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The Halder-Wagner approach was adopted to determine the powder’s average grain size, internal strain, lattice parameters and the mixing factors.
Nanostructured materials adopt outstanding properties due to the surface and dimension effects.
Some electromagnetic properties can be tailored when the grain size is reduced to the Nanoscale [6, 7].
Fig. 2d displays the mixing factors evolution according to milling duration for the same peaks of the XRD spectra.
Accordingly, the obtained mixing factors are Gaussian profiles (variation around 0.94) which gives evidence to the domination of the residual microdeformations in the developed structural properties of the mechanically milled Fe powders and all the underlined observations confirm the effectiveness of mechanical milling for nanostruturing metallic powders [12, 13].

In particular, aluminium alloys are an interesting alternative to the conventional stainless steel, since they can combine low density and good mechanical properties at the same time.
Further, if these alloy are maintained at higher temperature also for short periods of time, precipitation of secondary phases (Mg2Si particles at grain boundary) occurs leading to improved mechanical properties (aging phenomenon); an excessive exposition to these level of temperature has the opposite effect since precipitates coalesce into larger particles, causing a reduction of the alloy properties (overaging) [8-9].
Tensile tests were aimed at determining the influence of the strain rate and the heating time on the mechanical properties of the alloy.
The attention was thus focused on the factors BHF and cycle time (the pressure profile was unchanged).
Sci. & Engineering A 580 (2013) 202–208 [9] Mohammad Reza Rezaei, Mohammad Reza Toroghinejad, Fakhreddin Ashrafizadeh, Effects of ARB and ageing processes on mechanical properties and microstructure of 6061 aluminum alloy, J. of Mater.

In this paper, the interfacial compatibility of the bamboo fiber/thermoplastic and affected factors were briefly analyzed, and improving methods of the interfacial compatibility were introduced.
Material Properties Bamboo Fiber Properties.
Thermoplastic Properties.
Through border and pressure method, the mechanical properties of bamboo fiber will relatively decrease, but the composites’ will be improved [9].
Maximizing all physical and chemical methods based on mastering bamboo fiber properties to modify, thus improving the mechanical properties of bamboo fiber and the compatibility of the composite interface.

Using the mechanical equivalent of heat (M ), the rate of specific volumetric flux is: (2) Of course, all mechanical and thermal material properties can be temperature dependent.
The applied mechanical loads are depicted in Figure 3.
Fig. 3 Mechanical Boundary Conditions Fig. 4 Contour Plot of the Gasket Pressure applied to the Cylinder Head Joint at the end of the Third Load case Material Properties The definition of the membrane properties and the thermal expansion coefficient of the gasket is separated from the definition of the properties in the thickness direction and the transverse shear behavior. the membrane stiffness of the body of gasket is 120 MPa and its thermal expansion coefficient is 5×10-5per ºC, while for the ring the membrane modulus is 100 MPa and the thermal expansion coefficient is 1×10-4per ºC.
Therefore, two isotropic materials are created with the membrane properties and thermal expansion coefficient of the two gasket regions.
The stress level is not be neglected in the thermal load on cylinder head, cylinder liner, are the main factors that cause the structure fatigue, affect the service life of the cylinder head.

The dynamic mechanical properties and damping behavior of a laminated sandwich composite beam inserted with a viscoelastic layer is investigated.
The size of tested samples was shown in TABLE 2; Material properties are shown in Tables 3. 2.2 Dynamic mechanical analysis Dynamic mechanical analysis (DMA) was performed on a TA Instruments Q800 Dynamic mechanical analyzer.
Results and Discussion 3.1 Influencing factors for loss factor Most of viscoelastic materials exhibit three different mechanical states, glassy state, viscous state and elastomeric state with different temperatures.
Typical temperature spectrum of dynamic mechanical properties of viscoelastic material Fig. 3.
l The dynamic mechanical properties of the polyurea viscoelastic material showed this new kind of damping material has good damping properties in a broad range of damping temperature range and the loss factor is much more than traditional epoxy or polyurethanes.

