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After the EDM processing, the recast layer formed can cause degradation in the microstructure and mechanical properties.
During EDM, a recast layer is formed which can cause degradation in the microstructure and mechanical properties, which may affect the performance of the gimbal flexure.
Recast layer formed after EDM on M300 maraging steel flexure had been characterized for its composition, microstructure and mechanical properties as a part of this study.
Nanoindentation studies As the thickness of the recast layer was less than 5 µm, no technique other than nanoindentation can be used to evaluate its mechanical properties.
Both these properties showed little variation in the bulk material.

Ltd, Shanghai, China awhjeff@yeah.net, b*jhwang@whut.edu.cn, cjiyundong@whut.edu.cn, dxufenghao1981@soho.com, eyyzyan@163.com, fsunjiuxiao2006@163.com Keywords: Optical Fiber; Carbon fiber; Different Diameters; Mechanical properties Abstract.
Thus embedded OF will alter the stress and strain in the vicinity of the embedded OF, destroy the materials’ integrality and continuity in some way, and even may degrade mechanical properties of composite materials [2,3].
Lee et al [5] evaluated the effects of embedded OF (φ125μm) on the tensile properties of unidirectional and cross-ply E glass-exposy system, and their results also showed no significant difference in the tensile strength.
Jensen et al [7] have investigated the reduction in compressive properties caused by the incorporation of OF in a graphite/bismaleimide matrix.
The bigger the OF is embedded, the more it affects.

Characterization of Friction Modified Processing – a Novel Tool for Enhancing Surface Properties in Cast Aluminium Alloys Marek Stanisław Węglowski1, a, Adam Pietras1,b, Stanisław Dymek2,c and Carter Hamilton4,d 1Department of the Testing of Materials Weldability and Welded Construction, Institute of Welding, Gliwice, Poland 2Department of Resistance Welding and Environmental Engineering, Institute of Welding, Gliwice, Poland 3Faculty of Metal Engineering and Industrial Computer Science, AGH University of Science and Technology, Krakow, Poland 4Department of Mechanical and Manufacturing Engineering, Miami University, School of Engineering and Applied Science, Oxford, Ohio, USA amarek.weglowski@is.gliwice.pl, badam.pietras@is.gliwice.pl, cgmdymek@cyfronet.pl, dhamiltbc@muohio.edu Keywords: Friction Modified Processing, aluminium alloys, modelling.
The evaluation of the traveling speed affecting the mass of the modified material was successfully approximated by linear functions.
However, the torque is not significantly affected by the change in the travelling speed.
However, it is likely that an increase in temperature (and thus a decrease in flow stress) as the rotational speed increases is an important factor that would cause easier material transportation at the shoulder region and thus makes the volume of the processed material smaller.
Submitted to Archives of Civil and Mechanical Engineering (2011)

Heat generation due to frictional contact on seal-ring surfaces is a major factor that causes deterioration of face seals and shortens their service life[1,2].
Carbon is the most commonly used seal ring material because of its superior wear and corrosion properties.
Friction torque value reflects friction condition of the seal mating rings and is an important parameter that affects seal performance and service life of mechanical seals.
Face temperature rise of the mechanical seals is an important parameter in examining the friction condition between the seal faces.
It was found that compared with the untextured conventional mechanical seals, the friction torque and the face temperature rise of the laser-textured mechanical seals with micro-pores are much lower.

TiO2 nanosize particles have attracted significant interest of materials scientists and physicists due to their special properties and have attained a great importance in several technological applications such as photocatalysis, sensors, solar cells and memory devices.
TiO2 nanoparticles can be produced by a variety of techniques ranging from simple chemical to mechanical to vacuum methods, including many variants of physical and chemical vapour deposition techniques.
Factors affecting the sol-gel process include the reactivity of inorganic titanium salt, calcinations temperature, the influence of varying stirrer speeds on the formation of anatase particles, and the nature of hydrolytic solvent and peptisation reagent.
In addition, the performance measurement tool can also affect the DSSC performance measurement.

Parametric uncertainties of induction motors affect the control performance.
The main uncertainties are caused by slowly time-varying factors, which are thermal variations and load torque disturbances, in general.
The accuracy of the rotor resistance affects the orientation of current vectors with flux vectors.
It may reduce the torque and affect the output performance, or generate an incorrect flux level.
For verifying the stability of the observer and the estimator with the passivity theorem, passive properties of each block should be analyzed.

SPD can produce large strains and improve mechanical properties through grain refinement [4,5].
Kim et al. studied how the specimen thickness affects the material properties of Al6061-T6 material at rapid strain rates strain rates using the Split-Hopkinson pressure bar and finite element method (FEM).
The SHPB test is a dynamic mechanical testing methodology widely employed to characterize the stress-strain material properties under high strain rate conditions.
[2] Aynalem, G.F., 2020, Processing Methods and Mechanical Properties of Aluminium Matrix Composites, Advances in Materials Science and Engineering, 2020
Effect of Multi Directional Forging on the Microstructure and Mechanical Properties of Zn-24 wt% Al-2 wt% Cu Alloy.

Chemical composition and mechanical properties of the work material shown in Table. 1 and 2.
The material removal rate (MRR) was calculated using Eq.1 MRR=v.f.d *1000 (1) Table. 1 Chemical composition of Inconel 718 [Wt. %] Element Ni+Co Cr Fe Nb+Ta Mo Ti Al % 50-55 17-21 Bal 4.75-5.5 2.8-3.3 0.65-1.15 0.2-0.8 Table. 2 Physical and Mechanical Properties of Inconel 718 Density (kg/m3) 8080 Thermal conductivity (W/m/ 0C) 10.5 Specific heat (J/Kg/) 515 Modulus of rigidity (kN/mm2) 77.2 Modulus of elasticity (kN/mm2) 204.9 The cutting tool used uncoated carbide SNMG 438 type, was clamped onto a tool holder with a designation of PSBNR 25x25 M12.
(5) Where dG is the individual desirability of the property Yi, wi is the weight of the property Yi in the composite desirability and W is the sum of the individual weight.
The process parameters significantly affects the responses can be determined by using ANOVA method.
· Cutting speed is the most significant parameters affect the responses followed by feed rate, depth cut and preheating temperature

The factors to influence the surface morphology, the surface quality and the surface roughness are analyzed in order to take measures to improve the surface quality and reduce the surface roughness value.
The factors to influence the surface morphology, the surface quality and the surface toughness are analyzed in order to take measures to improve the surface quality and reduce the surface roughness value.
Two typical hard-brittle materials silicate glass and Si3N4 are used, the properties are shown in Table 1.
But the polishing quality of the surface is affected by many factors, such as the performance of the material itself, the material defects, the surface state before polishing in addition to the polishing technology.
Friction factors in smooth trapezoidal silicon microchannels with difrerent aspect ratios, International Joumal of Heat Mass Transfer. 2003. 46: 25 l 9-2525

Therefore, the properties of the component’s subsurface are of outstanding importance [3, 4].
These properties are considerably influenced by the applied machining procedure.
Several studies have shown that for aluminium an improvement of material properties can be achieved by mechanical surface hardening.
They comprise at first knowledge about influencing effects of the single processes on the subsurface under variation of process factors.
The decision on suitable process combinations is based on these workpiece properties.