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Online since: June 2013
Authors: Janne Lämsä, Antti Järvenpää, Anu Väisänen, Jouko Heikkala
Bending tests were made longitudinally (LO) and transversely (TR) in relation to the rolling direction due to anisotropy in mechanical properties.
The results showed that by using structural steels, n- and K-factors, UE, TS and YS correlated with the Rmin (Table 3).
There are many material parameters affecting to the bendability of materials.
Tensile properties and bendability of T4 treated A6111 aluminum alloys.
Factors Affecting Bend Formability of Tempered Copper Alloy Sheets.
The results showed that by using structural steels, n- and K-factors, UE, TS and YS correlated with the Rmin (Table 3).
There are many material parameters affecting to the bendability of materials.
Tensile properties and bendability of T4 treated A6111 aluminum alloys.
Factors Affecting Bend Formability of Tempered Copper Alloy Sheets.
Online since: May 2021
Authors: Godwin Akande, Ojo Sunday Issac Fayomi, C. Ofo
Corrosions are initiated by various factors, both from the environment and due to the type of material.
Mild steel finds broad application basically because of its ready availability, sensibly great mechanical properties, and ease of fabrication.
Coating quality depends on other factors besides the type of material being used.
Surface characterization, mechanical properties and corrosion behaviour of ternary based Zn-ZnO-SiO2 composite coating of mild steel.
Influence of environmental factors on corrosion of ship structures in marine atmosphere.
Mild steel finds broad application basically because of its ready availability, sensibly great mechanical properties, and ease of fabrication.
Coating quality depends on other factors besides the type of material being used.
Surface characterization, mechanical properties and corrosion behaviour of ternary based Zn-ZnO-SiO2 composite coating of mild steel.
Influence of environmental factors on corrosion of ship structures in marine atmosphere.
Online since: July 2014
Authors: N. Sakthivelon, Arumugam Mahamani, Sai Kumar Jetti, M. Vijay Sekar Reddy, P. Vamsi Krishna Naidu, M. Rithesh, K. Veeranagaiah
The above said nature of the reinforcements, promotes the bonding strength and mechanical properties.
Multiple ceramic particles reinforced composites are developed to achieve the combination of properties that are not available in a single ceramic material [13].
Analysis of variance is employed to identify the significant factor which is affecting the surface roughness during machining.
Table 1 Level of factors Factors Levels Discharge current (Amps) 10 11 12 Pulse on time (µs) 50 100 200 Flushing pressure(Kg/cm2) 0.3 0.4 0.5 Experimental work Spark erosion type electrical discharge machining with model 150 is used for this experimental work.
Zeng, B.Yang and Q.Li: Microstructure and mechanical properties of in-situ Al- Cu/TiC composites: Journal Materials Science Technology Vol 14 (1998), p.255- 258
Multiple ceramic particles reinforced composites are developed to achieve the combination of properties that are not available in a single ceramic material [13].
Analysis of variance is employed to identify the significant factor which is affecting the surface roughness during machining.
Table 1 Level of factors Factors Levels Discharge current (Amps) 10 11 12 Pulse on time (µs) 50 100 200 Flushing pressure(Kg/cm2) 0.3 0.4 0.5 Experimental work Spark erosion type electrical discharge machining with model 150 is used for this experimental work.
Zeng, B.Yang and Q.Li: Microstructure and mechanical properties of in-situ Al- Cu/TiC composites: Journal Materials Science Technology Vol 14 (1998), p.255- 258
Online since: January 2022
Authors: Artashes Levoni Petrosyan
However, this option, in comparison with a heat source on a gas boiler, is expensive both in terms of acquisition and in terms of operation, and it is expedient, especially in this case, to improve the thermal-mechanical properties of the external structures of the building and reduce the heat losses arising from them.
Method The purpose of this article is to determine, in the climatic zones of Armenia and in building structures under the influence of various factors, at the optimal thickness and position of the heat-insulating layer in terms of energy-economic indicators, the types of heat source and its energy efficiency indicators and to determine how they will affect the humidity regime of the building when using foam plastic and penoplex as a heat insulator.
The thermal-mechanical properties of the thermal insulation material significantly affect the overall energy characteristics of the building.
This means that in the case of a material with higher thermo-mechanical properties, heat penetration is significantly reduced, which reduces cold loads in different months.
