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MATERIALS AND EXPERIMENTAL PROCEDURE 2.1 Materials and tensile properties In the present study, DP600 steel with a thickness of 0.9, 1.3, 1.6 and 1.8 mm and a width of 25, 50, 75 and 100 mm was used.
The chemical composition and initial mechanical properties of the DP600 steel are shown in Table 1 and Table 2 respectively.
Therefore in this study, the initial mechanical properties of the material were determined by performing the tensile tests on Shimadzu Autograph 100kN testing machine with the data acquisition maintained by a digital interface board utilizing a specialized computer program. 5, 25, 125, and 500 mm/min deformation speeds were performed.
Table 1: Chemical composition of DP600 steel (wt. %) Material C Mn P S Si Al DP600 0,092 1,912 0,014 0,003 0,147 0,031 Table 2: Mechanical properties of DP600 at various deformation speeds Mechanical properties Deformation speed(mm/min) 5 25 125 500 Yield strength(YS) (MPa) 377.09 397.098 401.90 417 Ultimate tensile strength (UTS) (MPa) 777.22 777.74 780.96 784.48 Uniform elongation (UE) (%) (mm/mm) 20.66 19.56 20.26 18.37 Total elongation (TE) (%) (mm/mm) 22.4 21.6 22 19 Strain hardening coefficient (n) 0,206 0,203 0,201 0,174 Strength coefficient (K) (MPa) 1102 1109 1101 1072 As shown in the figure the flow stresses and total elongations of the material were not changed significantly with increasing deformation speed except for 500mm/min deformation speed.
However the deformation speed did not affect the bending forces significantly.

The finishing procedures (Unglazed, self-glazing, mechanical polishing, mechanical polishing + glazing, and glazing) were tested using an in vitro assay.
The surface roughness has been thought to be a very important factor in determining the amount of plaque accumulation [4].
In the dry weight of plaque, there were significant differences between unglazed and mechanical polished, glazed and mechanical polished (p=0.000), mechanical polished + glazed and mechanical polished (p=0.003), self-glazed and mechanical polished (p=0.009), self-glazed and glazed (p=0.005), mechanical polished + glazed and glazed groups (p=0.015).
Properties of the hard surface as well as the adhesive properties of the bacteria influence these mechanisms.
Conclusion The surface roughness significantly affects plaque accumulation.

The structural properties were studied using X-ray diffraction.
The optical properties were studied using a UV-VIS spectrometer.
Introduction In general, the study of the properties of Al2O3 nanocoating is the focus of researchers' interest because of its unique properties that make it widely used.
Gilmore., Effect of film thickness on the properties of indium tin oxide thin films, J.
Kariper, Hardness of Thin Films and the Influential Factors, Diam.

Tensile properties were evaluated with universal testing machine (Hounsfield, H1000KS).
Mechanical properties of PLA resins (NatureWorks) Grade PDI*** Tensile strength (MPa) Elongation at break (%) Young’s modulus (GPa) PLA 6201D 1.5 61.1 ± 5.2 2.10±0.10 3.65±0.09 PLA 4032D 1.6 64.1 ± 2.3 2.23±0.00 3.38±0.21 ***PDI means polydispersity index.
Tensile properties were measured with film specimens.
Mechanical Properties of PLA Blend In Fig. 4, tensile strength of PLA 4032D/PBAT blends decreased with increase of PBAT content.
This means the additive content is a kind of important factor to affect and control the bio-degradability of green geosnthetics.

They concentrated on the factors related with the formation of pores, such as processing parameters and their combinations.
Compared to dense metal, porous metals have high functional and structural performance with the characteristic of low density, high surface ratio, less weight and good properties of damping.
They are widely used in fields of aviation, spacing, unclear energy, medical, environmental protection, metallurgy, mechanic, architecture etc, due to their excellent physical and mechanical properties.
That will both widen the application fields of porous metals and make their attractive properties to be fully used of [16].
The heat conductive coefficient is affected by several factors and can not be determined exactly.

Introduction In cold regions, freeze-thaw attack is one of the main factors which cause mechanical properties damage to concrete structure[1-4].
Table 2 Relationships between concrete compressive strength in MPa (C) and ultrasonic pulse velocity in km/s (V) Series Equation R2 E-0.47 C=0.0007*9.66V 0.94 E-0.59 C=0.057*3.72V 0.91 E-0.67 C=0.45*2.28V 0.92 E-0.47A C=0.002*7.98V 0.93 Results As discussed previously, a specimen’s compressive strength loss after freeze-thaw cycles becomes the main factor to determine whether the specimen fractures.
High-performance Concrete Durability Affected by Many Factors[J].

Asachi”, Faculty of Mechanical Engineering, Street Prof. dr. doc.
The addition of alloying elements such as Ta, Nb and Zr represents a good solution for lowering modulus of elasticity, which is an important factor for reducing bone resorption and therefore for preventing implant failure.
Metallic biomaterials are still required for orthopedic applications, due to their excellent mechanical properties, good corrosion resistance and biocompatibility.
A lower hardness can accelerate the wear process, reason for which it is recommended to use a surface modification method in order to improve the tribological properties of the alloy [1].
Niinomi, Mechanical biocompatibilities of titanium alloys for biomedical applications, Journal of the Mechanical Behavior of Biomedical Materials, I (2008) 30-42

Research on the Application of Expansion Ratio Analysis for Die-Face Optimal Design in Sheet Metal Forming Lei Chena 1 Institute of Mechanical & Electrical Engineering Design, Jiangxi Blue Sky University, Nanchang, 330098, China a ujs_cl@163.com Keywords: Sheet Metal Forming; Finite Element Method; Die-Face Design Abstract.
Some researchers have developed models to analyze the influence of different factors using both experiments and FEM in the deep drawing process [1-4].
The relevant mechanical properties are listed in Table 2.
The friction coefficient is not affected when the blank ironing begin.

SSOS showed a good film-forming property when its concentration was 3%.
Research on properties and applications of SSOS has aroused increasingly more attention [1,2].
The mechanism is that when surface tension of the paper was less than external mechanical forces, some stuff like fiber fines, fragment, filler particles, sizing agent, and pigment particle were fell off the edge of paper under the action of mechanical force.
When the concentration is more than 5% starch solution had poor liquidity, which cannot form an integrated layer, and its barrier property and water resistance decreased.
The result indicated that the solid content and the DS of SSOS were two important factors that affect paper surface sizing performance of SSOS.

Bainite in microalloyed steel possesses excellent synthetic mechanical properties.
Introduction The excellent synthetic mechanical properties of ultra low carbon bainite (ULCB) steel are derived from fine non-equilibrium microstructure [1-3].
The involved pre-deformation will change dislocation density and dislocation-precipitate interaction state, which could affect microstructure evolution during subsequent thermal disturbance.
After heated isothermally at 1200°C for 3 hours, the ingots were subjected to thermal mechanical controlled process.
After mechanical polishing, the samples for optical observation were etched with a 3% nital.