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Online since: October 2014
Authors: Wojciech Borek, Leszek Adam Dobrzański, Krzysztof Labisz, Tomasz Tański, Małgorzata Czaja
Mechanical properties (and sometimes physical) depend largely on the structure of the material.
High-temperature treatment means, that if the thermo-mechanical treatment is carried out at a temperature above the austenite recrystallization temperature and a subsequent deformation occurs at lower and lower temperatures, with reduction rates of about 30% and results in an improved ductility and plastic properties with little change of the strength properties.
Parameters of the hot rolling process were developed assuming that the size reduction rates is determined by the allowable pressure force range affecting on the roller.
The fine-grained structure has no influence on a phase composition of steel and should increase mechanical properties during subsequent cold plastic deformations.
These factors have led to the lack of a uniform structure fragmentation of the rolled material.
High-temperature treatment means, that if the thermo-mechanical treatment is carried out at a temperature above the austenite recrystallization temperature and a subsequent deformation occurs at lower and lower temperatures, with reduction rates of about 30% and results in an improved ductility and plastic properties with little change of the strength properties.
Parameters of the hot rolling process were developed assuming that the size reduction rates is determined by the allowable pressure force range affecting on the roller.
The fine-grained structure has no influence on a phase composition of steel and should increase mechanical properties during subsequent cold plastic deformations.
These factors have led to the lack of a uniform structure fragmentation of the rolled material.
Online since: November 2011
Authors: Lai Wang Jing, Jun Wei Zhou, Li Ping Ye, Ke Xiu Zhao, Xue Gui Xue, Peng Wei Hao
Focus on the structure design of the wall, the main factors of influence rupture, mechanical characteristics of side wall and etc.
There is a wide shrinking of space in the design of the thickness of shaft wall due to these two factors
Vertical pressure is one of the important factors in the design of shaft lining structure, as there is a close correlation between its with vertical additional force, then its become a very important factors in the field of related research.
The affecting factors analysis on the shearing characteristic of the interface under high pressure [J].
Engineering properties of two grouting techniques in mending shaft-lining ruptures [J].
There is a wide shrinking of space in the design of the thickness of shaft wall due to these two factors
Vertical pressure is one of the important factors in the design of shaft lining structure, as there is a close correlation between its with vertical additional force, then its become a very important factors in the field of related research.
The affecting factors analysis on the shearing characteristic of the interface under high pressure [J].
Engineering properties of two grouting techniques in mending shaft-lining ruptures [J].
Online since: January 2012
Authors: Chun Kan Hou, Jian Ming Tzeng
As percentage of abnormal growth increased, magnetic properties got better.
Its magnetic properties affect the energy efficiency of transformers and are closely related to the sharpness of (110)<001> texture [1].
On the other hand, many factors such as grain size, texture, volume fraction and size of precipitates in the primary annealing matrix had been shown to affect the texture development and magnetic properties of grain oriented electrical steel during secondary recrystallization annealing [5-9].
Magnetic properties were closely related to percentage of abnormal grain growth.
As percentage of abnormal growth increased, magnetic properties got better.
Its magnetic properties affect the energy efficiency of transformers and are closely related to the sharpness of (110)<001> texture [1].
On the other hand, many factors such as grain size, texture, volume fraction and size of precipitates in the primary annealing matrix had been shown to affect the texture development and magnetic properties of grain oriented electrical steel during secondary recrystallization annealing [5-9].
Magnetic properties were closely related to percentage of abnormal grain growth.
As percentage of abnormal growth increased, magnetic properties got better.
Online since: December 2012
Authors: Ji Kang Yan, Guo You Gan, Jing Hong Du, Jia Min Zhang, Jian Hong Yi, Yi Chun Liu
The process factors such as the sintering temperature, the sintering time, the heating rate, the compaction density, the compaction methods, and the alloy system, would affect the sintering densification of TiH2 powders and TiH2-Al-V alloy powder.
If the parameters of sintering are controlled properly, the physical and mechanical properties of material could satisfy the requirement.
The properties of dehydrogenation were studied.
The results of properties of compacts sintered at different conditions are shown in Table 5.
The results show that the density and densification of compacts are influenced by some factors involving temperature, the system of alloy, the density of compacts.
If the parameters of sintering are controlled properly, the physical and mechanical properties of material could satisfy the requirement.
