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However, at room temperature the poor ductility restricts the application of magnesium alloy to the component forming because of its limited number of slip systems with a hexagonal close-packed (HCP) lattice.
During hot-work, DRX is one of the most important methods to refine the grain size and soften the alloy, which can be utilized to control the microstructure evolution and improve the ductility.

The pre-heat-treatment was normalization, and the grain size level was 6 to 7.
Fig. 2 Sampling method 1 5 4 3 6 2 Sampling: Six samples were sampled along the pipelines axial direction by uniform interval, and numbered from 1-6, shown in Fig. 2.

Because spall fracture is practically important in high speed impact problems such as automobiles, aircrafts, and military vehicles, a large number of experiments on various kinds of material were carried out.
At this specific scale level, the solid is formed by crystal grains, heterogeneous impurities, material defects and so on.

Silicates of composition R2O3+2SiO2 (R = rare-earth ion) show a higher number of polymorphic forms than other rare-earth silicates [1].
For the analysis of our data, an additional temperature-independent term was added to the thermal resistivity (1/λ) to Eucken’s rule as: (6) The physical justification of this term is the existence of numerous additional scattering centers for phonons in D-Er2Si2O7, caused by structural and chemical imperfections and the influence of the grain boundaries.

The probability for the nth observed data can be written as follows: (6) (7) (8) For total number of fine-grained soil samples is k, including n silt and (k-n) clay, likelihood function equation can be given as, (9) Assuming the measured qt,net,I , FR,I , FCi ,PLi , LLi and the CPT/CPTU data based on USCS are all correct, so test or estimate error does not exist and equation (10) meets normal distribution with the mean value ĝ (...) and the standard deviation σε

After recrystallization, we obtained some green NNSH crystalline grains. taking NNSH crystalline particles dissolved in ultrapure water, to prepared saturated solution with saturation temperature 65 ° C, 100ml of the saturated solution was placed in a beaker with sealed glass lid, stired the solution with a magnetic stirrer and heating mother liquor to 65 ° C.
N was number of Ni2+ ions per unit volume in the crystal.

Ni layers have been adopted for an increasing number of CNT-applications in recent years.
The face-centered cubic (fcc) structure of Ni may be maintained within small grains.

Electrolytic cell At the same time, the large number of different types of working parameters (mechanical, electrical, chemical) makes it difficult to choose the optimal machining technology [2].
Productivity also increases with growing contact pressure (Fig.4), a phenomenon which is justified by abrasive factor amplification and diamond grains penetrating deeper in the part material.

The following is stated in a number of scientific studies: as long as the stress-strain ratio of compound tension layers in non-uniform (two-layers) foundations increases due to interactions the thickness should decrease as well.
Sketch drawings of the areas are given in the Figure 1, where the tests № 2-4 have been made with the use of gravel with pebbles, the test № 5 – gravel-pebble with sand, the test № 6 – average-grained sand, and the test №7 – heavy clay loam.

In this paper, the controlled synthesis of pill-like ZnO nanoparticles with the average grain diameter of about 75 nm, under mild conditions.
This phenomenon showed that a large number of hydroxyl covered on the surface of ZnO nanoparticles[8].