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Tensile strength and Vickers hardness tests show that the steels with 2% of Si exhibit higher mechanical properties.
The differences caused on the oxidation behaviour and mechanical properties by the modification of the composition of the ferritic powders and the sintering atmosphere used are studied.
The mechanical properties of the materials (Fig. 3) are conditioned by the differences in the porosity and the grain size, and by the solid-solution hardening effect of the Si.
The 434L+2%Si stainless steels could have a decrease somewhat lower on their mechanical properties after oxidation that the 434L steel, but the differences found are not meaningful at all (Fig. 9).
 H2-sintered 434L+2%Si steels have higher mechanical properties than plain 434L steels processed in the same conditions, but they suffer higher mass gains at high temperature

There are many rockburst factors, and by the mining process and mining, its leading factor was difficult to be determined during mining.
Energy theory, when the orebody-wall rock system Mechanical equilibrium has been broke, the releasing energy was greater than the consumed energy, the rockburst happed.
Impact tendentiousness theory, The theory holds that the rockburst was not only related to external conditions, but also was related to the physical properties of the coal and rock.
Three - factor theory, The theory is that rockburst occurred coal strata force the stick-slip process at the moment, It is a releasing kinetic energy process that coal seam and rock seam glided suddenly, Which concluded the three-factors mechanistic model[3,4].
Affected by the coal seam dip, Stress concentration area along the seam tilt direction was 10 meter to 30 meter because stable supporting strip was formed by mined above stage.

In particular, the relationship between the material production route, its chemical and phase composition and microstructure on one hand and its numerous properties on the other hand as well as various factors affecting the efficiency of applied advanced technologies was dealt with.
The emphasis was paid to nanostructures and to properties determined in nano- and/or micro-scale dimension.
As a result of them a wide range of advanced materials and technologies is described in terms of most relevant problems which affect their application.
D., Professor TUL Head, Division of Coatings Engineering Institute of Materials Engineering (IME) Faculty of Mechanical Engineering Technical University Lodz Stefanowskiego St. 1 90·924 LODZ POLAND Tel +48 426 312 265 Mob +48 501 29 29 22 Fax +48 426 366 790 E-mail bowe@p.lodz.pl Web site of IME: http://www.p.lodz.pl/IIM.htm 2.
Materials Engineering Dean of Mechanical Engineering Faculty of the Technical University Lodz Stefanowskiego St. 1 90·924 LODZ POLAND Tel +48 426 312 265 Mob +48 501 29 29 22 Fax +48 426 366 790 E-mail piokula@p.lodz.pl Web site of IME: http://www.p.lodz.pl/IIM.htm 3.

So far there are not prediction models of polishing process considering these complex factors above.
The researches on the main factors affecting the material removal rate focus on load, rotary speed and polishing liquid ingredients, but rarely on the evolution of workpiece surface profile and the reasons.
The element type is plane182 and the mechanical properties of the materials and other related parameters are shown in Table 1.
Fig. 2 A two-dimensional quasi-static model for the polishing process Table 1 Model parameters Parameter Value Mechanical properties of polishing pad Ep [MPa], u p 6, 0.1 Mechanical properties of workpiece Ew [MPa], u w 55000, 0.25 Mechanical properties of polishing head Ec [GPa], u c 200, 0.3 Thickness of polishing pad hp [mm] 2 Thickness of polishing head hc [ mm] 8 Polishing pressure P [psi] 1 Workpiece diameter D [mm] 100 Results and Discussion Hard Polishing Pad.
In addition, there is a difference between the analyzed result of the finite element model without considering the viscoelastic material properties of the polishing pad and the actual contact pressure on the edge and center area [8].

Such effects are changing the electrical as well as the mechanical properties which will in detail be a subject of future work.
In general, the influence of the mechanical properties on the resonance behavior is mainly depending on the Young’s modulus of the respective layer as well as preloaded strain [7].
A change in one of these parameters directly affects the quality factor and thus the sensitivity of the sensor [8].
The observed change of the Sc2p binding energies with respect to N1s is directly affecting the Young’s modulus [7] and hence the lattice phonons.
Bechstedt, Properties of strained wurtzite GaN and AlN: Ab initio studies, Phys.

