surface-hardening steel
31Hang (musical instrument) — Hang (2nd generation 2007) 53 cm in diameter and 24 cm high. A Hang (pronounced [haŋ], with vowel sound between those of the words hot and hungry) is a musical instrument in the idiophone class created by PANArt in Switzerland.[1] The Hang is… …
32Investment casting — For investment casting in art, see lost wax casting. Investment casting, also called lost wax casting, is one of the oldest known metal forming techniques. From 5,000 years ago, when beeswax formed the pattern, to today’s high technology waxes,… …
33Hayward A. Harvey — Hayward Augustus Harvey (17 January1824 ndash; 28 August1893) was an American inventor and industrialist. He is best known for inventing the Harvey process for case hardening the front surface of steel armor plate. The resulting Harvey armor was… …
34nitride — /nuy truyd, trid/, n. Chem. a compound, containing two elements only, of which the more electronegative one is nitrogen. [1840 50; NITR + IDE] * * * ▪ chemical compound Introduction any of a class of chemical compounds in which nitrogen is… …
35nitriding — noun /ˈnaɪ.tɹaɪd.iŋ/ A method of case hardening steel by the surface absorption of nitrogen by heating with ammonia …
36carburise — /ˈkabjəraɪz/ (say kahbyuhruyz) verb (t) (carburised, carburising) 1. to cause to unite with carbon. 2. Metallurgy to introduce carbon into the surface of (steel) by heating it while it is in contact with a suitable source of carbon, as a form of… …
37case harden — The action of hardening the surface of steel …
38Bicycle frame — Steel frame of 2000 LeMond Zurich road racing bicycle mounted in a work stand …
39Viscoplasticity — Figure 1. Elements used in one dimensional models of viscoplastic materials. Viscoplasticity is a theory in continuum mechanics that describes the rate dependent inelastic behavior of solids. Rate dependence in this context means that the… …
40Forging — This article is about the metalworking process. For specific hot forging hearth, see forge. For the act of counterfeiting, see forgery. Hot metal ingot being loaded into a hammer forge Forging is a manufacturing process involving the shaping of… …