If it is possible to use a material with higher thermal insulation properties as a heat insulator, it is necessary to take into account its wet properties, because, especially in the winter season, condensation appears, for the removal of which it is necessary to spend 3 ... 4% of the usable heat transmitted through the heating system.
Method The purpose of this article is to determine, in the climatic zones of Armenia and in building structures under the influence of various factors, at the optimal thickness and position of the heat-insulating layer in terms of energy-economic indicators, the types of heat source and its energy efficiency indicators and to determine how they will affect the humidity regime of the building when using foam plastic and penoplex as a heat insulator.
The thermal-mechanical properties of the thermal insulation material significantly affect the overall energy characteristics of the building.
This means that in the case of a material with higher thermo-mechanical properties, heat penetration is significantly reduced, which reduces cold loads in different months.
If it is possible to use a material with higher thermal insulation properties as a heat insulator, it is necessary to take into account its wet properties, because, especially in the winter season, condensation appears, for the removal of which it is necessary to spend 3 ... 4% of the usable heat transmitted through the heating system.
Online since: February 2016
Authors: Shu Wang Duo, Hao Zhang, Jin Shang, Chen Gang Luo, Long Qing Wu
In this paper, CrN coatings were fabricated by reactive magnetron sputtering technique and the influences of N content on composition, structure, morphologies and mechanical properties of CrN coatings were investigated.
Ltd, Shanghai, China) and a multi-functional tester for material surface properties (MFT-4000, HuaHui Instruments technology Co.
Mechanical properties and machining performance of Ti1-xAlxN coated cutting tools, Surface and Coatings Technology. 191 (2005) 384-392
Mechanical, micro-structural and oxidation properties of reactively sputtered thin Cr-N coatings on steel, Thin Solid Films. 519 (2011) 6515-6521
Mechanical properties and oxidation resistance of CrN coatings deposited by closed field unbalanced magnetron sputter ion plating, Key Engineering Material. 591 (2014) 176-179
Ltd, Shanghai, China) and a multi-functional tester for material surface properties (MFT-4000, HuaHui Instruments technology Co.
Mechanical properties and machining performance of Ti1-xAlxN coated cutting tools, Surface and Coatings Technology. 191 (2005) 384-392
Mechanical, micro-structural and oxidation properties of reactively sputtered thin Cr-N coatings on steel, Thin Solid Films. 519 (2011) 6515-6521
Mechanical properties and oxidation resistance of CrN coatings deposited by closed field unbalanced magnetron sputter ion plating, Key Engineering Material. 591 (2014) 176-179
Online since: January 2006
Authors: Zong Xia Jiao, Xiao Dong Wang, Guo Ping Huang
A CAD/CAM idea with its relation model including the analyses of braid process, yarns
internal geometry and mechanical properties is proposed.
Mechanical properties were analyzed by various approaches according to the braiding situations [4].
In order to analyze the mechanical properties of a part, a macroscopic shape of it must be established.
The properties includes the mechanical, thermo, fatigue, energy absorption ones, etc.
Here, finite element method is adopted to analysis the macro properties of braided composite[6].
Mechanical properties were analyzed by various approaches according to the braiding situations [4].
In order to analyze the mechanical properties of a part, a macroscopic shape of it must be established.
The properties includes the mechanical, thermo, fatigue, energy absorption ones, etc.
Here, finite element method is adopted to analysis the macro properties of braided composite[6].
Online since: September 2020
Authors: Ivan Petryshynets, Roman Kussa, Ihor Kushchenko, Volodymyr Andilakhai, Vadym Zurnadzhy, Vasily Efremenko
The enrichment of austenite by carbon and other alloying elements leads to increase in its stability to phase transformation [19] hence affecting austenite transformation behavior under the bainitizing holding.
Mechanical properties were measured by tensile tests using the specimens of 5 mm diameter and 30 mm gauge.
The tensile properties values are presented in Fig. 5a.
Wu, Effect of matrix structures on TRIP effect and mechanical properties of low-C low-Si Al-added hot-rolled TRIP steels, Mater.
Misra, Interplay between deformation behavior and mechanical properties of intercritically annealed and tempered medium-manganese transformation-induced plasticity steel, Mater.
Mechanical properties were measured by tensile tests using the specimens of 5 mm diameter and 30 mm gauge.
The tensile properties values are presented in Fig. 5a.
Wu, Effect of matrix structures on TRIP effect and mechanical properties of low-C low-Si Al-added hot-rolled TRIP steels, Mater.
