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Cryogenic Temperature and Strain Rate Dependence of Mechanical Properties for Extruded AA6060 Alloys
Online since: June 2014
Authors: Trond Furu, Hans Jørgen Roven, Zhi Hong Jia, Ze Bing Xu
Tensile properties and fracture behavior of an AA6060 alloy were investigated at room temperature (295K) and cryogenic temperature (77K).
The changes in mechanical properties were thought to be due to a higher working hardening rate at low temperature, while the effect of strain rate on strain hardening was obscure at both temperatures.
Fig. 7b and c show the evolution of Schmid factors after 50% compression at a strain rate of 10-4s-1.
The Schmid factors are separated into different ranges and are represented in different colors.
Evolution of Schmid factors after 50% compression at a strain rate of 10-4s-1 at 77K and 295K.
The changes in mechanical properties were thought to be due to a higher working hardening rate at low temperature, while the effect of strain rate on strain hardening was obscure at both temperatures.
Fig. 7b and c show the evolution of Schmid factors after 50% compression at a strain rate of 10-4s-1.
The Schmid factors are separated into different ranges and are represented in different colors.
Evolution of Schmid factors after 50% compression at a strain rate of 10-4s-1 at 77K and 295K.
Online since: October 2010
Authors: Wen Lei, Xiao Yan Ding, Chi Xu
Effect of Compatibilizing Agent on Mechanical and Thermal Properties of Wood-Plastic Composites
Wen Lei1, a, Xiao-yan Ding1, band Chi Xu1, c
College of Science,Nanjing Forestry University,nanjing210037,China
aleiwen67@163.com,bnjfu-polymer@163.com,cnjfu01@21cn.com
Keywords: wood-plastic composite; mechanical property; thermal property,compatibilizing agent
Abstract.
The effects of the content of MAPP on the mechanical and thermal properties of WPC were investigated.
Many factors have effects on the life, among which, mechanical and thermal properties are two key ones, so it is very significant to improve the mechanical and thermal properties of WPC.
In this study, MAPP is selected as the compatibilizing agent between WF and PP, and the effects of the content of MAPP on the mechanical properties of WPC are shown in Fig.1.
However, the modulus of the composite is generally affected by many factors, such as the length, orientation and volume fraction of the fiber as well as the porosity inside the fiber[5], thus the variation of the modulus is accordingly uncertained, and always no definite tendency can be used to describe the changes for all kinds of moduli.
The effects of the content of MAPP on the mechanical and thermal properties of WPC were investigated.
Many factors have effects on the life, among which, mechanical and thermal properties are two key ones, so it is very significant to improve the mechanical and thermal properties of WPC.
In this study, MAPP is selected as the compatibilizing agent between WF and PP, and the effects of the content of MAPP on the mechanical properties of WPC are shown in Fig.1.
However, the modulus of the composite is generally affected by many factors, such as the length, orientation and volume fraction of the fiber as well as the porosity inside the fiber[5], thus the variation of the modulus is accordingly uncertained, and always no definite tendency can be used to describe the changes for all kinds of moduli.
Online since: September 2014
Authors: Wen Guang Liu, Cheng Yan
Impacts of temperature on Mechanical Properties of FGMs
Wenguang Liu1, a, Cheng Yan2, b
1,2School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang City 330063, Jiangxi Province, P R China
aliuwg14@163.com, bMeyancheng@163.com
Keywords: FGM; Hypersonic Vehicle; Material Properties
Abstract.
According to the Hypersonic Vehicle harsh environment, impacts of temperature on the mechanical properties for functionally gradient materials are studied.
It can be shown that the combustion chamber wall was affected by liquid hydrogen.
Consider all different kinds of factors; we can deduce that the heat-resistant ceramic suit for a high temperature side and metal material suit for low temperature side because of its high mechanical strength.
Variations of mechanical properties in FGMs through the thickness in room temperature, linear, nonlinear and sinusoidal thermal conditions are presented in the following Figures.
According to the Hypersonic Vehicle harsh environment, impacts of temperature on the mechanical properties for functionally gradient materials are studied.
It can be shown that the combustion chamber wall was affected by liquid hydrogen.
Consider all different kinds of factors; we can deduce that the heat-resistant ceramic suit for a high temperature side and metal material suit for low temperature side because of its high mechanical strength.
Variations of mechanical properties in FGMs through the thickness in room temperature, linear, nonlinear and sinusoidal thermal conditions are presented in the following Figures.
