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This paper discusses the state of knowledge regarding Cr release, the chemical and mechanical factors that most significantly affect Cr release, and the potential toxicity of Cr as it applies to longterm implantable medical devices.
The corrosion of implants can be influenced by numerous factors that may not be completely accounted for in a simple thermodynamic analysis.
Merritt and Brown have noted that the inflammatory response of tissue to an implant, and infection, may lower the pH; hence, increase corrosion, as well as affecting the metal binding to proteins in the serum, synovial fluid, and cells [1].
Body cells can affect alloy corrosion in the body by changing the local chemical environment.
Lin et al. also noted that macrophage cells lower local tissue pH and release RCS, such as NO, H2O2, and O 2 during wound healing and tissue remodeling which may alter alloy surfaces and affect CoCrMo alloy's corrosion properties.

The harmful mechanical vibrations during the operation of mechanical manufacture are known to seriously reduce the machining precision and production efficiency even more destroying the whole manufacturing system.
Wang et al. investigated the mechanical properties and macro/micro morphological structure of woodpecker's head using a mechanical testing system and micro-CT scanning, and established a finite element model of the woodpecker's head to study the dynamic intracranial responses [4].
The two parameters are affected by environmental temperature and excitation frequency.
It can be seen from Fig. 5 that there is an incremental impact of frequencies on characteristics of storage modulus, loss modulus and loss factor.
The value of the loss factor increases with increased frequency, then the value keeps invariable after reaching certain extent.

So, one of the important problems we need to pay more attention on is the main factors affecting the strain-hardening exponent and the influence rule.
Relationship Between Microstructures and Mechanical Properties of Strain Based Design X80 Pipeline Steel [J].
Effect of Yield Ratio on Properties of X80 Steel [J].
Influence of Dual-Phase Microstructures on the Properties of High Strength Grade Line Pipes [J].
Fatigue properties of X80 pipeline steels with ferrite/bainite dual-phase microstructure [J].

The printability, physicochemical, and mechanical properties of the PP-NPCC blends were determined.
Among the impressive properties of PP are its chemical resistance, good mechanical properties, lightweight, and bacterial resistance properties, making it ideal for medical applications.
It was observed that the humidity and build plate adhesion were two of the main factors that can reduce warpage during 3D printing.
Mechanical Properties.
The mechanical properties of PP and PP-NPCC composites are shown in Figure 5.

It can change the surface properties of the material and play the role of electromechanical, thermodynamic, optical properties and others in preventing corrosion and improving wear resistance.
Table 2 shows the orthogonal experiments in 4 factors and 4 levels for Ni-W-P/ graphene composite coatings.
Table 2 Results of orthogonal experiments in 4 factors and 4 levels for Ni-W-P/graphene composite coatings experimental No.
Kysar, et al, Measurement of the elastic properties and intrinsic strength of monolayer graphene, Science. 321 (2008) 385-388
Li, Microstructure and properties of Ni-W-P/graphene composite coatings by electrodepositing.

The related engineering factors were reduced by Rough Set theory and the main factors of the drilling process were obtained.
So when the fault symptoms become more, it will greatly increase the processing time of the system, thus affecting the efficiency of fault diagnosis, which happens to be the advantage of RS theory.
is a finite non-empty set, called domain. ,, is the collection of properties. , are the condition attributes and the decision attributes.
According to the study of Vapnik, the selection of the kernel function has little relationship of the SVM performance, while the parameters of the kernel and the error penalty factor C are the main factors affecting the SVM performance[6].
Mechanical Systems and Signal Processing, 2007, 21(6): 2560-2574

An in depth understanding of the mechanical properties of pharmaceutical materials is crucial when attempting to predict compaction behavior as well as the final properties and quality of the compact [4].
In tablet compaction Canonical Correlation Analysis can be employed to examine the relation between processing factors or material properties and mechanical performance [62, 63].
In Bohidar’s paper, material properties (X variables) and mechanical performances (Y variables) were studied by Canonical Correlation Analysis.
This shows that these three variables can also serve as important material properties controlling the mechanical performances of MCC.
It should be emphasized that many factors must be considered when investigating compaction characteristics of powder blends.

The advantage of composites is possibility of tailoring of mechanical properties for a specific application or use.
The final composite properties are associated with volume filler fraction, particles and matrix properties, etc.
Moreover, significant factor affecting the estimation of residual lifetime is related to the subcritical crack growth (SCCG) phenomenon [8].
Under applied stress, defects (i. e. micro-cracks) may grow (sub-critically) for stress intensity factors (KI) below the fracture toughness of the material (KIc).
The various volume filler fractions and loading values were considered and the stress intensity factors KI and KII were determined.

Molecular dynamics simulation has been performed to explore the structural and dynamical properties of undercooled Cu50Co50 melt based upon the embedded atom method (EAM), namely due to Zhou.
And the Bhatia-Thornton (B-T) structure factor gets the same result.
Our work discusses that the relationship between the properties and L-L phase separation in undercooled liquid of Cu50Co50.
The purpose of the present work is to provide theoretical estimation of structural and dynamical properties of undercooled Cu50Co50, and explore its degree of liquid phase separation related to the typical phase separation alloy and the parameters that are affected by the degree of phase separation size based on them.
Conclusion MD simulation has been performed to explore structural and dynamical properties in undercooled condition based upon EAM energetic and interatomic forces.

As a result of the explosion welding, residual stresses are generated in the cladded material which can affect the properties of the bimetallic composite.
One solution combining high strength, good corrosion resistance and a relatively low production cost is to use composite materials, which take advantage of joining a cheaper material of excellent mechanical properties with an expensive material with good protective properties [1-3].
As a result of the explosion welding, residual stresses are generated in the flyer material [4,5] which can affect the properties of the bimetallic composite.
The chemical composition of materials is shown in Table 1 while mechanical properties are presented in Table 2.
Mechanical properties of basic materials, as per the supplier's certificate.