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Creep flow is due to various deformation mechanisms (dislocation motion, grain boundary sliding and/or vacancy flow) and fracture mechanisms (formation of cavities, wedge cracks and/or transgranular fracture).
The small size of specimens used in the small punch testing is generally not suitable for investigation of the phenomena depending on the properties of individual grains like deformation texture.
In the present experimental composite, the grain size is reduced to 100 – 200 nm by the ECAP procedure and we suppose that the number of grains across specimen thickness is sufficient.
Special attention must be paid to microstructural quantities like fibre orientation or the proper grain size.

The medium-coarse grained granite of which the drillability grade was VII was chosen.
With the sintering temperature rising, the activity of metallic atoms was enhanced, so the number and size of gaps within particles rapidly decreased, and the fracture structure was denser.
When the sintering temperature was over 800 °C, the over growth of grain size tended to occur, resulting in the decrease of hardness and bending strength according to the Hall-Petch relationship.
The decrease of relative density (Table 2) caused by the growth of grain size is another reason why the hardness and bending strength decreased with sintering temperature rising while the temperature was over 800°C.
The insufficient sintering caused by low sintering temperature and the growth of grain size caused by high sintering temperature are the main reasons of the reduced properties of Fe-Ni sintered specimens. 2.

Zinc is generally believed to retard hydration of cement via the formation of a layer of amorphous Zn(OH)2 or amorphous Ca [Zn(OH)3.H2O]2 around anhydrous grains at the onset of hydration (Stumma et al., 2005).
Some cases of substitution of non-bridging silicate tetrahedra are nevertheless observed when the Ca/(Si + Al) ratio is greater than 0.95 (in this case the number of bridging tetrahedra is less important due to the reduction in the length of the chains).
Increasing the percentage of Zinc nitrates up to 5% changes the C2S polymorph from β to α and results also to the incorporation of zinc in tetragonal coordination into the disilicate compound (Ca2ZnSi2O7). 3.2 Scanning Electron Microscopy (SEM) Scanning electron microscopy (JSM-7000F FE-SEM) is used to take images to study the morphology of samples and obtain information on crystal shape, size and grain texture.
EDS analysis at different points of grains of the same shape shows intermediate values between the stoichiometric Zn6Al2(OH)16CO3.4H2O and non-stoichiometric Zn0.61Al0.39 (OH)2(CO3)0.195.xH2O, an example is given for a position 1 in figure 4.
The EDS analyzes at various points of the identified grains show the only presence of Zinc and not of aluminum.

User material subroutine and Programming highlights ABAQUS offers a large number of user subroutines as a secondary development platform.The user can define different models to meet their requirements.
Accroding to Eq. 7, coarse-grained soil’s b is smaller than Clay’s .The Stress level is as Eq. 8
Choice will be made on the number of the parameters.
Example 2.This example use the coarse-grained soil’s large-scale triaxial test of Yalong River Hydropower Station and the triaxial compression test of Bejing fine sand [13].
In the test, the undrained shear strength number is taken after the soil is consolidated under confining pressure 500kPa, 1000kPa and 2000kPa.

Table1 Material proportion of the powder cores Wire number Cover material Powder core material(wt%) NW1 NW1 NW2 NW2 NW3 NW3 08F steel band 40%Mn+14%Cr+20%Cr3C2+20%NiAl+5%FeB+1%FeSi 30%Mn+14%Cr+13%Cr3C2+30%NiAl+10%FeB+3%FeSiRE 30%Mn+14%Cr+20%Cr3C2+20%NiAl+10%FeB+6%FeSiRE The 20G steel of 60mm×40mm×4mm is selected as the substrate of spraying coatings sample.
Observe the phenomenon, such as the crack, stripping or tilting, of the surface of the sample’s coatings every time when it’s cooled off by water, and record the cycling numbers.
It is also needed that the erosion grain is 0.15~0.18mm multi-angled corundum sand(Al2O3) and the amount of 300g grains is used as one erosion unit.
As for the erosion percentage, it is represented with the volume loss owing to the sample surface erosion by unit amount of grains. 1.3 Study of Microstructure and Test of Mechanical Properties.
Because of the chemical activity of the rare earth, it can reduce the generation of the oxide to lower the number of impurities in the spraying coatings.

Despite the small number of parameters that require identification, the model showed similar ability to reproduce the main features of elasto-visco-plasticity of mild steels when compared to other physically-motivated models from the literature [4,5].
In this process, several features of the microstructure are lost through the modeling (texture, grain size, etc.) and are replaced by the usual phenomenological counterparts (yield function, hardening parameters).
Implementing a homogenization scheme within a 3D finite element framework allows coupling the effect of the microstructure heterogeneities (volume fraction, grain size etc.) with heterogeneous stress and strain fields.
Depending on the scale description, microstructure design (volume fraction of the phases, grain sizes etc.) can be optimized in order to improve the in-use properties.
Based on physical foundations, the proposed model requires a reduced number of fitting material parameters in comparison with other models from literature.

This instability induces the fracture of the growth front, reducing the number of the active points which meet the requirement of the nucleation, and increasing the growth of the nuclei.
Therefore, the number of nucleation points is too large to inhibit the growth of crystal nucleus.
The results demonstrate that the grains tend to refinement and uniform, and the surface becomes smooth with the increase of jet velocity.
The high current density causes concentration polarization, and results in a higher grain growth speed than the crystal nucleus formation rate.
As a result, the grain size increases with the current density.

It is known that the total surface of the grains of mineral powder in the composition of asphalt concrete is approximately 90%.
Shukhov, it was found that waste WMS are highly active due to the large number of active adsorption centers on the surface [14].
The grain composition of stone-mastic mixtures is presented in Tab. 2.
On the surface of the waste WMS contains a large number of acid and main Brensted centers.
Their number increases during grinding.

To build the dependency of the collision number on the number of ferromagnetic bodies, we have to define the parameter α.
Figure 3 shows the dependency of the collision number Z on the number of ferromagnetic bodies NT.
Figure 3 – Dependency of the collision number on the number of ferromagnetic bodies: the solid line is the plot obtained by the formula (6); the dashed line is the plot based on D.D.
With the optimal VLD parameters, the number of collisions is 3700.
[6] Ibragimov R.A., Pimenov S.I., Izotov V.S., Effect of mechanochemical activation of binder on properties of fine-grained concrete.

The number of cycle with loading decrease of 25% was thought as the fatigue lifetime.
Kanchanomai et al[2-3] had carried out low cycle fatigue tests of 63Sn–37Pb eutectic solder materials using the non-contact strain controlled fatigue test system at a constant temperature of 20°C,and found out that The low cycle fatigue behavior of 63Sn–37Pb eutectic solder followed the Coffin–Manson equation with the fatigue ductility exponent of 0.63, During the fatigue tests, small grains (approx. 5–10 μm) formed along the fracture surface (mostly in the Sn-rich phase).
The Load Drop.The relationship between the shear stress amplitude and number of cycles shown in Fig.3 could be divided into three stages [7]: rapid decrease, steady stage and acceleration stage.
Thus, the fatigue life in this study will be defined as the number of cycles corresponding to a load drop of 25% for Sn-Pb[9].
(2) The number of cycle with loading decrease of 25% was thought as the fatigue lifetime in term of the increasing descending rate of load rapidly with loading decrease of 25%