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The purpose of this study is to evaluate the physical-mechanical properties of the Tungsten Arc Welding (GTAW) process through numerical simulations of different welded joints between the 5083 and 6061-T6 aluminum alloys.
The results of the chemical composition test of the weld metal obtained that the composition is close to Al 5083 base metal so that the mechanical properties of the weld metal tend to be identical with Al 5083 alloy.
Defects in aluminum products reduce the mechanical properties of the alloys, but on the other hand, aluminum alloys can be increased in strength through heat treatment processes such as T4 and T6.
The current welding GTAW process is one of the determining factors to get the quality of welding results that meet the requirements [10-12].
The purpose of this study was to analyze the physical-mechanical properties based on the composition of alloy by GTAW welding process with different base metals through a numerical simulation.

Effect of Mica Content on the Physical, Mechanical and Morphological Properties of Alumina-Cullet-Mica Ceramic N.A.
It is observed from the physical, mechanical and morphological analyses that the properties of ACMCs are highly dependable on the mica content.
Thus, the main objective of this study is to determine the exact composition of the system which could exhibit the best mechanical properties of ACMC.
This test plays an important role in determining the porosity, grain size and grain contacting area which is also known as the key factors affecting the strength of ceramic body.
The compressive strength test was conducted in order to evaluate the mechanical properties of ACMC samples.

The properties of piezoelectric materials due to the effect of electrical, mechanical, thermal, radiation, and chemical parameters are systematized.
Until now, the problem of creating a unified model based on a systematic approach that takes into account the influence of heterogeneous factors leading to a change in the properties of piezoelectrics is urgent.
Systematization of the Properties of Piezoelectric Materials The systematization of the properties of piezoelectric materials is carried out according to the principle of assigning parameters to the following enlarged groups depending on the nature of physical quantities: group of electrical parameters (electric field strength, E; spontaneous polarization, P; frequency, f); group of mechanical parameters (deformation, x; mechanical stress, X); group of thermal parameters includes the temperature T, as well as the temperature of the phase transition TC; group of radiation parameters: X-ray dose, R; group of chemical parameters (percentage y of the component affecting piezoelectric properties; measure of sample defectiveness, z).
They are due to the influence on the measurement results of changing uninformative parameters (for a specific experiment) and external factors.
Conclusion Electrical, mechanical, thermal, radiation, chemical parameters affecting the properties of piezoelectric materials, causing their use in products of nano- and microsystem technology, are systematized.

Mechanical Properties of Reinforcing Bar HRB335 after Corrosion Ying Wang1, Ping Li1, a 1Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China aeappol@163.com Key Words: Reinforcing bar, Corrosion rate, Corrosion morphology, Mechanical properties Abstract: The corrosion behavior of reinforcing bar HRB335 in 3.5 wt.% NaCl solution was investigated, and the tensile mechanical properties after corrosion were tested.
The research about the corrosion of reinforcing bar and its effect on the mechanical properties of reinforcing bar are increasing [6-8].
The tensile mechanical properties, including yield strength, tensile strength and elongation, are tested by a hydraulic pressure universal testing machine.
For long samples, corrosion rate calculation and mechanical properties tests are made after they are immersed in thin hydrochloric acid to remove the scale on the surface.
These will affect the strength properties of reinforcing bar.

The purpose of the investigation carried out is the study of regularities in structural-phase changes and mechanical-chemical processes occurred in a surface layer under the influence of outer and inner technological factors.
At the activation molecules and atoms gain additional energy contributing to the negotiation of a potential barrier affecting a rate of chemical reactions.
The essence of the activation process at vibration mechanical-chemical processing (VMCP) consists in the application catalytic properties to a metal surface with respect to the reaction of zinc ions reduction.
It is seen from the equation (1) that the activity of ions can affect considerably the value of equilibrium potential.
Zinc coating applied upon metal surfaces under the influence of free-moving indenters possesses increased corrosion properties in comparison with coating obtained by a common technology at the expense of the absence of a hydrogenated layer. 2.

