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There is a large number of lath martensite exist in the weld line of DP-TWBs.
According to Fig. 2, there is still a large number of lath martensite exist in the weld line when the material deformed at T=550˚C (as shown in Fig. 2 (a)).
The average grain size and volume fraction of recrystallization of weld line and base metal of DP-TWBs at different conditions are shown in Table 1.
Table 1 The average grain size and volume fraction of recrystallization of weld line and base metal of DP-TWBs at different conditions.
Xiong: An Adaptive Prediction Model of Grain Size for the Forging of Ti-6Al-4VAlloy Based on Fuzzy Neural Net works.

Constrained sintering of films has been analyzed both theoretically and experimentally by a number of authors.
Compaction of the deposited film can then reduce the number of macro-pores, and hence the likelihood of persistent sintering damage formation.
However, the increased green density in turn leads to a considerably more favorable trajectory in grain size-density space
In the present case, liquid-filled pores connect to the film surface via grain boundaries that have a residual, high diffusivity grain boundary film which allow the removal of the liquid in the remaining filled pores.
Grain boundaries in a sintered sample fired for 1 hour at 800 oC in a saturated Li2O atmosphere.

External environmental indicators: land area, agricultural machinery power, total grain output, the number of students in the school, rural employment, local government budget, rural households, the local number of scale enterprise, scale industrial output as 9 indices.
From the analysis results, the number of increasing returns to scale, constant, decreasing respectively is 131, 78, 1792, it can be seen that most are decreasing returns to scale.
Rural employment and the number of students in the school have a negative impact, namely the increase of rural workforce and students in school is beneficial to reduce the number of rural financial institutions.
Table3 The influence to redundancy of agricultural loan balance external environment Coefficients standard error P value   total grain output -0.226312 0.080357 0.0049 local government budget 3.505580 0.311903 0.0000 rural households 0.952048 0.477749 0.0463 the local number of scale enterprise 2232.137 137.8112 0.0000 From the chart we can see that total grain output has a negative impact on agricultural loans, which means increasing total grain output is beneficial to reduce the redundancy in agricultural loans.
And the local government budget, rural households, and the number of industrial enterprises above designated size have a positive impact on the redundancy of agricultural loans.

Both have many pits on the surface: the pits on the first specimen are smaller in size and number than those on the latter one, which results in the tougher film on the first.
On the other hand, disappearance of the slip lines and coarsening of grains near the surface are recognized, which may be caused by recovery and recrystallization due to the heating effect of electric discharge.
Fatigue strength is remarkably decreased probably due to the softening of the surface layer, which is caused by cancellation of work hardening and grain growth during anodizing.
Tensile strength and hardness are improved by anodization unless grain coarsening occurs at a large anodizing bias.
Improvement of these properties is thought to be due to a decrease in network precipitates of β-Mg17Al12 phase and fine precipitation inside the grain of α-Mg phase at moderate temperature.

In Fig. 2(a) the as-deposited film show streak across the crystalline grain in FE-SEM image.
These imperfections increase the number of scattering centers that provide a high resistance of the film at 500 MΩ.
In Fig. 2(d), at 600 oC annealed temperature for 1 hour higher thermal energy provide atomic movement to decrease the streak, there are more perfect grain against the consuming of grain boundary atom and provide more open space the perfect grain tend to reduce resistance but open grain boundary tend to increase resistance but in this case the resistance is minimum at 450 MΩ.
In Fig. 2(e) more thermal energy provide atomic movement for grain growth under consuming of the small grain and grain boundary atom to provide more open space between grain and the resistance of the films increase (600 MΩ).
In Fig. 2(f) grain growth process increase grain size and provide more open space the resistance of the film become 1,250 MΩ which show in Fig.3.

Laves phase revealed much higher intensity than carbides in backscattered electron (BEC) images (Fig. 3) as a result of atomic number contrast [3].
After long creep exposures the increase in particles number has not been so high, however size of Laves phase particles significantly increased.
They occurred in all specimens and were spread non-uniformly; they were observed only in some of grains and also at grain boundaries.
Various types of grain boundaries were evident in the structure of tempered martensite: high angle boundaries, which separated prior austenite grains, boundaries of martensite blocks and laths and low angle boundaries of subgrains.
First, number of Laves phase particles was higher in the A segment in as received conditions than in the B segment.

To reveal the grain structure specimens were prepared by standard metallographic techniques and etched with Keller's reagent.
The grain boundaries were observed to be decorated with second phase particles (black dots).
The transverse grain boundaries have more particles per grain boundary length compared with longitudinal ones.
Triplanar optical micrograph illustrating grain size, grain morphology, particle density and distribution of as-received materials. reaches minimum at the peak aged condition and slightly increases as the coarsening occurs.
These features may suggest that the presence of coherent S" leads to inhomogeneous slip and the number and size of S phase is not sufficient to homogenize the flow stress during deformation.

With the amount of the nano-MgO oxide addition rising, the number of the inclusions in the sample firstly increases and then decreases gradually.
In that way, the particles of non-metallic inclusions and calcium magnesium oxides, which were precipitated from pipeline steel during solidification, were uniformly distributed in the austenite grains or at the boundaries.The particles impeded effectively the growth of austenite grains in HAZ during the high heat input welding, with promoting the formation of acicular ferrites [4,5].
With the amount of adding nano-MgO oxides rising, the number of the inclusions in the sample firstly increases and then decreases gradually.
The number of the inclusions is the least, and the aggregation phenomenon appears obviously.
The number of the inclusions is the least, and the aggregation phenomenon appears obviously.

Introduction The present scientific research is intensive focused on ultra-fine grained structures formation (UFG with grain diameter 30 nm- 1μm), and nanoscale structures (NSG with grain diameter ≤ 30nm) in polyedric metallic materials, attained during the use of severe plastic deformations (SPD).
Mechanical and structural properties after ECAP The change of mechanical properties in dependence on number of ECAP passes is shown in Fig. 4.
Average subgrain size in dependence to number ECAP passes is given in Fig.11.
The absence of these fine particles, which retard grain growth, probably evoked the solid solution grain growth at high temperature of SA (>560°C) and then the hardness decreased.
A single ECAP pass decreased the grain size diameter of 325 µm; that means 20% grain refinement was obtained.

After completion of the project, the whole county’s effective irrigation area, water-saving irrigation area, efficient water-saving irrigation area, irrigation water efficiency and the overall grain production capacity will be increased significantly with improved benefits from increased yield, saved land, reduced labor and improved water efficiency.
The work will lay a solid foundation on the stable national grain yield.
Before the project, the grain yield is 800kg/mu; after the project, it can reach 880kg/mu.
Within the project area, the increase of grain production is estimated 1,456,000kg, which means an increased value of RMB 3,494,400yuan calculated at the price of RMB 2.4yuan/kg for both wheat (including high-quality wheat) and corn.
The first author’s address: Qingan Li, male, Reconnaissance, Design and Research Institute Of Yellow River Shandong,Jinan. engineer, engaged in hydraulic engineering research work Address：No.111 Dong Guan street, Li Xia district, Jinan, Shandong, China Zip code：250013 Telephone Number：15866622033 Email：63673236@qq.com References [1]Information on http://www.gov.cn/zwgk/2009-06/26/content_1351203.htm [2]HOU Suzhen, WANG Yunzhang: Hydrological Science and Technology Information, Vol. 3 (1993), p. 71-76,in Chinese