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Online since: December 2009
Authors: T. Shahrabi, Taha Rostamzadeh, H. Shahverdi, A. Shanaghi
Most of the studies on particle reinforcement composites have been carried out to evaluate the
physical, mechanical and tribological properties, but some studies have been conducted to evaluate
the individual effects of corrosion and erosion [14].
However, this is dependent on phase combinations or other factors which form or occur at 520°C, and the nature of this event has not yet been fully understand.
A number of factors affected the corrosion behavior of nanocomposites, including nanocomposite composition, size and distribution of components.
Mitkov, The influence of SiC particles on the compressive properties of metal matrix composites.
Clark, K.T.Aust, U.Er, Mechanical properties of nickel silicon carbide nanocomposite.
However, this is dependent on phase combinations or other factors which form or occur at 520°C, and the nature of this event has not yet been fully understand.
A number of factors affected the corrosion behavior of nanocomposites, including nanocomposite composition, size and distribution of components.
Mitkov, The influence of SiC particles on the compressive properties of metal matrix composites.
Clark, K.T.Aust, U.Er, Mechanical properties of nickel silicon carbide nanocomposite.
Online since: July 2013
Authors: Zhao Yun Zhang, Zhi Gui Shi, Xiao Ping He, Lian Ming Du, Hui Zhang, Bo Peng
INTRODUCTION
In recent years, the SOI (silicon on insulator) which structure layer is Monocrystalline material has paid widespread attention in the study of the micro-mechanical devices.
Factors like wafer temperature, size of the release holes, and the thickness and amount of BOX layer to be etched determine the lateral etch rate, which was experimentally determined by measuring the undercut in the BOX layer after a certain amount of etching time.
Study of the Corrosive Property of Metal Electrode[J].Chinese Journal of Sensors And Actu ators,2012,25(3):326-328
In:Proceedings of Micro Mechanical Systems,IEEE, 1993,71-76
Study of the Factors Affecting the Sacrificial Layer’s Etching Rate[J].
Factors like wafer temperature, size of the release holes, and the thickness and amount of BOX layer to be etched determine the lateral etch rate, which was experimentally determined by measuring the undercut in the BOX layer after a certain amount of etching time.
Study of the Corrosive Property of Metal Electrode[J].Chinese Journal of Sensors And Actu ators,2012,25(3):326-328
In:Proceedings of Micro Mechanical Systems,IEEE, 1993,71-76
Study of the Factors Affecting the Sacrificial Layer’s Etching Rate[J].
Online since: May 2020
Authors: Tat'yana A. Lisovskaya, L.V. Radionova, M.A. Sosedkova, A.S. Grigorenko, Viacheslav D. Lezin
Temperature conditions largely determine the quality of the finished product, its structure and properties.
, (1) where is temperature loss during rolling and transportation in the mill train; is strip heating during deformation; is temperature increase in the furnace of the mill production line; are factors affecting the change in the process strip temperature; are factors contributing to the cooling of the metal during rolling and transportation in the mill train; are factors causing the heating of the process strip during plastic strain; is furnace in the rolling mill line. 1- approach table; 2 - pusher; 3 - heating furnace; 4 - extractor; 5 – trailer table; 6 - vertical rolls; 7 - rough reverse two-high mill stand; 8 - gearbox; 9 - electric motor; 10 – furnace coiler; 11– four-high stand; 12 – roll-changing device; 13 - outgoing roller table; 14 - coiler; 15 - rotaror; 16 - conveyor Fig. 1.
The circuit arrangement of equipment two-cage Steckel mill We obtain a formula for calculating the change in the temperature of the metal at the point of the technological process, taking into account factors affecting the temperature of the metal during rolling and transportation in the mill train. [19] , (2) where is strip temperature in process point; is temperature loss due to thermal radiation; is temperature loss due to convective heat transfer with the environment; is temperature loss due to contact heat transfer; is heating the strip in the deformation zone due to the energy of plastic strain; is temperature rise in the coiler in furnaces.
The model allows us to analyze temperature fields along the coil section and to optimize the technological modes of rolling in order to achieve a certain and uniform distribution of the strip temperature over the coil section, which will allow us to obtain high-quality rolled products with desired properties.
Buzhlanov, Application of mathematical models for prediction of microstructure and mechanical properties of rods of high carbon steel grades, MSTU Newsteller, 24 (2008) 73-75 [7] L.V.
, (1) where is temperature loss during rolling and transportation in the mill train; is strip heating during deformation; is temperature increase in the furnace of the mill production line; are factors affecting the change in the process strip temperature; are factors contributing to the cooling of the metal during rolling and transportation in the mill train; are factors causing the heating of the process strip during plastic strain; is furnace in the rolling mill line. 1- approach table; 2 - pusher; 3 - heating furnace; 4 - extractor; 5 – trailer table; 6 - vertical rolls; 7 - rough reverse two-high mill stand; 8 - gearbox; 9 - electric motor; 10 – furnace coiler; 11– four-high stand; 12 – roll-changing device; 13 - outgoing roller table; 14 - coiler; 15 - rotaror; 16 - conveyor Fig. 1.
