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Online since: April 2009
Authors: J. Marcos Salazar, Vincent Vignal, Aurélie Clair, Marc Foucault, Eric Finot, Laurent Markey
Today, the impact of the oxide growth
on the mechanical properties of nickel alloys is a challenge.
The surface analysis and the quantification of the local deformation are key factors to deduce the surface damage of the substrate produced by corrosion.
The mechanical properties of the alloy are modified, in the long term, by the heat transfer between the primary and secondary water inside the steam generator.
The mechanical properties of surfaces or thin films determine the survival and/or the ageing of many industrial components.
Eisenstadt: Introduction to Mechanical Properties of Materials (The McMillan Co., New York 1971)
The surface analysis and the quantification of the local deformation are key factors to deduce the surface damage of the substrate produced by corrosion.
The mechanical properties of the alloy are modified, in the long term, by the heat transfer between the primary and secondary water inside the steam generator.
The mechanical properties of surfaces or thin films determine the survival and/or the ageing of many industrial components.
Eisenstadt: Introduction to Mechanical Properties of Materials (The McMillan Co., New York 1971)
Online since: December 2024
Authors: Olena Kuleba, Ihor Mamontov, Nina Rashkevich, Yurii Otrosh
Bridge structures are exposed to factors that can be divided into natural and human factors throughout their service life [7, 8].
Cracks can be minor or severe, affecting the structural strength of the bridge.
Soshinskiy Investigation of the Influence of the Physical Properties of Landfill Soils on the Stability of Slopes in the Context of Solving Civil Security Problems, Materials Science Forum, 1038 (2021) 407–416
State-of-the-art review of dynamic impact factors of highway bridges.
Transverse cracking of concrete bridge decks: Effects of design factors.
Cracks can be minor or severe, affecting the structural strength of the bridge.
Soshinskiy Investigation of the Influence of the Physical Properties of Landfill Soils on the Stability of Slopes in the Context of Solving Civil Security Problems, Materials Science Forum, 1038 (2021) 407–416
State-of-the-art review of dynamic impact factors of highway bridges.
Transverse cracking of concrete bridge decks: Effects of design factors.
Online since: June 2021
Authors: Hui Su Chen, Ming Qi Li
The ITZ (interfacial transition zone) in concrete has very high porosity and permeability, which affects concrete’s macroscopic mechanical properties and transport properties.
In addition, some scholars hold that the thickness t depends on the properties of the cement particles [5-8], which implies t should be uniform.
Zhu and Chen et al.[11,12] studies how aggregate’s particle size distribution (PSD) and shape affect the misestimation of t induced by 1D linear analysis.
Effect of various factors on the misestimation of diffusivity.
In addition, some scholars hold that the thickness t depends on the properties of the cement particles [5-8], which implies t should be uniform.
Zhu and Chen et al.[11,12] studies how aggregate’s particle size distribution (PSD) and shape affect the misestimation of t induced by 1D linear analysis.
Effect of various factors on the misestimation of diffusivity.
Online since: May 2020
Authors: D.P. Ilyashchenko, R.Yu. Nekrasov, A.N. Venediktov, M.S. Kuzmin, M.V. Deneko
However, most models show good results for Fe-C austenite without affecting the effect of alloying substitution elements.
However, most models show good results for Fe-C austenite without affecting the effect of alloying substitution elements.
The formula registers the dependence on the carbon concentration for the pre-exponential factor of the carbon diffusion coefficient (thermodynamic factor) and the effective activation energy of its diffusion (in accordance with the experimental data).
This allows further workpiece’s grinding without affecting the maximum concentration of carbon in the surface layer.
As a consequence, it does not affect the deterioration of the surface’s mechanical properties [9].
However, most models show good results for Fe-C austenite without affecting the effect of alloying substitution elements.
The formula registers the dependence on the carbon concentration for the pre-exponential factor of the carbon diffusion coefficient (thermodynamic factor) and the effective activation energy of its diffusion (in accordance with the experimental data).
This allows further workpiece’s grinding without affecting the maximum concentration of carbon in the surface layer.
As a consequence, it does not affect the deterioration of the surface’s mechanical properties [9].
