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Introduction T91 steels (ASME SA-213T91/P91), as a representative type of high Cr ferritic heat-resistant steels, has been recognized as the preferable materials and widely used in high-temperature structural components such as header and main steam pipe in advanced power plants due to the good high-temperature endurance, creep resistance properties, excellent heat conductivity, low thermal expansion coefficient and high performance-cost ratio [1-4].
Thus, a considerable amount of experimental work has been performed on the understanding of the evolution of microstructure, mechanical properties, and strengthening mechanism of T91 steels [5-7].
Austenitization process plays an important role in steels since it affect the final microstructure of the sample and, consequently, the mechanical properties of material.
Therefore, it is primarily important to understand the kinetics of nucleation and growth in the process of austenitization for the adjustment of the microstructure and thus the tuning of the properties of materials.
Fresh specimens were used for each dilatometric measurement cycles, to ensure that for each measurement the specimen had the same initial structure and thermal/mechanical history.

b) Microscale and nanoscale coating of hydroxyapatite/calcium phosphate/alumina coatings with bioactive molecular cues, osteoinductive growth factors and antibacterial drugs, (c) Organic nanoscale Self Assembled Monolayers (SAMs) with chemically linked biomolecular cues, osteoinductive growth factors and drugs, (d) Bioactive, biodegradable hydrogels with incorporated biomolecules and osteoinductive growth factors, (e) Antibacterial agents or antibacterial drug delivery directly from titanium surface to decrease primary bacterial adhesion and prevention of biofilm formation and to reduce the risk of peri implantitis-induced implant failure.
Surface properties of endosseous dental implants after NdYAG and CO2 laser treatment at various energies.
Surface properties influencing biological adhesion, in Adhesion in biological systems, M.R.
Antibacterial properties of silver-doped titania.
Incorporation of growth factors into medical devices via biomimetic coatings.

In this study, the effects of friction on tensile properties, microstructure and strain distribution of commercially pure Al sheets were investigated using experimental and numerical methods.
Introduction Ultra-fine grained (UFG) materials obtained through severe plastic deformation (SPD) are of great importance due to their unique mechanical and physical properties [1].
Since originally proposed by Shin et al. in 2002, CGP has been successfully used for grain refinement and mechanical property improvement of various sheet metals and alloys [2-5].
Results and discussion Tensile properties.
Fig. 1 shows the variation of tensile properties of pure Al with CGP pass.

But in reality, many factors affect the machining efficiency and precision, including both structural parameters and processing parameters, the external environmental factors.
In high speed motion, the centrifugal force, inertial force and heat factors become an important factor affecting the accuracy.
On the other hand, the machine running rule is no longer a simple linear superposition of each functional module because of the complex relationship of each functional unit and the rising movement control system function, and many factors can affect the machining precision and the safe operation of equipment.
And in the process, many factors influence the machine tool's dynamic performance, such as certain parts of machine tool’s elastic deformation, and these basic parameters unknown before processing.
So before the actual processing, the CNC equipment dynamic properties should be monitored in machine in the simulated conditions to provide the basis of parameters selection and directional indicator for correct using of machine, such as the selection of appropriate tool and spindle speed for avoiding forced vibration; the selection of appropriate processing parameters for avoiding self excited vibration.

., Ltd, Tianjin 300457, China amazhixin918@vip.qq.com Keywords: Al2O3; AlN; Al5O6N; thermal conductive ceramics Abstract: Aiming at the preparation problems of Al2O3+cordierite+AlN composite ceramic, the experiment emphatically investigates two influencing factors both the addition of cordierite and Al2O3 and sintering process parameter.
Small amounts of Al5O6N distribute dispersive in the boundary of Al2O3+AlN solid solution which affect the thermal conductivity of the composite ceramic.
Effect of Al2O3 Addition on Preparation and Properties of AlN-Al2O3 Multiphase Ceramics, Journal of synthetic crystals,39(2010)1422-1428
Preparation and Characterization of Aluminum Oxynitride Nanpowder, Mechanical management and development,24(2009) 13-15
Optical and mechanical properties of highly transparent spinel and AlON domes, USIKANT S Sed.

Furthermore, on the basis of studying on the influencing factors of flexible three-dimensional microstructure’s dimensional stability, it can be proved that the present method has important application value for improving the manufacturing quality of the flexible three-dimensional microstructure.
During the process of repeated positioning based on image vision measurement, the printing accuracy of three-dimensional microstructure is influenced by several reasons, which will make the actually position deviated from the ideal position, such as the image noise error, the quantization error, and the image distortion of the cross-circle caused by that the flexible materials are not smoothly, the optical properties are inconsistent or the flexible deformation is appeared.
The unevenness distortion error of imaging plane is due to the unevenness of flexible substrate materials, for example, the flexible materials are not smoothly, or the optical properties are inconsistent or the flexible deformation.
At first, the unevenness of imaging plane brings out the image distortion, and then affects the angle of incident light in the imaging process.
Fourthly, the initial position of center is only related to the matching start, but it cannot affect the final position.

Especially in state-of-the-art ICs containing mechanically sensitive low-K dielectric materials, controlling the mechanical properties of the free air ball (FAB) is of utmost significance due to chip damage risks during the bond process.
Even though this technology is well-established since many decades, there are new trends in technology which increase damage risk during wire bonding and show a lack in understanding the process affected material properties of the bonding wires and their resulting effects.
Both factors also increase the demands on wire bond interconnection.
Up to now, the free air ball properties are unknown.
So, the mean grain size is the dominating factor for defining initial yield stress and the presented methodology can be used for the determination of quantitative useful material properties for finite element simulations.

Many factors can alter the mechanical properties of rubber.
Especially, because of the viscoelastic nature of rubber, their mechanical properties depend significantly on strain rate as well as temperature.
However, it is technically difficult to obtain accurate mechanical properties under the high strain rate loading conditions.
The SHPB technique has been continually modified to determine the dynamic properties of a variety of engineering materials such as metals, concrete, ceramic, polymeric and rubbers [2,3].
After the rubber specimens are heat-aged, physical and chemical properties are likely to be changed.

Experimental results Mechanical properties.
Besides, the percentage variation of the mechanical properties is reported in Table 3.
We could conclude that aging affects only the FRP mechanical properties and not the FBG optical properties, also not reducing the interfacial FRP-FBG adhesion.
After producing specimens, mechanical and metrological tests have been performed, in order both to characterize the device and to evaluate if the presence of the sensor could affect its mechanical properties.
At last, accelerated aging does not influence FBG sensor optical properties while it reduces FRP mechanical properties.

It is sometimes very difficult to define a reliable FE model for real mechanical structure, because a lot of its system parameters or properties are uncertain [10].
Particularly, in the case of FE analysis, the mechanical properties of the used materials are very hard definable, and therefore an important source of uncertainty [11].
The uncertainties in the model parameters can be taken into account by representing the affects of scatter by fuzzy numbers with their shape derived from statistical data.
Due to this numerical approach, we can analyze mechanical, technological, service and economic properties of the investigated structures more authentically.
Vaško: Analysis of the Factors Influencing Microstructure and Mechanical Properties of Austempered Ductile Iron.