The properties of dehydrogenation were studied.
The results of properties of compacts sintered at different conditions are shown in Table 5.
The results show that the density and densification of compacts are influenced by some factors involving temperature, the system of alloy, the density of compacts.
Online since: November 2006
Authors: Shan Suo Zheng, Guo Zhuan Deng, Wei Tian
A calculating method of fracture toughness of bond
interface is provided, and the main parameters significantly affecting the fracture toughness are
discussed quantitatively.
Some parameters of mechanical behaviors of bond interface can be determined by weighing damage factors from initial state to final state because the mechanical behaviors of bond interface evolve from initial state to final state [2].
The constants of material properties in Eq. 1 should be those of the bond interface.
The micro-cracks can influence fracture properties of bond interface [1].
The influence of micro-crack fracture process zone of crack point in bond interface on bond-slip fracture properties need to be considered in bond-slip failure.
Some parameters of mechanical behaviors of bond interface can be determined by weighing damage factors from initial state to final state because the mechanical behaviors of bond interface evolve from initial state to final state [2].
The constants of material properties in Eq. 1 should be those of the bond interface.
The micro-cracks can influence fracture properties of bond interface [1].
The influence of micro-crack fracture process zone of crack point in bond interface on bond-slip fracture properties need to be considered in bond-slip failure.
Online since: August 2018
Authors: Alakesh Manna, Sarbjit Singh, Parvesh Antil
The acceptability of polymer matrix composites for various industrial applications has been increased over the years due to their better mechanical properties.
It affects the drilling behavior of the composites by high tool wear and higher surface roughness of the drilled hole[3].
MRR = 0.81576 + 0.002733×Voltage + 0.0013×Electrolyte Concentration + 0.00613×Duty Factor (Eq. 1) Taper = 0.04751 + 0.0000733×Voltage - 0.000055×Electrolyte Concentration - 0.0005925×Duty Factor (Eq. 2) Genetic Algorithm Genetic Algorithm is a mathematical model which helps in finding an optimal solution when the response is affected by various process parameters.
Duty factor has limited effect on OQCs of ECDM
Manna, A Study on Input Parameters Affecting Material Removal Rate and Surface Roughness in Electrochemical Discharge Machining Process, International Journal of Advance Research in Science and Technology, 3(12) (2014) 400-405
It affects the drilling behavior of the composites by high tool wear and higher surface roughness of the drilled hole[3].
MRR = 0.81576 + 0.002733×Voltage + 0.0013×Electrolyte Concentration + 0.00613×Duty Factor (Eq. 1) Taper = 0.04751 + 0.0000733×Voltage - 0.000055×Electrolyte Concentration - 0.0005925×Duty Factor (Eq. 2) Genetic Algorithm Genetic Algorithm is a mathematical model which helps in finding an optimal solution when the response is affected by various process parameters.
Duty factor has limited effect on OQCs of ECDM
Manna, A Study on Input Parameters Affecting Material Removal Rate and Surface Roughness in Electrochemical Discharge Machining Process, International Journal of Advance Research in Science and Technology, 3(12) (2014) 400-405
Online since: November 2011
Authors: Zheng Jia He, Bing Li, Hong Rui Cao
The mechanical faults change the dynamic properties of the machine tool system, which affect the quality of the workpiece.
However, extensive machining experiences have demonstrated that, the geometric quality of the workpiece is not only determined by the designed tool path, but also affected by other factors such as machine tool structural dynamics, cutting process dynamics and fixture error.
From Eq.(7), it can be seen that the relative displacement of the tool-workpiece system X(s) affects the quality of the product Z(s) largely.
The mechanical faults change the dynamic properties of the machine tool system, which affect the quality of the workpiece.
Gao and Z.S.Zhang, Fault diagnosis principles of non-stationary signal and applications to mechanical equipment, High Education Press, Beijing, 2001, pp1-2
However, extensive machining experiences have demonstrated that, the geometric quality of the workpiece is not only determined by the designed tool path, but also affected by other factors such as machine tool structural dynamics, cutting process dynamics and fixture error.
From Eq.(7), it can be seen that the relative displacement of the tool-workpiece system X(s) affects the quality of the product Z(s) largely.
The mechanical faults change the dynamic properties of the machine tool system, which affect the quality of the workpiece.
