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This is principally due to the scatter in mechanical material properties, to the surface defects and lubrication conditions.
Every sheet forming process should be optimized on the basis of the real mechanical and formability properties of the provided materials.
If a not destructive, fast and easy method was present, it would be possible to acquire mechanical properties of metal sheets in real time and to set accurately forming processes.
This occurrence is typical of commercial supplies in which nominal properties may differ significantly from real properties.
This is the reason to adopt an on-line control to evaluate the effective sheet mechanical properties and to avoid unexpected problems during forming.

The basic material property identified parallel to rolling direction (0o) and perpendicular to rolling direction (90o).
In conventional method, the strength design of steel structure is usually determined by using a safety factor where the value of the safety factor used in design phase will influence its weight[3,4,5,8].
In the Table 1, the specimen with thickness t = 0.6 mm shows that the tensile properties of base material tested under the load parallel to the rolling direction (0o) of specimen is 10 % higher than another one test load is perpendicular to rolling direction (90o).
Meanwhile, for specimen with t = 1.2 mm, the tensile properties of base material where the test load direction parallel to the rolling direction (0o) of specimen is quite similar (different 0.5%) with another one (perpendicular to rolling direction/ 90o).
Ashby,” Material Selection in Mechanical Design”, Second Ed. (1999).

Study of the Mechanical Properties of Single-Layered and BilayeredCoCrFeSi Ribbons Using Quasistatic and Dynamic Nanoindentation Tests.
Understanding crystallization kinetics and factors that induce the process makes one able to predict the thermal stability and determine the operating conditions of the material.
The fcc phase stands as another microstructure parameter affecting the mechanical performance of the material, in addition to typical parameters such as grain size, dislocation density, crystallographic texture, etc. [[] Knapek M, Minárik P, Dobroň P, Šmilauerová J, Celis M M, Hug E, Chmelík F (2020) The Effect of Different Thermal Treatment on the Allotropic fcc↔hcp Transformation and Compression Behavior of Polycrystalline Cobalt.
Magnetic properties and nanocrystallization process in Co–(Me)–Si–B amorphous ribbons. 
Main factors determining this process most probably are two tendencies: preferred interaction between Co and B -atoms and the formation of Co-based clusters due to magnetic interaction.

The existence of joints not only significantly affects the static properties of rock masses, but also their dynamic response and stability under blast waves.
As a matter of fact, the existence of joints not only significantly affects the static properties of rock masses, but also their dynamic response and stability under dynamic loading[4].
The properties of the organic glass employed are listed in Table 1.
The properties of mastic are also shown in Table 1.
The factors mentioned above can result in different initiation modes and coalescence modes of wing cracks.

Because the change of microstructure is an important factor to control the physical and chemical properties of polycrystalline materials, the basic characteristics of normal grain growth process have been widely studied [1-3].
In this paper, the main factors affecting the crystallization grain growth of malleable AZ31 magnesium alloy are further studied.
The study of the factors affecting recrystallized grain size has great significance for practical engineering application.
Fig. 1 Relationship between K1, K2 and grain boundary properties: (a) the relationship between K1, K2 and grain boundary energy; (b) the relationship between K1, K2 and grain boundary range [3] Table 1 Values of K1 and K2 when the interface energy is different σgb [J/m2] 0.33 0.44 0.55 0.66 K1 [102J/mol] 2.35 3.53 4.12 5.89 K2 [10-12m2J/mol] 1.82 2.58 3.53 4.14 Simulation Result Analysis According to the parameters obtained in Table 1, they are put into the computer program to run.
The speed of grain boundary movement determines the grain growth rate, and the grain boundary energy is the decisive factor of grain boundary movement speed.

In order to obtain excellent ballistic performance, some adhesive with a variety of content of nano-SiO2 was prepared, and mechanical properties and ballistic test were conducted.
The targets with adhesive added in 20% nano-SiO2 express the best anti-bullet properties.
Table 1 Preparation of adhesive Num E51[g] 651[g] Nano-SiO2[g] A1 100 30 - A2 100 30 5 A3 100 30 10 A4 100 30 15 A5 100 30 20 Mechanical Properties Testing of Adhesive.
All those things can strongly affect the ballistic performance.
As discussion above, the adhesive with 20%nano-SiO2 express good properties.