Prediction of Microstructure and Mechanical Properties in Hot Stamping Chao Wang, Bin Zhu, Yilin Wang1,* and Yisheng Zhang 2,* State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China * Corresponding author : 1Yilinwang@mail.hust.edu.cn, 2zhangys@mail.hust.edu.cn Keywords: hot stamping; mechanical properties; hardness; microstructure Abstract.
The significance of these differences is discussed later in section V, part D.S(X) in this model is expressed in the form of S(X)= 0XdXX0.41-X(1-X)0.4X (2) The influence of Boron Boron element content has a great influence on the mechanical properties. 10 to 30 PPM of boron addition in the high strength steel can affect the austenite grain boundary ferrite heterogeneous nucleation and increase the intensity of supercooled austenite.
For the ferrite reaction, the F in equation (1) is modified to FfComp=exp⁡(1.0+6.31CC+1.78CMn+0.31CSi+1.12CNi+2.7CCr+4.06CMo+kfCB) (3) For the pearlite reaction, the F in equation (1) is modified to FpComp=exp-4.25+4.12CC+4.36CMn+0.44CSi+1.71CNi+3.33CCr+5.19CMo+kpCB (4) For the specified steel grade, the values for the factors Kf and Kp can be obtained by experiments.

The microstructures were analyzed by scanning electron microscopy and mechanical properties measured by tensile test.
Mechanical properties of TRIP steels are very interesting for industrial application, they possess relatively high strengths around 800-1000 MPa combined with total elongations around 30 % [3].
Mechanical properties were measured using tensile tests of flat mini-samples, with a gauge length of 5 mm.
The effect of the hold temperature on the final microstructure and the mechanical properties was investigated.
It was demonstrated that little changes in a single processing parameter of chosen thermo-mechanical processing method can produce wide spectrum of mechanical properties.

ayiyaoyong@hotmail.com, bjacques_lieb@163.com, cyupeng8@gmail.com, d370619370@qq.com, e187248872@qq.com Keywords: A-TIG, Oxide-based, High-efficiency welding, Microstructure, Mechanical properties.
Furthermore, compared with traditional TIG welding, the microstructure of A-TIG weld was finer, directivity of dendritic crystals near weld bond line was weaker, and mechanical properties of weld joints was also superior.
The aim of this research was to investigate the effect of A-TIG welding technology on the formation, microstructure and mechanical properties of stainless steel welds, expecting to promote the industrial application of this technology in china.
The microstructure and mechanical properties of weld joints were studied as well.
Meanwhile, the directivity of the dendritic crystals near the A-TIG weld bond line was weaker, which means that A-TIG welding weakens the inhomogeneity of chemical composition in the fusion area, this can reduce the weld defects and improve the mechanical properties of weld joints.

With the development of Micro-electro-mechanical systems (MEMS) and Nano-electro-mechanical systems (NEMS), dimension of their parts is required to nanometer scale, and the characteristics of machined-surface of nano-scale parts affect strongly its application.
In the past decades, much attention is paid on mechanical properties, nanomachining process and surface generation mechanism of nanostructured materials by using atomistic simulation.
As a matter of fact, surface relaxation after machining changes hardness, roughness and surface structure of nano-scale parts, which are important influencing factors on its performance.
To predict the properties of nano components, an integrated MD is used to simulate nanometric cutting and surface relaxation in this paper.
Micro-hardness is one of the important factors for evaluation of work-hardening and is an important parameter which reflects the physical and mechanical properties of the surface.

As the relation between mechanical property and process parameters is difficult to establish, attempt has been made to derive the empirical model between the processing parameters and mechanical properties using statistical methods [1].
Operator gets the part with comparable or higher mechanical properties.
Slota, Optimization of FDM Prototypes Mechanical Properties with Path Generation Strategy, Applied Mechanics and Materials, 474 (2014), 273-278
Janecki, S.Adamczak, Investigating the influence of selected factors on results of V-block cylindricity measurements, Measurement, 44/4 (2011), 767-777 [5] V.
Shapoval, The study of mechanical properties of suture anchor using a modified polymer component, In: Bulletin of National University " Lviv Polytechnic ".