Standard Number: ASTM E384-2011
Title: standard test method for knoop and vickers hardness of materials
Replaced by Standard: ASTM E384-2011e1
Replacing Standard: ASTM E92;ASTM E92;ASTM E92;ASTM E92;ASTM E384
Publication Date: 2011/8/1
Execute Date: 2011/8/1
Publisher: American Society for Testing Material (ASTM)
Number of Pages:43
:1.1 this test method covers determination of the knoop and vickers hardness of materials, the verification of knoop and vickers hardness testing machines
, and the calibration of standardized knoop and vickers test blocks.1.2 this test method covers knoop and vickers hardnesstests made utilizing test forces in micro (9.807 3 10-3 to 9.807 n ) ( 1 to 1000 gf ) and macro (>9.807 to 1176.80 n) ( >1kg to 120 kgf ) ranges.note 1—previous versions of this standard limited test forces to 9.807 n (1 kgf).1.3 this test method includes all of the requirements to perform macro vickers hardness tests as previously defined in test method e92, standard test method for vickers hardness testing.
1.4 this test method includes an analysis of the possible sources of errors that can occur during knoop and vickers testing and how these factors affect the accuracy, repeatability, and reproducibility of test results.
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