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Online since: November 2011
Authors: Mathieu Brochu, David Levasseur
The main challenge in sintering Inconel 718 is to avoid the formation of a prior particle boundary (PPB) network that is deleterious to the mechanical properties.
This improves by far the homogeneity of the properties and often provides an increase in the final properties, when compared to wrought or casted products.
On the other hand, the uniaxial pressure applied is also enhancing the sintering by affecting diffusion and by plastic/viscous flow.
It is believed that these two factors are effective but in addition, the presence of a liquid film at the particle interfaces adds another contribution to the sintering of alloy 718 by SPS.
Online since: December 2015
Authors: C.J. Ani, Y. Danyuo, Karen Malatesta, S. Odunsoya, W.O. Soboyejo
Cell deformation and detachment depend largely on the cell and extra-cellular micro-environments/substrate mechanical properties [6].
This change in mechanical properties affects the cell shape and the receptor-ligand bonds between adjacent cells or cell-extracellular matrix.
The models also used prior measurements of cell height [22], ECM [45] and substrate [22] mechanical properties.
Mechanical and failure properties of single attached cells under compression.
Contribution of the nucleus to the mechanical properties of endothelial cells Journal of Biomechanics 2002; 35:177–187
Online since: January 2014
Authors: Xiao Feng Zhang, Long Zhang, Zhen Yi Huang
Tribological properties of coatings were carried out using a pin-on-ring tribometer at room temperature and 500˚C, respectively.
The objective is for the properties of both materials to be manifested in their respective temperature ranges.
Alkali fluorides (CaF2, BaF2, LiF2) is an alternative choice for their low shear strength and stable thermophysical and thermochemical properties at elevated temperature [3].
Fig 4: Microhardness of Ni60A-CaF2-WS2 coatings Fig 5: The relationship between bonding strength and spraying process Adhesive strength is one of the most important factors in thermal spray coating since it directly relates to the durability of the coating.
The friction coefficient of coatings was in the rage of 0.25~0.35 at ambient temperature and 0.45 at 500˚C with good wear properties and high adhesive strength.
Online since: July 2020
Authors: M.A. Popov, Ilya V. Gorshkov
That is why grey cast iron is generally used to make these units, as it has high hardness and good casting properties.
These factors make machining of such pieces quite a difficult task [1–3].
These factors directly affect the durability and accuracy of the whole machine-tool.
The use of oxide-carbide ceramics is characterized by significant differences in comparison with the use of other cutting materials (including hard alloy), primarily due to physical and mechanical properties.
Logutenkova, Dependence of physical and mechanical properties of metal surfaces on microgeometric parameters, IOP Conference Series: Materials Science and Engineering 483(1) (2019) 012045
Online since: July 2014
Authors: K. Senthil Kumar, Ramanathan Thirumalai, J.S. Senthilkumaar
Main factors affecting the optimum surface finish of the work piece are chip shape, color and chip reduction coefficient.
There were some factors which lead to the crack initiation and propagation during chip formation.
Their popularity stems from an attractive combination of properties, including high strength and excellent resistance to chloride stress corrosion cracking [9].
Factors (parameters) and levels for design of experiments considered in this work are given in Table 1.
“Machining characteristics of Inconel 718 under several cutting conditions based on Taguchi method”, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, Vol. 227, No.9, pp. 1889 – 1897,(2012)
Online since: February 2011
Authors: Tao Zhou, Li Wen Tang, Min Min Cao, Bin Bin Lei, Zhi Ming Zhou, Yang Hu
These so called alloys have outstanding combination of high mechanical strength with good electrical conductivities [1].
These excellent properties are not only dependent on the alloy composition, but also strongly influenced by the solidified microstructure.
It has been well known that the smaller the Cr-rich phase is, the better the electric properties can achieve.
For the sake of simplicity, this physical model is dealt with using the following assumptions: (1) The thermal resistance is neglected; (2) The physical properties of the flakes and the cooling plate are constant, and are independent of temperature; (3) Mass transfer in liquid and solid is neglected; (4) There is no gap between the flake and the cooling plate, so that only heat conduction is considered.
The factors affecting the temperature distribution and the cooling rate are discussed according to the cooling rate function.
Online since: October 2010
Authors: Yang Li, Hai Bo Wu, Lian Zhou Jiang, Xiu Qing Zhu, Hai Tao Wu
Soybean dominance comes from a variety of factors, including favorable agronomic characteristics, high-quality edible oil and high-quality protein.
Furthermore, the residual hexane in the commercial oil will affect consumer health.
These processes leave 7-8% residual oil contents in the soybean meal[2] and denature proteins due to high heat exposure rendering the meal deficient in functional properties for food use or further fractionation[3,4].
Three factors - EFSF concentration, the initial pH, inoculation volume, were as independent variable, total oil extraction yields were as response value in this study (Table 2).
However, interactions between EFSF concentration and the initial pH affected on the total oil recovery insignificantly (p>0.05).
Online since: July 2013
Authors: Xiao Jing Wang, Fan Wang, Ji Jin
Study on the Property Dynamic Filtration Performance of Anthranilic Acid Copper in Environment Engineering Wang Xiaojing, Wang Fan, Jin Ji Tianjin University school of chemical engineering and technology,Tianjin 300072 Keywords: Anthranilic acid copper; Solid-liquid separation; Rotary filter press; Filtrate rate; Abstract.
The shaft was mechanical seal(Structure of filter chamber as shown in figure 1).
Fig.6 Recovery effect of the filtration fabric in situ cleaningFig Fig7 Recovery effect of the filtration fabric by disassembling the machine Conclusions In this paper, the industrial fabric is used as filter media of rotary vane dynamic filter press and we explore their dynamic filtering properties withregardto increase in the concentration process for saccharin production process anthranilic acid copper solution of the Filter.
Analysis of factors affecting the filtration rate can be summarized to the following conclusions: (1) By looking at the impactofdifferentoperating conditions on thedynamicfiltration rate, anthranilic acid copper solutionin this experimental systemcan be suitable in dynamic filtration processoperating conditions: Rotary vane rotation rate n is selected for 1000~1200r/min.
Online since: January 2012
Authors: Marek Niewczas, G. Avramovic-Cingara, Uwe Erb, G. Palumbo, S. Arabi
Characterization of Magnetic Properties of Nanocrystalline Ni and Ni-15%Fe alloy S.Arabi1,a, G.
Both materials exhibit soft magnetic properties.
The mechanical properties, due to their fine grain size, are characterized by the high strength and relatively high ductility [4-6].
Detailed evaluation of these factors is currently in progress.
Conclusions Nanocrystalline Ni and Ni-15wt%Fe alloy exhibit soft magnetic properties.
Online since: April 2023
Authors: Jamal M. Rzaij, Jassim M. Marei, Abed A. Khalefa, H.A. Radwan
Effect of Sintering Temperature on the Structural and Morphological Properties of Hydroxyapatite Prepared by Precipitation Method Abed A.
X-ray diffraction (XRD) was used to investigate the structural properties of the prepared films.
It is more biocompatible because it has the same crystalline geometry and mechanical and physical properties as bio-apatite [3].
The surface morphology of the HAp nanostructure is affected by various factors, including the growing process [16].
It is also possible to achieve synthesis from solutions with brilliant properties and samples of complex contents.
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