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The addition of fly ash with lime improved their mechanical properties, these being dependent on the ash content, moisture and number of load cycles.
The fly ash is a residue of fine-grained, low density carried by the gas stream.
The values ​​of grain density (Gs) are presented in Table 2, and the same as the previous property, the values ​​were very similar to those determined by other authors for the same material.
The results showed that by increasing the amount of ash is the decrease in grain density for all materials in question.
Table 2 Specific Gravity of Grains Material/Mixture Specific Gravity of Grains (Gs) S 2,772 BA 1,988 FA 2,105 S70/BA27/L3 2,526 S60/BA37/L3 2,411 S90/FA17/L3 2,688 S80/FA7/L3 2,603 S70/BA30 2,445 S60/BA40 2,370 S90/FA10 2,632 S80/FA20 2,578 The particles size analysis and soil classification, of the Unified Soil Classification (SUCS), all materials and mixtures studied are shown, and were related to the class SM (silty sand), as showed in Figure 1.

Dislocation movements are stopped at grain and twin boundaries and obstruct further dislocation movements.
The back stress X is thus driven by the number of stopped dislocations n.
The back stress increases with the internal variable “number of stopped dislocations” n.
This 1-dimensional model has been extended for cyclic loading and for a full 3-dimensional formulation with the tensorial back stress: X=MμbL n (13) using the Frederick-Armstrong ansatz (see for example Banabic (2010)) for kinematic hardening through the evolution equation for the direction dependent “number of stopped dislocations” at grain and twin boundaries: n=λb(23εpl-nn0spl). (14) The number of stopped dislocations is bounded by the maximum number of stopped dislocations n0. spl denotes the accumulated plastic strain and the internal length scale L – a characteristic measure for the microstructure - is given by 1L=1d+F2e1-F. (15) The internal length scale is a function of the twin volume fraction F, which is – following the proposal of Bouaziz et al. (2008) – an empirical exponential function of the accumulated plastic strain F=F01-e-β(spl-εinit)m. (16) The dislocation density ρ increases with accumulation of dislocations and decreases by dynamic recovery.
Scott, Effect of grain and twin boundaries on the hardening mechanisms of twinning-induced plasticity steels.

For these experiments, the thickness was varied from 0.25 to 1.625 mm; the process geometries (both specimen and tooling) were adjusted based on the law of similarity so a consistent strain is predicted; and the grain size was manipulated through heat treatment to vary the number of grains through the thickness.
Schematic of subset and step sizes for DIC analysis After the DIC analysis, a dialog appears, which lists the number of points correlated, average iterations, confidence, and points per second.
The confidence value is a one-standard-deviation confidence in the location of the match; thus lower numbers indicate better correlation.
From this parametric study, the step size was chosen to be 3 and the subset size was chosen to be 30 and 40 for the 1.625 mm and 0.5 mm thickness specimens respectively since these values provide relatively lower iteration and confidence numbers, see Table 1, which indicate a better correlation.
Kinsey, Deformation size effects due to specimen and grain size in microbending, J.

With decreasing power the size and number of defects in the structure of titanium samples increase.
At the power increasing, insignificant growth of grains and an increase in the content of β-phase occurs.
Figure 4 shows the effect of speed changes on the number and size of defects.
Fig. 4 shows that speed increase leads to increase number and size of defects.
Grains are elongate in the growth direction of the samples.

The BSE method facilitates the detection of tungsten carbide particles since it displays elements with a higher atomic number in a higher luminance and vice versa due to the higher electron backscattering probability.
Compared to coating A there are less coarse carbide grains (approx. 1 µm in diameter) and a high amount of submicron sized grains (approx. 500 nm in diameter).
Number of cycles Fig. 15.
a) LM image of polished cross section. b) SEM image of fractured surface reveals the grain structure.
The coatings were further analysed in fractured cross section in SEM to reveal the grain structure (refer to Fig.16b).

