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The number ‘’2205’’ shows the alloy’s typical composition of 22% Cr and 5% Ni.
During the growth moving domain walls may be pinned by grain boundaries, impurities, inclusions, dislocation pile-ups, etc.
The first one is the actual number of BHN pulses, called counts and the second one is the rms value of the envelope of the BHN called V1.
Tensile stresses increase the number of mobile 1800 domain walls, whose movement is eased from the application of tensile stresses.
It is observed that grains acquire an orientation towards the applied strain and in many occasions they are broken.

This is because when the contact pressures increases, two contact surfaces closer to each other, the number of contact spots increases, so that the real contact area increases and resistance is lowered.
On the one hand the production processing in the unclean working environment, contact surface itself may exist grain, on the other hand particles exist in working environment air, so contact surface exist grain is difficult to avoid.
Table 2 Test results resistance Photos Numbers force(g) A(mA) V(mV) R(mΩ) State a 100 100 1.988 19.88 partial pressed b 100 100 552 5520 just pressed c 100 100 166 1660 crushed d 100 100 154 1540 crushed e 150 100 1.172 11.72 partial pressed f 150 100 550 5500 just pressed g 150 100 158 1580 crushed h 150 100 124 1240 crushed (a) (b) (c) (d) (e) (f) (g) (h) Fig 2 Photos of 150-212μm particles after pressed Conclusion comprehensive tables 1 and 2: for the same samples, as long as the increasing load of contactor, its static resistance will be smaller; For the same sample, the more granular mesh (equivalent to single particle crushed), the static contact resistance get bigger; For the same contact pressure, particle size is different, its static contact resistance will be different.
Table 3 The size of the crushed particles Number 1 2 3 4 5 6 7 Size (μｍ) 151 162 184 200 220 252 294 The size of the particles are easy to be crushed is in 150 -300μｍ as showed in fig 3.
The presence of silica particles is increased at least 3 times than clean samples; When other experimental conditions do not change only increase the contact pressure, regardless of grain contact resistance will decrease. 2.

Current interest of the number of research teams is focused on the further use of mineral additives exhibiting pozzolanic activity.
Its use was assessed by number of studies aimed at mechanical, thermal and durability properties, however the influence of grading on reactivity has not been studied yet, that is the main motivation of this work.
Results after 28 days of curing are very similar for A1, A2 and A3 respectively, due to small differences in the grading and relatively high amount of coarser grains.
Reaction efficiency of single grain fractions can be proportionally conducted on the base of Portlandite consumption and the sieve characteristics of studied CPs.
Pavlik, Characterization of composite materials based on cement-ceramic powder blended binder, AIP Conference Proceedings, Vol. 1738, 2016, Article number 280004.

It is quite clear that the films contain single-phase SnO2 with fine polycrystalline grains oriented along the (110), (101), (211), (310), and (112) planes.
The average grain sizes of the ATO films were approximately 20-35 nm, respectively.
This result illustrates that the grain grows with the increase of annealing temperature of ATO films slightly.
Transmission of the ATO film was strongly affected by the thickness of the deposited layers, and an increase in the number of deposited layers reduced the transmission rapidly.
The transmission of ATO film was strongly affected by the thickness of the deposited layers; an increase in the number of layers rapidly decreased transmission.

At the grain boundaries of the primary α-Mg phase a compact Ba-rich phase (Mg21Al3Ba2) and a lamellar Ca-rich phase (Al2Ca) precipitate were present [6].
For the investigation of the corrosion fatigue behavior, constant amplitude tests were performed in the aforementioned electrolytes using a self-developed corrosion cell (Fig. 2b) until a maximum number of cycles of N = 2·106.
Significant differences in the numbers of cycles to failure were only determined in the low cycle fatigue (LCF) regime at σa = 70 MPa.
The maximum number of cycles was reached at only σa = 5 MPa.
Nevertheless, the fatigue crack propagation area is characterized by parallel, transgranular cleavage planes, which initiate at corrosion pits and are deflected at grain boundaries (Fig. 6a) [9].

