hardness test


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hardness test

A test designed to determine the relative hardness of materials by correlating the size or depth of an indent produced by a particular instrument with a known amount of compressive force.
See: hardness number

hard·ness test

(hahrd'nĕs test)
Measurement of durability of a material, usually involving making and measuring an indentation in the material using a pressure device.
See also: Brinell hardness test, Rockwell hardness test, Vickers hardness test, Knoop hardness test
References in periodicals archive ?
Glass hardness tests use a Knoop indenter at very low loads ([approximately equal to]1 N) and consequently make very small, shallow impressions.
This paper aims to investigate the influence of technological parameters on the mechanical properties of electrochemical deposition of nickel on copper substrate using a Watts bath by Martens hardness test.
Universal hardness test is a relatively new method of testing materials that can be measured easily and quickly, a series of material indices for which a separate determination is required significant logistical and extraordinarily long time.
Results of hardness test HV0,2 Area measured Values determined, HV0,2 Average value Center (C) 252, 257, 249, 258, 256 254 Area 7 264, 257, 259, 259, 263 260 Area 5 255, 271, 262, 264, 265 263 Area 2 265, 260, 261, 273, 262 264 Areal 262, 264, 261, 265, 262 263 Area 300 281, 278, 263, 285, 267 275 Area 150 255, 251, 260, 252, 257 255 Tab.
In the KNOOP hardness test the modeled shape is an elongated diamond as a result of the indention.
SWC-1 durometer software will prove to be invaluable in helping to produce and analyze durometer hardness test data, according to the manufacturer.
Material Testing Certificate For Chemical Composition And Hardness Test From A Govt.
Currently, one of the most efficient and quick method for advanced materials characterization in terms of important characteristics of mechanical strength is the instrumental Martens hardness test.
To determine static load hardness by measuring depth of penetration, known standardized methods Rockwell, Martens, instrumental hardness test as well as other non-standardized methods are more or less used for informative hardness determination.
Tenders are invited for Supply of Curved Tooth Flexible Type Full Geared Coupling Fgc-104, Flange Od - 250 Mm, Thickness Of Flange-20 Mm, Hub Od - 175 Mm, No Of Fixing Holes - 6, Pitch Diameter Of Fixing Holes - 215 Mm, Pilot Bore - 45 Mm, Hardness Of Teeth - 220 - 250 Bhn, Material - C55, Mn 75 Steel, Material Composition And Hardness Test Certificate From Govt.
Several castings outside of the acceptable Brinell hardness range are necessary to establish a correlation because the standard error in the Brinell hardness test is significantly large when compared with the usual hardness acceptance range for most gray iron castings.