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The research provides a new method to analyze the relations among the properties of material mechanics on nano scale and establishes a base to further study on the method of assessing residual stress through measuring hardness value.
Mechanical property of material is studied using molecular dynamic method from then on.
The affecting mechanics is explained and new method of measuring residual stress is introduced.
But this difference didn’t affect the qualitative research of molecular dynamics simulation.
In this paper, the relation between the two factors is studied on nano scale.

The potential retentive properties of the matrix are often assessed, as in the case of wear properties, by its yield strength, since to break the hold on a diamond, the yield strength of the matrix has to be exceeded [21].
To meet all the requirements of any given application, a number of factors must be taken into consideration.
Diamond manufacturers provide the toolmakers with a wide range of natural and synthetic grits of varying properties such as mechanical strength, thermal stability and matrix retention characteristics.
Which concentration to use depends on a number of factors.
When selecting the segment composition, the material to be cut and its properties should be considered first.

As a result, great attention is now focused on resource-saving stainless steels, that is high-nitrogen austenitic stainless steel (HNASS) showing not only low cost but also excellent mechanical properties, corrosion resistance, oxidization resistance and wear resistance etc. [1-5].
The two processes will affect each other unless recrystallization is complete before precipitation begins during the aging treatment [8].
The interaction between precipitation and recrystallization will affect microstructures and properties of the steel.
PZ is the Zener resistance caused by pinning of the second-phase particles. a is a shape factor.
After the formation of the recrystallized nucleus, the growth process of the grain is affected by the Zener resistance PZ.

Other alternative coolant approaches involve the use of gases as the coolant for enhancing the machinability through the changes in cutting tool/workpiece material properties.
The chemical composition and mechanical properties of stainless tool steel are (C 0.38%, Si .9 %, Mn 0.5%,V 0.3%, and Fe Balance), Hardness 48 HRC and yields strength 1280Mpa respectively.
Surface roughness can be a clue to changing surface integrity that may affect the service life of component.
As hard turning is mostly used as a finishing process it is imperative to study about the parameters affecting the surface integrity and in turn fatigue life of the hard turned.
Cutting temperature is an important factor for evaluation of machinability when turning of hardened stainless steel, high temperatures and high mechanical stresses are created which lead to the early tool wear and reduce the tool life; besides, they increase the forces and tensile residual stresses, affect the surface finish and cause white layer.

These materials generally possess many unique properties such as high tensile strength, and fairly large plasticity at low temperature.
Regarding the fatigue on ECAPed UFG materials, most studies [1-4] have concentrated on cyclic deformation, S-N properties, formation mechanism of shear bands and underlying microstructural mechanisms.
The mechanical properties for CG and UFG samples were 232 and 438 MPa tensile strength, 65 and 13.5 % elongation, and Vickers hardness of 63 and 131 (load: 2.9 N), respectively.
The round-bar fatigue specimens (5 mm diameter) were electrolytically polished prior to mechanical testing to remove any preparation-affected surface layer.
the relationship between the reversible plastic zone (RPZ) size at the crack tip and microstructural factors for analyzing the growth mechanism of small cracks.

SiC reinforced aluminium based metal matrix composites are widely used in automobile, mining, mineral, aerospace, and other related applications due to their excellent combination of properties such as improved stiffness, reduced density, good corrosion resistance, improved high temperature properties, controlled thermal coefficient of expansion and enhanced electrical performance.
Discrepancies among the information reported so far on wear performance of composites may come from the large number of variables which can affect wear mechanism and wear rates.
The factorial portion of the CCD is the full factorial design with all combinations of the factors at two levels (low −1 and high +1) and composed of the eight star points and six central points which are the midpoints between the high and low levels.
The results of the multiple regression analysis and the significance of the factors are given in the Table 2 and 3.
The multiple regression equation generated using the full factorial table and the significance of the factors is given in the Table 5 and 6.

However, the thin film coating under vacuum atmosphere was interested, has been considerable interest in understanding the structural and mechanical properties of transition metallic nitrides as various technological applications in industry and engineering.
Furthermore, it is well known that most properties of these binary nitride TiN thin films are influenced by deposition parameters such as sputtering pressure, gases flow rate, deposition time and target-substrate distance directly certain factors effect to crystalline structure and micro-structure.
Chaochao, Tribological properties of the Ti-Al-N thin films with different components fabricated by double-targeted co-sputtering, Appl.
Pischow, J. de Rijk, Structural, optical and mechanical properties of coloured TiNxOy thin films, Thin Solid Films. 447–448 (2004) 449-454
Mielczarski, Properties of titanium nitride films prepared by direct current magnetron sputtering, Mat.

In spite of these benefits, TiNi alloy cannot be machined by traditional machining methods such as milling, drilling and lathe due to high hardness property.
Moreover, there are reported that these machining heat and internal stress affect SME badly.
To select the suitable EP condition, experiment was conducted with duty factor 0.5, IEG 1mm, and current density 5 A/cm2.
Above mentioned duty factor is on/off time ratio in pulse current and IEG is a gap between anode and cathode.
Also, IEG, which is one of the most important machining factors, is established 1mm through initial experiment.

As a result, a complex structure is formed in the welding or processing zone with division into the stirring zone, the thermomechanical affected zone and the thermal affected zone [7].
In the heat-affected zone, there are mainly processes due to the heating of the material around the welding zone.
In such a case, it is possible to determine which of the factors in the formation of the joint is decisive.
Andjelković, Mechanical behaviour of Al 2024 alloy welded by friction stir welding, IOP Conf.
Kolubaev, A review of friction stir processing of structural metallic materials: Process, properties, and methods, Metals, 10 (2020) 772

Surface structure is known to affect wettability.
Introduction Silicon nitrides are often used as ladles, stalks, heater element protection tubes, etc., in the metal casting industry.[1, 2] This is because silicon nitrides have good mechanical properties, high wear resistance, corrosion resistance, stability at elevated temperatures, low thermal conductivity, and low wettability for molten metals.[3 - 6] However, several problems remain, high cost being the most important one.
Improved insulation against heat transfer, lowered wettability for molten metals, better mechanical properties, further reliability, etc. are required.
R is a surface roughness factor, and R = (real surface area) / (apparent flat surface area) ≥ 1.
The initial and final condition of the surfaces, time-dependent reactions and corrosion, topological measurement between protrusions and metals, and the atmosphere, are among the factors that need to be investigated for a more strict scientific discussion.