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The grains are coarser and the size is obviously larger than the other three types.
The coarse grains will affect the elongation of ZL101A alloy. , Mechanical properties such as tensile strength
Fracture, the number of uneven dimples is small, the source of the crack is formed at the grain boundary, and the fracture mechanism is brittle fracture, which leads to a decrease in mechanical properties.
From Fig. 3(c), it can be seen that there are a large number of dimples distributed on the fracture at a quenching water temperature of 70℃, and the fracture mechanism is a typical ductile fracture
The effect of melt holding time on grain refinement of ZL101A alloy[J].

Introductions In the modern enterprise integration environment, there are a large number of distributed and heterogeneous application systems, the design and technologies on which these applications are based may be different, and its internal information resources are many types and fine grain size, operation of resources tend to have business meaning and the range of operation is quite wide.
In some application domains, require access control must be fine-grained, authorization decisions must support the use of information for specific applications and be capable of coherent and effective implementation of cross-enterprise application licensing strategy.
In the modern application environment rights management field, rights management should support the following requirements:1)Supports a variety of access control policy co-exist;2)Support for fine-grained;3)Support a broad operation;4)Support multi-application sharing.
Each entity contains a number of attributes.Entity contains the classes and instances of the entity.
Conditions are used to restrict the implementation of the operation, the use of constraints can achieve fine-grained operational control,for example,in order to achieve the read operation of a particular type of file,we can use the method of increasing constraints on the Read operation (for example, the limited object is only the doc file type).

The microstructure of HAZ beside SAPH440 is pearlite and grain ferrite, and the microstructure of HAZ beside DP600 is numbly pearlite and plate ferrite.
A few proeutectic ferrites distribute along the pillar grain boundary, acicular ferrite and plate pearlite was in the grains.
The microstructure of HAZ beside SAPH440 is shown in Fig.4 that is asymmetrical pearlites, and the grain ferrites in it.
Tests of formability for TWB Specimens for tensile and cupping tests Table2 Classification and number of specimens NO.
There are a lot of shallow small cavities and a small number of deep big cavities.

The microstructure of the SiAlON-matrix consists of acicular beta' grains, globular alpha' grains and a grain boundary phase.
The SiC particles are located at the grain boundaries and also inside the beta' grains (Fig. 2).
It seems that the smaller SiC particles are preferably incorporated into the growing SiAlON grains during sintering, whereas the bigger ones are left at the grain boundaries.
The more SiC particles are present the more they hinder the grain growth of the beta' grains.
SEM analysis revealed that the SiC particles were present at the grain boundaries and also inside the beta-SiAlON grains.

Introduction With the development of economics, the requirement of human for minerals has increased year by year and a large number of tailings have been produced at the same time.
It is dark grey surrounding the grain, and it is light grey in the central part. "1" and "3" are used separately to mark the two different parts, and the dark region among the grains is marked as "2".
Referring to the XRD patterns, the main phase for these grains marked as "1" is Fe3Si.
As a result, the Fe3Si grains is surrounded by Ti(C0.3,N0.7) and the region among the grains is full of Ca-Mg-Al-Si glass.
And a plenty of debris come from the amorphous phases piles up around the Fe3Si grains.

Many scientific articles consider valuation of grains quality for fungal strike [29,30].
In standard mould threat is expressed by the count of the number of viable spores present in the air, settled dust or surfaces.
The number of dimensions is equal to the number of gas sensors applied.
Fanelli, Detection of fungal contamination of cereal grain samples by an electronic nose, Sens.
Lundstrom, Electronic nose for microbial quality classification of grains, Int.

The number of particles increased with the gradual increase in addition of Sn.
The Mg grains are refined here.
The number of secondary phases is low because most of them are dissolved due to rolling at a higher temperature. 2nd phase particles Refined Mg grains Precipitated Mg2Sn phase 2nd phase particles Fig. 1.
More tin's presence causes grain refinement by inhibiting grain growth through the pinning effect.
Sn contributed to grain refining by inhibiting grain growth.

Hv also increases with increasing numbers of turns and thus with increasing imposed strain.
For a large number of turns the estimated values of Hv are higher than the measured values.
This difference may arise from the disappearance of a certain fraction of dislocations, at grain boundaries.
Furthermore, after heavy deformation, high angle grain boundaries are produced by so called in situ recrystallization and the major strengthening mechanism may not be dislocation hardening but rather grain refinement hardening.
Langdon: Proceeding of Ultrafine Grained Materials III TMS (2004), p. 523

., Riverside, CA 92504, aj.barnes@superformusa.com Keywords: Friction stir processing, aluminum alloys, superplasticity Abstract Since the invention of Friction Stir Welding (FSW) in 1991, an increasing number of successful applications have been found for this unique solid-state welding technique.
The processed zone cools, without solidification, as there is no liquid, forming a defect-free recrystallized, fine grain microstructure.
The starting material was 5 mm thick SP7475 Al processed to a fine grain size by conventional grain refinement.
The grain size in the as-received sheet ranged from 15 to 20µm with the larger grains at the midplane whereas following FSP, the grain size was typically 3-5Em Results Cone tests.
Unfortunately, the FSP system used to fine grain process the starting blanks was not equipped to raster the component in the most efficient manner.

We see that with increasing rolling asymmetry, the grain area is decreasing.
In conclusion we can state that asymmetric rolling produces smaller grains and more fragmented microstructure.
Influence of rolling asymmetry (A=1, A=1.3 and A=1.5) on: a) average grain area (µm2), b) Kernel average misorientation, c) average grain orientation spread.
Influence of rolling asymmetry (A=1, A=1.3 and A=1.5) on grain area (µm2).
Acknowledgements This study was financed by the grants of Polish National Centre for Science (NCN) under decision numbers: DEC-2011/01/B/ST8/07394 and DEC-2011/01/D/ST8/07399.