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In this work the effect of various parameters on the mechanical properties viz. tensile strength and impact strength were studied.
Both the alloys have very good mechanical properties.
These three factors are varied at three levels for two tools.
So conducting one experiment at a time for three factors at three levels give 27 experiments if full factorial design is considered.
This proves that pin profile along with dimensions also plays an important role in determining the mechanical properties of the welded joint.

Comparison of the Mechanical Properties of Hastelloy X Material after Welding by GTAW and Nd-YAG Laser Shih-jeh Wu 1 , Chao-Wei Du and Chen-Ming Kuo 2 Department of Mechanical and Automation Engineering I-Shou University 1 Section 1, Hsueh-Cheng Rd.; Ta-Hsu, Kaohsiung 84008, Taiwan Email: 1wsj007@isu.edu.tw, 2cmkuo@isu.edu.tw Keywords: Gas Tungsten Arc Welding (GTAW), Nd-YAG laser welding, Hastelloy X, Tensile Property Testing, X-ray diffraction.
The superior properties at high temperature (e.g. creep resistance, corrosion resistance, and thermal fatigue) have consistently improved the performance of aircraft engines.
Weld quality is a function of many factors: the type and quality of metal deposited, the heat treatment inevitably experienced by deposited metal and by the parent metal around the weld (the Heat-Affected Zone), and the residual stresses left in both the parent and deposited metal.
Temperature and temperature distributions affect expansion and contraction and the relationship between stress and strain and thus, residual stresses.
In this study, we study the mechanical properties of the Hastelloy X alloy under two different welding methods i.e., GTAW (Gas Tungsten Arc Welding) and Nd-YAG Laser.

Therefore it is significant for the understanding of the tensile performance of the woven membrane materials, which is a main factor for the evaluation of the mechanical properties of the materials.
However, in this method, due to the existence of the sewn yarns, the tensile properties of the membrane materials obtained have been affected significantly.
Factors in the cruciform-shape bi-axial tensile tests Although the cruciform-shape bi-axial tensile tests have been applied mostly, there is no international standard about that.
Due to the inelastic property and the long expected service time of the flexible membrane materials, it is necessary to grasp the mechanical property after the application of the materials on the light weight structure for a long time.
The factors, such as the configurations and dimensions of the cruciform sample, the loading modes of the bi-axial stresses and the means for the measuring of the strains, which would affect the mechanical properties have been analyzed in detail.

Previous studies only show the individual impact of these concrete recycled materials on mechanical and durability properties.
The experiments were carried out to test mechanical properties like compressive, tensile and flexural strengths by mixing constituent materials of concrete in a mechanical mixer.
Material and Mixture properties.
Mechanical and durability properties of recycled aggregate concrete with ternary binder system and optimized mix pr. 
Abrasion resistance and mechanical properties of Roller Compacted Concrete with GGBS. 

Some parameters such as conduction, convection, thermal properties of material with temperature and gauss distribution of heat flux has been considered in the laser drilling process.
The theoretical study and simulation of laser and material effect are particularly important, not only the simulation can help get factors which affect the efficiency of the laser process, but the results of simulation can guide the actual machining process.
ANSYS version 14.5 has been used to build the thermal mathematical model of the laser process, and the model considered important factors of the laser process such as conduction, convection, thermal properties of material with temperature and gauss distribution of heat flux in order to analyze the temperature distribution of stainless steel workpiece.
The interaction process between laser and material is very complicated and there is a lot of factors influencing the drilling process[3].
Not all the factors can be considered in the simulation and some assumptions need to be made to simplify the model.

The parameters affecting the surface finish are found as Spindle speed, feed rate, Depth of cut, number of passes, work piece material, and lubrication [1-8].
The strength and good mechanical properties make the 6063 aluminium alloy appropriate for the use in aerospace industry.
The chemical composition and mechanical properties of the work piece material is given in Table 1.
Table 1 Chemical composition and mechanical properties of Aluminium 6063 alloy Chemical Composition Copper Silicon Manganese Other Iron Aluminium 0.10% 0.20% 0.45% 0.45% 0.35% Balance Mechanical Properties Tensile Strength (Mpa) Yield stress (Mpa) Density (kg/cm3) Thermal conductivity (w/m-k) Elongation (%) Hardness (HV 100) 241 214 2.7 200 12 83 The work piece material, as shown in Figure 1, was of size 98mm×98mm×10mm, on which 9 pockets of size 16mm×16mm were milled based on selected parametric values, using VF-2 HAAS milling machine with 16mm diameter Carbide four flute end mill cutting tool.
The percent contributions of the milling parameters on the surface roughness and Material removal rates are shown in Table 10 and Figure 3. spindle speed (45.39%) was found to be the major factor affecting surface roughness and material removal rates, whereas feed rate (43.83%) & depth of cut (7.71%) , were found to be the second, and third ranking factors respectively. 4.3 Confirmation Test After evaluating the optimal parameter settings, the next step is to predict and verify the enhancement of quality characteristics using the optimal parametric combination.

