Ni-resist iron
Definition
Noun: 1. A type of cast iron: Ni-resist iron is a specific alloy of cast iron. Its defining characteristic is that its microstructure consists of graphite (a form of carbon) embedded within a primary matrix of austenite (a non-magnetic form of iron). This structure provides it with unique properties compared to other cast irons.
Usage
- Ni-resist iron is used in applications requiring high corrosion resistance, heat resistance, and wear resistance.
- It is commonly specified for components exposed to elevated temperatures, alkaline environments, or saltwater.
Examples of Usage
Advanced Usage
- "Ni-resist" as a modifier: The term "ni-resist" itself is often used as an adjective to describe this family of iron alloys.
- The specifications call for a ni-resist alloy with high nickel content.
Variants and Related Words
- Austenitic cast iron: A broader technical term for cast irons with an austenitic matrix, which includes ni-resist iron.
- Ni-Resist®: This is often a registered trademark for specific grades of this alloy produced by certain manufacturers.
- Ductile Ni-Resist: A form of ni-resist iron where the graphite is in a spheroidal (nodular) form, improving ductility and toughness.
Synonyms
- Austenitic cast iron (technical synonym)
- High-nickel cast iron (descriptive synonym, as nickel is the primary alloying element that creates the austenitic structure)
Related Technical Terms
- Graphite: The form of carbon present in the iron, which provides lubricity and dampening properties.
- Austenite: The metallic matrix phase; a solid solution of carbon and other elements (like nickel) in iron, known for its toughness and corrosion resistance.
- Alloying elements: Ni-resist iron is primarily alloyed with nickel (Ni), and often with chromium (Cr) and copper (Cu) to enhance its specific properties.
Noun
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cast iron consisting of graphite in a matrix of austenite
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