Chromium Carbide

Chromium carbide is a ceramic compound that exists in several different chemical compositions; Cr3C2, Cr7C3,and Cr23C6. At standard conditions it exists as a gray solid. It is extremely hard and corrosion resistant. It is also a refractory compound, which means that it retains its strength at high temperatures as well. These properties make useful as an additive to metal alloys. When chromium carbide crystals are integrated into the surface of a metal it improves the wear resistance and corrosion resistance of the metal, and maintains these properties at elevated temperatures. The hardest and most commonly used composition for this purpose is Cr3C2.

Read more about Chromium CarbideProperties, Synthesis, Uses

Other articles related to "chromium, chromium carbide, carbide, carbides":

Arc Welding - Corrosion Issues
... subjected to temperatures around 700 °C (1,300 °F) for too long a time, chromium reacts with carbon in the material, forming chromium carbide and depleting the crystal edges of chromium ... the welds where the temperature-time was favorable for forming the carbide ... Niobium and niobium carbide dissolves in steel at very high temperatures ...
Alloy Steel - Material Science
... Chromium, vanadium, molybdenum, and tungsten increase strength by forming second-phase carbides ... The alloying elements tend to form either compounds or carbides ... the compounds MnS, MnO•SiO2, but will also form carbides in the form of (Fe,Mn)3C ...
Intergranular Corrosion
... known as grain boundary depletion, of the corrosion-inhibiting elements such as chromium by some mechanism ... In nickel alloys and austenitic stainless steels, where chromium is added for corrosion resistance, the mechanism involved is precipitation of chromium carbide at the ... Around 12% chromium is minimally required to ensure passivation, mechanism by which an ultra thin invisible film, known as passive film, forms on the surface of stainless steels ...
Chromium Carbide - Uses
... Chromium carbide is useful in the surface treatment of metal components ... Chromium carbide is used to coat the surface of another metal in a technique known as thermal spraying ... Cr3C2 powder is mixed with solid nickel-chromium ...

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