A significant part of such structures operates in a complex stress state when exposed to natural and technological environments that cause irreversible physical and chemical changes in the properties of materials.
As the analysis of the scientific literature shows, this is objectively due to the complexity of the metal-protective coating system, the versatility of physical and chemical processes and the influence of various factors on these systems in penetrating media, and insufficient studies of some stages and processes of their interaction.
Most researchers proceed from the concept that a coating film does not affect the mechanism of metal corrosion, but affects only the kinetics of the process, acting as a diffusion barrier.
Protection of metal against corrosion by paint and varnish, as well as by polymer coatings is determined by the following factors: mechanical insulation of the metal from the corrosive environment; adhesion preventing the formation of a new phase (rust) at the metal-coating interface; by slowing down electrode reactions causing the corrosion process by creating conditions for metal passivation; by structural transformations in the films that determine the properties of the coatings.
The composition of AKS-K is effective both in moderately aggressive and highly aggressive environments, and the composition of AKS-B shows protective properties only in moderately aggressive environments • The protective properties of coatings from the developed compositions are not much dependent on their thickness, which allows to apply one-layer coating under careful drying and degreasing the surface of metal structures; • coatings of the compositions AKS-K and AKS-B, applied over rust, significantly surpass the standard coating systems by the protective properties; • a characteristic feature of coatings from AKS-B is that they retain their protective properties in a highly aggressive environment when applied onto a rusty surface, while, when applied onto a clean surface, these coatings are completely destroyed after 7-8 cycles.

Now, considerable attention is being paid to improving the process, so as to produce parts with locally varying distributions of mechanical properties, which introduces the potential for making parts conforming more fully to functional requirements [2].
Fig. 1 schematically shows in simplified form the distribution of microstructure in the work-piece and formed part, and the method of assessing mechanical properties.
Microstructural distribution varies with many factors consisting of both material thermal properties and thermal conditions, such as thermal conductivity of the alloy, distribution of heating temperature, and soaking time.
For beams with graded microstructures, the local instability initiated at a position away from the hard (martensite) zone, in a region associated with mixed microstructural phases and therefore a range of mechanical properties.
Investigation on the mechanical properties of as-formed boron steels for optimizing process strategies in hot stamping, the 14th International Conference of Metal Forming, 2012

About columnar jointed basalt, Wang Yi [4], Shi Anchi [5], etc. studied the mechanical properties of this type rock, got the deformation modulus value range, all the members of the opposite sex characteristics etc.
Understand the characteristics of columnar jointed basalt intrinsic factors and the nature of reason, it's available in the columnar joints basalt, foundation surface excavation for the future of the columnar joints basalt exposure after the relaxation characteristics of performance, construction method and matters needing attention in construction research has the vital role. 3 The reason of fragmentation and deformation parameters do not match Site survey found that columnar jointed basalt has the following typical characteristics: (1) Characteristics of the medium itself Characteristics of the rock itself, the media is a key factor in determining the mechanical properties of rock and the characteristics of the medium itself can be reflected by physical indicators.
Table 3 shows the study area to collect physical and mechanical properties of basalt, we can be seen from the table, columnar jointed basalt rock of proportion, bulk density were higher than other spots Basalt oblique, almond basalt, meanwhile, on the porosity and water absorption than other rocks, these characteristics determine rock mechanical properties of the medium columnar jointed basalt rock lithology is superior to the other rocks in the study area, from the table, compressive strength, elastic modulus and other mechanical indicators have clearly reflected.
Figure 1 The characteristics 1 of columnar Figure 2 The characteristics 2 of columnar jointed basalt outcropping microcracks jointed basalt outcropping microcracks 4 Conclusions According to the results of tests and analysis shows that rock fragmentation size, is not the only factor in the decision of rock deformation resistance, mechanical properties, development and other structural characteristics of the surface structure factors also play an important influence.
Columnar jointed basalt, although the block of the rock is small, because the mechanical properties of the rock medium is good in itself, and the rigid structure of the surface in contact with rock, tightly closed, and therefore has a high deformation modulus and longitudinal wave velocity.

The corrosion resistance of materials is affected by many factors, such as crystal defects, metallurgical structure, composition, etc.
The higher corrosion resistance of CP-Ti processed by multi-pass ECAE could be attributed to factors as follows.
The results suggest that the texture is the dominant factor controlling the corrosion properties of two-pass ECAEed CP-Ti.
Improving the mechanical properties of magnesium and a magnesium alloy through severe plastic deformation.
Effect of the number of ECAP pass time on the electrochemical properties of 1050 Al alloys.