Online since: November 2013
Authors: Nooririnah Binti Omar, Yusliza Yusuf, Muhamad Azwar Azhari, Md Ashadi Bin Md Johari
Therefore, it is inevitable to improve the wear properties of Ti-6Al-4V without detrimental the initial corrosion resistance properties even increasing it for better result.
Nevertheless, various methods of surface treatments conducted will certainly affect the corrosion resistant properties of Ti-6Al-4V, since the corrosion resistance of titanium alloys depends very much on the properties of the surface layer [3].
This method is found to increase the mechanical property such as surface hardness of the Ti-6Al-4V alloy [10].
The nature of surface modification result will affect the corrosion resistance properties of the Ti-6Al4V because the presence of microstructural defect the coating was prone to corrosion attack.
Tribological properties of titanium alloys.
Nevertheless, various methods of surface treatments conducted will certainly affect the corrosion resistant properties of Ti-6Al-4V, since the corrosion resistance of titanium alloys depends very much on the properties of the surface layer [3].
This method is found to increase the mechanical property such as surface hardness of the Ti-6Al-4V alloy [10].
The nature of surface modification result will affect the corrosion resistance properties of the Ti-6Al4V because the presence of microstructural defect the coating was prone to corrosion attack.
Tribological properties of titanium alloys.
Online since: August 2011
Authors: Li Yang, Ying Huai Qiang, Fu Shan Chen, Yang Gao, Yun Tian Zhong
Effect of Working Current on Microstructure and Properties of Cylinder Hardened by Plasma Beam at Junction of the Hardening Traces
Li Yang1,2,a,Yinghuai Qiang1,b,Fushan Chen2,a,Yang Gao2,a and Yuntian Zhong 2,a
1School of Materials Science & Engineering China University of Mining and Technology Xuzhou China 221116
2Mechanical and Electronic Engineering Department Xuzhou Institute of Technology Xuzhou, China 221008
a linlideyu@126.com,b yhqiang@cumt.edu.cn
Keywords: Cylinder; working current; plasma beam; junction; properties
Abstract.
After the treatment, phase transformation or micromelted-solidified modification can be obtained on the surface of part and its mechanical properties increase largely [1 ~ 4].
The chemical composition, microstructure and properties of boron cast iron Boron cast iron is melted in cupola and the pouring temperature is between 1470℃ and 1480 ℃ .After the inoculation with 75SiFe, the specimens of 95-cylinder are poured with horizontal centrifugal casting.
The analysis and calculation uses G factors, and the sum of martensitic phase content and the retained austenite phase content is thought as 100%.
Hardening holding time is an important factor which affects surface hardness and depth of quench structure.
After the treatment, phase transformation or micromelted-solidified modification can be obtained on the surface of part and its mechanical properties increase largely [1 ~ 4].
The chemical composition, microstructure and properties of boron cast iron Boron cast iron is melted in cupola and the pouring temperature is between 1470℃ and 1480 ℃ .After the inoculation with 75SiFe, the specimens of 95-cylinder are poured with horizontal centrifugal casting.
The analysis and calculation uses G factors, and the sum of martensitic phase content and the retained austenite phase content is thought as 100%.
Hardening holding time is an important factor which affects surface hardness and depth of quench structure.
Online since: June 2025
Authors: Tomasz Galek, Marcin Marciniak, Karol Łysiak, Janusz Czaja, Mirosław Janusz Surowaniec, Andrzej Trytek
These processes, associated with high temperatures of propellant gases, as well as phenomena such as friction, diffusion, and chemical reactions, are multifaceted and can lead to a significant deterioration in the mechanical and physical properties of the barrel material [1,2].
Long-term research has identified key factors significantly affecting barrel longevity [10,11].
The second most important factor is the properties of the material from which the barrel is made and its construction.
It also minimizes the heat-affected zone, preserving material properties.
This, in turn, can cause alterations in mechanical and physical properties, potentially resulting in localized melting of the barrel material.
Long-term research has identified key factors significantly affecting barrel longevity [10,11].
The second most important factor is the properties of the material from which the barrel is made and its construction.
It also minimizes the heat-affected zone, preserving material properties.
