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Thirdly, tool manufacturing is a factor crucial to microforming processes as it affects the accuracy in shape and movement or control of the forming tools.
Their mechanical properties are listed in Table 1, αh is an inhomogeneity coefficient following statistical distribution shown in Fig. 1 (b).
Mechanical properties of aluminum and tool steel in FEM simulation Materials Density (Mg/m3) Young’s modulus (GPa) Poisson ratio Yield strength (MPa) Tangent modulus(MPa) Al 2.710 69 0.33 138 202×αh Tool Steel 7.8 207 0.292 / / The cylindrical workpiece was less than 2 mm in diameter and the grain size ranged from 25 to 100 μm.
The geometrical parameters a and b are of significance in the CWR process and may determine the final properties of the products.
The initial surface morphologies of workpiece and tool influence friction and deformation, which may affect the final surface topology of micro product to a great extent.

Note: The numerical results are not directly transferrable to “real world” properties, because the inherent limitations of the atomistic method necessitate the use of unnaturally high strain rates (i.e. comparable to 1010 s-1 applied in prior studies [8]).
Nucleation of stacking faults, and dislocation interactions are also largely affected by localized defects or irregular GB structures [8, 11].
The visual results demonstrate that dislocation nucleation occurred on multiple slip systems that cannot correspond with the maximum Schmid factors, because only two maximum Schmid factor slip systems existed in this case.
Overall, this article concludes that the plastic deformation response in FCC metal polycrystals is influenced quite significantly by the presence of GBs, not as immobile barriers to slip, but as a consequence of complex elastic interactions affecting the slip systems of dislocations.
Suresh, Mechanical behavior of nanocrystalline metals and alloys.

Laser welding double-sided tensile properties test shows the tensile strength at room temperature is 555 Mpa and 400 Mpa under 1000°C.
As it can be seen from the graph, welding speed in the technology factors has an important impact on crack sensitivity.
In weld microstructure the proportion of columnar crystal and equiaxial crystal decides to mechanical properties of welding.
In the experimental research, the mean of double-sided welding realizes the MX246A alloy welding, and performance of welding joint is more than 75% of the base material properties in the conditions of no other heat treatment.
When molten pool freezes, imbalance solidification causes the uneven distribution and high concentration of Mo at high temperature is oxidized, which produces adverse impact. 3) Laser welding double-sided tensile properties test shows that the tensile strength at room temperature is 555 Mpa, and is 400 Mpa under 1000°C.

These materials generally possess many unique properties such as high tensile strength, and fairly large plasticity at low temperature.
Regarding the fatigue on ECAPed UFG materials, most studies [1-4] have concentrated on cyclic deformation, S-N properties, formation mechanism of shear bands and underlying microstructural mechanisms.
The mechanical properties for CG and UFG samples were 232 and 438 MPa tensile strength, 65 and 13.5 % elongation, and Vickers hardness of 63 and 131 (load: 2.9 N), respectively.
The round-bar fatigue specimens (5 mm diameter) were electrolytically polished prior to mechanical testing to remove any preparation-affected surface layer.
the relationship between the reversible plastic zone (RPZ) size at the crack tip and microstructural factors for analyzing the growth mechanism of small cracks.

Impact rupture surface of the composites was observed by scanning electron microscope(SEM), and its load deformation temperature(HDT) and mechanical properties were tested.
Properties Testing and Morphology Observation: HDT was tested according to ISO75-2:2003(A) on RV-300 thermal deformation Vicat softing point temperature tester.
The improvement of the mechanical properties can be related to the improved compatibility confirmed by SEM experiments.
When BPO was used as initiator, the mechanical properties of WPC can not be improved effectively because BPO was decomposed in advance
Although the mechanical properties were both remarkable improved whether WPC was extruded at 180˚C or at 200˚C, the optimal dosage of MAH was different when extrusion temperature changed.

Farzalipour Tabriz3,d 1 Department of Material Science and Engineering, Faculty of Mechanical Engineering, K.
ZnO nanoparticles because of their interesting properties and various morphologies, has become one of the most attractive nanomaterials for research objectives.
Its significant properties has made it applicable in UV-Light emitters, varistors, transparent high power electronics, gas sensors, etc., [1].
Introduction ZnO, because of its interesting properties and various morphologies, has become one of the most attractive nanomaterials for research objectives.
Its significant properties has made it applicable in UV-light emitters, varistors, transparent high power electronics, surface acoustic wave devices, piezo-electric transducers, gas sensors, etc. [1].

Vehicle mechanical properties and speeds are randomly sampled within a Monte Carlo simulation.
The structure's properties are listed in Table 1.
Table 2 lists the range of vehicle properties used in the simulation that can be found in the literature [6], and were sampled using a uniform random distribution.
Fig. 6 shows the probability distributions for each of the vehicle's natural frequencies as a result of the random selection of the properties in Table 2.
The approach has been numerically checked for various road profiles, damage and vehicle properties.

Drag, which typically takes the form of pressure head losses within a pipe, is one of the factors that contributes to the decrease in flow rate.
Brandfellner et al. showed that with 100 ppm of PAM can reduce the drag by up to 80% and the performance of the DRA affected by other factor including molecular weight distribution of the additives [5].
On the other hand, biopolymers, such as guar gum and xanthan gum, have been studied widely for their DR properties and mechanical stability under turbulent flow conditions.
Finally, the recorded viscosity reading was analyzed to determine the fluid’s properties.
Thus, it can be concluded that the HL solutions exhibit Newtonian behavior as the introduction of natural polymer did not affect the apparent rheological properties of the liquid [10].

Introduction Practically on every object in our surroundings is affected by number of negative factors, which are for example impacts of snow, wind or freeze.
In the past was wetness in masonry manually decreased by mechanical methods.
For testing of properties of injection gels were chosen following laboratory exams.
Addition of injection gels improved all of tested properties in all tested materials.
[4] ČSN 73 1357: Determination of capillary properties of aerated concrete

High Performance Concrete with High volume Fly Ash Jian-Hua Wu 1, a, Xing-Cheng Pu, Fang Liu, Chong Wang 1 College of Material Science and Engineering, Chongqing University China awujianh@263.net Keywords: Concrete using of large dosage fly ash; High Properties Concrete; Pozzolanic activity; active factor; carbonate Abstract.
and Mechanical Properties of Cement Flexural strength (Mpa) Compress strength (Mpa) Density g/cm 3 Specific surface cm 3/g Fineness (0.08mm Sieve) Sieve residue /% 3day 7day 28day 3day 7day 28day Cement 3.18 3500 1.9 5.90 8.40 8.94 33.1 46.2 56.4 Coarse and fine aggregate: Fine aggregate comes from Jianyang, Sichuan Province with fineness modulus of 2.18 and density 2.78 g/cm3 Coarse aggregate: Crushed limestone from Geleshan, Chongqing is used with the grading of 5~10 mm and 10~20 mm, 30 % and 70 % respectively.
The strength is a main factor for concrete to resist all kinds of destroying force.
But for fly ash concrete, the increasing of compressive strength is the result of combination of all kinds of factors; it accelerates the increasing of strength of the fly ash concrete.
[7] L.Pliskin: High Performance Concretes Engineering Properties and Code Aspects, High Performance Concrete-from Material to Structure, 1992, E&FN SPON 186.