Measured surface hardness from rebound hammer tests in situ appears to be correlated to the results of laboratory breakage tests on core samples.
Each restoration plot was cleared of BSC (removal of the upper 1 4 cm) and then checked for recovery every 6 months by measuring surface hardness, chlorophyll content, chemical and physical soil parameters, and identification of new established species.
Micro-hardness tester was employed to measure the surface hardness.
Material weight loss is measured by weighing, and measurements of the surface, hardness, and fatigue cracks are performed using a scanning electron microscope (SEM) and an optical microscope.
The surface hardness, measured by pencil scratch test, improved with increasing laser power (P).
The resistance of mortars was evaluated by visual inspection and by measuring the change in surface hardness and weight of the specimens.
The difference between used remelting technologies was observed in the amount of dilution between coatings and substrate material, resulting in a decrease of measured Vickers microhardness and surface hardness and causing gradual changes of instrumented hardness and modulus of elasticity.
In this paper, we proposed a wiping motion that makes it possible to measure the surface condition as surface hardness and slipperiness.
The iron castings were measured qualitatively using a stereo microscope and its surface hardness was also measured using a Rockwell hardness testing machine.
The role of layer pair spacing and grain size are now evaluated as measured by tensile strength and surface hardness.
