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This instability of properties may be due to numerous random factors, including first of all the fluctuations of alloying elements and impurities within standard-specified limits.
The structure of semi-finished products is another factor that may affect the stability of properties [1-3, 6, 11, 12, 15].
The variation of properties due to various factors was evaluated by the ratio: γ=R2·100%, where R is the coefficient of correlation.
Considerable data scatter in the diagrams is due to neglect of other factors in the analysis.
Scatter diagram to show how chemical composition, structure type and score affect the mechanical properties of VT6 bars after annealed in different ways (bold numbers indicate significant values of the correlation coefficient) Table 3.

Consideration of Moisture Factor During Material Selection in Plastic Product Design Burak KUKCU1,a,*, Buse DASDEMIR1,b 1Mesan Lock Inc., Silivri, Istanbul, Turkey aburakkukcu@essentra.com, bbusedasdemir@essentra.com Keywords: PA66 GF, Moisture analyze, Product Design, Mechanical properties Abstract.
Humidity is a crucial environmental parameter that can profoundly influence the properties and performance of plastic materials.
For this reason it is important to evaluate the moisture absorption properties of plastic materials.
Its impacts also affect the items' mechanical, thermal, and chemical properties, rather than just their aesthetic or visual elements [5].
References [1] Taktak, R., Guermazi, N., Derbeli, J., Haddar, N.: Effect of hygrothermal aging on the mechanical properties and ductile fracture of polyamide 6: experimental and numerical approaches.

Milling time significantly affects the structure, composition and properties for both metallic and composite systems.
All of these factors determine the hysteresis loop and consequently affect magnetic parameters such as saturation magnetization, Ms, coercivity, Hc, and remanence, Mr.
Magnetic measurements and MFM images showed that the plastic deformation introduced by mechanical alloying leads to a microstrained structure affecting the total energy of the magnetized samples.
Srinivas, Vidyadhar Singh, Evolution of microestructure and magnetic properties of nanocrystalline Fe70-xCuxCo30 alloy prepared by mechanical alloying, J.
Azzaz, Structure and properties of nanocrystalline Cu70Fe18Co12 obtained by mechanical alloying, J.

Mechanical properties were determined at room temperature on samples cut from the base and weld metal.
To determine the mechanical properties of welded joints, static tensile and impact bending tests were performed.
Mechanical Properties The study of mechanical properties of welded joints (Table 2) of low-cost titanium alloy Ti-2.8Al-5.1Mo-4.9Fe obtained by EBW, allowed to conclude that the lowest values of strength are obtained in sample with the pre-heating to 400°C.
Mechanical properties and microstructures of low cost β titanium alloys for healthcare applications.
Enhancing the mechanical properties of electron beam welded TC17 titanium alloy joint by post-weld heat treatment.

It was shown that the rolling of the alloy leads to strong anisotropy in mechanical properties.
The effect of the deformation structure on the mechanical properties and their anisotropy is discussed.
As a result, the work hardened Al-Mg-Sc-Zr alloy may exhibit anisotropy of mechanical properties, which affects the formability of [6].
Mechanical properties.
The fine coherent Al3(Sc,Zr) particles do not affect the changes in mechanical properties and anisotropy during isothermal rolling.

Microstructure and mechanical properties of laser beam welded AA7021Aluminum alloy Wang Feng*, Xiong Baiqing, Zhang Yong’an, Liu Hongwei, Li Zhihui, Li Xiwu, Xia Fengbin, State Key Laboratory for Nonferrous Metals and Process, General Research Institute for Nonferrous Metals, Beijing 100088, People’ Republic China *E-mail: wfbs@263.net Keywords: Laser beam welding, Microstructure, Mechanical property, Al-Zn-Mg alloy.
Tensile properties of the joints were obtained by testing flat transverse tensile specimens, and the results indicated that tensile strength of these welds approached 76.8~77.3% of the base metal.
Joining is one of the key factors required for industrial application of aluminum alloys[3].
Medium strength Al-Zn-Mg alloys have a good combination of properties making them suitable for many automotive applications where high specific mechanical properties are required.
The microstructure and mechanical properties of an AA7021 alloy laser beam welded material were investigated by a detailed evolutions of the microstructures in various zone, and tensile strength of the joint.

The influence of the oxide inclusions on the microstucture, properties and the Heat-affected-zone (HAZ) toughness of low alloy steels has been investigated.
The microstructure and mechanical properties of base metal and samples undergoing welding thermo-simulation were also analyzed.
Furthermore, prior austenite grain size is also an important factor affecting the nuclei of IAF [4-5].
Experimental Results (a) (b) Fig.1 The microstructure of steels No.1 (a) and No.2 (b) The microstructure and mechanical properties of base metal.
The mechanical properties for both steels are listed in table 1.

Mechanical Properties of MIRHA-Fly Ash Geopolymer Concrete Ridho Bayuaji1,a, Muhd Fadhil Nuruddin2,b, Shahanema Francis2,c, J.
The option of the source materials for creating geopolymers depends upon some factors such as availability, cost, type of application, and specific demand of the end users.
It shows that the different amounts of Al-Si materials in fly ash and MIRHA affected the properties of geopolymer concrete.
Bayuaji, "Effects of Microwave Incinerated Rice Husk Ash (MIRHA) on Hydration And Mechanical Properties of Foamed Concrete," in Civil Engineering. vol.
Neville, Properties of Concrete: Longman, 1995.

The processing temperature is an important factor to affect the microstructure and mechanical properties of the Mg alloy during ECAE.
Grain refinement was an important practice to improve the mechanical properties of magnesium alloy.
The mechanical properties and microstructure evolution of Mg alloy would be controlled by the ECAE procedure.
And the mechanical properties and microstructure evolution during ECAE and two-step ECAE will be discussed.
Summary The processing temperature is an important factor to affect the microstructure and mechanical properties of the Mg alloy during ECAE.

A Preliminary Analysis of Main Factors Affecting Stress-strain Behaviors of Frozen Soil with High Water Content Shujuan Zhang1,a, Zhizhong Sun1,b and Haimin Du1,c 1 State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, 730000, China asjzhang@lzb.ac.cn, bsun@lzb.ac.cn, c812205958@qq.com Keywords: Frozen Soil, High Temperature, High Water Content, Stress-strain Behavior, Main Factors.
Introduction The strength of soil is one of the most important mechanical properties of soil.
The frozen soil with high temperature and high ice content is rather sensitive to the outside role, so the mechanical properties are more likely to be affected.
So at present study, we will put forward the preparation method of sample with high water content, and analyze the main factors affecting the stress-strain behavior of frozen soil with high water content.
On the basis of the results from plenty of testing data, main factors effecting on the stress-strain curve of high water content can be reduced to the following: Soil type and strain rate For the silty sandy soil, the stress-strain curve is hardening in regardless of the shearing rate and water content at -1.0°C, as is shown in Fig. 4(a).