Misra, Interplay between deformation behavior and mechanical properties of intercritically annealed and tempered medium-manganese transformation-induced plasticity steel, Mater.
Online since: April 2019
Authors: Oskars Platnieks, Anda Barkāne, Sergejs Gaidukovs, Janis Kajaks
These materials should be characterized by enhanced dielectric properties compared to general polymer materials [2].
Recently, promising research has shown that nanoparticles of multiwall carbon nanotubes (CNT), graphene (Gr) and iron(III,IV) oxide (Fe3O4) are promising fillers for polymers, added in order to enhance conductivity, magnetic properties, optical properties, fatigue resistance, thermal stability, and mechanical properties of these materials [1,5,7].
Finally, dielectric properties of composites were analysed and compared to those of EVA.
Their properties were: σ =106–107 S/m, d = 20–30 nm and ρ = 4.8–5.1 g/cm3.
If frequency is increased, the effect of nanoparticles on dielectric properties decreases.
Recently, promising research has shown that nanoparticles of multiwall carbon nanotubes (CNT), graphene (Gr) and iron(III,IV) oxide (Fe3O4) are promising fillers for polymers, added in order to enhance conductivity, magnetic properties, optical properties, fatigue resistance, thermal stability, and mechanical properties of these materials [1,5,7].
Finally, dielectric properties of composites were analysed and compared to those of EVA.
Their properties were: σ =106–107 S/m, d = 20–30 nm and ρ = 4.8–5.1 g/cm3.
If frequency is increased, the effect of nanoparticles on dielectric properties decreases.
Online since: June 2012
Authors: Li Ping Chang, Xue Dong Han, Li Wei, Gang Luo
As a result, the intensity of the bottom chord affect the security factor of the whole bridge, and as a result of the stress concentration appeared around the tapped holes when the bottom chord transfers the force, the intensity around the tapped holes is directly related to the bottom chord.
Table 1 T300/QY8911 mechanical properties of material material property mean value material property mean value 135 8.8 0.48 0.33 3.32 4.47 Fig. 3 The geometric model of the bottom chord bilateral reinforcing and the finite element model of the reinforcing part 4, The result of calculation and analysis When the bottom chord is only under gravity and axial tension, the local stress cloud chart on the condition of no reinforcement,unilateral and bilateral reinforcement are shown in the Fig.4, and the ultimate stress values is shown in Table 2
Therefore, it is very necessary to analyze the laminated composites mechanical properties around the reinforcing bottom chord.
While the ply angle affect the stress distribution of the Y direction a lot, and the max stress value is on the 0 DEG layer.
Ply angle of the composite material layer almost have no effect on the stress distribution of the X direction, while affect the stress distribution of the Y direction a lot, and the maximum stress value is on the 0 DEG layer.
Table 1 T300/QY8911 mechanical properties of material material property mean value material property mean value 135 8.8 0.48 0.33 3.32 4.47 Fig. 3 The geometric model of the bottom chord bilateral reinforcing and the finite element model of the reinforcing part 4, The result of calculation and analysis When the bottom chord is only under gravity and axial tension, the local stress cloud chart on the condition of no reinforcement,unilateral and bilateral reinforcement are shown in the Fig.4, and the ultimate stress values is shown in Table 2
Therefore, it is very necessary to analyze the laminated composites mechanical properties around the reinforcing bottom chord.
While the ply angle affect the stress distribution of the Y direction a lot, and the max stress value is on the 0 DEG layer.
Ply angle of the composite material layer almost have no effect on the stress distribution of the X direction, while affect the stress distribution of the Y direction a lot, and the maximum stress value is on the 0 DEG layer.
Online since: January 2021
Authors: Olga G. Klimova-Korsmik, R.S. Korsmik, Nadezhda Valerievna Lebedeva, R.V. Mendagaliyev, I.A. Tsibulskiy, O.G. Zotov
Structural features such as grain size and morphology, phase transformations are very sensitive to the influence of temperature fields and directly affect the microhardness and mechanical properties of materials [6, 7].
Mechanical properties of alloys depend on their structural-phase state.
Mechanical properties of specimens before and after heat treatment.
Mechanical properties of samples before and after heat treatment.
In order to redistribute the complex of mechanical properties, heat treatment is proposed.
Mechanical properties of alloys depend on their structural-phase state.
Mechanical properties of specimens before and after heat treatment.
Mechanical properties of samples before and after heat treatment.
In order to redistribute the complex of mechanical properties, heat treatment is proposed.