austenitic

Thân thiện

An austenitic stainless steel pipe is used in a chemical processing plant.

Definition

1. Adjective:
   • Composed of austenite: Describes a material, typically a steel or iron alloy, whose microstructure consists primarily of the solid solution of iron and carbon known as austenite. This structure is stable at high temperatures and can be retained at room temperature by adding specific alloying elements like nickel or manganese.

Usage

• Adjective:
  • This term is used to classify and describe the metallurgical phase of metals and alloys.
  • It is primarily a technical term used in materials science, metallurgy, and engineering contexts.

Examples

• Adjective:
  • The stainless steel used in this application is austenitic, making it highly corrosion-resistant and non-magnetic.
  • An austenitic microstructure provides excellent toughness and ductility to the alloy.

Advanced Usage

• "Austenitic stainless steel": A common class of stainless steels (e.g., 304, 316) defined by their austenitic crystal structure, which gives them formability and corrosion resistance.
  • Surgical instruments are often made from austenitic stainless steel.

Variants and Related Words

• Austenite (noun): The face-centered cubic phase of iron or steel, or a solid solution in which gamma iron is the solvent.
  • Nickel helps to stabilize austenite at lower temperatures.

Synonyms

• Gamma-phase (in the context of iron alloys): Referring to the austenite phase.
• FCC (Face-Centered Cubic): Describing the crystal structure of austenite.

Antonyms

• Ferritic: Describing a material composed primarily of ferrite, a body-centered cubic phase of iron.
• Martensitic: Describing a material with a hard, brittle martensite phase.

Học thuật

Adjective

1. composed of austenite
   • austenitic alloy steel