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Online since: July 2012
Authors: Andrés L. García Fuentes, Pierre Bazán, Leiry Centeno, Magaly Ramos, Alberto Velázquez Del Rosario
The research focused on characterizing the mechanical properties of the weld; examine the influence of the factors that affect the quality of welding on the mechanical behavior of the joint and to evaluate the influence of the type of load applied the mechanical behavior of the union.
To achieve these aims, the work focused on the factors that affect the quality of welding, such as, welding defects (surface and internal cracks, slag deposits and undermining), microstructure, extent of the HAZ and mechanical properties (profile of hardness, tension, and bending) [5].
Properties Sy Su Elong.
Tensile mechanical properties of the samples under study (results obtained in the laboratory) Fig. 28.
The specimens welded as overlap, suffering deformation around the ductile fracture in, away from the HAZ without affecting the weld, as evidenced in Fig. 30.
To achieve these aims, the work focused on the factors that affect the quality of welding, such as, welding defects (surface and internal cracks, slag deposits and undermining), microstructure, extent of the HAZ and mechanical properties (profile of hardness, tension, and bending) [5].
Properties Sy Su Elong.
Tensile mechanical properties of the samples under study (results obtained in the laboratory) Fig. 28.
The specimens welded as overlap, suffering deformation around the ductile fracture in, away from the HAZ without affecting the weld, as evidenced in Fig. 30.
Online since: July 2012
Authors: Chun Wei Gong, Yin Zhao, De Cheng Feng, Peng Cao
Ball et al explored the factors affecting multiple chip seal layer instability[2].
Fiber seal has been significantly applied in a series of projects since introduced into China in 2007[5,6] because of its superior performance in waterproof, stress absorbing and bonding properties[7].
Conclusions can be drawn from Table 7 and Fig.3: (1) Fiber content is the most important factor affecting the shear strength of fiber seal, next are asphalt content and gravel coverage, test temperature is the smallest factor
Conclusion In this paper, an orthogonal test was developed to explore the factors affecting interlayer shear strength of fiber seal, and the conclusions can be drawn as follows: (1)Visual analysis shows that the shear strength of fiber seal increases firstly, and then decreases with the increment of material content, while decreases monotonically with the increment of temperature
[2] G.F.A.Ball, J.E.Patrick and P.R.Herrington, Factors affecting multiple chip seal layer instability.
Fiber seal has been significantly applied in a series of projects since introduced into China in 2007[5,6] because of its superior performance in waterproof, stress absorbing and bonding properties[7].
Conclusions can be drawn from Table 7 and Fig.3: (1) Fiber content is the most important factor affecting the shear strength of fiber seal, next are asphalt content and gravel coverage, test temperature is the smallest factor
Conclusion In this paper, an orthogonal test was developed to explore the factors affecting interlayer shear strength of fiber seal, and the conclusions can be drawn as follows: (1)Visual analysis shows that the shear strength of fiber seal increases firstly, and then decreases with the increment of material content, while decreases monotonically with the increment of temperature
[2] G.F.A.Ball, J.E.Patrick and P.R.Herrington, Factors affecting multiple chip seal layer instability.
Online since: March 2006
Authors: Ki Tae Kim, Il Ho Kim, Yong Hwan Kim
Effect of Mixing Ratio on Mechanical Properties of Wide-gap Brazed
Ni-based Superalloy with Ni-Si-B Alloy Powder
Y.
It was found that the Ni3B-Ni eutectic and (Cr, W)B in the brazed region are important microstructural factors affecting the mechanical properties of the wide-gap brazed region.
The influence of microstructure on mechanical properties in the brazed region was also investigated.
In order to evaluate the mechanical properties of the wide-gap brazed region, a tensile test was carried out at room temperature and at 900°C.
It was believed that the Ni3B-Ni eutectic and (Cr, W)B in the brazed region were important microstructural factors affecting the room and high temperature mechanical properties of the wide-gap brazed region.
It was found that the Ni3B-Ni eutectic and (Cr, W)B in the brazed region are important microstructural factors affecting the mechanical properties of the wide-gap brazed region.
The influence of microstructure on mechanical properties in the brazed region was also investigated.
In order to evaluate the mechanical properties of the wide-gap brazed region, a tensile test was carried out at room temperature and at 900°C.
It was believed that the Ni3B-Ni eutectic and (Cr, W)B in the brazed region were important microstructural factors affecting the room and high temperature mechanical properties of the wide-gap brazed region.
Online since: June 2018
Authors: Matteo Ciavatta, Ehsan Ghassemali, Ingvar L. Svensson, Keivan A. Kasvayee, Anders E.W. Jarfors
Effect of Boron and Cross-Section Thickness on Microstructure and Mechanical Properties of Ductile Iron
Keivan A.
Effect of boron contamination on the microstructure and mechanical properties of ductile iron, GJS-500-7 grade was studied.
However, the presence of small amounts of this element (even in trace level) in cast irons can affect the microstructure and mechanical properties.
To determine these effects, boron content and section thickness were the factors that were varied.