Susceptibility may arise for a number of reasons, including an electrochemically heterogeneous surface or destabilisation of a passive film.
Introduction There are a number of approaches that can be employed to enhance the corrosion resistance of a material, including the use of various paints and conversion coatings, or as is the case for stainless steels, materials can be specifically alloyed for enhanced corrosion resistance.
There is strong evidence that the chromium deposits and diffuses preferentially at the austenitic grain boundaries, which was similarly reported [7] for chromium FBR-CVD of AISI 304 austenitic stainless steel.
Perez et al [7] have suggested that the a chromised layer growth mechanism on austenitic materials commences with the diffusion of chromium at austenite grain boundaries, saturation of the FCC structure with chromium, and subsequent conversion of the FCC structure to BCC.
Figure 1 Optical micrograph of chromised 316SS showing a continuous chromised layer with an approximate thickness of 6 µm, and chromium diffusion at austenitic grain boundaries.

In addition, through H2SO4 solution treatment and along with increased H2SO4 concentration, the orientation growing of Pt(111) would be promoted, and Pt-Pt interval on surface of PtCuLaOx would reduce owing to Cu was dissolved from (Pt), and average grain size of PtCuLaOx decreased and crystal face spacing steady.
Fig. 1 XRD superposition results of F-1 and F-3 samples The average grain size (D) of F-1 and F-3 samples, on the basis of information in Pt(111) diffraction peak and Sherrer equation (Eq. 1) and Bragg equation (Eq. 2), was work out respectively and shown in Table 1, and found that D would increase along with rising H2SO4 concentration.
Sample D [nm] di [Å] d0 (ASTM) [Å] (di-d0) [Å] F-1 53.4 2.2400 2.2650 -0.0250 F-3 43.7 2.2528 2.2650 -0.0122 (1) (2) Where, k is constant of Sherrer (0.9), λ is X-ray wavelength (0.15405nm), θ is diffraction angle of Bragg, β is FWHM, d is crystal face spacing, n is natural number.
In addition, through H2SO4 solution treatment and along with increased H2SO4 concentration, the orientation growing of Pt(111) would be promoted, and Pt-Pt interval on surface of PtCuLaOx would reduce owing to Cu was dissolved from (Pt), and average grain size of PtCuLaOx decreased and crystal face spacing steady.

The value of this indicator depends on a number of factors: the material flow within the die weld chambers, an adequate pressure level acting on the weld planes and finally the evolution of the metal microstructure.
In multi-hollow sections, the number of cores equals the number of voids.
Around the edges of the extrusions, local conditions have caused recrystallisation commonly identified as the peripheral coarse grain zone (PCG).
In certain instances an equivalent phenomenon can also be observed as an envelope of coarse grains surrounding the weld seam.
Acknowledgements This research was partially carried out under the project number MA.08089 in the framework of the Research Program of the Materials innovation institute M2i.

Concrete with artificial sand has received an increasing number of applications in engineering, artificial sand for sand has been classified as building by GB/T14684-2001 [1].
At present there are two main forms of artificial sand production in China, is specialized in producing of machine-made sand, graded fineness modulus can do better than the natural sand, grain and natural sand similar.
Grain-shaped triangular or rectangular body, surface roughness, angular sharp, some more flaky particles.
Mould of concrete load on vibration counter vibrations to the uniform at least 30s, if uneven vibration, would produce a large number of micro-cracks on the surface of the specimen, concrete strength test of accuracy.
Concrete numbers immediately packed into molds, worn after about 1 hour.

The distance increase between impact axis and indentors placement regardless of their number and form, leads to a decrease in the proportion of energy transmitted to the deformation zone.
In the case of multi-indentors schemes of loading waveguides with a spherical end face transmit 20 to 36% (depending on the number of waveguides) more energy than waveguides with a flat end.
When the impact pulse is passing through four waveguides its energy falled on each indenter is reduced by 46%, compared to one-indentor scheme of loading. 30 40 50 1 2 3 4 Distance from the axis,mm Number of indenters Indenter with flat base 10 10 15 15 20 20 25 25 30 40 50 1 2 3 4 Distance from the axis,mm Number of indenters Indenter with spherical base 15 15 20 20 20 25 25 30 30 30 40 50 1 2 3 4 Distance from the axis,mm Number of indenters Sphere Ø18.9 mm 15 20 20 25 25 30 30 35 40 35 30 40 50 1 2 3 4 Distance from the axis,mm Number of indenters Sphere Ø26.9 mm 35 15 20 20 25 25 30 30 Figure 4.
Tsenev, Plastic deformation of alloys with submicron-grained structure, Mater.
Mulyukov, Structure and properties of ultrafine-grained materials produced by severe plastic deformation, Mater.