Based on these experiments, influences on welding quality induced by those factors are analyzed.
Introduction Ultra-thin Titanium foil, characterized by low density, high specific strength, high corrosion resistance, non-magnetic properties, is an excellent structural material.
Work-pieces are welded using high energy dense micro-plasma arc which is affected by mechanical compression, thermal contraction and electro-magnetic compression.
Effects of those factors are discussed respectively as follows.
Amount of lap is an important factor affecting welding quality when welding heat input is constant.

The main factors affecting the pattern of formation of detonation coatings are heating, melting (full or partial), deformation and spreading of particles on the surface.
Cross section of coatings after thermal annealing: a) 700 °C, b) 800 °C, c) 900 °C One of the main factors determining the quality of the coating, affecting the duration of the work, is adhesion.
EL-Raghy, Processing and mechanical properties of Ti3SiC2, J.
Watanabe, Mechanical properties of Polycrystalline Ti3SiC2 at ambient and elevated temperatures, Acta Materialia. 49 (2001) 937-945
Barsoum, Microstructure and mechanical properties of porous Ti3SiC2, Acta Materialia. 53 (2005) 4359-4366

Wood modification, which results in water intake reduction and also serves to maintain the low equilibrium moisture, may significantly improve the properties of wood, reduces the caused volumetric changes and extends its durability.
Increased intake of water in liquid or gaseous state negatively affects other physical - mechanical properties and durability [11, 12].
Possibilities of Wooden Modification Wood resistance to attack from biological and abiotic factors is increased by chemical protection, when used chemical agent does not change material structure.
Biological resistance is not affected
La Bayon, The potential of silicone-based formulations to enhance wood properties through industrial treatment for outdoor use, The International Research Group on Wood Protection, Stockholm, 2011

Mechanical and Tribological Properties of the Composition “Steel - nanostructured Surface Layer of a Material with Shape Memory Effect Based TiNiCu” Zh.M.
Special tribological properties are possessed by the most well-known and wellregarded nikelid titanium, based on the intermetallic compound TiNi, which has damping properties, the ability to provide high resistance to friction sliding bearings and corrosion-erosion effects [3].
Analysis of the results of studies on the influence of operational factors on the wear resistance and fatigue characteristics of TiNi is given in [4].
Based on comprehensive research metallophysical defined mechanical properties of the surface layer TiNi (microhardness ranges Hμ = 8,2÷11,8 GPa, TiNiCu-layer within Hμ=10÷13 GPa), phase composition, which determines the functional properties (Fig. 2b) transformation temperature (TiNi: Мf=285K, Мs=359K, Аs=361K, Аf=375K; TiNiCu: Мf=298K, Мs=308K, Аs=324K, Аf=338K).
Investigation of tribological properties of NiTi.

The interest in the use of these alloys is since they combine a very low density, lower than the Ti6Al4V alloy typically used in these applications, and exceptional mechanical properties at high temperatures.
Titanium aluminides can be described as Ti-(42÷49)Al-(0.1÷10)X, with X standing for alloying elements such as Nb, Cr, V, Ta, Mo, Zr, W, Si, C, and B, added to improve their mechanical properties [10,11].
Lubrication strategy is also a factor heavily affecting the wear mechanism and tool life because it reduces mechanical wear such as the abrasion on the tool rake face [32, 33, 35, 40, 44].
Surface integrity The integrity of the machined surface is the result of several factors associated with the milling process of titanium aluminides such as technological parameters, geometry and wear of the tool, as well as the properties and microstructural changes of the workpiece material.
According to the reviewed papers, surface roughness shows dependence on the process parameters, among which cutting depth was the most significant factor affecting it, followed by feed rate and cutting speed [41, 44].