Online since: June 2010
Authors: Wei Shu, Shu Rui Li, Xin Lai He, Xue Min Wang
The low carbon steels are smelted with
special oxide introduction technique and the properties of HAZ has been studied with
thermo-simulation.
The optical microscope and SEM were used to analyze the size, composition and distribution of the inclusions, the mechanical properties after thermo-simulation was also analyzed.
Furthermore, prior austenite grain size is also an important factor affecting the nuclei of IAF [4-5].
It also has been explained that the difference of low-temperature toughness from the factors such as inclusion's distribution, density and prior austenite grain size.
There are two reasons that oxide inclusions can promote the property of HAZ.
The optical microscope and SEM were used to analyze the size, composition and distribution of the inclusions, the mechanical properties after thermo-simulation was also analyzed.
Furthermore, prior austenite grain size is also an important factor affecting the nuclei of IAF [4-5].
It also has been explained that the difference of low-temperature toughness from the factors such as inclusion's distribution, density and prior austenite grain size.
There are two reasons that oxide inclusions can promote the property of HAZ.
Online since: October 2014
Authors: Aleksandr I. Potekaev, Vladimir D. Klopotov, Аnatoliy A. Klopotov
Structural- phase states and mechanical properties of VK8 alloy after gamma-quanta irradiation
Аnatolii А.
This article on the basis of experimental studies shows the data about g- quanta affecting VK8 alloy.
Let us consider in greater detail the factors affecting the mechanical properties of solid solutions of the WC-Co type.
Intragranular structure can significantly affect the properties of the alloy.
Another factor influencing the properties of the alloy can be a various solubility of tungsten carbide in cobalt.
This article on the basis of experimental studies shows the data about g- quanta affecting VK8 alloy.
Let us consider in greater detail the factors affecting the mechanical properties of solid solutions of the WC-Co type.
Intragranular structure can significantly affect the properties of the alloy.
Another factor influencing the properties of the alloy can be a various solubility of tungsten carbide in cobalt.
Online since: October 2014
Authors: Gong Zhong Wang
Based on the important role in aspects of Backfill mining technology in mining to resolve the deep pressure , maintain the slope steady, control the surface sinking and protect the ecological environment, this article probes the relationship between filling material strength to gangue for coarse aggregate ,to coal ash for fine aggregate, to cement and waterglass for binder and influencing factors, and researches the strength properties and the deformation properties of filling objects used for engineering practice, which gets good filling effect.
In recent years, domestic and foreign scholars study on the mechanical properties and failure characteristics of the filling material, and made some research that has guiding significance.
In this paper, the relationship between filling material that coal gangue as coarse aggregate, coal ash as fine aggregate, cement +water glass as the binder strength and influence factors, filling the uniaxial basic mechanical properties were studied. and apply it to the test stope, to obtain a good filling effect.
The mechanical properties of the pumping coal gangue filling mass The pumping waste filling material.
Analysis of the factors that affect the filler mass strength Cementitious Material.
In recent years, domestic and foreign scholars study on the mechanical properties and failure characteristics of the filling material, and made some research that has guiding significance.
In this paper, the relationship between filling material that coal gangue as coarse aggregate, coal ash as fine aggregate, cement +water glass as the binder strength and influence factors, filling the uniaxial basic mechanical properties were studied. and apply it to the test stope, to obtain a good filling effect.
The mechanical properties of the pumping coal gangue filling mass The pumping waste filling material.
Analysis of the factors that affect the filler mass strength Cementitious Material.
Online since: March 2021
Authors: Jong Ryeol Kim, Chang Seon Shon, Kirill Kryzhanovskiy, Inzhu Mukangali, Dichuan Zhang
The Relationship between the Physical and Mechanical Properties of the NAAC.
Figure 2 shows the relationship between the physical and mechanical properties of the NAAC.
Since the density of concrete is also affected by the porosity of concrete, the porosity is a key factor for the relationships between these physical properties and strength.
There are many factors to influence the porosity of concrete related to concrete strength.
physical, mechanical, and thermal properties of mortar mixture containing common reed fiber.
Figure 2 shows the relationship between the physical and mechanical properties of the NAAC.
Since the density of concrete is also affected by the porosity of concrete, the porosity is a key factor for the relationships between these physical properties and strength.
There are many factors to influence the porosity of concrete related to concrete strength.
physical, mechanical, and thermal properties of mortar mixture containing common reed fiber.
