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46 relations: Allotropy, Alloy, Antiferromagnetism, Atmospheric pressure, Austenite, Bainite, Brinell scale, Carbon, Carbon steel, Cast iron, Cementite, Chemical equilibrium, Close-packing of equal spheres, Crystal, Crystal structure, Crystallography, Cubic crystal system, Curie temperature, Earth, Electrical impedance, Eutectic system, Ferromagnetism, Heat treating, Hexaferrum, Induction heating, Inner core, Iron, Magnet, Magnetic domain, Metal, Nickel, Obsolescence, Orthorhombic crystal system, Paramagnetism, Pearlite, Phase (matter), Phase diagram, Phase transition, Quenching, Solubility, Stainless steel, Steel, Superdense carbon allotropes, Temperature, Tempering (metallurgy), Unpaired electron.
Allotropy
Allotropy or allotropism is the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of these elements.
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Alloy
An alloy is a combination of metals or of a metal and another element.
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Antiferromagnetism
In materials that exhibit antiferromagnetism, the magnetic moments of atoms or molecules, usually related to the spins of electrons, align in a regular pattern with neighboring spins (on different sublattices) pointing in opposite directions.
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Atmospheric pressure
Atmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth (or that of another planet).
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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.
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Bainite
Bainite is a plate-like microstructure that forms in steels at temperatures of 125–550 °C (depending on alloy content).
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Brinell scale
The Brinell scale characterizes the indentation hardness of materials through the scale of penetration of an indenter, loaded on a material test-piece.
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Carbon
Carbon (from carbo "coal") is a chemical element with symbol C and atomic number 6.
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Carbon steel
Carbon steel is a steel with carbon content up to 2.1% by weight.
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Cast iron
Cast iron is a group of iron-carbon alloys with a carbon content greater than 2%.
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Cementite
Cementite (or iron carbide) is a compound of iron and carbon, more precisely an intermediate transition metal carbide with the formula Fe3C.
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Chemical equilibrium
In a chemical reaction, chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of the system.
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Close-packing of equal spheres
In geometry, close-packing of equal spheres is a dense arrangement of congruent spheres in an infinite, regular arrangement (or lattice).
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Crystal
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.
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Crystal structure
In crystallography, crystal structure is a description of the ordered arrangement of atoms, ions or molecules in a crystalline material.
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Crystallography
Crystallography is the experimental science of determining the arrangement of atoms in crystalline solids (see crystal structure).
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Cubic crystal system
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube.
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Curie temperature
In physics and materials science, the Curie temperature (TC), or Curie point, is the temperature above which certain materials lose their permanent magnetic properties, to be replaced by induced magnetism.
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Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life.
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Electrical impedance
Electrical impedance is the measure of the opposition that a circuit presents to a current when a voltage is applied.
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Eutectic system
A eutectic system from the Greek "ευ" (eu.
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Ferromagnetism
Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets.
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Heat treating
Heat treating (or heat treatment) is a group of industrial and metalworking processes used to alter the physical, and sometimes chemical, properties of a material.
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Hexaferrum
Hexaferrum and epsilon iron (ε-Fe) are synonyms for the hexagonal close-packed (HCP) phase of iron that is stable only at extremely high pressure.
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Induction heating
Induction heating is the process of heating an electrically conducting object (usually a metal) by electromagnetic induction, through heat generated in the object by eddy currents.
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Inner core
The Earth's inner core is the Earth's innermost part.
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Iron
Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.
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Magnet
A magnet is a material or object that produces a magnetic field.
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Magnetic domain
A magnetic domain is a region within a magnetic material in which the magnetization is in a uniform direction.
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Metal
A metal (from Greek μέταλλον métallon, "mine, quarry, metal") is a material (an element, compound, or alloy) that is typically hard when in solid state, opaque, shiny, and has good electrical and thermal conductivity.
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Nickel
Nickel is a chemical element with symbol Ni and atomic number 28.
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Obsolescence
Obsolescence is the state of being which occurs when an object, service, or practice is no longer wanted even though it may still be in good working order.
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Orthorhombic crystal system
In crystallography, the orthorhombic crystal system is one of the 7 crystal systems.
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Paramagnetism
Paramagnetism is a form of magnetism whereby certain materials are weakly attracted by an externally applied magnetic field, and form internal, induced magnetic fields in the direction of the applied magnetic field.
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Pearlite
Pearlite is a two-phased, lamellar (or layered) structure composed of alternating layers of ferrite (88 wt%) and cementite (12 wt%) that occurs in some steels and cast irons.
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Phase (matter)
In the physical sciences, a phase is a region of space (a thermodynamic system), throughout which all physical properties of a material are essentially uniform.
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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.
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Phase transition
The term phase transition (or phase change) is most commonly used to describe transitions between solid, liquid and gaseous states of matter, and, in rare cases, plasma.
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Quenching
In materials science, quenching is the rapid cooling of a workpiece in water, oil or air to obtain certain material properties.
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Solubility
Solubility is the property of a solid, liquid or gaseous chemical substance called solute to dissolve in a solid, liquid or gaseous solvent.
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Stainless steel
In metallurgy, stainless steel, also known as inox steel or inox from French inoxydable (inoxidizable), is a steel alloy with a minimum of 10.5% chromium content by mass.
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Steel
Steel is an alloy of iron and carbon and other elements.
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Superdense carbon allotropes
Superdense carbon allotropes are proposed configurations of carbon atoms that result in a stable material with a higher density than diamond.
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Temperature
Temperature is a physical quantity expressing hot and cold.
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Tempering (metallurgy)
Tempering is a process of heat treating, which is used to increase the toughness of iron-based alloys.
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Unpaired electron
In chemistry, an unpaired electron is an electron that occupies an orbital of an atom singly, rather than as part of an electron pair.
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References
[1] https://en.wikipedia.org/wiki/Allotropes_of_iron