The circuit arrangement of equipment two-cage Steckel mill We obtain a formula for calculating the change in the temperature of the metal at the point of the technological process, taking into account factors affecting the temperature of the metal during rolling and transportation in the mill train. [19] , (2) where is strip temperature in process point; is temperature loss due to thermal radiation; is temperature loss due to convective heat transfer with the environment; is temperature loss due to contact heat transfer; is heating the strip in the deformation zone due to the energy of plastic strain; is temperature rise in the coiler in furnaces.
The model allows us to analyze temperature fields along the coil section and to optimize the technological modes of rolling in order to achieve a certain and uniform distribution of the strip temperature over the coil section, which will allow us to obtain high-quality rolled products with desired properties.
Buzhlanov, Application of mathematical models for prediction of microstructure and mechanical properties of rods of high carbon steel grades, MSTU Newsteller, 24 (2008) 73-75 [7] L.V.
Online since: January 2012
Authors: Qiao Ling Liu, Tian Xiao Zhang, Hai Feng Xing
Because design parameters are uncertain, different design parameters of the mechanical structure have different effect, we can determine the reliability of the design parameters to affect the reliability of mechanical structure by sensitivity analysis and the reliability sensitivity analysis has become an important part of the design.
It has a good damping property, saving materials, reducing weight and so on.
In engineering design, variable cross-section components are widely used due to its good mechanical property, such as cantilever brackets, circular hollow vertical rod, etc.
Example In general, if the geometric dimensions and material properties are normal distribution random variable, deflection and material properties are mutually independent random variables.
In the integration process from analysis to design, we can grasp the important design factors, and understand the design, manufacture, basic data statistics and so on, the simplification is an important design parameter.
It has a good damping property, saving materials, reducing weight and so on.
In engineering design, variable cross-section components are widely used due to its good mechanical property, such as cantilever brackets, circular hollow vertical rod, etc.
Example In general, if the geometric dimensions and material properties are normal distribution random variable, deflection and material properties are mutually independent random variables.
In the integration process from analysis to design, we can grasp the important design factors, and understand the design, manufacture, basic data statistics and so on, the simplification is an important design parameter.
Online since: July 2012
Authors: Hua Shun Yu, Hong Mei Chen, Guang Hui Min, Yun Xue Jin
There are a number of factors may influence the shape and distribution of basal texture, including rolling stress, deformation temperature, rolling passes, per pass rolling reduction, strip thickness, roll diameter, grain size (this refers to the original grain size), shear banding , second-phase particles and so on[6].
The specimens for optical microstructural observation were prepared by mechanical polishing with polycrystalline diamond suspension glycol based solution.
The yield strength of magnesium alloy greatly affected by slip plane and slip orientation of the grain and the orientation of applied stress, which is Schmid Factor.
Grain size and grain orientation distribution function affect the mechanical property of magnesium alloy with texture, the existence of texture results in the anisotropy of magnesium alloy sheet [7].
The essence of the effect of texture on mechanical property of magnesium alloy is to change the slip system, especially to change the Schmid Factor of(0001)[110] basal slip system, thus to strengthen or weaken the texture.
The specimens for optical microstructural observation were prepared by mechanical polishing with polycrystalline diamond suspension glycol based solution.
The yield strength of magnesium alloy greatly affected by slip plane and slip orientation of the grain and the orientation of applied stress, which is Schmid Factor.
Grain size and grain orientation distribution function affect the mechanical property of magnesium alloy with texture, the existence of texture results in the anisotropy of magnesium alloy sheet [7].
The essence of the effect of texture on mechanical property of magnesium alloy is to change the slip system, especially to change the Schmid Factor of(0001)[110] basal slip system, thus to strengthen or weaken the texture.
Online since: July 2011
Authors: Sheng Sun, Pun Jun Jin
Introduction
Silicones are a family of polymers which have the extraordinary range of properties.
Select properties of the silicone as follows [7,9]: Strength and stability.
(High water repellency, extremely strong adhesion qualities, microbial resistance, anti-foaming properties, anti-foaming properties) With a low surface tension of 20.4 mN/m, silicone easily wets most surfaces.
The most prominent factors affecting these structures are the environment, pollution, and tourism.
In view of silicone water repellent properties and outstanding aging resistance, silicones are vital to the construction conservation and they are used in waterproofing treatments, mechanical seals, caulking compounds and etc.
Select properties of the silicone as follows [7,9]: Strength and stability.
(High water repellency, extremely strong adhesion qualities, microbial resistance, anti-foaming properties, anti-foaming properties) With a low surface tension of 20.4 mN/m, silicone easily wets most surfaces.
The most prominent factors affecting these structures are the environment, pollution, and tourism.
In view of silicone water repellent properties and outstanding aging resistance, silicones are vital to the construction conservation and they are used in waterproofing treatments, mechanical seals, caulking compounds and etc.
