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Topic: Austenite


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  Retained Austenite Quantification by X-Ray Diffraction
During rapid cooling from the stable austenitic region, the diffusion of carbon is sufficiently suppressed for hard martensite to form instead of the softer
The presence or absence of austenite has significant consequences in crucial metallurgical applications such as roller bearings, tool steels, high strength steels etc. To monitor austenite content, X-ray diffraction method has been found to be most effective and accurate over other methods, in particular for concentrations of 15% or less.
The retained austenite analysis is performed in adherence to ASTM E-975-84 and to Soc.
www.camet-lab.com /austen.htm   (390 words)

  
  Encyclopedia: Austenite
Austenite is a metallic, non-magnetic solid solution of carbon and iron that exists in steel above the critical temperature of 1333°F (about 723°C).
Quenching (to induce martensitic transformation), followed by tempering (to break down some martensite and retained austenite), is the most common heat treatment for high-performance steels.
In this context, the color of light emitted by the workpiece is an accurate gauge of temperature, with the transition from red to orange corresponding to the formation of Austenite in medium- and high-carbon steel.
www.nationmaster.com /encyclopedia/Austenite   (861 words)

  
 Austenite -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-03)
In the extreme case of austenitic (Steel containing chromium that makes it resistant to corrosion) stainless steel, much higher alloy content makes this structure stable even at room temperature.
A (A smith who forges and shapes iron with a hammer and anvil) Blacksmith causes phase changes in the iron-carbon system in order to control the material's mechanical properties, often using the quenching-and-tempering process described above.
In this context, the color of light emitted by the workpiece is an accurate (Click link for more info and facts about gauge of temperature) gauge of temperature, with the transition from red to orange corresponding to the formation of Austenite in medium- and high-carbon steel.
www.absoluteastronomy.com /encyclopedia/a/au/austenite.htm   (210 words)

  
 Read about Austenite at WorldVillage Encyclopedia. Research Austenite and learn about Austenite here!   (Site not responding. Last check: 2007-11-03)
Austenite is a metallic, non-magnetic solid solution of carbon and
The rate of cooling determines the relative proportions of these materials and therefore the mechanical properties (e.g.
gauge of temperature, with the transition from red to orange corresponding to the formation of Austenite in medium- and high-carbon steel.
encyclopedia.worldvillage.com /s/b/Austenite   (206 words)

  
 Alloy, Metal Terminology (A)
Phase in certain steels, characterized as a solid solution, usually off carbon or iron carbide, in the gamma form of iron.
Austenite is stable only above 1333°F. in a plain carbon steel, but the presence of certain alloying elements, such as nickel and manganese, stabilizes the austenitic form, even at normal temperatures.
Steel which, because of the presence of alloying elements, such as manganese, nickel, chromium, etc., shows stability of Austenite at normal temperatures.
www.metal-mart.com /Dictionary/dictleta.htm   (861 words)

  
 Website Design India, Website Development India, Call Center & Search Engine Marketing India
Austenite is a global, dynamic, offshore software development company with our offshore development centre based in India.
Austenite services in CAD design, CAD drafting, CAD drawing conversion, paper to CAD - mass conversion of hand drafted engineering drawings to electronic media, assembly to detail drawings, solid modeling and CAE.
Austenite’s specialized IT wing is supported by experienced graphics and multimedia team to stunning corporate logo designs, advertisement and commercial animation in both 2d and 3d segments.
www.e-austenite.co.uk   (423 words)

  
 Definition of austenite - Merriam-Webster Online Dictionary
Learn more about "austenite" and related topics at Britannica.com
Find more about "austenite" instantly with Live Search
See a map of "austenite" in the Visual Thesaurus
www.m-w.com /cgi-bin/dictionary?book=Dictionary&va=austenite   (58 words)

  
 Crystallography [encyclopedia]   (Site not responding. Last check: 2007-11-03)
Clay can be easily deformed because the platelike particles can slip along each other in the plane of the plates, yet remain strongly connected in the direction perpendicular to the plates.
In another example, when iron, which at room temperature has a body-centered cubic (bcc) structure, is heated up, it will transform to a face centered cubic (fcc) structure, called austenite.
The fcc structure is a close-packed structure, and the bcc structure is not, which explains why the volume of the iron decreases when this transformation occurs.
kosmoi.com /Science/Chemistry/Crystallography   (880 words)

  
 Providing residual stress products
Turnkey solutions, instruments and measurement services based on Barkhausen Noise and X-ray Diffraction for studying residual stresses, retained austenite contents, grinding burns, heat treat defects and hardness changes, etc.
We provide tools for process control and quality inspection of camshafts, crankshafts, bearings, gears, valves, etc.
Since 1983, American Stress Technologies (AST) has provided residual stress, retained austenite, and process control instruments.
www.astresstech.com   (101 words)

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