Search results

It is important to realize that the shrinkage-induced flow is a physical phenomenon that is always present in the transition region of a solidifying billet, whereas the transport of solute-lean solid with its accumulation in a certain part of a casting is a conditional incident, the occurrence of which depends on a number of factors such as the structure evolution, temperature regime, and the direction of strong flows.
Convection affects the segregation pattern in dependence on the flow direction.
There is a direct correlation between the geometry of the billet sump (affected by the process parameters) and the degree of macrosegregation.
(ed) Proceedings of International conference on Aluminum Alloys - Their Physical and Mechanical properties, Charlottesville, Virginia; USA, 17-29
Gottstein (ed) Proceedings of 11 th international conference on Aluminium Alloys: Their Physical and Mechanical Properties, Aachen, Germany, Wiley-VCH, 292-297.

Therefore, the dynamic factor is to be .
Accordingly, the curvature of the monorail section affected by the dynamic load accounts for .
Fig. 3a depicts the graph showing the dependence of the monorail section curvature affected by the dynamic load which is moved along coordinate.
True, Dynamics of Railway and Rail/Wheel Contact, Dynamical Analysis of Vehicle Systems, CISM International Centre for Mechanical Sciences 497 (2009) 75-128
International Centre for Mechanical Sciences Springer-Verlag, Wien-New York, 1982

The basic properties of the used photocatalyst is listed in Table 1.
Table 1: The basic properties of the used photocatalyst.
The PCO is also related to many other factors such as the photocatalyst surface area, the porosity of the substrate, surface roughness of the substrate etc.
(2) Both the physical properties (e.g. the porosity) of the gypsum plaster and the dosage of the photocatalyst affect the NO degradation efficiency.
Brouwers, Microstructure and mechanical properties of β-hemihydrate produced gypsum:An insight from its hydration proces.

The electroconductive property of the EG/PLA filaments was quantified by measuring the linear resistivity of the filament samples.
Analysis of variance (ANOVA) was performed to assess the significant factors affecting the resistivity of the filament composites.
Experimental factors and levels.
Factors Unit Levels -1 (low) +1 (high) EG loading (A) % w/w 35 45 PEG:PLA ratio (B) - 1:10 1:20 Sonication time (C) hours 2 4 EPT Determination of 3D Printed EG/PLA Filament Composites.
The contour plots have curved lines because the model includes the interactions of the factors AC and BC.

Microwave treatment of oilfield wastewater has advantages such as equipment occupies a small space, easy to operate, portable, easy to transport, easy to installation and commissioning, short reaction time, high efficiency, discharge water which has good quality, temperature and other factors do not affect the treatment oilfield wastewater effect and so on.
The experimental instrument for the MKJ-J1-5 type microwave test furnace, by the Qingdao Maiwei electrical and mechanical equipment limited company production.
Table 1 Basic physical and chemical properties of oily wastewater Water Quality Objectives pH COD BOD Oil Test results/mg/L 8-9 800-5000 400-800 500-10000 Table 2 Percentage of number and volume of different particle sizes of oil droplets of oily wastewater Particle size range/μm 0-5 5-10 10-15 15-20 20-25 Percentage of the number/% 99.09 0.31 0.36 0.12 0.12 Percentage of the volume/% 79.78 0.67 5.22 3.56 10.77 We found that the dispersion state of the waste oil in the oily wastewater is highly fragmented.
The sensory properties of oil-water separation after microwave irradiation.The different microwave irradiation time in water samples of oil-water separation can be intuitive to see from Fig.3, microwave irradiation time is more than 2min, oil-water separation effect is obvious, but when microwave irradiation time was more than 3.5min water color gradually yellow, there is some kind of material at high temperature in oil reacted to dissolve in water. 1# 2# 3# 4# 5# 6# 9# 7# 8# 10# 30s 60s 90s 120s 150s 180s 270s 210s 240s 300s Fig.3 Sample photos of different microwave irradiation time After microwave irradiation in water and oil containing water temperature comparison.Water temperature with microwave irradiation time as shown in Fig.4, can be seen in water containing oil and water in the field of microwave irradiation heating curve have very big difference, show two kinds of liquid absorption of microwave energy is consistent.

Bhandakkar et al. [5] reported that fly ash did not affect the corrosion property.
Ravishankar, Mechanical properties of fly ash reinforced aluminium alloy (Al6061) composites, Int.
Basheer, Effect of fly ash addition on the physical and mechanical properties of AA6063 alloy reinforcement, Metals. 7 (2017) 477-479
Oguocha, Effect of fly ash particles on the mechanical properties of aluminium casting alloy A535, Mater.
Bhargava, Mechanical properties and corrosion behaviour of fly ash particles reinforced AA 2024 composites, J.

Dynamical characteristics Cutting forces are limiting factor machinability of the material.
The cutting forces affecting mainly the workpiece material, the geometry of the cutting tool and cutting conditions.
It should be noted that the correct design of the range of cutting speed affects the following: higher cutting speed the formation of large-volume chip-greater amount of heat is discharged to a higher volume of material (chips), [10]. [11]. [12].
Pilc, Influence of Cutting Fluids on Cutting Forces when Grinding Bearing Steel, Journal of Machine Manufacturing Design and Manufacturing, The Scientific Society for Mechanical Engineering, Hungary, Volume XLIX.
Martinkovič, Developing processes of property improvement of nickel base superalloys.

Mechanical properties: The monotonic mechanical properties of the analyzed materials are summarized in Table 3, encompassing results from instrumented micro-indentation (IT), tensile testing (T) and 3-point bending experiments (3-PB).
Monotonic mechanical properties of the materials analyzed in the present study, listed as average and standard deviation.
Li, A multi-component AlCrFe2Ni2 alloy with excellent mechanical properties, Mater.
Hecht, The Influence of Mo Additions on the Microstructure and Mechanical Properties of AlCrFe2Ni2 Medium Entropy Alloys, Front.
Schijve, Fatigue Properties, in: J.

The weld has very low distortion, almost no porosity and very good mechanical properties which has a good prospect to join pieces of materials with poor weldability , such as aluminum alloys and magnesium alloys and so on[1].At present, the study of friction stir welding mainly concentrated on microstructures and the flow mechanism of welded materials[2].
Welding distortion and residual stress in the process of friction stir welding were two important factors that affected the assemblage and property of welded products, and they were still important tasks that needed to be solved in the industry production nowadays.
This programme includes two parts: select appropriate welding parameters (Tab.1) and thermally physical parameters (Tab.2) at first, simulate the temperature field for joints and obtain a temperature field agreed with reality; then load the temperature results on the structure models as thermal force, select suitable thermodynamic properties of materials to forecast and analyse the stress field of joints.
Mechanical behavior in local post weld heat treatment ( Report I) viscoelastic plastic FEM analysis of local PWHT [J] .Trans JWRI, 1998, 27( 1) : 83- 88

Furthermore, geopolymer materials have excellent properties such as high strength, low thermal conductivity, fire resistance, acid and alkali resistance and low carbon emissions, and can be applied in engineering materials for construction.
However, building materials are often subjected to high impact and instantaneous energy loads that can affect the structure.
In this study, C4 was used as explosive charge which TNT equivalent mass factor of 1.037.
Moreover, the fiber-reinforced geopolymer concrete fractured into pieces rather than disintegrating into powder, suggesting that the addition of fibers enhances the geopolymer's mechanical properties. 2.
Tayeh: Influence of steel fibers and microsilica on the mechanical properties of ultra-high-performance geopolymer concrete (UHP-GPC).