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Effect of laser surface melting on structure and properties of a high speed tool steel Mirosław Bonek a, Grzegorz Matula b, Leszek A.
The structural mechanism was determined of surface layers development, effect was studied of alloying parameters, gas protection method, and thickness of paste layer applied onto the steel surface on structure refinement and influence of these factors on the mechanical properties of surface layer, and especially on its hardness, abrasive wear resistance, and roughness.
The powder metallurgy and especially employment of newer and newer forming methods, as well as modernisation of those existing so far, have led to the significant lowering of the manufacturing costs maintain very high mechanical properties of the sintered materials.
This phenomenon is the reason for the super-fast phase transformations affecting the structural mechanism of forming the surface layers subjected to laser treatment.
The best mechanical properties, including hardness and microhardness, were obtained for specimen alloyed with the 1,7 kW laser.

Preparation and Properties of Antistatic SMS composite Nonwovens Weimin Kang1,a , Jing Yan1,b, Bowen Cheng*2,c 1School of textiles, Tianjin Polytechnic University, 300160, Tianjin, China 2State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin, 300160, China akweimin@126.com, byanjing_515@163.com , cbowen@tjpu.edu.cn *corresponding authors Keywords: SMS composite nonwovens, Antistatic, Mechanical properties, Moisture permeability.
For example, Torsten offered a interesting approaches for preparation the textile materials with antistatic properties[4].
This method does not affect the SMS property, but the antistatic property will descend by and by; (2) Blending raw material slices with antistatic slices.
Results and discussion Mechanical property.
SMS drapability meaning the property of nonwovens dropping by dead-weight is an important factor to reflect their comfortability.

The machining of WC-Co is also affected by various factors such as the cobalt content and grain size and presence of other carbides.
In contrast to metallic alloys, each material retains its separate chemical, physical, and mechanical properties.
Properties and applications of WC-Co composite materials Cemented tungsten carbide has excellent mechanical properties such as high strength, high hardness, and high toughness.
Taper angle, Pulse-on-time and Pulse-off-time were found to be the most significant factors affecting the MRR.
Due to this, changes in their mechanical properties occur in the EDM machined material.

When the densities were increased, the mechanical properties also increased.
Utilization of sawdust can be one of the helping factors in adding more types of composite panel product as a new source of material for wood based industry.
It showed that the density was affected by the strength properties of the panel.
The density can affect the strength properties of the composite.
Conclusion From this study, it can be concluded that the homogeneous particleboard composite demonstrated better mechanical properties.

In the case of tensile test results, results for both specimens were very similar, and the obtained mechanical properties were of almost identical values.
Again, these mechanical properties corresponded to the expected range of values for the filler material, VAC 65.
The next stage involved determining of heat affected zone mechanical properties, based on hardness results.
Crack length vs. number of cycles curve (left) and stress intensity factors (right), model 5 HAZ Figure 7.
Kuki: An Evaluation of Mechanical Properties with the Hardness of Building Steel Structural Members for Reuse by NDT, Metals, Vol. 6, 2016

SIF was calculated using virtual crack closure technology and compared to evaluate effects of patch geometrical parameters on mechanical properties of repaired structure.
Patch geometrical parameters are crucial to composite patch adhesively bonded repair, which decides mechanical properties of repaired structure.
Properties of aluminum plate, adhesive and composite patch are shown in Table1-Table3.
Both factors make big bending normal stress on the unrepaired side when loading.
And then effect of patch geometrical parameters on mechanical properties of repaired structure is analyzed with virtual crack closure technology.

Effects of Cooling Conditions on Mechanical Properties and Wear Performance of JIS S45C Steel Coated by Wire Arc Spray M.
This steel is of suitable properties, and its properties can be further improved [1].
The specimens' mechanical properties and wear resistance were then studied to determine the effects of cooling conditions on mechanical properties.
The tensile strength of SN, SCCW, SCCO, SCCS and SCCNT specimens was determined using Universal Testing Machine 2.5 KW to study the effects of cooling conditions on mechanical properties.
Research of [14] as the tribological properties of Co-Ni-P coatings the highest microhardness of 602 ± 15 HV selfsame Point 3-5 which were the areas between Nickel Aluminium coating layer and AISI S45C steel were the heat-affected zones (HAZ) exposed to heat up to 1700 °F.

The results demonstrate that with the extension of temperature and treatment time, the adsorption properties of modified activated carbon were then decreased overall trend.
Lagergren adsorption rate equation with primary and secondary adsorption rate equation and the average absolute deviation from the rate on the adsorption properties of these factors affects the processing; secondary adsorption kinetics model was found to better describe the various factors affecting the adsorption process under conditions.
Li Yue, LiXiangzhou [6], respectively, with nitric acid, sulfuric acid and nitric acid plus copper acetate solution for surface modification of activated carbon were measured their surface chemical properties, studied the adsorption properties of modified activated carbon for Cr(VI) in the affected.
Granular activated carbon (see Table 1 below properties), citric acid, iodine, 95% ethanol, sodium hydroxide, potassium permanganate, K2Cr207 stock solution and nitrate.
Thus, the secondary adsorption kinetics model can better describe the adsorption process under conditions of various factors.

STRUCTURE AND MECHANICAL PROPERTIES OF 1.4539 AUSTENIC STEEL JOINTS MADE BY TIG AND LASER-BEAM WELDING Zdzisław BOGDANOWICZ1, a, Barbara NASIŁOWSKA1, b *, Paweł JÓŹWIK 2,c, and Dariusz ZASADA 2,d 1 Military University of Technology, Faculty of Mechanical Engineering, Kaliskiego 2, 00-908 Warsaw 2 Military University of Technology, Faculty of Advanced Technology and Chemistry, Kaliskiego 2, 00-908 Warsaw a zbogdanowicz@wat.edu.pl, b nasilowska.barbara@gmail.com, c pjozwik@wat.edu.pl, d dzasada@wat.edu.pl Keywords: 1.4539 austenitic steel, welding, laser, TIG, mechanical properties, fatigue Abstract.
This paper presents the analysis of structural research, micro-hardness and fatigue properties of the base material which is 1.4539 steel and joints made with CO2 laser beam and TIG method.
Despite quite wide range of usage, the publications about properties of this material are very limited [1-5].
Research of mechanical properties on welded joints The mechanical properties of 1.4539 austenitic stainless steel samples and TIG weld and laser weld were set on the INSTRON 8502 testing machine (Table 1) in accordance to PN-EN ISO 6892-1:2010.
  (3) Calculation range of elastic - plastic method for a predetermined number of cycles can be calculated from the formula: (4) where: - partial safety factors taking into account the uncertainty associated with the response to the load (-1.5 adopted by Lubinski [8]) and change the properties of the material within the joint.

Effect of Electron Beam Welding on the Microstructure and Mechanical Properties of Low-Cost Titanium Alloys S.V.
Specifically, titanium has the highest mechanical properties in relation to its density among structural metals, excellent corrosion resistance, good biocompatibility (bio-inert) and maintains its mechanical properties at relatively high working temperatures [3-5].
Mechanical Properties The mechanical properties of welded joints (Table 2) of low-cost titanium alloy Ti-2.8Al-5.1Mo-4.9Fe obtained by EBW, allowed to conclude that the lowest values of strength are obtained in sample #6.
Kim, Mechanical and Oxidation Properties of Ti-xFe-ySi Alloys, Materials Science and Engineering A 328(1-2) (2002) 161-168
Effect of TIG-welding on the structure and mechanical properties of the pseudo-β titanium alloy VT19 welded joints.