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diamond penetrator hardness

См. также в других словарях:

  • Rockwell hardness number — a number indicative of the degree of relative hardness of materials, determined by measuring the depth of the impression made by a steel or diamond penetrator pressed into the surface of the material being tested. There are a number of Rockwell… …   Medical dictionary

  • Knoop hardness — (HK or KHN)    a measure of the hardness of a metal introduced by Knoop in 1939. The Knoop test is similar to the Vickers test in that a diamond penetrator is used to indent the sample being tested, but it uses a rhombohedral diamond rather than… …   Dictionary of units of measurement

  • Rockwell hardness — (RH )    a measure of the hardness of a metal introduced by Rockwell in 1922. In a Rockwell hardness test, a penetrator makes an indentation in the metal under two constant loads, a minor load (generally 10 kilograms) and then a major load. The… …   Dictionary of units of measurement

  • Chobham armour — A pre series American M1 Abrams, the first main battle tank type to be protected by Chobham armour …   Wikipedia

  • Tungsten carbide — Chembox new Name = Tungsten carbide ImageFile = Tungsten carbide.jpg ImageName = Tungsten carbide milling bits Section1 = Chembox Identifiers CASNo = 12070 12 1 Section2 = Chembox Properties Formula = WC MolarMass = 195.86 g·mol−1 Appearance =… …   Wikipedia

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