Search results

Testing under different temperatures is important because the temperature significantly affects the material properties.
The surface of polymers is smooth, which leads to low friction factors and also has good fouling characteristics.
The important factor is the stress inside the wall of the fibres.
The properties of bundles and conditions of these tests are described in Table 1.
A pressure limit of 7.5 MPa was calculated based on the mechanical properties of polypropylene.

It synthetically considerate the factors affecting SDAV method, the physical and mechanical properties of the high water content sludge, and their influence to the efficiency of sludge dewatering.
Research on influencing factors of dredged sludge dewatering behavior with Aeration-Vacuum technique[D].

It was due to the introduction of organo-functional groups, changing the polarity of the channel surface, and increasing the hydrophobic properties.
Many attentions have been payed to the outstanding adsorption properties of the organic functionalized mesoporous silica, and many valuable prospective researches have been done in this aspect [4-5].
Five adsorbents show different adsorption capacity on phenol, this is because of their different surface properties.
With high polar and hydrophilic properties, unmodified MCM-41 adsorbed a small amount of phenol, although the specific surface area is the highest up to 750.4 m2/g.
The pH of the aqueous medium is an important factor that may influence physical and chemical properties of both adsorbent and adsorbate, and thereby affects the adsorption process.

PMMA is the best material for microfluidic chip fabrication because of its low cost, prominent electrochemical properties and biological compatibility.
In addition, polymers have good electrochemical properties and biological compatibility, making them the best choice for microfluidic chip fabrication[7-9].
We carried out single factor experiments through changing mold temperature, melt temperature and injection rate.
However, higher mold temperature would increase cooling time, and affect production efficiency significantly.
However, high melt temperature would lead to aging of plastics, which affects operational performance of the chip.

The vulnerable location of solidification cracking is confined in the [100] dendrite growth region on the right side of the weld pool because of increasing metallurgical contributing factors of severe stray grain formation, centerline grain boundary formation and coarse dendrite size.
The useful model is also applicable for other single-crystal superalloys with similar metallurgical properties.
Introduction γˊ and γˊˊ precipitation-strengthened nickel-based superalloys are widely used in aerospace components because of advantageous high-temperature mechanical properties and thermal stability.
The objective of this work is therefore to elucidate the effect of welding conditions (laser power, welding speed and welding configuration) on stray grain formation, dendrite selection, columnar/equiaxed transition, dendrite growth crystallography to evaluate the weldability with metallurgical contributing factors.
Nickel-based single-crystal superalloy CMSX-4 was used with chemical compositionNi-9Co-6.5Cr-5.6Al-1Ti-6W-6.5Ta-3Re-0.6Mo-0.1Hf (in wt%).The material properties are available in the literature [22-25].

Abstract.There are many uncertainty factors which can influence the carrier pile design and construction, some of them can lead the deformation characteristic of carrier pile more complex, especially the carrier pile shape parameter.
Based on the engineering investigation and survey results, the main physical and mechanical index of the model can be determined as Tab.1.
Fig.1 Finite element simulation model of carrier pile foundation treatment Tab.1 Main physical and mechanical index of the model Project Sandy silt calculated values Sandy clay calculated values gravity densityρ（×103kg/m3） 1.96 2.01 cohesive force C（kPa） 6.2 18.2 Friction angle Φ（º） 27.5 27.5 Deformation modulus Es（MPa） 15.5 12.5 With back-analysis method based on the actual situation and on-site test results, the origin shape parameter and pile index can be determined; its results are shown in Tab. 2 and Tab.3.
Tab.2 Physical and mechanical parameters of carrier pile and soil Material Type gravity density ρ×103kg/m3 cohesive force c/kPa internal friction angle/( º) elasticity modulus E/(Mpa) Poisson's ratio u Reinforced concrete 22 — — 3.5×104 0.2 Plain concrete 20.5 — — 2.2×104 0.2 Dense gravel soil 19.5 10 30 80 0.27 Compacted area 1 19 35 10 60 0.27 Compacted area 2 17.7 35 8 55 0.27 Soil between piles 19.6 30 10 33 0.27 Tab.3 Shape parameter of carrier pile summary Carrier size Plain concrete Density gravel soil compacted area one compacted area two thickness（m） 0.3 0.3 0.25 0.28 width（m） 0.58 2.16 2.56 3.12 Carrier Size Influence The main difference between carrier pile and conventional pile is the carrier pile has one expanding carrier at the bottom of the pile, and this expanding carrier can change the bearing capacity and deformation characteristic of the pile.
B．Changes the carrier size can affect the deformation properties of the pile more prominent, and the carrier pile’s resistance to deformation performance will upgrade more substantial when the volume of the plain concrete expand 1.1 to 1.2 times to the current design parameters.

Good crystalline of ATO thin films is necessary to improve the electrical and optical properties.
Both the electrical and optical properties have been enhanced with the increasing of laser energy density.
Therefore, good crystalline of ATO thin films is necessary to improve the electrical and optical properties.
On the other hand, pulsed laser deposition (PLD) is a convenient way to fabricate ATO thin films with precise control of composition of ATO ceramic targets [10] and the laser energy density is an important factor to affect the crystallization of ATO films.
This factor can be calculated as Eq. (1) [14]

A long holding time cause to produce carbide that is undesirable since it results in the embrittlement of the structure and degrades the mechanical properties of ADI [3-8].
Mechanical properties of ADI depend on the austempered microstructure which, in turn, is a function of the alloying elements and the heat treatment parameters [4].
Impact properties.
Moreover, the duration of the austempering may affect the microstructure.
Bahrami, The role of austempering parameters on the structure and mechanical properties of heavy section ADI, J.

Marine Engineering Steels—Properties Requirements and Evaluation Jian-Xun FUa,*, Le CHENb, Chang-Jin WUc and Yan-Xin WUd,* Key Laboratory of Modern Metallurgy & Materials Processing, Shanghai University, Shanghai, China afujianxun@shu.edu.cn, b1551863449@qq.com, cwince@shu.edu.cn, dhinginu@126.com *Corresponding author Keywords: marine engineering steel, corrosion resistance, structural toughness, weldability.
Due to the welded structures of offshore platforms, platform steel requires good processing properties and mechanical properties, particularly demanding in terms of toughness.
These types of corrosion are often related with the structural design or metallurgical factors.
In additional, the CTOD test is also indispensable to measure the fracture toughness of the welded joints and evaluate the crack resistance of the weld joint properties.
Low toughness would affect the safety and service life of the structure while high toughness would significantly increase the cost of production.

SPD microstructure positively affects mechanical properties and corrosion resistance by refining the microstructure and homogeneously distributing the eutectic phase.
The low degree of heat treatment ensures that most of the silicon does not turn into a spherical shape, which can adversely affect the mechanical properties.
Effect of ECAP on microstructure uniformity and mechanical properties of high purity aluminum.
ECAP effect on the micro-structure and mechanical properties of AM30 magnesium alloy.
Factors Influencing Tensile Mechanical Properties of Al-7Si-Mg Casting Alloys A356 / 7. 2012, 467–471