Jarfors, Mechanical properties of Solid Solution-Strengthened CGI, Int J Cast Metal Res (2016) 1-8
Effect of boron contamination on the microstructure and mechanical properties of ductile iron, GJS-500-7 grade was studied.
However, the presence of small amounts of this element (even in trace level) in cast irons can affect the microstructure and mechanical properties.
To determine these effects, boron content and section thickness were the factors that were varied.
Jarfors, Mechanical properties of Solid Solution-Strengthened CGI, Int J Cast Metal Res (2016) 1-8
Online since: June 2014
Authors: Wei Ping Peng, Chuan Hong Luo, Ting Chen, Fei Bo Dong
Mechanical properties of base metal and joints of 2219AA-T6
Sam
-ple
No.
It reflects that heat treatment can eliminate some effects caused by the factors that weaken the strength.
This experiment try to improve the tensile strength of joints through heat treatment, which can restore the metal’s plasticity, redistribute θ phase, prevent the softening of heat affected zone and eliminate the influence of those inherent weakening factors.
Microstructures and mechanical properties of friction stir welded 2219-T87 aluminum alloy joints[J].
Microstructure and mechanical properties of 2219 aluminum alloy refilling friction stir welded joints [J].
It reflects that heat treatment can eliminate some effects caused by the factors that weaken the strength.
This experiment try to improve the tensile strength of joints through heat treatment, which can restore the metal’s plasticity, redistribute θ phase, prevent the softening of heat affected zone and eliminate the influence of those inherent weakening factors.
Microstructures and mechanical properties of friction stir welded 2219-T87 aluminum alloy joints[J].
Microstructure and mechanical properties of 2219 aluminum alloy refilling friction stir welded joints [J].
Online since: August 2015
Authors: Radhakrishnan Ganesh, J. Saranesh Kumar, R. Satya Prakash, K. Chandrasekaran
Investigation on physical, mechanical and wear properties of SiC particulate reinforced aluminium metal matrix composite
R.Ganesh*, J.Saranesh Kumar, R.Satya Prakash, and K.Chandrasekaran
Department of Mechanical Engineering, R.M.K Engineering College, Kavaraipettai-601206
rg.mech@rmkec.ac.in, saraneshjayapal@gmail.com, satyaprakashr02@gmail.com, kesavan.chandrasekaran@gmail.com
Keywords: Metal Matrix Composite, Sintering temperature, Mechanical properties, Wear
Abstract
The paper presents the results of investigation on physical, mechanical and wear properties of SiC particulate reinforced aluminium metal matrix composite.
The influence of reinforced ratios of 10, 15 and 20 wt. % of SiCp on mechanical properties and wear characters was examined.
But a good understanding of the factors that influence the physical and mechanical properties of these materials is really a challenge because they are sensitive to the type and nature of reinforcement, the mode of manufacture and the details of processing of the composite after initial manufacture.
Ibrahim et al [9] analysed the physical and mechanical properties of particulate reinforced MMCs.
Cimenoglu, Abrasive wear behavior and mechanical properties of Al–Si/SiC composites, Wear, 257 (2004) 625–632
The influence of reinforced ratios of 10, 15 and 20 wt. % of SiCp on mechanical properties and wear characters was examined.
But a good understanding of the factors that influence the physical and mechanical properties of these materials is really a challenge because they are sensitive to the type and nature of reinforcement, the mode of manufacture and the details of processing of the composite after initial manufacture.
Ibrahim et al [9] analysed the physical and mechanical properties of particulate reinforced MMCs.
Cimenoglu, Abrasive wear behavior and mechanical properties of Al–Si/SiC composites, Wear, 257 (2004) 625–632
Online since: September 2013
Authors: Jian Xing Ren, Chen Yu Cao, Zhen Li
Analysis of the Relationship between Electrostatic Dust Removal Efficiency
and Its Factors in Coal-fired Power Plant
LI Zhen1,a CAO Chen-Yu2,b REN Jian-Xing3,c
1Energy and Mechanical Engineering of Shanghai University
of Electric Power,Shanghai,200090,China
2Energy and Mechanical Engineering of Shanghai University
of Electric Power,Shanghai,200090,China
3Energy and Mechanical Engineering of Shanghai University
of Electric Power,Shanghai,200090,China
aemail:zlon_the_way@163.com
bemail:chenyu19880208@126.com
cemail:ren608@163.com
Key words: the dust removal efficiency, emission concentration, the influential factors
Abstract: With the national environmental standards becoming more and more strict, electrostatic precipitators is facing the new challenges, promoting the efficiency further and reducing emissions are essential to achieve the environmental standards.
This paper analyzed the influential factors of the dust removal efficiency of electrostatic precipitators in coal-fired units, and discussed the relationship between dust removal efficiency and its factors, which lay the foundation for improving the dust removal efficiency.
the dust removal efficiency and the factors of electrostatic precipitator (1) Coal properties Burning coal is varied in China's coal-fired power plants, including coal, sulfur content, ash content, moisture content, low calorific value of coal, the elemental analysis of coal composition and so on which have a direct influence on the performance of the electrostatic precipitator.
