The phrase "a decrease in grain" is correct and usable in written English.
It can be used when discussing a reduction in the quantity or availability of grain, often in contexts related to agriculture, economics, or food supply.
Example: "The recent drought has led to a significant decrease in grain production, affecting food prices worldwide."
Alternatives: "a reduction in grain" or "a decline in grain".
The increase in Vs led to a decrease in grain size and an increase in the compressive residual stress.
For small grain sizes, a large fraction of this drop was attributed to a decrease in grain size strengthening.
Further, a decrease in grain size in the sintered sample leads to a shift in the ferromagnetic transition temperature (TC) from 375 to 370 K.
These improvements, and the increase in hardness, are attributed to a combination of a decrease in grain size and a formation of solid solution nitride.
The scanning electron microscopy (SEM) showed that increasing Co doping concentration would cause a decrease in grain size while the thin film surface remains crack-free.
The membranes with smaller platinum grains gave higher hydrogen fluxes because the effective platinum area for the hydrogen surface diffusion increased with a decrease in grain size.
High temperature stress increases the growth rate of grain during the early ripening period and reduces the duration of growth, but the increase in the rate of grain growth fails to compensate for the reduction in the duration of grain growth, which ultimately results in a decrease in final grain weight [ 4, 5].
This hardness increment is owing to grain size refinement via SPD, i.e., an increase in the Df-c enables high εs, leading to a decrease in average grain size.
With this present research work, it is demonstrated that there is an improvement in forgeability and microhardness as well as a decrease in the grain size of the material predeformed by SPD.
The regression analysis revealed that the material deformation was more homogeneous with a decrease in the grain size and an increase in the feature dimensions when the µLSFD process was employed.
An increase in hardness and electrical resistivity with an increase in negative substrate bias is also attributed to a decrease in Ni grain size and an increase in point defect density.