Gao and Z.S.Zhang, Fault diagnosis principles of non-stationary signal and applications to mechanical equipment, High Education Press, Beijing, 2001, pp1-2
Online since: July 2010
Authors: Ree Ho Kim, Jong Bin Park, Hee Bum Pyun, Sang Ho Lee
Experiments are ongoing to measure the properties of the blocks for further application as a
new construction material.
Some factors affecting the formation of a heat island are the intensive use of asphalt and diverse construction materials, mainly concrete [1].
Fig. 4 Absorption of WRB Fig. 5 Volume of water-retention of WRB Fig. 6 Compressive strength of WRB Fig. 7 Surface temperature of WRB Mechanical properties of water-retentive block Compressive strength of WRB was shown in Fig. 6.
Thermal properties of water-retentive block The surface temperature of block pavement was monitored as shown in Fig. 7.
Experiments are ongoing to measure the properties of the blocks for further application as a new construction material.
Some factors affecting the formation of a heat island are the intensive use of asphalt and diverse construction materials, mainly concrete [1].
Fig. 4 Absorption of WRB Fig. 5 Volume of water-retention of WRB Fig. 6 Compressive strength of WRB Fig. 7 Surface temperature of WRB Mechanical properties of water-retentive block Compressive strength of WRB was shown in Fig. 6.
Thermal properties of water-retentive block The surface temperature of block pavement was monitored as shown in Fig. 7.
Experiments are ongoing to measure the properties of the blocks for further application as a new construction material.
Online since: November 2015
Authors: K. Palani, C. Elanchezhian
The three factors, five level rotatable central composite design are selected to optimize the responses of friction stir welded AA 8011 aluminium alloys.
Huijie Zhang et al., [9] mathematically developed the models to predict the tensile strength of underwater FSWed aluminum alloys and the rotational and travel speeds are the predominant factors that affect the tensile behavior of the welded materials.
Elatharasan G et al., [10] examined the tensile properties of friction stir welded AA 6061-T6 aluminium alloys with the optimum conditions.
Table 1 Chemical compositions and mechanical properties of AA 8011 aluminum alloy Chemical composition (Wt. %) Mechanical properties Al Cu Fe Si Mn Mg Zn Ti Tensile Strength Elongation % Density Kg/m3 Bal 0.13 0.7 0.5 0.5 0.3 0.1 0.02 110 MPa 25 2689 The chemical composition, mechanical properties of AA 8011 aluminium alloy plates are shown in Table 1.
From this investigation, · The mechanical properties of welded alloy plates reveals the good quality of weld based on the strength and hardness
Huijie Zhang et al., [9] mathematically developed the models to predict the tensile strength of underwater FSWed aluminum alloys and the rotational and travel speeds are the predominant factors that affect the tensile behavior of the welded materials.
Elatharasan G et al., [10] examined the tensile properties of friction stir welded AA 6061-T6 aluminium alloys with the optimum conditions.
Table 1 Chemical compositions and mechanical properties of AA 8011 aluminum alloy Chemical composition (Wt. %) Mechanical properties Al Cu Fe Si Mn Mg Zn Ti Tensile Strength Elongation % Density Kg/m3 Bal 0.13 0.7 0.5 0.5 0.3 0.1 0.02 110 MPa 25 2689 The chemical composition, mechanical properties of AA 8011 aluminium alloy plates are shown in Table 1.
From this investigation, · The mechanical properties of welded alloy plates reveals the good quality of weld based on the strength and hardness
Online since: March 2016
Authors: Guo Liang Xie, Qiang Song Wang, Xue Cheng Gao, Dong Mei Liu, Xu Jun Mi, Wei Bin Xie, Yang Li
Introduction
Because of excellent mechanical properties, Cu-20Ni-20Mn alloy are widely used in many industries, such as mining industry and electrical equipment [1].
However, the grain will grow up during solution heat treatment, which results in the changes of the mechanical properties.
Mechanical behavior.
According to their result, the value of kHP is generally affected by texture.
Mackay, Optimization of the solution heat treatment process to improve mechanical properties of 319 Al alloy engine blocks using the billet casting method.
However, the grain will grow up during solution heat treatment, which results in the changes of the mechanical properties.
Mechanical behavior.
According to their result, the value of kHP is generally affected by texture.
Mackay, Optimization of the solution heat treatment process to improve mechanical properties of 319 Al alloy engine blocks using the billet casting method.