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The suitable range can guarantee excellent rheological properties and stability of SCC mixture.
The high rheological properties are the most prominent feature.
Some scholars at home and abroad studied the influence on rheological properties of SCC of various factors in different degrees, and many results were achieved.
There is significant influence on the rheological properties of SCC.
Fresh and hardened properties of self-compacting concrete.

Experimental investigations on machining Micro Alloy Steel (MAS 38MnSiVS5) using K 20multi coated carbide insert Subramani Muniraj1,a* , Nambi .Muthukrishnan2,b 1 Assistant Professor in Automobile Engineering Department, Sri Venkateswara college of Engineering, Pennalur, Sriperumbudur – 602 117, Tamil Nadu, India 2 Professor, Department of Mechanical Engineering, Sri Venkateswara college of Engineering, Pennalur, Sriperumbudur – 602 117, Tamil Nadu, India amuniraj@svce.ac.in, bmk@svce.ac.in *Corresponding author, e-mail:muniraj@svce.ac.in Key words: MAS, K 20 multi coated (TiN-TiCN-Al203-ZrCN) carbide insert, Surface roughness, Power consumed ABSTRACT An experimental investigation is carried out on machining Micro Alloy Steel (MAS).
Therefore, new free-machining steel was developed by minimizing MnS size and distributing them isotropically and it was verified that the developed steel had good properties not only in machinability but also mechanical properties.
The developed steel was useful in steel requiring high strength and machinability such as crank shafts of engines. [2,6-8] Kurtomi (1990) carried out a study on light weight connecting rod’s fatigue resistance which are made of micro alloyed steel and found that the micro alloyed steel SV 40CLI showed lower fatigue strength for smooth specimen but equivalent or higher fatigue strength for notched specimen than quenched and tempered steel S10 C steel. [7,9] Nakumara et.al (1993) made a research on the machining of free micro alloyed steel and the micro alloyed steel with best composition of alloy elements such as C, Mn, Cr, V, S, Pb, and Ca, and their impact on fatigue strength and machinability were found as 26% higher fatigue strength than conventional free machining microalloyed steel and 15% weight reduction resulted without any reduction of mechanical or fatigue strengths.
This is attributed to other machining factors which affect the surface finish.
Their mechanical behavior,” New Steel Products and Processing for Automotive Application, Detroit, USA (26-29 Feb. 1996) 89-100

Asachi”, Faculty of Mechanical Engineering, Street Prof. dr. doc.
The addition of alloying elements such as Ta, Nb and Zr represents a good solution for lowering modulus of elasticity, which is an important factor for reducing bone resorption and therefore for preventing implant failure.
Metallic biomaterials are still required for orthopedic applications, due to their excellent mechanical properties, good corrosion resistance and biocompatibility.
A lower hardness can accelerate the wear process, reason for which it is recommended to use a surface modification method in order to improve the tribological properties of the alloy [1].
Niinomi, Mechanical biocompatibilities of titanium alloys for biomedical applications, Journal of the Mechanical Behavior of Biomedical Materials, I (2008) 30-42

Each of these factors is set up as shown in Table 1 in which the Ton is a two-level factor, and the other parameters are three-level factors.
Input factors and levels.
Factors Factor levels Level 1 Level 2 Level 3 1 Ton (ms) 6 14 - 2 Cp (g/l) 0 0.03 0.06 3 Toff (ms) 14 21 30 4 IP (A) 4 8 12 5 SV (V) 3 4 5 Table 2.
That means that in this experiment, the S/N ratio is close to the normalized S/N ratio, and it has better properties than other experiments.
Step 6: Determine the significant factors by ANOVA analysis To understand how those PMEDM process parameters affect on the grey relation grades, ANOVA table is established as presented in Table 6.

In metals without the FCC microstructure the motion of dislocation is affected by the thermal agitation of the atoms.
This is followed by introducing the Weibull distribution function in terms of stress intensity factor that is widely used in literature for brittle fracture prediction.
(1) Where E=206 GPa and v=0.3 were the specific material properties within the range of temperatures.
We set Kmin equal to zero, invariant of material flow properties, crack-front configuration, and temperature.
But Weibull exponent is dependant on geometry [6], temperature and maybe other factors.

