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Online since: September 2014
Authors: A.G. Knyazeva, Yu.P. Azhel, E.S. Parfenova
Surface treatment is accompanied by different physical and chemical factors that affect each other and influence the formed macroscopic properties of work materials.
The role of each separate factor can’t be experimentally investigated.
Researches on the themes have been carried out in various scientific schools, but taking into account the opportunities connected with materials processing with particle fluxes, the problem of using this method for improving properties of work materials is topical.
Using the properties of the materials presented in [4-5], the parametric variation intervals have been calculated: , , , .
(in Russian) [5] Aluminum: properties and physical metallurgy, in: D.E.
Online since: July 2016
Authors: Shu Lan Su
The objective of this work is to estimate certain mechanical properties for engineering applications of the honeycomb.
At present, research on mechanical properties of the honeycomb is mainly focused on theoretical predictions[5-9], numerical simulations[10-13], and experimental studies[14-17].
Numerous studies show that the pore structure is a key factor in the decision of the mechanical properties of the honeycomb.
Ashby, Cellular Solids: structures and properties, Second Edition.
Ashby, The out-of-plane properties of honeycombs, Int.
Online since: August 2013
Authors: Yuan Yuan Zhang, Shu Ran Lv
Therefore, it is necessary to carry on the physical and mechanical properties of mine tailings.
Material physical and mechanical characteristics tests on Tailing Dam The article conducts a comprehensive experiment on the particle size, density, moisture content and series of physical and mechanical properties of the tailings dam in order to grasp the tailings deposition law, physical and mechanical properties and stability of tailings dam.
There is a certain relationship between tailing s’ particle size, the proportion of grain group and their physical and mechanical properties.
According to the classification of tailings composition, physical and mechanical properties such as permeability, plasticity, shrinkage, expansion can be roughly determined.
However it fails to fully reflect the complexity nature of the soil, especially for fine-grained tailings, its mineral composition, particle shape, and colloidal content are important factors to affect its physical and mechanical properties.
Online since: January 2021
Authors: Tohru Yamasaki, Eri Miura-Fujiwara, Naoki Nishimura
In this study, besides the fretting wear behavior of Ti-Nb alloys was investigated, the relationship between the microstructure and mechanical properties of the Nb-added Ti alloy was investigated, and the relationship between the composition and hardness on the fretting wear of the alloy will be clarified from the results of the wear volume and surface analysis of wear track.
Introduction Ti alloys have excellent mechanical properties, corrosion resistance, and biocompatibility; thus, they are used as an alternative material to hard tissue, such as artificial hip/knee joint, dental implant, bone plate, and so forth [1].
However, fretting wear is a complex phenomenon in which the sliding distance is as small as tens to hundreds of μm [2], and it is greatly affected by changes in factors such as the atmosphere and the combination of materials.
The relationship between the microstructure and mechanical properties of the Nb-added Ti alloy was investigated, and the relationship between the composition and hardness on the fretting wear of the alloy will be clarified from the results of the wear volume and surface analysis of wear track.
Ball-on-disk fretting wear tests were carried out for investigating the tribological properties.
Online since: June 2022
Authors: Kuldeep Kumar Saxena, Ajit K. Yadav, Ankita Awasthi, Manoj K. Agrawal
Each biomaterial is unique in its chemical, physical, or mechanical properties.
Each biomaterial is unique in its chemical, physical, or mechanical properties.
Tissue-specific mechanical factors were identified to be able to govern MSC development.
Biological, chemical, or combined processes can degrade a biomaterial, affecting its biocompatibility and biocompatibility [25].
It is unclear at this time what combination of factors (biomechanical comparability, space constraint) could affect the process of regeneration.
Online since: October 2011
Authors: Yu Yan Li, Xie Qing Huang, Fu Lin Li
Introduction In recent years, with science and technology’s development, neural net was taken account of in the field of predicting properties of material.
Density and shape factor were two key influencing factors of nonlinear constitutive relationship of metallic rubber.
States of neurons in each layer would affect states of neurons in next layer.
[11] Gibson L J, Ashby M F, “Cellular Solids: Structures and Properties,” [12] London: Cambridge University Press, 1997
Ashby, “The Mechanical Properties of Cellular Solids,” Metallurgical Transactions A, vol. 14A, pp. 1755~1769, September 1983
Online since: November 2017
Authors: Mohammed Azzaz, Hamza Azzaz, Djaffar Dahmoun, O. Chaterbache
As with all materials, structural defects are inevitable and affects NTC properties.
Introduction The carbon nanotubes have very spectacular mechanical, electronic and electromechanical properties [1].
Similarly, numerical simulation was used to study the mechanical properties of CCNTs.
In particular, there is no atomic simulation of the mechanical properties of zigzag CCNTs.
Mechanical model and superelastic properties of carbon microcoils with circular cross-section, J.
Online since: June 2013
Authors: Y.S. Kuo
Kuo Department of Mechanical Engineering ChienKuo Technology University No.1, ChiehShou N.
All the factors will be discussed in this study to find out the influence on the porosity content.
Berry, “A Reexamination of Factors Affecting porosity Gradients in Unidirectionally Solidified Samples,” AFS Transactions, Vol.116, pp.157-168, 2008
Kuo, “Mechanical Properties and Porosity Content of A201 Aluminum Alloy Castings in Different Cooling Rate Sand Molds,” Advanced Materials Research, Vols. 154-155, pp.787-793, 2011
Berry, “Effects of Solidification Conditions on Mechanical Behavior of Al Cast Alloys,” AFS Trans.
Online since: January 2022
Authors: Hitoshi Takagi, Takao Ueda, Masayuki Tsukagoshi, Kazuo Fujiyoshi
Mechanical Properties and Durability of Bamboo Fibers/Bamboo-Fiber-Mixed Spray Mortar for Slope Protection K.
The mechanical properties of bamboo-fiber-reinforced spray mortar were examined under cyclic wet and dry conditions along with its resistance against freezing and thawing by a spray test.
It was confirmed that 0.75% mixture of bamboo fibers in spray mortar successfully improved mechanical properties and durability.
The material properties of bamboo fibers and vinylon fibers used are shown in Tab. 1.
It is assumed that the quality of this mortar diminishes more than the mortar prepared indoors due to such factors as material separation that occurs during air conveyance and spraying, and uneven spray pressure.
Online since: July 2014
Authors: Yi Fan Lu, Ying Xia Huang, Wei Wu, Guan Hua Wu
Introduction TC4 alloy is a type of α+β titanium alloy, it owes comprehensive mechanical properties, high strength and good thermal processing characteristics.
Forged TC4 alloy leads to the unevenness of forging organization due to the deformation, leading to the unevenness of the organization being heat-treated and the unevenness of properties distribution.
Therefore control the uniformity of TC4 organization can control the uniformity of properties of parts to reduce post-processing deformation.
The system can avoid some human factors, it operates smoothly, its probe positions accurately , it owes high efficiency, it achieves automatic ultrasonic testing and saves labor costs.
However, because there are many factors that will affect the propagation velocity of ultrasonic waves.
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