It is used to calculate a rate equation for normal grain growth and the size distribution in the material. It predicts a maximum size of twice the average size. The theory is modified to take into account the e
Abnormal Grain GrowthSurface EffectsIn‐situ TEMNanostructured metal thin films have been shown to have unique thermal, mechanical, and electrical properties when the internal structure can be maintained. However, this far-from-equilibrium structure has been shown in many cases to be unstable at ...
M. Hillert On the theory of normal and abnormal grain growth Acta Metall, 13 (3) (1965), pp. 227-238, 10.1016/0001-6160(65)90200-2 View PDFView articleView in ScopusGoogle Scholar [38] M.M. Attallah, H.G. Salem Friction stir welding parameters: a tool for controlling abnormal grain...
Among the various abiotic stresses, low temperature adversely affects germination, normal plant growth, development, and phonological events. Consistent with the increasing temperatures, crop development is expected to be faster; thus, phenological stages will be reached early, and the length of the ...
grain growthdomainsdielectric constantLa/Mn-codoped BaTiO3 systems, obtained by solid state reactions, were investigated regarding their microstructure characteristics and ferroelectric properties. Different concentrations of La2O3 were used for doping, ranging from 0.1 to 5.0 at% La, while a content ...
Table 2 Optical properties of normal and damaged soybean seeds Full size table Prediction results of soybean pest damaged degree In this study, three methods, namely SVM, GRNN, and MLR, were used to build a prediction model for soybean pest levels. The training set and test set were set at...
An anomalous shape effect is found that the radial normal stress and mean stress distributions around a nanosized void or bubble are far from the spherical symmetry, which is ascribed to polyhedral geometry characteristic of the nanosized bubble and physical mechanism transition from crystal surfaces ...
High magnetic field is a powerful tool to tune the microstructure and improve the properties of materials. In this report, the nucleation behavior of undercooled Co76Sn24 near eutectic alloy under strong homogeneous and gradient magnetic fields have been investigated using glass slag fluxing method in...
In his gastraea theory, Ernst Haeckel (1874) imagined a gastrula that was like a planula larva on a biofilm, where an intrusion is created that produces a restricted, nutritive, and relatively stable environment. Such an environment is the ideal situation for the first interactions with the ...
For either case, two parameters describe the deviation from steady state: umax is the ratio of the largest grain radius to the critical grain radius, and Fo is the initial fraction of grains larger than twice the critical radius. The analysis is applied to lognormal GSDs obtained from ...