In the preliminary work, Ni-Fe-C system was adopted as filling metal to TIG weld of YG30 and steel 1045, η phase formation and mechanical properties of the corresponding joints have been studied as well [3].
By adjusting the C content of which, the formation mechanism and microstructure features of η phase together with the composition factors that affect the formation of η phase are investigated detailedly.
The size of this type of η phases is about 20 µm, The other kind appears at the heat affected zone (HAZ) of the weld, and their size is similar to or slightly smaller than the original WC particle size (Fig.1 a).
(Mechanical Industry Press, China 2000) [5] T.

The induced ground movements might affect the pile foundations which support structures on the surface.
Pile-tunnel interaction is influenced by several factors such as tunnel radius, soil properties, depth of tunnel, pile geometry, distance between pile and tunnel, groundwater, soil condition and etc.
However, this method is unable to directly account for the effect of different soil properties, ground conditions, construction methods and tunnel-soil structure interactions.
The soil properties and soil parameters used in the analysis are shown in Table 1.
(1) (2) Table 1: Soil parameters [5], tunnel lining properties [6] and mechanical properties Of bored pile [7] Material Cohesion c’ (kPa) Friction angle ϕ' (o) Elastic Modulus, E’ (MPa) Poisson Ratio, ν Unit Weight, γ (kN/m3) Alluvium 0 30 17.5 0.3 18 Residual Kenny Hill Soil 5 33 75 0.3 21 Concrete Lining - - 35000 0.25 25 Bored Pile - - 30000 0.25 24 Figure 1: Construction stages in numerical models Results and Discussion Evaluation of Surface Settlement.

In the discrete enterprise, devices have properties of strong versatility and large redundancy, and the enterprise efficiency is decided by product design rather than process control.
Knowledge Models for Process Enterprise Equipment Management We designed the equipment management knowledge models in order to study the influence factors of process enterprise from equipment’s mechanical property, technical parameters, operating criterions, maintenance, throughput, operating costs, enterprise efficiency, etc.
In order to achieve integrated decision flow, the model analyzes the various factors including equipment mechanical property, technical parameters, operational condition, device lubricating & maintenance, production capacity, operating cost, etc
The product cost of process enterprises is influenced by various complex factors.
The period of evaluating process and information feedback are active factors

It is worse that the mechanical properties decreased sharply with the increased size of heat affected zone.
Table 1 Experiment Parameters Optimization using L9(34) orthogonal array Number Experiment Parameters Factors Welding current [A] Welding speed [mm/min] Welding Gap [mm] 1 130 100 2 2 130 140 3 3 130 180 4 4 150 100 3 5 150 140 4 6 150 180 2 7 170 100 4 8 170 140 2 9 170 180 3 The surfaces of the plates were chemically cleaned using acetone to eliminate surface grease and smearing ethanol to clean surface moisture.
As Heiple and Roper studied, the direction of fluid flow can affect the weld morphology [7].
Compared to the welding without fluxes, the welding with CaO and TiO2 has deeper penetration and the heat affected zone (HAZ) is smaller, which reduce the range of plastic zone, resulting in the reduction of angular distortion.
Compared to the welding without fluxes, the welding with CaO and TiO2 has deeper penetration and the heat affected zone (HAZ) is smaller, which reduce the range of plastic zone, resulting in the reduction of angular distortion. 3.

Carbide-derived carbon (CDC) films prepared on silicon carbide are known to have excellent tribological properties in dry nitrogen.
Acting as a solid lubricant, these carbon layers can be useful in applications such as bearings, SiC-based microelectromechanical systems (MEMS), electrical contacts, biomedical implants, and mechanical seals.The tribological performance of carbon is strongly affected by the environmental conditions of the test or application.
Carbide-derived carbon films have shown an opposite effect, with excellent frictional properties in dry nitrogen and moderately good in air.
The behavior of CDC in dry nitrogen may be explained by a number of factors.
However, onionlike structures are known to form in CDC films [13] and are associated with excellent frictional properties in MoS2 [14].