Figure. 3 The relationship between the specific resistance of dust, the dust removal efficiency and corona current Conclusion It can be concluded that the relationship between the factor and the efficiency of electrostatic precipitator can be learned through the analysis of the affecting factors on dust removal efficiency of electrostatic precipitators, which lay the foundation for improving the dust removal efficiency.
There are many factors affecting the efficiency of ESP, in addition to the specific resistance of dust, the size of dust particle, the secondary dust, the migration speed, as well as the body structure parameters of the electrostatic precipitator, dust characteristics, gas properties and the operation maintenance level etc, they all have important influence on performance of ESP.
This paper analyzed the influential factors of the dust removal efficiency of electrostatic precipitators in coal-fired units, and discussed the relationship between dust removal efficiency and its factors, which lay the foundation for improving the dust removal efficiency.
the dust removal efficiency and the factors of electrostatic precipitator (1) Coal properties Burning coal is varied in China's coal-fired power plants, including coal, sulfur content, ash content, moisture content, low calorific value of coal, the elemental analysis of coal composition and so on which have a direct influence on the performance of the electrostatic precipitator.
Figure. 3 The relationship between the specific resistance of dust, the dust removal efficiency and corona current Conclusion It can be concluded that the relationship between the factor and the efficiency of electrostatic precipitator can be learned through the analysis of the affecting factors on dust removal efficiency of electrostatic precipitators, which lay the foundation for improving the dust removal efficiency.
There are many factors affecting the efficiency of ESP, in addition to the specific resistance of dust, the size of dust particle, the secondary dust, the migration speed, as well as the body structure parameters of the electrostatic precipitator, dust characteristics, gas properties and the operation maintenance level etc, they all have important influence on performance of ESP.
Online since: January 2005
Authors: Tatsuo Sato, Shoichi Hirosawa
These nanoclusters greatly affect the
nucleation of the subsequent precipitates and resultantly mechanical properties.
The precipitation strengthening is one of the most important method to improve mechanical properties.
The precipitate free zones (PFZ) are also an important microstructural factor affecting alloy properties.
The pre-aging greatly affects the age-hardening behavior and mechanical properties of the alloys in a complicated manner.
In order to control nanoclusters controlled heat treatment procedure and microalloying elements are extremely effective factors.
The precipitation strengthening is one of the most important method to improve mechanical properties.
The precipitate free zones (PFZ) are also an important microstructural factor affecting alloy properties.
The pre-aging greatly affects the age-hardening behavior and mechanical properties of the alloys in a complicated manner.
In order to control nanoclusters controlled heat treatment procedure and microalloying elements are extremely effective factors.
Experiment Design with Full Factorial in Gas Tungsten Arc Welding Parameters on Aluminium Alloy 5083
Online since: June 2013
Authors: Prachya Peasura
This research was to study of gas tungsten arc welding (GTAW) welding parameters that affects to the mechanical properties of aluminum alloy AA5083 welding with GTAW.
The specimen to analyses the physical properties has microstructure and hardness of weld metal and heat affected zone.
Many experiments involve the study of the effects of two factor is an interaction between the factors. [10] The factors used in the study of the welding current and type of polarity can be due to two factors that have an interaction on the mechanical and microstructure properties.
Microstructure and Mechanical properties test.Welded samples were sectioned transversely to the weld and polished using standard metallographic techniques.
Factors used in the type of polarity and welding current level of the P-Value of factors was 0.000 (<0.005).
The specimen to analyses the physical properties has microstructure and hardness of weld metal and heat affected zone.
Many experiments involve the study of the effects of two factor is an interaction between the factors. [10] The factors used in the study of the welding current and type of polarity can be due to two factors that have an interaction on the mechanical and microstructure properties.
Microstructure and Mechanical properties test.Welded samples were sectioned transversely to the weld and polished using standard metallographic techniques.
Factors used in the type of polarity and welding current level of the P-Value of factors was 0.000 (<0.005).
Online since: September 2014
Authors: Zakaria Man, Lukman Ismail, Tia Rahmiati, Rosniza Hanim Abdul Rahim, Khairun Azizi Azizli
This paper presents an investigation on the mechanical and physical properties of fly ash based geopolymer by varying solid to liquid ratio using sodium hydroxide as the only activator.
Silicate solution is added for the purpose of providing Si ions in order to increase the dissolution process of the starting raw materials and improve mechanical properties [7].
Thus, the present work to address the effect of solid/liquid ratio on the mechanical and physical properties.
Perraki, “Effect of synthesis parameters on the mechanical properties of fly ash-based geopolymers,” Colloids Surfaces A Physicochem.
Ueng, “Main factors affecting mechanical characteristics of geopolymer revealed by experimental design and associated statistical analysis,” Constr.
Silicate solution is added for the purpose of providing Si ions in order to increase the dissolution process of the starting raw materials and improve mechanical properties [7].
Thus, the present work to address the effect of solid/liquid ratio on the mechanical and physical properties.
Perraki, “Effect of synthesis parameters on the mechanical properties of fly ash-based geopolymers,” Colloids Surfaces A Physicochem.
Ueng, “Main factors affecting mechanical characteristics of geopolymer revealed by experimental design and associated statistical analysis,” Constr.