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Strength is also improved due to a variety of mechanisms, including grain refinement, creation of additional obstacles to dislocation movement, etc.
The inverse problem of eigenstrain analysis concerns using the knowledge of residual elastic strains (or stresses) at a number of measurement points to retrieve the underlying source eigenstrain field.
Frameworks for inverse eigenstrain analysis proposed in [14-15] make use of a robust and efficient least squares approach to find the unknown eigenstrain distributions from residual elastic strains measured at a finite number of experimental points [16-17].

In the range of 250-350°C, the number of active slip systems are enhanced with increasing temperature, and the crystal structures of Al-Li alloy are crushed and subdivided because of the development of dynamic recrystal, so the strain softening appears.
The reason for the strain hardening enhanced above 350°C perhaps is that, the number of active slip systems are not enhanced with continuously increasing temperature, and the recrystal grains of Al-Li alloy begin to grow.

Because the bubble is very small, interface numbers between bubbles and resin increase.
(a) Diameter of GB is 20~30μm (b) Diameter of GB is 50~90μm Fig. 1 SEM micrographs of different diameter GB From Fig. 2 optical microscope picture, GB is seen uniformly dispersed in PET matrix, basically single grain distribution.
Because all these three formula were added the same quality score GB, 10% .The adding number is more when GB particle size is smaller, then the sample forms more times reflex and reflectivity is higher.

Introduction Vanadium is a kind of shallow silver-gray metal with high melting point, large hardness and high resistance, which can be used as a new structural material [1].Vanadium served as the alloy component of steel has the function of refining steel matrix grain, in addition, it is also used to manufacture titanium alloy [2].
When the phase ratio is 1:10, the extraction rate is 49.85%, it is low, and the requirement segment number is excess.
In order to obtain the theory extraction number of vanadium, the experiment can be done in the following condition: room temperature, Vo:Va = 1:5, organic phase composed by 20% HDEHP and 5% TBP and 75% sulfonated kerosene, pH maintained at 2.3-2.7, the extraction time for 5 min.

Beremin also suggested that the reference volume, V0, was a volume equivalent to about ten grains, typically V0=0.001 mm3.
The failure probability Pf for experimental results was determined using: N .i Pf 50� = (3) where N is the total number of specimens, and i the rank or order number.

It was mainly used to control the crystal grain size and change the structure of materials in the preparation process of nano-materials.However, the reports on the preparation of anode materials with AEO-7 are limited [13,14].
(standard number GB / T 5270-2005); scratch test: to draw a grid with a small knife on the surface of the electrode, observe the phenomena of peeling, spalling, etc.
It shows that the anodic current peak decreased as the number of cycles increased.

The number of source materials samples in each site is indicated in Table 1.
The number of the source materials samples Reaches Arable land Woodland Urban land Bank sediment Dongtiaoxi Upstream 7 9 5 9 Midstream 8 7 7 10 Downstream 5 4 10 7 Xitiaoxi Upstream 7 9 6 8 Midstream 10 8 8 8 Downstream 6 5 10 6 The geochemical variables of the samples were measured by the standard methods.
The grain size was measured using a Laser Size Analyzer.

Chemical composition and Properties of WC-15%Co Composite Wt of Wt of Grain Density Young’s Transverse Hardness Coeff.of WC Co Size g/ c.c Modulus Rupture thermal % % microfine GPa MPa HRA ExpansionK-¹ 85 15 < 1 14 520 3102.64 87.5 5.9 *10-6 3.2.
Additionally, large number of experiments has to be carried out when number of machining parameters increases.

This leads to limiting mobility in the sintering necks and Zn atoms stay in the area of particles contacts and form grain boundaries.
Powder particle boundaries were the weak place of the structure and the powder particles transcrystalline fracture was limited with the hardly deformable HCP lattice structure with only a small number of active slip systems (only 1 at the room temperature) [14].
The mechanism of the MgZn2 brittle Laves phase fracture was probably based on the creation of a large number of small microcracks due to the apllied stress.

According to the particle size distribution (Table 2), the loam has a low content of coarse-grained inclusions (the number of particles> 0.5 mm is less than 1%).
Loam is low-dispersion raw materials (the number of particles <0.001 mm – 20-30%) according to the content of fine fractions.