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Sahin [5-7], the mechanical properties and friction welds structure from high-speed steels with medium-carbon steels and stainless steels with aluminum were investigated.
He showed that the main process parameters affecting the microstructure and tensile strength of welded joints are the friction time, friction pressure and forging pressure.
Table 2 shows the values of mechanical properties obtained after quenching and tempering.
Friction welding parameters chosen for experiment Welding Factors Range of Factors Friction Pressure (MPa) 27-61 Upset Pressure (MPa) 77-127 Burn off Length (mm) 6-10 Rotation Speed (rpm) 800 Results and Discussion Friction welding is a thermal deformation process that leads to a change in the metal structure of the near-contact zones.
The obtained mechanical properties are not inferior to the values of the base metal properties.

They found that the temperature dependence of the material properties affects the thermal buckling and postbuckling characteristic of symmetrically laminated beams.
The specimens were tested to measure the mechanical properties at various temperature levels; -20 to 70°C.
The safety factor for the whole HVAC system is smaller of the safety factors of lower and upper parts.
However, because the ultimate strength also decreases with temperature, the safety factors are 2.96 and 2.54 with temperature-dependent and constant materials properties, respectively.
Wang, Mechanical properties of foamed concrete exposed to high temperature, Vol. 26, No. 1 (2012) 638-654

The results indicate that the main factors affecting the bulge height are the thickness of sheet metal and diameter of punch-die within a certain range.
But the mechanical properties of product are poor by casting, material varieties are limited by casting die.
The second method is to use the punching process after forging operation, and the mechanical properties of parts are fine.
That to say, the main factors of affecting the tubular bulge height are the diameter of punch-die and the thickness of sheet metal.
The main factors affecting the bulge height are the thickness of sheet metal and diameter of punch-die within a certain range.

The excellent mechanical properties (i.e., elongation of 52%, a tensile strength of 785 MPa) have been obtained by adjusting the volume fraction and the stability of austenite.
Nowadays, the Fe-Mn-Al-C low-density steels are fairly attractive for the automotive due to their excellent mechanical properties [3-5].
Therefore, it is necessary to design a proper mechanical stability of austenite for achieving better mechanical properties.
The 900-5 steel exhibits a good combination of mechanical properties, with a product of tensile strength and elongation of 40.9 GPa·%
Peng, Evolution of the microstructure and mechanical properties of an austenite-ferrite Fe-Mn-Al-C steel, Materials Science and Engineering A, 643 (2015) 183-193

Tensile Properties.
Table 3 Tensile properties of the bulk nanocrystalline Al 7050 and the traditional counterpart at ambient temperature Sample Ultimate tensile strength [MPa] Elongation [%] Contraction of area [%] Traditionally wrought Al 7050-T6 480-590 5-10 - Bulk nanocrystalline Al 7050 1# 417 5.1 9.8 2# 390 4.3 10.4 3# 429 6.1 11.6 Average value 412 5.2 10.6 Fig. 4 The stress-strain curve for the tensile specimen of the bulk nanocrystalline Al 7050 Fig. 5 SEM images of the tensile fracture surface of the bulk nanocrystalline Al 7050 (a) low magnification; (b) magnified SEM image The Factors Affecting the Mechanical Properties.
In an effort to interpret the mechanical properties especially the low value for the strength of the bulk nanocrystalline Al 7050, it is necessary to investigate the strengthening mechanisms and other factors affecting the mechanical properties.
The strength of the interface also determines the failure modes and mechanical properties of the material [19].
Mechanical properties of an ultrafine-grained Al-7.5 pct Mg alloy.

Aside from these, the mechanical properties of natural fiber composite are surprisingly good.
The water absorption issue can also result in insufficient adhesive strength between matrix and fiber, thus affect the mechanical properties of the composite [8].
Aside of modifying the fiber surface, fiber loading is another factor which will affect the overall performance of the composite.
Effect of Different Surface Treatments on Mechanical Properties of the Composite.
However, mechanical properties of a composite can be weakened by improper surface treatment.

The alternating pressure of seawater can also affect the lifetime in deep-sea environment and probably is conducive to synergistic effects with other ageing factors.
Introduction In natural seawater environment, temperature and chlorine ion are well-known factors for organic coating degradation [1-6].
Many studies dealt with the effect of one factor and some of them, included the combination of two or three of these factors.
To date, there has been few works investigating the influence of alternating pressure of seawater on the protective properties of organic coating.
This value was very low, and the coating could be considered as losing its protective properties.

Chemical composition, type of the fracture, macro- and microstructure, as well as the mechanical properties of the metal are studied.
Structural and technological factors contributed to the destruction are identified.
View of the surface of the fracture, mag. x100: a - shaft #1; b - shaft # 2 To study the causes of the destruction, the chemical composition, mechanical properties, and structure of the shaft fragments were studied.
It follows from the table that the mechanical properties of the metal of both fragments satisfy the requirements of the relevant regulatory documents, with the exception of the hardness of the metal of the shaft #1.
Typical mechanical properties of the materials of the shaft core [4].

The Mechanical Properties of AA2024 as Function of the Interrupted Ageing Conditions D.
For most cases, the effect of interrupted ageing could not produce a simultaneous improvement in mechanical properties.
Introduction A high strength, a good fracture toughness and excellent fatigue properties are prime requirements for precipitation-hardened aluminium alloys for aircraft applications.
In contrast to strength, factors affecting fracture toughness are complex, as reviewed in [9].
The objective of the current study is to study comprehensively the influence of each ageing stage on the mechanical properties, i.e. strength and toughness of AA2024.

The cutting speed and tempering hardness is the two main factors affecting adiabatic shear, in the case of lower cutting speed the formation and development of adiabatic shear band are more sensitive to tempered hardness increase.
Common metals and their alloys, such as carbon steel, aluminum and alloy steel, when they are machined under the conventional cutting speed range, it can produce continuous ribbon band chip because these materials have high plasticity and good thermal properties.
These indicate that adiabatic shear is more sensitive to the cutting speed and rake angle which are the main factors affecting the formation and development of ASB.
The cutting speed is the main factor affecting this transformation
(2)The hardness of workpiece material is also one of the main factors affecting the adiabatic shear.