Factors affecting loess liquefaction caused by earth microtremors 4.1 c and values of loess Now let us analyze Coulomb’s Law (2) We can find that c and c and values are respectively measurable parameters of the friction and clay bridges among particles from formula(2).We wanted to know how c and values of loess vary after loess is soaked by water.
Collapse is due to contributory factors such as water soaking,self-load pressure and dynamic load and to built-in internal factors such as large pores and chemical,mineral and moisture contents.
Dynamic load caused earth microtremors is the most important of these factors.
,and Yao, M.,1997,Mechanical Properties of Loose Liquefied Sand Undergoing Lateral Flow: Proceedings of the International Symposium do Landslide Hazard Assessment, Xian,China,PP.57-74
In Genesis and Properties of Collapsible Soils: kluwer Academic Publishers Group, Dordrecht, pp. 267-293

We also did some study on the effects of annealing temperature on the mechanical properties and metallographs.
The alloy has excellent corrosion resistance and good mechanical properties, processing properties, which has been widely used as a material of corrosion-resistant equipments [1].
Mechanical properties of Monel alloy hot-rolling plates on different annealing temperatures are shown in Table 2.
From various factors, annealing temperature of Monel hot-rolling plates ranges from 650°C to 750°C.
Feng: Metal Physics III: Mechanical Properties of Metals (Science Press, China 1998)

It gives more particularly decrease factors for the ultimate tensile strength, the characteristic yield stress and the elastic modulus with temperature up to 1200 °C.
The average results and the standard deviation are given in Table 1 for each studied case and for the three mechanical properties: ultimate tensile strength Rm, characteristic yield stress Rp0.2 and the elastic tensile modulus E (determined accordingly with [2]).
Obtained experimental mechanical properties for steel rebars Maximum temperature, in °C d, in mm Rm, in MPa Rp0.2, in MPa E, in GPa 20 12 590.5 +/- 0.9 535.0 +/- 3.4 195.5 +/- 5.7 40 12 587.6 +/- 3.8 534.5 +/- 3.6 211.5 +/- 20.7 100 12 572.2 +/- 0.7 518.1 +/- 1.6 229.8 +/- 9.8 140 12 573.1 +/- 0.5 518.2 +/- 2.3 217.1 +/- 21 20 16 573.2 +/- 0.7 504.5 +/- 2.0 197.4 +/- 8.7 140 16 551.7 +/- 2.9 482.5 +/- 6.2 191.4 +/- 6.0 Experimental investigations on the adherence between concrete and rebars State-of-the art.
It gives more particularly decrease factors for the ultimate tensile strength, the characteristic tensile stress and the elastic modulus with temperature up to 1200 °C.
Obtained experimental mechanical properties for prestressing wires Maximum temperature, in °C Rm, in MPa Rp0.1, in MPa E, in GPa 20 2110 +/- 12 1867 +/- 3 226.1 +/- 5.0 40 2095 +/- 11 1854 +/- 15 226.3 +/- 0.9 100 2048 +/- 3 1793 +/- 4 224.5 +/- 3.4 140 2015 +/- 15 1726 +/- 14 213.4 +/- 1.1 Experimental investigations on the relaxation of prestressing steel wires State-of-the art.

Eco-Al is the new material which is replaced Mg of aluminum alloy with Mg+Al2Ca, therefore Eco-Al material has improved mechanical properties and formability.
The clearance between the punch and die of a fine blanking tool is an important design factor that affects the sheared surface of a product.
Especially, researches on weight reduction of automobiles wherein strength of components and functional factors are satisfied while weight is decreased are very active.
Table 1 shows its mechanical properties.
Lee, Microstructure and Mechanical Properties of Eco-2024-T3 aluminum alloy, Advanced Materials Research Vols. 602-604 (2013) p. 623-626 [2] W.