This, in turn, can cause alterations in mechanical and physical properties, potentially resulting in localized melting of the barrel material.
Online since: May 2003
Authors: Michael V. Swain, Simon P. Ringer, M. Guazzato, M. Albakry
In order to improve the mechanical properties of IA, Vita has
developed a new ceramic by adding 33vol% of CeO2-PSZ to the original material.
Processing of the block by the manufacturer should result in a more homogeneous material with better mechanical properties.
However, studies regarding the mechanical properties of these materials do not consistently support such assumptions, suggesting that some other factors are also important in determining the performance of IA and IZ [1-3].
Discussion IA slip and IA block are essentially two different materials because of their differing grain shape, size and orientation and are expected to have different mechanical properties and fracture behavior.
The crack is deflected by the high strength alumina grains, whereas it propagates through the transformed zirconia grains Conclusion In-Ceram Alumina slip and block have different microstructure, and therefore different mechanical properties are also expected.
Processing of the block by the manufacturer should result in a more homogeneous material with better mechanical properties.
However, studies regarding the mechanical properties of these materials do not consistently support such assumptions, suggesting that some other factors are also important in determining the performance of IA and IZ [1-3].
Discussion IA slip and IA block are essentially two different materials because of their differing grain shape, size and orientation and are expected to have different mechanical properties and fracture behavior.
The crack is deflected by the high strength alumina grains, whereas it propagates through the transformed zirconia grains Conclusion In-Ceram Alumina slip and block have different microstructure, and therefore different mechanical properties are also expected.
Online since: February 2013
Authors: Li Na Ji
The extent of polymerization (apparent from the molecular weight of the polymer) is a function of the polymerization conditions and significantly affects the properties of the resin that is produced.
[Note that intrinsic viscosity (as well as molecular weight) indicates the degree of polymerization, which in turn is the main factor in setting the properties of PET.]
PET has good barrier properties against oxygen and carbon dioxide.
The mechanical properties of polyester film make it a choice substrate for a variety of processing technologies, such as vacuum metalizing, coating and laminating.
This polyester is used widely for electrical and electronic components due to its high temperature resistance and good electrical properties.
[Note that intrinsic viscosity (as well as molecular weight) indicates the degree of polymerization, which in turn is the main factor in setting the properties of PET.]
PET has good barrier properties against oxygen and carbon dioxide.
The mechanical properties of polyester film make it a choice substrate for a variety of processing technologies, such as vacuum metalizing, coating and laminating.
This polyester is used widely for electrical and electronic components due to its high temperature resistance and good electrical properties.
Online since: February 2013
Authors: Yan Li, Lin Jin, Xiao Zhang, Miao Liu
At the same time, the fountain solution is removed, resulting in the temperature of the ink in the printing process is too high and the ink stickiness is increased, then affecting the printing quality.
(4)The temperature of the blanket cylinder does not affect the deformation of the blanket.
Conclusion Temperature is an important issue to affect the normal working of the waterless press.
Before calculating the heat transfer of the cooling roller, need to analyze the heat transfer model and the influence factors, and build an ideal physical model, then analyze each module of the model and calculate the theory formula.
[4] [4]WANG Shuang-cheng, WANG Qian: The calculation of water’s physical properties (The journal of Henan TV University, 2000, p.31) [5] CHENG Hong: Principles and design of the modern printing machinery (China Light Industry Press, Beijing 2007) [6] Wang Ye-ping: Journal of mechanical Vol. 29 (2002), p.20.
(4)The temperature of the blanket cylinder does not affect the deformation of the blanket.
Conclusion Temperature is an important issue to affect the normal working of the waterless press.
Before calculating the heat transfer of the cooling roller, need to analyze the heat transfer model and the influence factors, and build an ideal physical model, then analyze each module of the model and calculate the theory formula.
[4] [4]WANG Shuang-cheng, WANG Qian: The calculation of water’s physical properties (The journal of Henan TV University, 2000, p.31) [5] CHENG Hong: Principles and design of the modern printing machinery (China Light Industry Press, Beijing 2007) [6] Wang Ye-ping: Journal of mechanical Vol. 29 (2002), p.20.