoidably included martensite, retained austenite and pearlite.
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Examples of using Austenite
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It is formed by the transformation of austenite by a nondiffusional mechanism
Austenite is in equilibrium with ferrite and cementite
C carbon content of austenite at the peritectic pe temperature
