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However, compared to the mechanical properties of natural bone, HA ceramics need improvement [2, 3].
Thus, since nickel-free austenitic stainless steels seem to have better mechanical properties, corrosion resistance and biocompatibility compared to 316L stainless steels [9], it is possible that composite made of this steel and HA could have improved properties.
The purpose of this paper is to report on the processing as well as mechanical properties and corrosion resistance of the nickel-free austenitic stainless steel/HA nanocomposites.
Nitrogen in solid solution is the most beneficial alloying element in promoting high strength in austenitic steels without affecting their ductility [11].
That improved properties combined with excellent biocompatibility of HA could help to obtain better biomedical implants with better mechanical properties, corrosion resistance and biocompatibility.

The changes of the microstructure and mechanical properties were experimentally investigated on S1100M high strength structural steel.
This rapid cooling helps lock in the desired shape and can influence the mechanical properties of the metal.
The effectiveness of flame straightening hinges on several factors, including the type of steel being treated, the duration of heating, and the cooling method employed.
These transformations are crucial, as they influence the overall mechanical properties of the materials involved.
The chemical composition of the investigated base material is summarized in Table 1, while Table 2 shows the mechanical properties.

Keywords: Aluminum alloys, high temperature, mechanical properties, simulation.
The mechanical properties of Al alloys are strongly affected by their microstructure: the size and shape of precipitates, their homogeneous distribution and their coherency with the matrix are of primary importance for an effective strengthening of the alloys at room and elevated temperatures.
Physically-based models are powerful tools to predict the influence of the mentioned parameters on the mechanical properties of the alloy after age hardening, and also to predict the effect of high temperature service conditions on microstructure evolution.
All these parameters influence strongly the mechanical properties and, in particular, the yield stress of the alloy [1].
Ripamonti, Microstructural stability and related mechanical properties of a Al-Cu-Mg-Si alloy, Aluminum alloy, their Physical and Mechanical Properties, 1 (2008) 1062-1067

The results show that the mechanical properties of MKG films can be enhanced through proper modification.
But its application as degradable film is hindered by its mechanical properties.
Various methods are used to improve its mechanical properties through chemical modification of KGM.
The influences of preparing conditions on mechanical properties of MKG.
The levels of test factors were listed in table 2.

The fiber-matrix interface properties usually strongly affect the properties of fiber-embedded composites.
For example, interface bonding strength is one of the key factors affecting the strength of a composite.
For example, a high interface sliding strength is one of the key factors for the toughening of a fiber-embedded composite.
Results and Discussion Interface Properties.
The effects of their fiber-matrix interface properties on the mechanical and repair properties of the composites were evaluated.

The failure of the underframe is one of the most important factors affecting the service life of the multi-function chassis.
Underframe performance directly affects the performance and life of the multi - function chassis.
The reason of its failure is related to many factors, including the mechanical properties of materials, load properties, stress state, the shape and size of parts and so on.
Fig. 1 3D model Fig. 2 Finite element mesh, constraints and load Static strength analysis In static strength analysis, The underframe material selected is the Q235A, material properties according the Young’s modulus is 2.1x105 N/mm2, Poisson’s ratio is 0.3, and density is 7800 kg/m3.
Mechanical Design.

The relevant mechanical properties of materials is analyzed to predict the macroscopic stress distribution, residual stress and other parameters, which realized the simulation of micro-macro properties and the analysis of toughening mechanism of the material.
However, because the form mechanism of residual thermal stress is quite complicated and it is affected by a lot of factors, there is not enough comprehensive understanding on the residual thermal stress so far.
Generally speaking, the residual thermal stress in material is influenced by distribution of the second phase, the particle size, the volume content, particle size ratio, and many other factors.
Al2O3/TiB2 is chosen as material and its properties is shown Table 1.
The volume content of the second phase can greatly affect the residual thermal stress, the simulation result shows that there exist an optimal value of second phase which is much beneficial for reinforcement of the mechanical properties.

The researches of damping capacity on storage modulus , loss modulus and composite loss factor through microscopic and macroscopic analyses of mechanical properties, thermal stability and internal friction had proved the mechanism of damping capacity [5, 6, 7].
Mechanical properties of viscoelastic material under salt fog environment Time (d) Tensile strength (MPa) Elongation at break(%) Tear strength (N·mm-1) Hardness (Shore A) 0 1.31 939.99 5.58 18 30 0.93 904.2 4.76 13 60 0.88 824.76 4.21 11 90 0.79 768.79 3.88 11 120 0.72 774.25 3.53 9 Mechanical Properties.
The mechanical properties of viscoelastic material were shown in Table 1, after 0-120days under salt fog environment, the mechanical properties were deteriorated by aging time.
Combining with results of mechanical testing, the mechanical properties of viscoelastic material declined gradually, the tensile strength decreased 39.70% and the tear strength decreased 18.21%, which illustrated that the mechanical properties and composite loss factors of constrained damping structure had the same trend.
The results show that, the mechanical properties of viscoelastic material were significantly affected by salt fog.

This paper deals with the analysis of the structural and mechanical behavior properties of the core, adhesive and faces, for sandwich composite polymeric products.
However, faces will have their mechanical properties substantially altered by the polyester resin with hardener that is used for bonding them to the sandwich core.
Table 3: Technical date of SikaForce 7718 L30 Properties Comp.
Structural interdependence of the mechanical properties of cutting machinability A sandwich structure composite polymeric consists of several types of materials, each having different mechanical properties.
Conclusions Machinability of sandwich structure composite polymeric involves a close interdependence with the mechanical properties of the whole structure.

The influence of energy density on the mechanical properties of parts is determined.
Despite all their advantages, their use is limited by specific thermophysical and mechanical properties.
All these factors decrease economic efficiency of traditional methods for products manufacturing of titanium alloys, so it is necessary to introduce new highly efficient processes for obtaining parts.
For determining of mechanical properties the samples were tested on uniaxial tension, using universal testing machine Zwick/Roell Z250 Allround.
Mechanical properties of samples produced DLD with modes 1 and 2.