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The number of cycles to failure, Nf, was defined as the cycle number at which the maximum stress decreased by 30%.
Results and Discussion As shown in Fig. 3(a), there were no sub-grains in the grains of ENiCrFe-1.
Some coarse precipitates distributed in the grains and at the grain boundaries.

For the visualisation of detached cells, crushed pyrite with a grain size of 50 to 100 µm was incubated with 5*10 8cells/mL for 3 days, then cells were detached by mechanical agitation for 5 minutes as described in an accompanying paper [6].
B: Planktonic cells grown on pyrite grains for 3 days.
C: Cells detached after 3 days from pyrite grains.
The mixed culture with equal cell numbers of both organisms showed 60% attachment.
Initial cell numbers of 5*108cells/mL in pure cultures and 2.5*108cells/mL of each in mixed cultures with 10g pyrite grains (50-100µm) were used.

We have use for the dendritic grains the envelope model already used by previous authors [5,13,15].
The initial number of grains is 109.gr/m3.
The existence of a recalescence in the beginning corresponds to the grain germination and growth.
The fluid flow in the bulk liquid takes away the equiaxed grains formed at the bottom of the ingot.
Since grain fraction and the grain density are directly linked by the dimension of the particle, attention has been paid to the numerical discretisation of the grain fraction balance and the grain density balance.

Since the grain size is controlled by grain refinement, the crystallographic texture of the as-cast material is almost random.
In such approaches the individual crystallites are assumed to deform by slip on a number of crystallographic slip systems so as to accommodate the prescribed macroscopic strain rate Dij.
The weight factors xi are derived from the corresponding nucleus densities per unit volume, Ni, as xi = Ni /Ntot where Ntot is the total number of nuclei.
Besides the cube bands, the pre-existing grain boundaries between the deformed grains can provide nuclei.
Conf. on Recrystallisation and Grain Growth, eds.

Moreover, the optical band gap of the films decreased to 3.13 eV with an increasing orbital occupation number of 3d electrons.
Moreover, from Fig. 3. the mean grain size increased by TM-doping effect and this leads to decrease in the grain boundaries (GB) scattering and thus an improvement in electrical conductivity [30, 31].
The preparation methods have effects on the grain size, grain boundaries, defects, impurities, oxidation and the actual doping level and therefore on the resistivity [31].
This formula indicates that finer grains are associated with more grain boundaries and thus higher mechanical strength.
Swygenhoven, Polycrystalline Materials: Grain Boundaries and Dislocations.

Hot deformation results in the formation of an equiaxed grain structure with a low dislocation density and a low level of internal stress.
During warm deformation a nonequiaxed grain structure forms and a cellular or fragmented structure appears inside the grains.
One of the main structural features of cold deformation of a number of materials is the presence of strain twins.
For example, in a number of dislocation theories the exponential dependenceε& ~ σ n was detected, where n ≥ 3.
In most cases, these dislocation clusters were situated in the vicinity of the grain boundaries and also around the pores.

There are a number of studies that have investigated HA-Al2O3, HA-ZrO2 and HA-CIG composites.
At the end of 3 weeks, the apatite accumulation also occurred on the ZrO2 grains.
The cell number increased in a time-dependent manner.
Apatite nucleation was also observed on ZrO2 grains.
The ALP activity level and cell number of the samples increased after 7 and 14 days of culture. 3.

The structural parameters such as crystal phase, lattice constant, grain size, average stress and strain, orientation, and many others are strongly dependent on deposition parameters, which are the pH of electrolyte, deposition technique, current density, substrate, as well as the type and amount of additives included in the electrolyte.
Each experiment was carried out using a plating bath that contains nickel sulfate hexahydrate as the source of nickel, cobalt sulfate heptahydrate as the source of iron, nickel chloride hexahydrates as complexing agent, boric acid as the buffer, and sodium dodycel sulfate as grain refinement agent.
Smaller crystallite size implies a greater number of grain boundaries that impede dislocation motion.
Obvious grain boundary can be found on the deposit.
Apparently, Fig. 3b-e possess colony-like morphology i.e. consist of a lot of grain colonies with varying size.

The majority of copper ore upper have oxidized zone of sulfide deposits, and some deposits have also been oxidized as the oxidation of medium-sized deposits, some valuable minerals in the ore are in the smaller distribution [3].Therefore, such processes ore mineralogical study will help us better design of grinding grain to achieve a better sorting results.
Pyrrhotite, pyrite: In the ore, it is the major metallic minerals, mainly in its granular form, a few be half-euhedral granular. grain size larger than 0.2mm,, some of the particle size smaller. a small number have been turned into brown iron corrosion.
See Figure5 and Figure6 ,the small pyrite and chalcopyrite (light yellow) are packaged by quartz and calcite, For dissociation, this part of the chalcopyrite required to grinding grain 0.03mm below.
Orthogonal reflective polarizer × 55 pyrrhotite,chalcopyrite and iron pyrite and pyrrhotite are fine-grained, the general size are 0.3 mm, the part of the particle size be below 0.3mm; pyrite have also a part of the micro-disseminated-shaped output; chalcopyrite and pyrite tight symbiosis with each other
Chalcopyrite and iron,pyrite and pyrrhotite are fine-grained, the general size be 0.3mm, the part of the particle size are below 0.3mm, and is often packaged by gangue mineral; pyrite also have a part of micro-disseminated-shaped output; chalcopyrite and pyrite tight symbiosis with each other. 3) In the grinding process, With the grinding fineness increase in concentrate grade , recovery were rising, when grinding fineness reached 90% -300 mesh, tailings grade still have a falling trend, taking into account the cost-effectiveness, it is appropriate to discrease the grinding amount.

A large number of fine equiaxed grains are formed in the preparation process of semi-solid slurry [13].
SSP can significantly improve the properties of parts under the effect of fine grain strengthening and fewer defects.
The primary α-Cu phase in the semi-solid squeeze casting is rose grains or equiaxed grains, and the eutectoid (α+δ+Cu3P) phase was surrounded by the primary α-Cu phase (Fig. 2c and d).
The melt nucleates during liquid melt filling due to mold chilling, but the number of nucleation is limited.
The Brinell hardness is affected by the density and grain size of the sample, the higher the density and the smaller the grain size, the higher the Brinell hardness.