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The microstructure, texture and mechanical properties of the extruded alloy were investigated.
And so the mechanical properties and heat resistance of Mg alloys could be greatly improved by the dispersed precipitates due to aging treatment.
The influences of microstructure and texture on the mechanical properties of the extruded alloy sheets were investigated.
The crystallographic texture is the most reasonable factor for the mechanical anisotropy.
Wang, Structure and mechanical properties of extruded Mg-Gd based alloy sheet, Mater.

The big amount of mutually related factors that are supposed to influence the properties and consequently the application potential of the thermally sprayed coatings makes the choice of material for individual application rather confusing.
Mechanical properties.
Mechanical properties.
The measured mechanical properties are summarized in the Table 1.
Tribological properties.

Keywords: Silicon nitride ceramic ball, Material properties, Correlation coefficients.
For the Si3N4 ball, the material properties can be described by the following factors: density, hardness, apparent porosity, crushing load and fracture toughness.
The density of ceramic material, is relevant to its mechanical properties and thermal stability.
When correlation coefficient is equal to 1, it means that the two factors have a close relevance, while correlation coefficient 0 suggests the two factors have no relationship with each other.
The reason may be that apparent porosity has an influence on the structural strength, which affects the bearing capacity of ceramic balls. 4 Conclusions The inherent correlation among materials properties are obtained as follows: (1) With the increasing of the apparent porosity, its density will decrease correspondingly

It is more conveniently and less affected by topography.
FLAC3D can simulate the creep properties of the material which is related to the time.
Due to poor mechanical properties of rock, large rock deformations occur easily.
In summary, through the above modeling requirements, a three-dimensional tunnel model (Fig.2) is established, containing 37,335 units and 40,384 nodes. 3.3 Calculation parameters selected Rock relaxation and destruction after tunnel excavation is a dynamic process, affecting by many factors and complex mechanism of action.
Considering structural surface, interlayer and other uncertainties inside the rock, its mechanical properties are very different from experimental rock mechanical parameters.

The Midwest cities large engineering construction have mushroomed, these engineering investment big, affecting wide, in its construction or after completion of the construction process, form many large scale ,project more, factors complex, geological environment variable, saftey and use requirement different loess slope engineering.
The Influence Factors for Slope Failures in Loess Area Internal affecting factors Geologic structure.
Exterior factors Climatic factor.
Under the action of loess slope gravity stress, with the pressure action of the overlying soil the microstructure change of loess will cause the major change of loess’ physical and mechanical properties, so changes the soil structure.
The safety factors caculated by various of limit equilibrium method show in table 1, the maximum is 0.843 for the safety factors.

Influence of the pre-hydrated cement suspensions on hardening cement paste properties is determined.
Duration of hydration was the variation factors of mixtures.
Influence on physical-mechanical properties was evaluated on cube specimens by size 20x20x20 mm obtained from normal consistency cement paste.
Physical properties was determined by a caliper and laboratory scales.
The mechanical properties research has shown compression strength increase for all specimens in different age (Fig. 3.).

Abstract: Based on the generalization and analysis of laboratory experimental results on mix ratio, the effects of various factors such as cement content, water-cement ratio, curing time, curing conditions and types of cement on the mechanical properties of unconfined compressive strength of cement soil are presented.
The author carried laboratory experiments of mix ratio tests of cement soil for the influential factors.
The strength of the soil is determined by unconfined compressive strength, comparing of various factors on the strength of cement soil.
As shown in Fig. 4, our results present the same properties, and a linear change can be seen.
The largest strength of cement soil was reached by P.O52.5 cement, while the curing strengths of expansive cement were all small, and the other two kinds of mechanical properties of cement-soil were quite similar.

Base metal, welded joint and HAZ (heat affected zone) materials were used to make different test specimens.
It means that welding process may lead to a great reduction in the fatigue property for titanium alloy and the effect of crack orientation on fatigue property is not negligible for titanium alloy.
Study the effect of some factors on da/dN and ΔKth of Titanium alloy are very important in engineering applications.
The chemical composition is given in table 1 and the mechanical properties in Table 2.
Table 1 Chemical Composition of Test Materials Ti Al B Fe Si C N H O Plate Rolled ring 95.57 95.64 4.0 3.975 0.005 0.005 0.23 0.215 0.05 <0.005 0.025 0.016 0.024 0.023 0.005 0.084 0.073 Table 2 Mechanical Properties of Test Materials σb [MPa] σ0.2 [MPa] δ% E [MPa] ν aKV [J/cm 2 ] Plate 682 605 18.5 1.106×105 0.34 74.9 Rolled ring 712 615 16.3 1.310×105 71.4 Table 3 Test Results of ΔKth Orientation Specimen No.

The results show that the factors affecting the adsorption capacities of pitch-based activated carbon, in order of importance, are carbonization temperature, oxygen-blowing time, carbonization time and additives.
Four factors affecting preparation of high absorption capacity activated carbon precursor are examined by orthogonal tests, which are, in order of importance, carbonization time, oxygen-blowing time, additives and carbonization temperature.
Tsyntsarski, et al, Effect of activated carbons derived from different precursors on the hydrogen sorption properties of magnesium, Fuel Processing Technology 92 (2011) 1963–1969
Cazorla-Amoro´s, et al, Adsorption properties of carbon molecular sieves prepared from an activated carbon by pitch pyrolysis, Carbon 43 (2005) 1643–1651
Petrov, et al, Effect of different oxidation treatments on the chemical structure and properties of commercial coal tar pitch, Carbon 43 (2005) 261–267

Microstructure Evolution and Mechanical Properties of Rheocast A319 Aluminum Alloy Using Cooling Slope M.S.
A319 aluminum alloy are increasingly used in the manufacture of engine parts due to a combination of good fluidity properties and mechanical strength [4].
This means, the hardness values increased by more than 4% in rheocasting process, hence improve the mechanical properties of the alloys.
Microporosity in solidified ingots will reduce the mechanical properties of the alloy.
The hardness of rheocast sample has attained 85.3 HV from 81.8 HV in as-cast sample; hence improve the mechanical properties of A319 aluminum alloys.