Online since: October 2010
Authors: De Yi Wu, Ai Lang Wang, Hua Qiang Liang
An Analysis on Influencing Factors of Interlayer Separation of Complex Roof in Deep Coal Mining
Deyi Wu*,1 and Ailang Wang*,2 and Huaqiang Liang*,3
*Anhui institution of architecture and industry, Anhui Hefei 230022, China
1wudeyi136@163.com, 2ailanwang6712@aiai.edu.cn,3lhqcumt2000@163.com
Keywords: Numerical simulation, Normal stress distribution of construction, Interlayer separation distribution of construction, Influencing factors on interlayer separation.
Through ANSYS program simulation by construction element and D-P yield criterion, influencing factors on construction normal stress and interlayer separation were analyzed, the results could be applied by engineering practice.
Layer Elastic Modulus /MPa Poissn Ratio Cohesive Force /MPa Internal Friction Angle/º Ⅱ 4E09 0.3 2.0 28 Ⅲ 4E09 0.3 5.0 30 Table 1 Rock mechanical parameters Figure 1 Simulation model The Influencing Factors on Construction Separation in Deep Mining Original Rock Stress.
Figure8 Normal stress distribution Figure9 Interlayer separation distribution in different rock thickness in different rock thickness Mechanical Properties of Construction Surface Construction Surface Cohesion.
Influence of mechanical characteristic of bedding surface on stratified composite rock mass.
Through ANSYS program simulation by construction element and D-P yield criterion, influencing factors on construction normal stress and interlayer separation were analyzed, the results could be applied by engineering practice.
Layer Elastic Modulus /MPa Poissn Ratio Cohesive Force /MPa Internal Friction Angle/º Ⅱ 4E09 0.3 2.0 28 Ⅲ 4E09 0.3 5.0 30 Table 1 Rock mechanical parameters Figure 1 Simulation model The Influencing Factors on Construction Separation in Deep Mining Original Rock Stress.
Figure8 Normal stress distribution Figure9 Interlayer separation distribution in different rock thickness in different rock thickness Mechanical Properties of Construction Surface Construction Surface Cohesion.
Influence of mechanical characteristic of bedding surface on stratified composite rock mass.
Online since: September 2017
Authors: A.D. Abramov, A.S. Ilinykh, Je.S. Sidorov, M.S. Galay
Investigation of Thermal Conditions of the Aluminothermic Welding
and their Influence on the Structure and Properties of Metal Rails
A.D.
The article is devoted to the assessment of temperature influence effect on the mechanical properties and structure of weld metal and welded rails.
Investigations aimed at improving mechanical properties of welded joints due to the doping of a thermite powder are given in [2,3].
This work is devoted to the assessment of temperature influence effect on the mechanical properties and structure of weld metal and welded rails.
In the study of the thermal conditions influence of the welding process on the structure and mechanical properties of the weld metal and heat affected zones, microstructural studies and measurement of the rail head hardness of the welded joint were carried out.
The article is devoted to the assessment of temperature influence effect on the mechanical properties and structure of weld metal and welded rails.
Investigations aimed at improving mechanical properties of welded joints due to the doping of a thermite powder are given in [2,3].
This work is devoted to the assessment of temperature influence effect on the mechanical properties and structure of weld metal and welded rails.
In the study of the thermal conditions influence of the welding process on the structure and mechanical properties of the weld metal and heat affected zones, microstructural studies and measurement of the rail head hardness of the welded joint were carried out.
Online since: March 2015
Authors: Ben Sheng Huang, Xiang Chen, Long Peng Huang
H2S corrosion has become one of the key factors that has impact seriously on the exploration and development of high-sulfur oil and gas.
Test Results and Discussion H2S effects on the mechanical properties.
It is testified by the fact that yield strength, tensile strength and other mechanical properties decrease by varying degrees.
Corrosion Factors of N80 Steel in Simulated H2S/CO2 Environment[J].
Factors Affecting the Corrosion Behavior of Tubular Steel N80 in CO2 and H2S Containing Produced Water of Gas Well [J].
Test Results and Discussion H2S effects on the mechanical properties.
It is testified by the fact that yield strength, tensile strength and other mechanical properties decrease by varying degrees.
Corrosion Factors of N80 Steel in Simulated H2S/CO2 Environment[J].
Factors Affecting the Corrosion Behavior of Tubular Steel N80 in CO2 and H2S Containing Produced Water of Gas Well [J].