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2. Case-hardening - Wikipedia

   en.wikipedia.org/wiki/Case-hardening

   Colt Peacemaker, showing discoloration from case-hardening. Case-hardening or carburization is the process of introducing carbon to the surface of a low-carbon iron, or more commonly a low-carbon steel object, in order to harden the surface. Iron which has a carbon content greater than ~0.02% is known as steel.

3. Hardened steel - Wikipedia

   en.wikipedia.org/wiki/Hardened_steel

   If the metal has been hardened, the file fails to cut into the sample and glances off with little visible effect. Case hardened steel-Vickers hardness test. Case hardened articles starting as low carbon steel (0.5 - 1.5% carbon content) can also be labeled hardened steel.

4. Solid solution strengthening - Wikipedia

   en.wikipedia.org/wiki/Solid_solution_strengthening

   Surface carburizing, or case hardening, is one example of solid solution strengthening in which the density of solute carbon atoms is increased close to the surface of the steel, resulting in a gradient of carbon atoms throughout the material. This provides superior mechanical properties to the surface of the steel without having to use a ...

5. Heat treating - Wikipedia

   en.wikipedia.org/wiki/Heat_treatment

   Case hardening is a thermochemical diffusion process in which an alloying element, most commonly carbon or nitrogen, diffuses into the surface of a monolithic metal. The resulting interstitial solid solution is harder than the base material, which improves wear resistance without sacrificing toughness.

6. List of DIN standards - Wikipedia

   en.wikipedia.org/wiki/List_of_DIN_standards

   DIN 41869-1: Case 23 A 3 for semiconductor devices; main dimensions: Withdrawn: DIN 41869-2: Cases 34 A 2 and 34 A 3 for semiconductor devices; main dimensions: Withdrawn: DIN 41869-3: Case 11 A 3 and 11 B 3 for semiconductor devices; main dimensions: Withdrawn: DIN 41869-4: Case 12 A 3 for semiconductor devices; main dimensions: Withdrawn: DIN ...

7. Carbon steel - Wikipedia

   en.wikipedia.org/wiki/Carbon_steel

   Case hardening processes harden only the exterior of the steel part, creating a hard, wear-resistant skin (the "case") but preserving a tough and ductile interior. Carbon steels are not very hardenable meaning they can not be hardened throughout thick sections. Alloy steels have a better hardenability, so they can be through-hardened and do not ...

8. Hardening (metallurgy) - Wikipedia

   en.wikipedia.org/wiki/Hardening_(metallurgy)

   Precipitation hardening (also called age hardening) is a process where a second phase that begins in solid solution with the matrix metal is precipitated out of solution with the metal as it is quenched, leaving particles of that phase distributed throughout to cause resistance to slip dislocations. This is achieved by first heating the metal ...

9. Krupp armour - Wikipedia

   en.wikipedia.org/wiki/Krupp_armour

   Krupp armour was a type of steel naval armour used in the construction of capital ships starting shortly before the end of the nineteenth century. It was developed by Germany's Krupp Arms Works in 1893 and quickly replaced Harvey armour as the primary method of protecting naval ships, before itself being supplanted by the improved Krupp ...