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2. Wah Chang Corporation - Wikipedia

   en.wikipedia.org/wiki/Wah_Chang_Corporation

   Wah Chang Corporation was an American manufacturing company in the metal or alloy industry based in Albany, Oregon in the United States. Since 2014, it has been a business unit of Allegheny Technologies and makes corrosion-resistant metals, such as hafnium, niobium, titanium, vanadium, and zirconium.

3. Non-ferrous metal - Wikipedia

   en.wikipedia.org/wiki/Non-ferrous_metal

   In metallurgy, non-ferrous metals are metals or alloys that do not contain iron (allotropes of iron, ferrite, and so on) in appreciable amounts.. Generally more costly than ferrous metals, non-ferrous metals are used because of desirable properties such as low weight (e.g. aluminium), higher conductivity (e.g. copper), [1] non-magnetic properties or resistance to corrosion (e.g. zinc). [2]

4. Metal dusting - Wikipedia

   en.wikipedia.org/wiki/Metal_dusting

   This graphite layer is then thought to form metastable M 3 C species (where M is the metal), which migrate away from the metal surface. However, in some regimes no M 3 C species are observed indicating a direct transfer of metal atoms into the graphite layer. [2] The temperatures normally associated with metal dusting are high (300–850 °C). [2]

5. Weathering steel - Wikipedia

   en.wikipedia.org/wiki/Weathering_steel

   Weathering steel, often referred to by the genericised trademark COR-TEN steel and sometimes written without the hyphen as corten steel, is a group of steel alloys that form a stable external layer of rust that eliminates the need for painting.

6. Passivation (chemistry) - Wikipedia

   en.wikipedia.org/wiki/Passivation_(chemistry)

   In physical chemistry and engineering, passivation is coating a material so that it becomes "passive", that is, less readily affected or corroded by the environment. . Passivation involves creation of an outer layer of shield material that is applied as a microcoating, created by chemical reaction with the base material, or allowed to build by spontaneous oxidation

7. Inconel - Wikipedia

   en.wikipedia.org/wiki/Inconel

   Inconel is a difficult metal to shape and to machine using traditional cold forming techniques due to rapid work hardening. After the first machining pass, work hardening tends to plastically deform either the workpiece or the tool on subsequent passes.