The 3C-SiC (100) film in Figure 2(a) exhibits a morphology of sporadic hillock clusters bounded by distinct grain boundaries.
A number of rectangular shaped pits are also observed.
The 3C-SiC (111) surface also exhibits a lack of distinguishable grain boundaries or pits.
In addition to the characteristic dark/light spot features, a number of distinct line segments are also visible.
It is noted that a number of dislocation features imaged by ECCI correlate to positions where atomic steps appear to have been pinned.

"Lean carbon" phenomenon could be observed along the grain boundary in the matrix when the welding current was small.
It means that the molten pool solidifies rapidly and the grain is fine.
With the increase of welding current, both content of ferrite and grain size first increases and then decreases.
The distribution of Fe and C is uniform, but the content of Cr in the grain boundary is higher than that in the grain.
A large number of ferrite appears at the bottom of the surfacing layer.

The result shows that the material organization grains of cutting pick produced by the new technique could be refined; the pressing direction of cutting picks’ shape outline forms forging streamlines, the quality is good.
There are three kinds of traditional technologies for pick forming [1-2], one is using the bar cutting directly, and drilling, then brazing carbide alloy, which requires special equipment, and has disadvantages of cumbersome process, time-consuming waste, low material utilization and very high product costs, the process has basically been eliminated by the market; another is the body and carbide alloy forming after imbedding, which has shortcomings of large grain structure, poor mechanical performance and less than the national standard, and has been at a disadvantage in market; the other is drilling after forging and mechanical cutting shape, and then brazing carbide alloy, mechanical properties and material utilization of product has been improved after forging and machining, which is the method used by most of domestic pick manufacturers currently, but poor dimensional accuracy of products with high labor intensity, low forging die life increased production costs.
The material structure is still pearlite and ferrite after warm extraction, although the organization has not changed, but the shape of grain has changed from bulky arborization to isometric after plastic deformation and recrystallization, as shown in Fig.12, the grain got to refinement, the original internal defect (loose, gaps and micro-cracks, etc) have been compacted due to forging, and have eliminated the number of original crack and the tearing tendency of crack, the interior of pick after extruding formed forging flow lines along the direction of extrusion, as shown in Fig.13, the forging flow lines could make material appear aeolotropism, this anisotropy could be more effectively improve the ability of pick body enduring bending moment.
Conclusions Research has been done aimed at warm extrusion precision forming technology of typical pick widely used at present, and the warm extrusion precision forming technology has been proposed for the general axisymmetric pick through numerical simulation and experimental study, the Specific conclusions are as following. 1) For the general axisymmetric pick, the process is simple, the tonnage of forming equipment is small, the life of mold is high, and the quality of forming is good by using the method of warm extrusion forming. 2) The warm extrusion process of relocatable assembling die has been proposed, and the problem of warm extrusion instability has been solved. 3) The grain of material organization got to refinement, the original internal defect have been compacted, and have eliminated the number of original crack and the tearing tendency of crack, the interior of pick after extruding formed forging flow lines along the direction of extrusion, the metal streamline after

In the neutral soil, application of SB and WB increased number of seeds.
In the alkaline soil, number of seeds decreased with increasing of either SB or WB (Fig2).
Asai et al. (2009) reported a decreased grain yield following application of a biochar amendment without N fertilization in a soil that had poor N availability [12].
Effective spikelet and number of seed were the key physiological index to manage the yield.
Acknowledgements This study was supported by Natural Science Foundation of China under a grant number 41101275, Special Fund for Agro-scientific Research in the Public Interest under a number 201203098 and the PhD Start-up Fund of Natural Science Foundation of Liaoning Province under a grant number 20111082.

The Sb2O3 nanoparticles (nano-Sb2O3 particle) have excellent surface activity, large specific surface area, large number of atmos of the nanoparticle surface, and higher bonding strength with polymers[6-9].
The above results are attributed to the large surface energy of Sb2O3 nano-particles, the large number of unpaired atoms, and the possibility of physical and chemical binding with PP [14].
Moreover, the nucleation is conducive to the regular arrangement and crystallization of the PP molecular chain, thereby increasing the crystallinity and refining the grain of PP.
On the other hand, the filling of the nano-Sb2O3 particles increases the crystal growth point, resulting in a decrease in grain size and a role in refining the crystal grains.
The increase of crystallinity and grain refinement eliminate the stress concentration caused by the uneven grain distribution when the composites are subjected to external force, and increase the ability of the composites to resist deformation [16].