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The stirring and mixing of the material and the temperature during friction stir welding are the main factors that determine the possibility of obtaining weldments with precise mechanical properties.
All these factors led to unsuitable welding temperatures.
Therefore, lower mechanical properties were found for all weldments made with P1.
Of all used pins, P4 led to the highest values of the mechanical properties.
The increase in welding rate led to an increase in this ratio for both mechanical properties.

Nevertheless, it is obvious that individual crystallization conditions in each local interval affect the mechanical properties of the castings.
Information on the mechanical properties of 35L medium-carbon steel in different diameter samples is given in Table 1.
Grain size change in castings of different diameter (а) Ø 16 mm, (b) Ø 40 mm, (c) Ø 60 mm; (d) Ø 80 mm It is possible to graphically represent the primary structure of the influence on the mechanical properties of the steel, (Fig. 3), having in mind that the secondary structure in the annealed steel samples completely identical and, therefore, does not affect the properties.
Zaymovsky, Structure and mechanical properties of metals, Moscow, Metallurgy, 1970
Il'Inskii, Factors affecting the dispersity of the dendritic structures in steels.

This paper describes the structural characteristics, manufacturing processes and quality problems of hand-pushing tapping knife for natural rubber tree milk and suggests several measures to improve its mechanical properties effectively by analyzing relevant factors that affect hand-pushing tapping knife’s mechanical properties.
Knife blade Fig. 1 Hand-pushing tapping knife’s structural diagram Analysis of factors that affect hand-pushing tapping knife’s mechanical properties The main factors that affect hand-pushing tapping knife’s mechanical properties include raw material quality and heat-treatment process, etc.
Several measures to improve hand-pushing tapping knife’s mechanical properties Strengthen quality inspection of incoming raw materials.
If quenching temperature is too low, knife’s mechanical properties, especially its wear-resistance, will be reduced even its hardness can meet requirements.
Perform a good mechanical property analysis.

The mechanical properties of weld joint were evaluated by means of tensile tests and hardness test at room temperature.
High degree of reliability and safety are the most important factors in any industry.
The result from the analysis shows that, the major parameters affecting the welding mechanical properties are the type of tool geometry, followed by rotational speed and welding speed.
When the material is removed as chips, there will be not enough material to stir which consequently affects the mechanical properties of the joint.
Conclusion Based on this experimental study, the following observation and conclusion can be made: § By analysis of variance (ANOVA), the significant parameters affecting the weld mechanical properties are tool geometry and the combination of tool geometry and rotational speed

Factors affected on damping capacity are grain size, crystal orientation, dislocation motion, and so on.
It was found that damping capacity has been affected by grain size and crystal orientation.
However, if magnesium is alloyed in order to improve its mechanical properties, damping capacity of magnesium is significantly reduced [1].
Also, damping properties of metals are normally influenced by microstructural factors such as grain size and texture and so on.
And then, contributed factors on damping capacity were confirmed by analysing microstructures, hardness and damping capacity, according to dislocation string model and Granato-Lucke equations.

This is one of the main factors which constraint coalbed methane production yield.
In this paper, geological factors including the composition of coal petrography, the mechanical strength of coal petrography and coalbody structure destruction and engineering factors including drilling, fracturing and drainage were analyzed to study on the controlling factors on the output of pulverized coal.
Fig.1 The statistical results of reason for workover Controlling Factors on the Output of Pulverized Coal The genesis of pulverized coal is the result of multiple factors.
Geological factors mainly include the composition of coal petrography, mechanical strength of coal petrography and coalbody structure destruction while engineering factors mainly refer to the drilling, fracturing and drainage engineering.
Due to the difference of sedimentary environment and tectonic evolution, the properties of coal petrography are significantly different.

The need for welded structures of high-strength steels requires detailed studies on the factors influencing the behaviour of these steels during welding.
The high mechanical properties of these steels are achieved by thermo-mechanical treatment (TMCP) or by heat treatment (Q&T).
Information on the chemical composition and mechanical properties according to the certificate of the manufacturer is given in Table 1.
Błacha et al, Microstructural Characterization and Mechanical Properties of Electron Beam Welded Joint of High Strength Steel Grade S690QL, Arch.
G. da Silva Araújo, Microstructure and mechanical properties of a microalloyed steel after thermal treatments, Mat.

The research was study the effect of post weld aging parameter on mechanical properties.
Factors affecting the optimum were solution temperature 1050 oC, PWA temperature 850 oC and PWA time 4 hr. at hardness optimum of 282.36 HV and tensile strength optimum of 109.37 kN.
The aim of the research has been to study effect post weld aging related mechanical properties of duplex stainless steels.
Factors affecting the optimum were solution temperature 1050 oC, PWA temperature 850 oC and PWA time 4 hr. at hardness optimum of 282.36 HV and tensile strength optimum of 109.37 kN.
-O., Kangas P., Karlsson T., Wilson A., Microstructural stability and mechanical properties of a high nitrogen super duplex stainless steel, Mater.

Line heating is a complex thermal-mechanical process as many factors affect the final shape of a processed plate.
Temperature-dependent mild steel physical properties, including density, thermal conductivity and specific heat, are set according to Fig. 1.
Fig. 1 Temperature-dependent physical properties Fig. 2 Finite element model The geometric model is meshed.
Fig. 3 Fishbone diagram of influencing factors in line heating process Specification of Factors.
Line heating is a complex thermal-mechanical process as many factors affect the temperature field.

However, up to now, no systematic data have ever been published in concerning the mechanical properties.
Thus the strange behavior of the CVD diamond films that the grain size seems to be the only factor affecting the fracture strength is explained.
Technical route that may lead to the improvement in mechanical properties Apparently any technical measure which will reduce the size and amount of the defects (cracks) will certainly improve the mechanical properties of the CVD diamond films.
Besides the effect on grain size (which is related to the thickness), fracture strength is insensitive to any other factors.
Field: Properties of natural and synthetic diamond, edtied by J.E.