He suggested to me a theoretical problem left over from his work during the war on the cooling of steel through the austenite-pearlite transition, and I learned a fair amount of metallurgy in order to understand the physical basis of the phenomenon.    From Wordnik.com.  [Aaron Klug - Autobiography] Reference

Figure 12.34 The transformation diagram for austenite in a cast iron.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

The structure is then austenite and the air-cooled structure of this steel is martensite.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

Oprah said it's the best thing since sliced bread lauchlin of the bad buy wittiest austenite.    From Wordnik.com.  [book-a-rama] Reference

Fig. 49 shows austenite to possess the typical appearance of any pure, crystallized substance.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

If a piece of steel could be cooled instantly, doubtless austenite could be preserved and examined.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

You caught me out, in the mistake I made, and thank you for your correction of austinite to austenite.    From Wordnik.com. Reference

Slide 30: Figure 12.12 Retained austenite (white) trapped between martensite needles (black) ( 1000).    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Therefore this steel has to be heated and very rapidly cooled to obtain the ductile austenite structure.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

It has the maximum hardness of any of the structures resulting from the decomposition products of austenite.    From Wordnik.com.  [MyLinkVault Newest Links] Reference

Higher percentages of nickel change the martensitic structure to austenite, the steel then being non-magnetic.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

As the steel is heated above the critical temperature the size of the austenite crystals tends to grow rapidly.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

The Goldedge treatment process alters the molecular structure of the steel, converting the retained austenite to martensite.    From Wordnik.com.  [Manufacturingtalk - manufacturing industry news] Reference

The structure shown is progressively white martensite, martensite and retained austenite, followed by martensite at approximately 700HV0. 3.    From Wordnik.com.  [Yahoo! Answers: Latest Questions] Reference

Perlite is the lamellar aggregate of ferrite and iron carbide resulting from the direct transformation of austenite at the lower critical point.    From Wordnik.com.  [MyLinkVault Newest Links] Reference

The size of the final grains will be much smaller and hence a more uniform structure will result if the "mother" austenite was also fine grained.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

It may be said immediately that above the upper critical the carbon exists in the iron as a "solid solution," called "austenite" by metallographers.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

Any of these operations not only allows the transformations from austenite to pearlite to proceed, but also relieves internal stresses in the steel.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

When enough Nickel is present in a straight chromium steel, it provides an essentially austenite matrix, at all temperatures including room temperature.    From Wordnik.com.  [CR4 - Recent Forum Threads and Blog Entries] Reference

However, if the heating has gone above the critical very far, the austenite crystals start to grow; a very short time at an extreme temperature will cause.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

It represents the complete transformation of the eutectoid austenite accomplished by slow-cooling of an iron-carbon alloy through the transformation range.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

This technology deploys a high-purity bearing steel combined with a special heat treatment technology, guaranteeing an optimized retained austenite content.    From Wordnik.com.  [Reliable Plant Home Page] Reference

At that moment, in fact, the ferrite, cementite or pearlite which previously existed has lost its identity by everything going into the solid solution called austenite.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

In the most quickly quenched high carbon steels, austenite commonly forms the ground mass which is interspersed with martensite, a large field of which is illustrated in Fig. 50.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

 Marquenching - Quenching austenite to a temperature just above the MS and holding until the temperature is equalized throughout the steel before further cooling to produce martensite.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

The growth is continually destroyed by the hammering, which should consequently be continued down to the upper critical temperature when the austenite crystals break up into ferrite and cementite.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

High-manganese steels or austenite manganese steels are used for a variety of purposes where great resistance to abrasion is required, the percentage of manganese being from 11 to 14 per cent, and carbon.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

Subsequent cooling gives a coarse texture, or an arrangement of ferrite, cementite and pearlite grains which is greatly coarsened, reflecting the condition of the austenite crystals from which they were born.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

While chromium promotes formation of ferrite and increases resistance to oxidation and corrosion, Nickel helps for formation of austenite, increases high temparature strength, corrossin resistance and ductility.    From Wordnik.com.  [CR4 - Recent Forum Threads and Blog Entries] Reference

Slide 27: Section 12.4 Quench and Temper Heat Treatments  Retained austenite - austenite that is unable to transform into martensite during quenching because of the volume expansion associated with the reaction.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

In order to produce quick and intense carburization the iron should preferably be above its upper critical temperature or 1,600°F., -- therefore the carbon absorbed immediately goes into austenite, or solid solution.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

If the steel be then cooled, the austenite breaks up into new crystals of ferrite, cementite and pearlite; and in general if the temperature has not gone far above the critical, and cooling is not excessively slow, a very fine texture will result.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

In the ordinary practice of hardening steels, the quenching is not so drastic, and the transformation of austenite back to ferrite and cementite is more or less completely effected, giving rise to certain transitory forms which are known as "martensite," "troostite," "sorbite," and finally, pearlite.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference

Sorbite is believed to be an early stage in the formation of pearlite, when the iron and iron carbide originally constituting the solid solution (austenite) have had an opportunity to separate from each other, and the iron has entirely passed into the alpha modification, but the particles are yet too small to be distinguishable under the microscope.    From Wordnik.com.  [The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel] Reference