The phrase "and hardness in a" is not a complete or clear expression in written English.
It may be used in contexts discussing qualities or characteristics, but it requires additional context to convey a complete thought.
Example: "The sculpture displayed both beauty and hardness in a way that captivated the audience."
Alternatives: "and rigidity in a" or "and toughness in a".
Khan et al. [20] studied the deformation behavior and hardness in indentation of a single crystal MgO using Vickers and spherical indenter, and showed that crystal orientation has a distinct influence on the indentation crack patterns.
They were rolling against two types of steel testing balls with different surface roughness and hardness, in fully lubricated condition at a maximum compressive stress of 6.58 GPa and at a speed of 10 000 rpm for over 135 million stress cycles.
This will be a bit painful at first, but it will ease the tenderness and hardness in the breasts.
Bill Bishop, principal engineer at Wilson's rackets technology laboratories in Elk Grove, Ill., tests balls for hardness in a hefty metal desktop ball smusher called the Stevens Machine.
A comparative analysis of the results indicated that crack growth behaviour in the FSW joints was generally dominated by the weld residual stress and that microstructure and hardness changes in FSWs had a minor influence.
The hardness increments of lower carbon content materials is smaller, as shown in Fig. 8a, and hardness has a direct influence on wear resistance.
The results show similar tensile strength and hardness distributions in both processes, whereas an opposite trend in the yield-to-tensile (Y/T) ratio was found where, in compressed pipes, the ratio was lowered.
One percent added to copper increases its strength and hardness with only a small reduction in electrical conductivity.
The model is validated by comparison with experimental microstructure data obtained from transmission electron microscope examinations and hardness measurements, covering a broad range in the experimental conditions.
Characteristic changes in the Raman spectra and linear correlations between characteristic Raman quantities such as the ID/IG ratio and the hardness in all layers as a function of annealing temperature were found, which are related to changes in bonding and nanostructure.
