Metallurgy

2017-07-27T19:14:27+03:00[Europe/Moscow] en true Rolling (metalworking), Austenite, Martensite, Soldering, Electrotyping, Alloy, Heat treating, Shape-memory alloy, Amorphous metal, Cementite, Coke (fuel), Passivation (chemistry), Phase diagram, Powder metallurgy, Sintering, Carburizing, Slag, Anodizing, Cupola furnace, Ingot, Metal foam, Fluidized bed, Roll slitting, Bimetal, Oxy-fuel welding and cutting, Rotary kiln, Continuous casting, Patina, Scrap, Chrome plating, Nitriding, Metal production in Ukraine, Rasaratna Samuchaya, Whisker (metallurgy), Casting (metalworking), Non-ferrous metal, Microstructure, Bloomery flashcards Metallurgy
Click to flip
  • Rolling (metalworking)
    In metalworking, rolling is a metal forming process in which metal stock is passed through one or more pairs of rolls to reduce the thickness and to make the thickness uniform.
  • Austenite
    Austenite, also known as gamma-phase iron (γ-Fe), is a metallic, non-magnetic allotrope of iron or a solid solution of iron, with an alloying element.
  • Martensite
    Martensite, named after the German metallurgist Adolf Martens (1850–1914), most commonly refers to a very hard form of steel crystalline structure, but it can also refer to any crystal structure that is formed by diffusionless transformation.
  • Soldering
    Soldering (AmE: /ˈsɒdərɪŋ/, BrE: /ˈsɒldərɪŋ/), is a process in which two or more items (usually metal) are joined together by melting and putting a filler metal (solder) into the joint, the filler metal having a lower melting point than the adjoining metal.
  • Electrotyping
    Electrotyping (also galvanoplasty) is a chemical method for forming metal parts that exactly reproduce a model.
  • Alloy
    An alloy is a mixture of metals or a mixture of a metal and another element.
  • Heat treating
    Heat treating is a group of industrial and metalworking processes used to alter the physical, and sometimes chemical, properties of a material.
  • Shape-memory alloy
    A shape-memory alloy (SMA, smart metal, memory metal, memory alloy, muscle wire, smart alloy) is an alloy that "remembers" its original shape and that when deformed returns to its pre-deformed shape when heated.
  • Amorphous metal
    An amorphous metal (also known as metallic glass or glassy metal) is a solid metallic material, usually an alloy, with a disordered atomic-scale structure.
  • Cementite
    Cementite, also known as iron carbide, is an intermetallic compound of iron and carbon, more precisely an intermediate transition metal carbide with the formula Fe3C.
  • Coke (fuel)
    Coke is a fuel with few impurities and a high carbon content, usually made from coal.
  • Passivation (chemistry)
    Passivation, in physical chemistry and engineering, refers to a material becoming "passive," that is, less affected or corroded by the environment of future use.
  • Phase diagram
    A phase diagram in physical chemistry, engineering, mineralogy, and materials science is a type of chart used to show conditions (pressure, temperature, volume, etc.) at which thermodynamically distinct phases occur and coexist at equilibrium.
  • Powder metallurgy
    Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders.
  • Sintering
    Sintering is the process of compacting and forming a solid mass of material by heat or pressure without melting it to the point of liquefaction.
  • Carburizing
    Carburizing, carburising (chiefly British English), or carburization is a heat treatment process in which iron or steel absorbs carbon while the metal is heated in the presence of a carbon bearing material, such as charcoal or carbon monoxide.
  • Slag
    Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore.
  • Anodizing
    Anodizing (also spelled anodising, particularly in the UK, India and Australia) is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts.
  • Cupola furnace
    A cupola or cupola furnace is a melting device used in foundries that can be used to melt cast iron, ni-resist iron and some bronzes.
  • Ingot
    An ingot is a piece of relatively pure material, usually metal, that is cast into a shape suitable for further processing.
  • Metal foam
    A metal foam is a cellular structure consisting of a solid metal (frequently aluminium) with gas-filled pores comprising a large portion of the volume.
  • Fluidized bed
    A fluidized bed is a physical phenomenon occurring when a quantity of a solid particulate substance (usually present in a holding vessel) is placed under appropriate conditions to cause a solid/fluid mixture to behave as a fluid.
  • Roll slitting
    Roll slitting is a shearing operation that cuts a large roll of material into narrower rolls.
  • Bimetal
    Bimetal refers to an object that is composed of two separate metals joined together.
  • Oxy-fuel welding and cutting
    Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the U.S.) and oxy-fuel cutting are processes that use fuel gases and oxygen to weld and cut metals, respectively.
  • Rotary kiln
    A rotary kiln is a pyroprocessing device used to raise materials to a high temperature (calcination) in a continuous process.
  • Continuous casting
    Continuous casting, also called strand casting, is the process whereby molten metal is solidified into a "semifinished" billet, bloom, or slab for subsequent rolling in the finishing mills.
  • Patina
    Patina (/ˈpætᵻnə/ or /pəˈtiːnə/) is a thin layer that variously forms on the surface of stone; on copper, bronze and similar metals (tarnish produced by oxidation or other chemical processes); on wooden furniture (sheen produced by age, wear, and polishing); or any such acquired change of a surface through age and exposure.
  • Scrap
    Scrap consists of recyclable materials left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials.
  • Chrome plating
    Chrome plating (less commonly chromium plating), often referred to simply as chrome, is a technique of electroplating a thin layer of chromium onto a metal or plastic object.
  • Nitriding
    Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface.
  • Metal production in Ukraine
    Metal production, in particular iron and steel industry, is the dominant heavy industry in Ukraine.
  • Rasaratna Samuchaya
    Rasaratna Samuccaya, also known as Rasaratna Samuchchaya (Sanskrit: रसरत्न समुच्चय), is a scientific text written during the Tantric period in India.
  • Whisker (metallurgy)
    Metal whiskering is a phenomenon which occurs in electrical devices.
  • Casting (metalworking)
    In metalworking, casting means a process, in which liquid metal is poured into a mold, that contains a hollow cavity of the desired shape, and then allowed to cool and solidify.
  • Non-ferrous metal
    In metallurgy, a non-ferrous metal is a metal, including alloys, that does not contain iron (ferrite) in appreciable amounts.
  • Microstructure
    Microstructure is the small scale structure of a material, defined as the structure of a prepared surface of material as revealed by a microscope above 25× magnification.
  • Bloomery
    A bloomery is a type of furnace once widely used for smelting iron from its oxides.