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However, Because of their unique physical and chemical properties: high strength maintained at elevated temperature and low thermal conductivity, titanium alloys have poor machinability in grinding.
These are the main factors which affect the surface integrity.
TC18 and TA19 alloys with mechanical properties reported in Table 1 were utilized as the workpiece material in the grinding tests.
That is why TC18 alloy has much high strength and poor high temperature properties relative to TA19 alloy.
Heat-affected zone Heat-affected zone (b)TA19 (a)TC18 Fig. 5.

Waviness has little effect on thin composite materials while greatly affects properties of the large and thick composite structures [2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12].
Only one review upon effect of fibre waviness on the mechanical properties of unidirectional fibre composites has been finished by Piggott since 1995 [12].
In fact, these factors related with both waviness geometry and attribute are challenging for any manufacture method, seen in the following section.
Effect of Waviness on Properties of Composite Materials Effect of Waviness on Mechanical Performances Effect of waviness on mechanical performances was performed by many researchers [1, 3, 4, 5, 7, 8, 9, 12, 14, 15, 33].
Piggott, The effect of fibre waviness on the mechanical properties of unidirectional fibre composites: a review, Compos.

Introduction Nanoparticle-reinforced composite materials are employed widely in related to marine, aerospace, automobile, and construction industries for their outstanding mechanical properties [1].
In the present analysis, an attempt has been made to determine the factors affecting surface roughness during the machining of nanocomposites.
To build the experimental plan with three factors and four levels, Taguchi L16 was adopted.
The significant factors are feed rate followed by spindle speed.
[2] Arun G.K., Nikhil Sreenivas, Kesari Brahma Reddy, K Sai Krishna Reddy, Shashi Kumar M.E., Pramod R, Investigation on Mechanical Properties of Graphene Oxide reinforced GFRP, IOP Conf.

Mechanical properties were examined through hardness and tensile testing.
Alloying of the matrix was conducted to improve its mechanical properties and the quality of the cast metal.
This circumstance needs more study and analysis with various factors that influenced the bonding.
Regarding composite material, the volume fraction of the reinforced material affects its physical and mechanical properties.
The relationship between the volume fraction of reinforcement and the mechanical properties is stated as the Rule of Mixture (ROM), which demonstrates that increasing the volume fraction of the reinforced material improves the mechanical properties of the composite.

The formation of voids in the solder joints is one of the many critical factors that impacts solder joint reliability.
Voids may degrade the mechanical robustness of the solder interconnection and, consequently, affect the reliability and conducting performance of the solder joint.
Generally, the location and size of the voids are the key factors that influence the effect of voids on the performance and reliability of solder joints.
This option was combined with Multilinear Isotropic (MISO) hardening model using von Mises plasticity to represent the viscoplastic properties of the solder material.
The size, location, and number of the void affected the strength of solder joints, and especially, the number of void was the most affecting factor that degrades the joint strength.

This process is affected by parameters such as : pressure path, geometrical parameters of punch and die, friction between punch and sheet, etc.
HDD is affected by many parameters which include: pressure path, geometrical parameters of punch and die, friction between punch and sheet, etc.
For acquiring mechanical properties, tensile tests were carried out using DIN 50114 standard specifications.
To reduce the calculation time, a speed factor of 100 was used in the simulation [3].
‘‘Development of hydro mechanical deep drawing”.

Ni-based superalloys are extensively used in the manufacture of aircraft engine components because of their excellent heat-resistant and corrosion-resistant properties.
Laser welds, roughly 15 cm in seam length, were joined along the center of the joint using processing conditions which were selected using a Taguchi design of experiment methodology (with 3 factors and 2 levels), as indicated in Table 2.
The mechanical properties (ultimate tensile strength and elongation) of each welded condition were evaluated according to the ASTM standard E8M-01.
The tensile properties of the weld are better than those of base metals.
The results of the Taguchi analysis indicated that the tensile properties were not affected by the laser welding parameters investigated in this project.

Being a lightweight, durable and sturdy material, it shows excellent performance and superior properties in most applications.
Also due to these properties, aluminum production practically doubled between the 1960s and 1970s.
The matrix of the microstructure of the material is also decisive for the attainment of the mechanical properties.
The microstructure of the aluminum alloy obtained by, for example, casting must achieve the desired properties via heat treatment [5].
Some properties of aluminum can be obtained by adding some chemical elements, the so-called alloying elements.

A loss of mechanical properties was observed for the pre-corroded samples and presumably attributed to the absorption, the diffusion and the trapping of hydrogen which affects a volume under the surface of the alloy and modifies its mechanical properties.
The hydrogen effect during SCC tests was evaluated by measuring the residual mechanical properties of the alloy after pre-exposure to an aggressive environment.
Mechanical Properties of the 7046-T4 Aluminium Alloy.
The mechanical properties of the 7046-T4 alloy are given in Table 2.
The evolution of the mechanical properties after pre-exposure to chloride solution was linked to a change in the fracture mode.

However before mechanical analysis of the composite T-beam, mechanical parameters must be held and input[8-9].
The mechanical parameters are often determined by experiments, which cannot take the influence of concrete factors into account and cannot accurately reflect the factual circumstance.
Bayesian parametric back analysis estimation is a theory that when the conditional distribution of the measuring displacements and the pre-testing distribution are given, the statistical properties of mechanical parameters are the needed quantity only if the post-testing distribution gets its maximum.
And in fact, the convergence of mechanical parameters is not affected by the number of random variables when the method put forward in this paper is applied.
(2) The convergence property of mechanical parameters is not affected by the number of random variables