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surface hardness

См. также в других словарях:

  • Hardness — Hard ness, n. [AS. heardness.] 1. The quality or state of being hard, literally or figuratively. [1913 Webster] The habit of authority also had given his manners some peremptory hardness. Sir W. Scott. [1913 Webster] 2. (Min.) The cohesion of the …   The Collaborative International Dictionary of English

  • Surface finishing — is a broad range of industrial processes that alter the surface of a manufactured item to achieve a certain property.[1] Finishing processes may be employed to: improve appearance, adhesion or wettability, solderability, corrosion resistance,… …   Wikipedia

  • hardness tester — ▪ device       device that indicates the hardness of a material, usually by measuring the effect on its surface of a localized penetration by a standardized rounded or pointed indenter of diamond, carbide, or hard steel.       Brinell hardness is …   Universalium

  • Hardness — This article is about mechanical properties of materials. For other uses, see Hard. Hardness is the measure of how resistant solid matter is to various kinds of permanent shape change when a force is applied. Macroscopic hardness is generally… …   Wikipedia

  • hardness —    a measure of the hardness of a metal or mineral. Hardness is a property easy to appreciate but difficult to quantify and measure.    The Mohs hardness scale is used in geology to give a rough estimate of hardness by testing which minerals are… …   Dictionary of units of measurement

  • hardness — The toughness of the surface of a metal. See brinell hardness indentation hardness rockwell hardness shore hardness …   Dictionary of automotive terms

  • surface coating — ▪ chemistry Introduction       any mixture of film forming materials plus pigments, solvents, and other additives, which, when applied to a surface and cured or dried, yields a thin film that is functional and often decorative. Surface coatings… …   Universalium

  • surface hardening — ▪ metallurgy       treatment of steel by heat or mechanical means to increase the hardness of the outer surface while the core remains relatively soft. The combination of a hard surface and a soft interior is greatly valued in modern engineering… …   Universalium

  • hardness — the measure of a material s resistance to deformation by surface indentation or by abrasion. The most common method of measurement is Rockwell. Other methods are Brinell, Scleroscope, Tukon and Vickers. red hardness secondary hardness …   Mechanics glossary

  • hardness — noun Date: before 12th century 1. the quality or state of being hard 2. a. the cohesion of the particles on the surface of a mineral as determined by its capacity to scratch another or be itself scratched compare Mohs scale b. resistance of metal …   New Collegiate Dictionary

  • Indentation hardness — tests are used to determine the hardness of a material to deformation. Several such tests exist, wherein the examined material is indented until an impression is formed; these tests can be performed on a macroscopic or microscopic scale. When… …   Wikipedia

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