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2. Nitriding - Wikipedia

   en.wikipedia.org/wiki/Nitriding

   Nitriding. A modern computerised nitriding furnace. Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface. These processes are most commonly used on low-alloy steels. They are also used on titanium, aluminium and molybdenum .

3. Titanium nitride - Wikipedia

   en.wikipedia.org/wiki/Titanium_nitride

   Titanium nitride ( TiN; sometimes known as tinite) is an extremely hard ceramic material, often used as a physical vapor deposition (PVD) coating on titanium alloys, steel, carbide, and aluminium components to improve the substrate's surface properties. Applied as a thin coating, TiN is used to harden and protect cutting and sliding surfaces ...

4. Ferritic nitrocarburizing - Wikipedia

   en.wikipedia.org/wiki/Ferritic_nitrocarburizing

   Ferritic nitrocarburizing or FNC, also known by the proprietary names Tenifer, Tufftride and Melonite as well as ARCOR, [Note 1] [1] is a range of proprietary case hardening processes that diffuse nitrogen and carbon into ferrous metals at sub- critical temperatures during a salt bath. Other methods of ferritic nitrocarburizing include gaseous ...

5. Quench polish quench - Wikipedia

   en.wikipedia.org/wiki/Quench_polish_quench

   Quench polish quench. Quench polish quench ( QPQ) is a specialized type of nitrocarburizing case hardening that increases corrosion resistance. It is sometimes known by the brand name of Tufftride, Tenifer or Melonite. [1] Three steps are involved: nitrocarburize ("quench"), polish, and post-oxidize ("quench"). [2]

6. Titanium aluminium nitride - Wikipedia

   en.wikipedia.org/wiki/Titanium_aluminium_nitride

   Titanium aluminium nitride ( TiAlN) or aluminium titanium nitride ( AlTiN; for aluminium contents higher than 50%) is a group of metastable hard coatings consisting of nitrogen and the metallic elements aluminium and titanium. This compound as well as similar compounds (such as TiN and TiCN) are most notably used for coating machine tools such ...

7. Black oxide - Wikipedia

   en.wikipedia.org/wiki/Black_oxide

   Black oxide or blackening is a conversion coating for ferrous materials, stainless steel, copper and copper based alloys, zinc, powdered metals, and silver solder. [1] It is used to add mild corrosion resistance, for appearance, and to minimize light reflection. [2] To achieve maximal corrosion resistance the black oxide must be impregnated ...