hardness test


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hardness test

[′härd·nəs ‚test]
(analytical chemistry)
A test to determine the calcium and magnesium content of water.
(engineering)
A test to determine the relative hardness of a metal, mineral, or other material according to one of several scales, such as Brinell, Mohs, or Shore.
References in periodicals archive ?
Key Words: Bulk Fill, Nano-hybrid, Low-shrinkage, Depth of cure, Hardness, Vickers hardness test.
In this study the hardness test was carried out by indenting the diamond tool tip on the prepared weld cross section.
With their next-generation material hardness test instruments, which will launch in October 2012, the company hopes to bring nanoindentation to a broader market while still offering an instrument that can operate within the latest ASTM standards for wide variety of hardness testing methods.
Surface strength and hardness tests can be run on the completed sand mold to help identify soft spots due to uneven compaction or squeeze and verify the hardness of the mold prior to pouring.
This was to provide the field hardness test approach and general evaluation procedure for reliably determining the yield strength for older pipe of unknown specification.
For the Rockwell and Durometer Hardness tests, ASTM D 785 and ASTM D 2240 (type D) methods were followed, respectively.
Using infrared technology, the Elcometer 3045 provides a fully automated Persoz or Konig pendulum hardness test with no human intervention ensuring accurate, repeatable results.
Wilson Instruments, an Instron company, announces the release of their Ready Block program for Rockwell hardness test blocks.
Scratch resistance is dependent on adhesion as well as hardness and is as much an adhesion test as a hardness test.
Among the various hardness test methods, the Rockwell hardness (HR) test is the most widely used method for testing metals and other materials due to its simplicity and quickness of execution.
The part's size, shape, flatness, surface condition, microstructure (homogenous or non-homogenous), effect of indentation on the part's function and number of components to be tested all need to be considered when choosing a hardness test system.