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Sample in different temperatures with annealing processing, annealing time is 60min, Observe the change of the alloy microstructure and properties .
Therefore, to improve the uniformity of the magnesium alloy composition and its mechanical properties, the magnesium alloy sheet need annealing treatment.
Annealing treatment can ensure magnesium alloy get enough deformation ability and has the important influence for mechanical properties and organization structure, and annealing temperature is an important factor in the effect of annealing [13].
[9]JANECEK M,POPOV M,KRIEGER M G,HELLMINGAND R J,ESTRIN Y.Mechanical properties and microstructure of a Mg alloy AZ31 prepared by equal-channel angular pressing[J].
The structure and properties of non-ferrous alloys [M].

Relative researches made great advances[7-9], but most researches have been focused on the interface, microstructure and mechanical properties of C/C composites, and few effort has been made to research the whole orientation of C/C composites.
After the unidirectional C/C composite was finished preparing through hot pressure molding process, the influence factors including pressure and testing direction were investigated.
The microstructure parameters of unidirectional C/C composites were analyzed by XRD in order to discuss the orientation and influence factors of unidirectional composites. 1.
Lower pressure would produce carbon foams, affect the combination of carbon fiber and matrix even couldn't form a bulk, or reduce the density of material, and it influences other properties.
Therefore, if other properties not only the orientation were investigated, more comprehensive factors shoule be considered.

Introduction Composite materials’ application in engineering has been ever expanding owing to their unique mechanical properties.
While this kind of composites boasts of excellent general mechanical properties in ordinary environment, their mechanical behaviors may deteriorate rapidly in corrosive environment.
With the consideration of these factors, one organic polymer (PET) thin film deposited by pure aluminum thin films on both surfaces is adopted here to improve the fabricated composite’s anti-corrosion properties as well as to decrease the permeability of gas molecules.
Test shows that, when optimized thermo-mechanical processing techniques are adopted, the fabricated composite can combine the favorable properties of polyester fabric and aluminum thin film to achieve the desirable mechanical properties even after being exposed to very corrosive environment of ozone gas.
Wilson: The corrosion products and mechanical properties of certain light aluminum alloys as affected by atmospheric exposure, Proceedings of the Physical Society of London, Vol.30 (1926) 15-25

In general, stainless steel contains nickel content is high enough to produce corrosion resistance and desired mechanical properties.
They show how to obtain optimal mechanical properties of 17-4 PH stainless steel.
But there is another factor that can affect the shrinkage in some parts of the sample, homogenization of powder during the injection process can affect this.
Baryun, “Rheological, Mechanical, and Corrosive Properties of Injection Molded 17-4 PH Stainless Steel,” Transacstions of Nonferrous Metal Society of China, vol. 14, pp. 934–939, 2004
Rasmussen, “Effects of Holding Pressure and Process Temperatures on the Mechanical Properties of Moulded Metallic Parts,” in Annual Technical Conference (ANTEC 2013, 2013, vol. 1, pp. 483–487

The ridge is the watershed of groundwater recharge area, which accepts atmospheric precipitation infiltration recharge in the rainy season, and along the pore of slope, the water is excreted to the lower reaches of low-lying. 2.5 Rock and soil engineering mechanics type and main physical and mechanical indexes The rock and soil physical and mechanical properties are shown in Table.1.
Engineering site earthquake hazard is mainly affected by peripheral earthquake affected.
Rainfall is the main inducing factors to the occurrence of landslide.
The formation and development of landslide is the result of superposition of all kinds of natural factors.
Conclusions The principle of prevention is to decrease the force, improve the sliding resistance of landslide and eliminate or reduce the landslide inducing factors.

However, the interface joint of double-face locked toolholder-spindle system is affected by many factors (broach force, toolholder structure, geometric tolerance, roughness).
Since we care about the overall properties of BTF toolholder-spindle assembly, rather than the respective properties of each connect surface, and the taper joint is the main load bearing and location joint of BTF toolholder-spindle, we can take the multiple connect surfaces as a whole joint, and simplify the taper sleeve and body as one, not affecting the overall properties of the BTF toolholder-spindle assembly, as shown in Fig. 2(b).
l Material——Define the material properties of the BTF toolholder and spindle.
Fig. 3 BTF Toolholder main menu GUI for Defining the Material Properties.
The broach force, as one of the major factors affecting the contact properties of BTF toolholder-spindle, is the main load of the model, which acts on the thread hole of BTF toolholder end.

As a representative of mechanical properties, the hardness was also measured.
The surface of spherical roller “D” (tested for 20 hours) was also affected by contact fatigue; the depth and frequency of pitting were slightly higher in comparison with the outer ring.
The predisposition to this type of failure is determined by Bruscate´s X-factor and Watanabe´s J-Factor [1].
The calculated value of J-factor (304) almost three-times exceeds the recommended value (120).
The chemical composition of the outer ring and spherical roller “C” is affected by undesirable presence of Sn and Sb, which cause lower plasticity of the component parts.

For most of these applications, the ceramic materials need to fulfill specific requirements regarding their microstructure, porosity, permeability and mechanical properties [13-14].
To tailor the properties for each application it is necessary to control the factors affecting the sintering process such as the initial particle characteristics, the microstructure, the additives and the processing technique [15].
Kitouni, Effect of TiO2 additions on densification and mechanical properties of new mulltifunction resistant porcelains using economic raw materials, Ceram.
Mohajerani, Characterisation of fired-clay bricks incorporating biosolids and the effect of heating rate on properties of bricks, Const.
Gencel, Effect of olive mill waste addition on the properties of porous fired clay bricks using Taguchi method, J.

According to the purpose of this paper, the first method is used to study the dynamic properties of original coarse materials by dynamic triaxial test.
Therefore, the paper studied the size effect of dynamic properties of coarse materials based on the PFC.
Effects of material properties on granular flow in soil using DEM simulation[J].
Research on contact surface properties of dam material by PFC2D[J].
Dynamic properties of sandy and gravelly soils:[D].

In fact, their low density and excellent oxidation resistance and high temperature mechanical properties give them a good potentiality for such demanding applications.
Because of the strong texture that is developed during cast and wrought processing, mechanical properties were affected by their anisotropy and reliability, thus making difficult to ensure the minimum property requirements that are expected from end-users.
Tensile, creep and fatigue tests were performed using a variety of microstructures to achieve an optimum balance of properties.
The effect of relevant structural factors, such as powder particle size, chemistry, heat treatment conditions was quantitatively analyzed for different powder heats.
Although deformation and fracture mechanisms have already been widely investigated [1-6], there is still a lack of investigations of structural defects such as porosity and inclusions that may considerably affect the mechanical behaviour.