School of Life science and Engineering of Southwest Jiaotong University, Chengdu 610031 a xfl615@163.com; bsanpolincoln@163.com; c wangjelly1@163.com; dwujinjin19850616@163.com; e 15950592340@163.com ; f zhouchenghoujiayou@163.com; g xmwang991011@163.com Keywords: orthogonal design; 6N01 aluminum alloy; mechanical properties; microstructure Abstract: In this study, we designed four components of 6N01 aluminum alloy by orthogonal design, and analyzed the effect of the different elements for the mechanical properties and microstructure of the designed material after casting, homogenization annealing, extrusion treatment and natural aging.
But through research and literature review we found that what they provided is so wide, and the material properties is not stable enough, failed to reach the optimal level.
With Mg, Si as the factor 1, Mn as a factor 2, Cr as a factor 3, the content of three factors designed to two levels, as shown in Table 1-1.
Mechanical Properties Four different components of the aluminum alloy 6082 tensile strength, yield strength, elongation, bending and impact toughness properties as shown in Table 3.
Tab. 3 Mechanical test results of 6082 aluminum alloys No. σb/MPa σs/MPa L/% Bending performance 1# 264.50 248.41 10.43 Qualified 2# 234.87 210.97 10.67 Qualified 3# 290.07 275.67 8.4 Qualified 4# 309.24 300.80 6.23 Qualified Tab. 4 The range analysis of the effect of different element on the mechanical properties 　 Tensile strength Yield strength Elongation rate 　 A(Mg,Si) B(Mn) C(Cr) A(Mg,Si) B(Mn) C(Cr) A(Mg,Si) B(Mn) C(Cr) K1 499.37 554.57 573.74 459.38 524.08 549.21 21.1 18.83 16.66 K2 599.31 544.11 524.94 576.47 511.77 486.64 14.63 16.9 19.07 R 99.94 10.46 48.8 117.09 12.31 62.57 6.47 1.93 2.41 Filter the results Screening protocols： A2B1C1 Factors： A>C>B The material： 6N01S-4 Screening protocols：A2B1C1 Factors： A>C>B The material：6N01S-4 Screening protocols： B1C2 Factors：A>C>B The material：6N01S-2 From the screening results, we can draw, the final selection of the material is the6N01S-2 and 6N01S-4, but 6N01S-2 tensile strength is not enough, so removed from

The failure mode of specimens shows that delamination of glubam caused by dry wet circulation is the main reason for mechanical properties degradation.
GluBam is essentially an organic material like timber and GluLam and it presents obviously properties aging under outdoor conditions, especially affected by dry wet circulation and biologic corrosion.
So the mechanical properties aging of glubam is a very important effect on safety and durability for modern bamboo structures under the outdoor conditions.
In this paper, mechanical properties aging tests were conducted on deformation properties, tensile properties, compressive properties, bending properties and internal bonding performance.
Aging influence factor β is defined to research the correlation between basic mechanical properties and equivalent aging time.

Effect of Pre-Treatment of Lignocellulosic Fiber on Mechanical Properties of Chitosan-filled Filter Media A.
The pre-treatment enhance the fibrous filter media properties, while filter media from untreated empty fruit bunch fibers showed lower mechanical properties.
Surface modification aims to tailor the surface characteristics of a fibre for a specific application without detrimentally affecting the bulk properties.
Results and Discussion Fiber-matrix adhesion is one of the crucial factors that affect the mechanical properties of the fibrous filter media.
Liu et al found that the low concentration of chitosan solution did not improve the mechanical properties of oxidized cotton fiber [6].

The following mechanical material properties was used as the variable factors of the model: tensile strength ,yield strength uniform elongation , anisotropy parameters .
The levels of factors and the intervals of variations are shown in Table 1.
Experimental design consists of 46 factors combinations.
Levels and intervals of factors variation.
Analyzing the obtained graphs, it can be noted that in contrast to the anisotropy parameters the mechanical properties affect on polythickness value not significantly (Fig. 3-4).

Test and Analysis of Shengma Pure Yarn and Shengma/Modal Blended Yarn Mechanical Property Yang Qing-bin1,a 1College of Textile and apparel, Qingdao University, Shandong, Qingdao 266071,China aqdbrian@163.com Key words: Shengma Fiber, Blended Ratio, Yarn Property，Twist Factor，Elongation，Yarn Abstract: To discuss yarn mechanics property of shengma pure yarn or shengma modal blended yarn with different twist factor and different blending ratio were spun, yarn properties were analyzed.
The quality of the product, yield, cost, and the handling property were affected by the twist.
Different kinds of fibers have different twist factors. 18.2tex pure Shengma fiber yarns with different twist factors were spun.
Table 3 Tensile properties of Shengma fiber pure yarn with different twist factors Twist factor 215 237 258 280 300 323 344 366 Breaking strength/cN 161.20 181.63 197.54 204..23 209.41 204.85 208.56 219.86 Twist factor 387 409 430 452 473 495 516 538 Breaking strength /cN 224.56 225.89 239.21 233.47 224.33 216.67 209.04 196.5 According to Table 3, the relationship between the strength and the twist factor is plotted in Fig.3.
Conclusions （1）When Shengma fiber content is about 30% -40%, The yarn breaking strength and elongation at break are affected by the blended ratio of Shengma simultaneously.