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The mechanical property was examined using tensile test.
The microstructure and mechanical properties of the IF steel annealed in CCA and UFA were investigated.
According to the ASTM standard, the mechanical properties were performed on a CMT 5105(SANS) universal testing machine with a draw speed of 1 mm/min.
Mechanical Properties.
The mechanical properties of annealed specimens are given in Table 2.

The influencing factors of wax deposition on the pipe wall The composition of crude oil.
Tests showed that the wax deposition is also affected by the water in crude oil.
The surface properties of the pipe wall or the coating have direct effect on the number of crystallization centers and the ease of crystallization.
For running pipeline, wax deposition influenced by the combined effect of the above factors.
And its main influencing factors are: the composition of crude oil, oil temperature, the temperature difference between crude oil and pipe wall, oil flow velocity, pipeline material, the relationship between wax deposition layer thickness and the run time and the combined effect of these factors.

Nguyen et al. [6] obtained the analytical solutions with shear correction factors of rectangular plate structures.
And, performed stress analysis considering the factors of FSDT.
In order to consider the distribution of shear correction factors, Ref. [6] obtained variable shear correction factors.
Also, the tendency of effective property change affects the vibration behaviors.
Sab, Shear Correction Factors for Functionally Graded Plates, Mech.

There are many factors affecting fatigue crack growth such as; crack length, orientation of crack, thickens of the cylinder and the load ratio.
Fatigue crack growth as consequence of service loads depends on many different contributing factors.
The steel material is selected with the mechanical properties shown in Table 1.
In addition, the magnitude of these affects depends on loading variables, specimen geometry, material properties, microstructure and environment.
Among many factors affecting the FCG, the effect of initial crack and stress ratio are shown.

From surface to center, precipitation phases within grains and grain boundaries gradually coarsen, mechanical properties reduced.
Microstructural characterization and properties tests.
In 1/4 layer, the mechanical properties of L direction and T direction was similar.
The mechanical properties of the alloy in the rolling direction and the long transverse direction were much higher than those in the thickness direction.
(3) The combined factors of the substructure proportion, texture distribution and precipitation phase morphology inside the crystal cause the anisotropy of 7xxx ultra-thick plate performance.

The method was developed considering some specific factors in the construction of mechanical systems and the relationship between system cost and reliability.
Since it is impossible to cover all these factors by allocation methods, some simplifications must be made.
Some of them rely on technical parameters, i.e. on technical and functional requirements plus properties of system elements and components [4, 5], whereas the other group rely on cost optimization models.
On the other hand, the models relying on cost optimization neglect the effects of technical requirements and properties of the system elements, but provide a favorable economic result.
All factors affecting reliability allocation should be studied in detail and particular attention should be given to each of them.

The grain size of the extruded alloy was significantly refined and the mechanical properties increased remarkably compared to the as-cast alloy.
The microstructures of the extruded alloy are influenced not only by interactive action between hardening and softening but also by factors such as the temperature, strain rate, degree of deformation and its own nature.
Fig. 4 shows the mechanical properties of the as-cast and extruded alloys at different temperatures.
When the extruded temperature is 1075 ℃, the best mechanical properties can be achieved.
Thus the amount and depth of the dimples reduce, which results in deterioration of mechanical properties of the alloy.

The effects of C content on the mechanical properties and microstructures of GT35 composites were investigated.
The results showed that the good mechanical properties of steel-bonded cemented carbide GT35 composite were obtained with 0.9wt.% C at the same sintering conditions and the density reached 6.12g/cm3, the average bending strength was over 1229MPa after heat treatment, the mean hardness HRC was 69.4.
The effect of C content on density and mechanical properties of GT35 composites.
Besides, pores were formed due to the blocked CO gas, impairing the microstructure and properties of the composites.
%C exhibit excellent properties: the density reached 6.22g/cm3 , the average bending strength reached 1229MPa after heat-treatments, the hardness exceeded HRC 69.4.

The material of furnace pipe for the HK40 are able to meet the process requirement, but the wall thickness of reformer pipe is too large, affecting the thermal efficiency and the inner diameter is small to limit the catalyst and flow.
So, the microstructure, mechanical properties and life prediction and assessment are done for reformer furnace pipe in radiation section run for 100,000hrs in this paper.
The rupture properties at 900ºC and 50MPa of different sections of reformer pipe are tested, the results are shown in Figure3.
The main components of reformer furnace can be also used for two to three years if other occasional factors are taken into account, value of P can be calculated according to the maximum wall temperature and can be mended occasionally.
The material of furnace pipe for the HK40 are able to meet the process requirement, but the wall thickness of reformer pipe is too large, affecting the thermal efficiency and the inner diameter is small to limit the catalyst and flow.

GH80A has been widely used in industry for its excellent property under high temperature.
The surface integrity is one of the key factors that determine the lifetime.
Introduction For its superior mechanical properties under high temperature, GH80A has been used widely as key material in aeronautics, gas turbine engines and other high-temperature application [1].
Johnson-Cook model was used in the simulation which was suitable for modeling cases with high strain, strain rate, strain hardening and non-linear material properties [6].
In dry turning of GH80A, the temperature plays a more important role than other factors that affect the residual stress in the surface.