How is austenite tissue created?

The austenite structure is a clump formed by the crystallization of single crystals of austenite.

Austenitic tissue:

Austenite is a gap solid solution of carbon dissolved in Fe and is often denoted by the symbol A. It still retains the face-centered cubic lattice of Fe. Its carbon-solubilizing capacity is large, and the dissolved carbon is c= at 727 and soluble carbon at 1148.

Austenite is a tissue that can only be stably present at temperatures greater than 727. Austenite has good plasticity and is the structure required for most steel grades to be pressed at high temperatures.

The austenite structure is a clump formed by the crystallization of austenite single crystals, which is embedded in the steel material to improve the properties of the steel. In the quenching process, the crystal structure of iron transforms the intrinsic factor of its changing properties.

Austenitic stainless steel refers to stainless steel with austenitic structure at room temperature. When the steel contains about 18% Cr, 8% Ni and 10%, and C, it has a stable austenite structure. Austenitic chromium-nickel stainless steels include the well-known 18Cr-8Ni steel and the high Cr-Ni series steel developed by adding Cr and Ni content and adding elements such as Mo, Cu, Si, Nb, and Ti.

Austenitic stainless steel is non-magnetic and has high toughness and plasticity, but the strength is low, it is impossible to strengthen it by phase change, and can only be strengthened by cold working, such as adding S, CA, SE, TE and other elements, it has good machinability.

Austenite is a lamellar microstructure of steel, usually a non-magnetic solid solution with a small amount of carbon in -Fe, also known as Vostenite iron or -Fe.

Martensite is a microstructure name for ferrous metals, which is a supersaturated solid solution of carbon in -Fe.

Differences: austenite has good plasticity, low strength, certain toughness, and no ferromagnetism. Martensite, on the other hand, has high strength, but poor plasticity and weldability.

Austenite is a lamellar microstructure of steel, usually a non-magnetic solid solution with a small amount of carbon in -Fe, also known as Vostenite iron or -Fe. The name austenite comes from the British metallurgist William Chandler Roberts-Austen.

Austenite. Austentiite) is a lamellar microstructure of steel, usually a non-magnetic solid solution with a small amount of carbon in -Fe.

Also known as Vostin iron or -fe. The name austenite comes from the British metallurgist William Chandler Roberts-Austen.

Austenite has good plasticity, low strength, certain toughness, and no ferromagnetism.

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Problem description: What is martensite? What about ferrite?

Analysis: Hehe, friend, it's really interesting, because I also asked the same question as you and me, I don't know if you are also learning mechanics, if so, we are lucky.

Ferrite Ferrite is a gap solid solution formed by C dissolved in -Fe, with a body-centered cubic crystal structure, denoted by the letter F or .

Austenite Austenite is a gap solid solution formed by C dissolved in -Fe and has a face-centered cubic crystal structure, which is denoted by the letter A or

Martensite: m denotes a supersaturated solid solution of carbon in alpha iron. However, it is not divided into upper martensite and lower martensite, bainite is divided into upper bainite and lower coarse bainite, it can be divided into high-carbon martensite (rock bucket-aged slatted martensite) and low-carbon martensite (flaky martensite).

Residual austenite is supercooled austenite that has not yet transformed below 230 degrees.

As for what you said about the content of the gear, this is because the residual austier is not a stable tissue, at room temperature it has to transform into some stable structure, which causes some series of deformation of the material, and you are especially the gear, the gear is subjected to alternating load, which is particularly important for its content.

Summary. Dear, I am glad to answer for you, the formation mechanism of austenite in equilibrium tissue and austenite in non-equilibrium tissue is different. The equilibrium structure austenite is formed in crystals, which are composed of atoms and molecules of crystals, have a regular crystal structure, have orientation and stability, can resist the influence of external forces, and thus maintain the stability of its structure.

The non-equilibrium austenite is formed in a molten state, it is composed of atoms and molecules in a liquid metal, has no regular crystal structure, has no orientation and stability, and is susceptible to external forces, which makes its structure change. Therefore, the formation mechanism of balanced tissue austenite and non-equilibrium tissue austenite is different.

1What is the difference between the formation of balanced and non-equilibrium austenite and what is the mechanism of its formation?

Dear, I am glad to answer for you, the formation mechanism of austenite in equilibrium tissue and austenite in non-equilibrium tissue is different. The equilibrium structure austenite is formed in crystals, which are composed of atoms and molecules of crystals, have a regular crystal structure, have orientation and stability, can resist the influence of external forces, and thus maintain the stability of its structure. The non-equilibrium austenite is formed in the molten state, which is composed of atoms and molecules in liquid metal, has no regular crystal structure, no orientation and stability, and is easily affected by external forces, so that its structure changes.

Therefore, the formation mechanism of the balanced tissue austenite and the non-equilibrium tissue austenite is different.

Pro-kin, equilibrium austenite is formed in crystals, while non-equilibrium austenite is formed in a molten state.

Austenite is a crystalline structure that, in metallurgy, refers to the face-centered cubic structure (FCC) formed by iron and its alloys (such as carbon steel, stainless steel, etc.) at high temperatures. The opposite of austenite is martensite, which is a tissue state with a typical body-centered cubic structure (BCT) formed by rapid cooling at low temperatures.

The austenitic structure has good strength and toughness, and is easy to hot work and work hardening. Therefore, many metal materials need to control the structure of austenite in the production process in order to obtain better physical properties.

For example, in the manufacture of stainless steel, the austenite vertical sensitive microstructure of the material is controlled by controlling the content of alloying elements, heat treatment process and other methods to achieve the purpose of anti-corrosion, heat resistance, tensile resistance and so on. At the same time, in the process of welding and heat treatment of metal materials, it is also necessary to have an in-depth understanding and grasp of the transformation and deformation of austenite, such as chain laws, so as to avoid negative effects on the mechanical properties and use properties of raw materials.