diamond-pyramid test

См. также в других словарях:

• diamond pyramid hardnesstest — this test, more commonly known as the TestVickers test, finds greater use in the laboratory than the workshop. It employs a pyramid shaped diamond with an included angle of 136( which is impressed into the specimen using loads of 5 to 120 kg… …   Mechanics glossary

• test — bend test Brinell hardness test Charpy test creep test cup test diamond pyramid hardnesstest elongation test end quench test endurance test impact test Izod impact test Jominy test …   Mechanics glossary

• Vickers hardness test — A Vickers hardness tester The Vickers hardness test was developed in 1924 by Smith and Sandland at Vickers Ltd as an alternative to the Brinell method to measure the hardness of materials.[1] The Vickers test is often easier to use than other… …   Wikipedia

• vickers hardness test — ˈvikə(r)z noun Usage: usually capitalized V Etymology: probably from Vickers Armstrong Ltd., British steel manufacturing concern : an indentation hardness test for metals in which a 136 degree diamond pyramid is pressed into the surface of the… …   Useful english dictionary

• Vick|ers test — «VIHK uhrz», a method of determining the hardness of metals by indenting them with a diamond pyramid under a specified load and measuring the size of the indentation. ╂[< the Vickers Works, a British industrial firm] …   Useful english dictionary

• Vickers hardness test — a method of determining the hardness of steel whereby a diamond pyramid is pressed into the polished surface of the specimen and the diagonals of the impression are measured with a microscope fitted with a micrometer eye piece. The rate of… …   Mechanics glossary

• Knoop hardness test — The Knoop hardness test is a microhardness test a test for mechanical hardness used particularly for very brittle materials or thin sheets, where only a small indentation may be made for testing purposes. A pyramidal diamond point is pressed into …   Wikipedia

• steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …   Universalium

• Vickers hardness — ▪ mineralogy       a measure of the hardness of a material, calculated from the size of an impression produced under load by a pyramid shaped diamond indenter. Devised in the 1920s by engineers at Vickers, Ltd., in the United Kingdom, the diamond …   Universalium

• DPH — may refer to: Designated hitter in baseball ( designated pitch hitter ) Digital planar holography Dunedin Public Hospital, New Zealand Diamond Pyramid Hardness; see Vickers hardness test Daytime parahypnagogia Diphenhydramine, a first generation… …   Wikipedia

• List of Marvel Family enemies — Through his adventures, Fawcett Comics/DC Comics superhero Captain Marvel and his Marvel Family gained a host of enemies, including the following: Contents 1 Acrobat 2 Adolf Hitler 3 Amoeba Family …   Wikipedia