austenite


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Related to austenite: pearlite, cementite

aus·ten·ite

 (ô′stə-nīt′)
n.
A nonmagnetic solid solution of iron and another alloying element, usually assumed to be carbon unless otherwise specified, used in making corrosion-resistant steel.

[After Sir William Chandler Roberts- Austen (1843-1902), British metallurgist.]

aus′ten·it′ic (-ĭt′ĭk) adj.

austenite

(ˈɔːstəˌnaɪt)
n
1. (Metallurgy) a solid solution of carbon in face-centred-cubic gamma iron, usually existing above 723°C
2. (Metallurgy) the gamma phase of iron, stabilized at low temperatures by the addition of such elements as nickel
[C20: named after Sir William C. Roberts-Austen (1843–1902), English metallurgist]
austenitic adj

aus•ten•ite

(ˈɔ stəˌnaɪt)

n.
a nonmagnetic solid solution of carbon or iron carbide in iron, an essential component of high-carbon stainless steels.
[1900–05; after Sir W. C. Roberts-Austen (1843–1902), English metallurgist; see -ite1]
aus`ten•it′ic (-ˈnɪt ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.austenite - a solid solution of ferric carbide or carbon in iron; cools to form pearlite or martensite
gamma iron - a nonmagnetic allotrope of iron that is the basis of austenite; stable between 906 and 1403 degrees centigrade
austenitic steel - steel that has enough nickel and chromium or manganese to retain austenite at atmospheric temperatures
primary solid solution, solid solution - a homogeneous solid that can exist over a range of component chemicals; a constituent of alloys that is formed when atoms of an element are incorporated into the crystals of a metal
Translations
References in periodicals archive ?
Researchers from AK Steel plan to work in collaboration with DOEs Oak Ridge National Laboratory to develop microstructure-based transformation models to predict austenite stability in high strength steels in a project titled Thermo-Mechanical Forming Process Development to Produce Tailored Strength Automotive Structural Components.
Steels were heat treated to produce an average prior austenite grain size of 50-70 [micro]m, a lath martensitic microstructure, and a Stage I tempered hardness of525-560 HBW (53-55 HRC).
The principal phases in the SAW-SS+CrC hardfacing were solid solution of Cr in [alpha]-Fe and, on a smaller scale, Ni-rich retained austenite ([gamma]-Fe) and a small amount of secondary carbide [Cr.sub.3]C, while [Cr.sub.7][C.sub.3] and austenite ([gamma]-Fe) prevailed in the microstructure of the PTAW-SS+CrC hardfacing accompanied by the solid solution of Fe(Cr) (Fig.
Usually, the microstructure of the steel consists of bainite, martensite, and retained austenite in a matrix of soft ferrite [5].
The girth weld from the vintage X52 pipe exhibits a solidification structure consisting of elongated prior austenite grains that are highly variable in size.
The high temperature phase is called the austenite phase, the low temperature phase is called the martensite phase.
I want to encourage Austenite's to see the importance of our senior population, especially those we honored at our luncheon," says Cummings.
Khan: Austenite determination by eddy current measurements in Maraging steel, NDT and E Interna.
Nickel is an austenite stabilizer, and the austenitic stainless steels (300-series) are not magnetic.
Similar to the previous, the impact toughness of 34CrNiMo6 steel can be improved with refinement of the prior austenite grain size.
The microstructure of lower bainite (LB) is mostly featured with the lath ferrite (F), and from the austenite grain boundary to the intragranular one the parallel growth of ferrite is shown.
This is because, when the austenite shears to form the martensite, there are different directions to do this.