Online since: September 2015
Authors: Li Qiang Peng, Li Xin Wang, Ya Yan Gao, Li Gang Zhai
Based on excellent wear-resisting properties of locust’s non-smooth surface structure, bionic brake disc with special surface micro-structure was designed.
However, with the related research in the field of bionics, it was found that biological non-smooth surface exhibits better wear resistant properties under the stick wet condition [5].
After biopsy and surface physical properties analysis, non-smooth shapes presented variation in different parts of locust surface.
In initial velocity of 100 km/h, for example, equivalent stress of smooth braking disc is 61.9 KPa under the thermal structure coupling, significantly greater than 32.7 KPa at the end of the stress field, showing the thermal stress is one of the most important factors to damage brake disc structure.
Conclusions (1) Based on the excellent wear-resisting properties of locust’s non-smooth surface structure, bionic brake disc with special surface micro-structure was designed
However, with the related research in the field of bionics, it was found that biological non-smooth surface exhibits better wear resistant properties under the stick wet condition [5].
After biopsy and surface physical properties analysis, non-smooth shapes presented variation in different parts of locust surface.
In initial velocity of 100 km/h, for example, equivalent stress of smooth braking disc is 61.9 KPa under the thermal structure coupling, significantly greater than 32.7 KPa at the end of the stress field, showing the thermal stress is one of the most important factors to damage brake disc structure.
Conclusions (1) Based on the excellent wear-resisting properties of locust’s non-smooth surface structure, bionic brake disc with special surface micro-structure was designed
Online since: August 2025
Authors: Hernán Gabriel Svoboda, Pere Barriobero-Vila, Mariana Poliserpi, Gerardo González, Sebastián Zappa, Mónica Zalazar
Chemical composition (wt.%) and mechanical properties of the base metals and filler metal.
Since secondary austenite affects corrosion and mechanical properties, its nucleation must be controlled.
The exceptional combination of corrosion and mechanical properties in DSSs, are a consequence of their balanced microstructure.
Different factors affect the microhardness of WM and HAZ such as phase balance, microstructure (morpologhy of A), F and A solid solution hardening, nitrides formation, etc.
The impact of the microstructure formed needs to be investigated, especially with respect to corrosion and mechanical properties.
Since secondary austenite affects corrosion and mechanical properties, its nucleation must be controlled.
The exceptional combination of corrosion and mechanical properties in DSSs, are a consequence of their balanced microstructure.
Different factors affect the microhardness of WM and HAZ such as phase balance, microstructure (morpologhy of A), F and A solid solution hardening, nitrides formation, etc.
The impact of the microstructure formed needs to be investigated, especially with respect to corrosion and mechanical properties.
Online since: June 2012
Authors: Peng Qi, Gang Wang, Guang Yang, Lan Yun Qin, Hong You Bian, Lei Cai, Qiang Wei, Li Juan Jiang, Wei Wang
The heat affected zone affected by PEMS is apparently uniform in Fig. 2 (b).
The other is that the mechanical effects caused by the PEMS give rise to the rotary motion of the liquid metal, generate strong mechanical erosion to the interface of the liquid and solid in the molten pool, interrupt the primary dendrite arm and reform fine crystal block [6].
It is because that B0 is the most influential factor to magnify the electromagnetic thrust in the pool.
It is because in a rotary magnetic field, the columnar grain refinement is prompted and tends to be uniformly distributed and the mechanical properties of the parts are also improved.
It mainly contains following aspects: (1) PEMS affects the heat affected zone of TA15 LMD obviously.
The other is that the mechanical effects caused by the PEMS give rise to the rotary motion of the liquid metal, generate strong mechanical erosion to the interface of the liquid and solid in the molten pool, interrupt the primary dendrite arm and reform fine crystal block [6].
It is because that B0 is the most influential factor to magnify the electromagnetic thrust in the pool.
It is because in a rotary magnetic field, the columnar grain refinement is prompted and tends to be uniformly distributed and the mechanical properties of the parts are also improved.
It mainly contains following aspects: (1) PEMS affects the heat affected zone of TA15 LMD obviously.
Online since: February 2014
Authors: Zheng Yong Cheng, Sheng Zhang, Wen Juan Gu, Bang Gui He, Ying Li
Compared with conventional friction, organ surfaces have different shapes, the elastic modulus and surface properties, so the investigator brought greater difficulties.
It connect with material science, the theory of friction, surface processing technology, the actual working condition and other factors.
Surface texture of the shape, size, distribution and density is considered to be one of the most important parameters affecting characteristics of friction pair.
Chinese Journal of Mechanical Engineering,2004, 40(11) 1-5
Chinese Journal of Mechanical Engineering, 2007, 43(10)
It connect with material science, the theory of friction, surface processing technology, the actual working condition and other factors.
Surface texture of the shape, size, distribution and density is considered to be one of the most important parameters affecting characteristics of friction pair.
Chinese Journal of Mechanical Engineering,2004, 40(11) 1-5
Chinese Journal of Mechanical Engineering, 2007, 43(10)