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pearlite    
珍珠体; 珍珠岩; 珠光体

珍珠体; 珍珠岩; 珠光体

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  • Pearlite - Wikipedia
    Pearlite is a two-phased, lamellar (or layered) structure composed of alternating layers of ferrite (87 5 wt%) and cementite (12 5 wt%) that occurs in some steels and cast irons During slow cooling of an iron-carbon alloy, pearlite forms by a eutectoid reaction as austenite cools below 723 °C (1,333 °F) (the eutectoid temperature)
  • What is Ferrite, Cementite, Pearlite , Martensite, Austenite
    Pearlite: Pearlite is the name given to a mixture of about 87 5 percent ferrite and 12 5 percent cementite It consists of alternate layers of ferrite and cementite in steel
  • What is Pearlite - Definition - Material Properties
    In metallurgy, pearlite is a layered metallic structure of two-phases, which compose of alternating layers of ferrite (87 5 wt%) and cementite (12 5 wt%) that occurs in some steels and cast irons It is named for its resemblance to mother of pearl
  • 4 cu. ft. Perlite 50802400 - The Home Depot
    Perlite is a naturally occurring, volcanic rock When furnace at high temperatures, Perlite "pops" and expands up to 15 times its original volume The resulting, lightweight particles are made up of microscopic spheres with a porous, broken surface that promotes plant growth
  • Pearlite: Morphology, Crystallography and Effects | Steel | Metallurgy
    When austenite in iron-carbon alloys is transformed isothermally below the eutectoid temperature at small undercooling, it undergoes eutectoid transformation to produce a unique micro- structure termed “pearlite”, which was discovered by Sorby in 1864
  • What is Perlite: How to Use Perlite Soil to Grow Plants - Leafy Place
    Perlite is a natural substance that helps to modify soil by making it lighter and improve its drainage You can safely add non-toxic perlite to a potting mix if your plants need to grow in a medium that drains well Also, these little white ball-like minerals are useful for mixing into garden soil to help aerate it
  • Pearlite - an overview | ScienceDirect Topics
    Pearlite is essentially a composite microstructure consisting of cementite layers (which are hard and brittle) sandwiched between ferrite layers (which are soft and ductile)
  • What is Pearlite - Definition and more - BorTec
    Pearlite is an eutectoid structural component of steel, which is arranged lamellarly pearlite is a mixture of the two phases ferrite and cementite It occurs at carbon contents of between 0 02 and 6 67 % during coupled crystallization in iron-carbon alloys
  • Pearlite – Metallurgy
    Pearlite is a two-phased, lamellar (or layered) structure composed of alternating layers of ferrite (87 5 wt%) and cementite (12 5 wt%) that occurs in some steels and cast irons During slow cooling of an iron-carbon alloy, pearlite forms as austenite cools below 723 °C (1,333 °F)
  • What is Pearlite in Steel? - Material Welding
    What is Pearlite in Steel? Have you ever wondered what gives steel its remarkable strength and durability? One of the key components is a microstructure known as pearlite Pearlite is formed when austenite, the high-temperature phase of iron, undergoes a eutectoid reaction with carbon during cooling





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