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Online since: January 2012
Authors: Henry Hu, Xue Zhi Zhang, Kazi Ahmmed, Meng Wang
The content of magnesium-based intermetallic phases, their morphology and distribution throughout the matrix affect the mechanical properties of the aged alloy as well.
The presence of gas porosity adversely affect mechanical properties of the cast components.
It was shown that solution temperature has a strong affect on tensile properties of solution treated A380.
But, all the strength-enhancing factors negatively affect the elongation, of which the samples treated at 200˚C was comparatively lower than that of the as-cast ones.
The content of magnesium based intermetallic phase, their morphology and distribution throughout the matrix affected the mechanical properties as well.
The presence of gas porosity adversely affect mechanical properties of the cast components.
It was shown that solution temperature has a strong affect on tensile properties of solution treated A380.
But, all the strength-enhancing factors negatively affect the elongation, of which the samples treated at 200˚C was comparatively lower than that of the as-cast ones.
The content of magnesium based intermetallic phase, their morphology and distribution throughout the matrix affected the mechanical properties as well.
Online since: December 2022
Authors: Li Hua Zhao, Ji Song Zhang, Li Kun Wang
The working properties, mechanical properties and freezing resistance of CA mortar are tested.
Level of orthogonal test factors [kg/m3] Factor Cement (A) Emulsified asphalt (B) Sand (C) Level 1 280 440 580 2 310 470 610 3 340 500 640 Table 2.
In practical engineering, mixing speed and mixing time have different degrees of influence on the working and mechanical properties of CA mortar.
The mechanical properties of CA mortar mainly include the compressive strength of 1d, 7d and 28d, and the elastic modulus of 28d.
Study on influencing factors of frost resistance of CA mortar.
Level of orthogonal test factors [kg/m3] Factor Cement (A) Emulsified asphalt (B) Sand (C) Level 1 280 440 580 2 310 470 610 3 340 500 640 Table 2.
In practical engineering, mixing speed and mixing time have different degrees of influence on the working and mechanical properties of CA mortar.
The mechanical properties of CA mortar mainly include the compressive strength of 1d, 7d and 28d, and the elastic modulus of 28d.
Study on influencing factors of frost resistance of CA mortar.
Online since: January 2017
Authors: Yuan Yu, Tao Sun
Waterproof mechanism and influence factors of its application discussed.
Physical and mechanical properties of polymer-modified cement waterproofing coating [3].
Table 1 Physical and mechanical properties of polymer-modified cement waterproofing coating No.
Physical and mechanical properties of CCCW [6].
Table 2 Physical and mechanical properties of CCCW No.
Physical and mechanical properties of polymer-modified cement waterproofing coating [3].
Table 1 Physical and mechanical properties of polymer-modified cement waterproofing coating No.
Physical and mechanical properties of CCCW [6].
Table 2 Physical and mechanical properties of CCCW No.
Online since: April 2014
Authors: Xin Lai He, Yun Zhou, Xue Min Wang
Microstructure and Mechanical Properties of Microalloyed Multiphase Steel
Yun Zhoua, Xuemin Wangb and Xinlai Hec
University of Science and Technology Beijing, China
azhouyun20090526@163.com, bwxm@mater.ustb.edu.cn, chexl@mater.ustb.edu.cn
Keywords: Microalloyed multiphase steel, Roll simulating, Hot-rolled multiphase steel, TMCP(Thermo-Mechanical Controlled Processing), Microstructure, Mechanical properties.
The objective of present work is to study the influence of cooling rate and quenching temperature on the mechanical properties of ferrite-bainite steel and to establish the correlation between them.
Considering the above factors, the overall number of high angle grain boundary appears increasing after the first.
Mechanical properties.
The mechanical properties of rolling steel are shown in Table.1.
The objective of present work is to study the influence of cooling rate and quenching temperature on the mechanical properties of ferrite-bainite steel and to establish the correlation between them.
Considering the above factors, the overall number of high angle grain boundary appears increasing after the first.
Mechanical properties.
The mechanical properties of rolling steel are shown in Table.1.
Online since: October 2007
Authors: Lian Meng Zhang, Qiang Shen, Yao Ming Wang, You Xian Xue
Factors that affected the properties of the support material were analyzed.
It is often required that the support should have high properties, such as high porosity, proper pore-size distribution, high mechanical intensity and so on.
In this study, the high-quality support was fabricated and the factors that affect greatly properties of the support were studied.
The binder additions have a great effect on the micro-pore and mechanical properties of the support material.
(5) The firing temperature is an important factor that affects the properties of the support material.
It is often required that the support should have high properties, such as high porosity, proper pore-size distribution, high mechanical intensity and so on.
In this study, the high-quality support was fabricated and the factors that affect greatly properties of the support were studied.
The binder additions have a great effect on the micro-pore and mechanical properties of the support material.
(5) The firing temperature is an important factor that affects the properties of the support material.
Study on Effect of Particle Size of Matrix and Reinforcement on Properties of Iron Matrix Composites
Online since: June 2012
Authors: Kang Ju Li, Yu Fang Yang
It is found that mechanical properties of composites increase with the increasing particle size of iron.
Specific reasons in the following two aspects: on the one hand, the ratio of powder particle size of the matrix is an important factor of effecting reinforcement distribution uniformity and the final material properties.
The reasons are that enhanced particle size and the degree of distribution is an important factor affecting the performance of the composites when composite volume ratio is same.
Summary (1) It is found that mechanical properties of composites increase with increasing particle size of iron power.
The reason is believed that big particle size of the iron powder contributes better effect on dispersion of reinforcing particles in the composite to result in better mechanical properties
Specific reasons in the following two aspects: on the one hand, the ratio of powder particle size of the matrix is an important factor of effecting reinforcement distribution uniformity and the final material properties.
The reasons are that enhanced particle size and the degree of distribution is an important factor affecting the performance of the composites when composite volume ratio is same.
Summary (1) It is found that mechanical properties of composites increase with increasing particle size of iron power.
The reason is believed that big particle size of the iron powder contributes better effect on dispersion of reinforcing particles in the composite to result in better mechanical properties
Online since: April 2016
Authors: Jarmila Geffertova, Anton Geffert, Blažej Seman
By decrease of the observed properties of the stored wood, a deterioration a quality of produced pulp can be expected (a higher Kappa number, amount reject and decrease the mechanical properties of pulp).
Oak belongs to ring-porous wood species whose mechanical properties increase if an annual growth is higher [3].
Lower annual growth can influence moderate decrease of mechanical properties.
Based upon the decrease of mechanical properties with the time of wood storage, it is also possible to expect decrease of mechanical properties of pulps prepared from the stored wood.
After some time, wood is affected by wood decaying fungi, which gradually degrade wood, and thus properties of wood change.
Oak belongs to ring-porous wood species whose mechanical properties increase if an annual growth is higher [3].
Lower annual growth can influence moderate decrease of mechanical properties.
Based upon the decrease of mechanical properties with the time of wood storage, it is also possible to expect decrease of mechanical properties of pulps prepared from the stored wood.
After some time, wood is affected by wood decaying fungi, which gradually degrade wood, and thus properties of wood change.
Online since: February 2018
Authors: Hai Lin Yang, Jian Ming Ruan, Lin Chang, Jue Liu, Shouxun Ji
In conclusion, The Ta-70Zr alloy is potentially useful in the hard tissue implants for its mechanical properties and biocompatibility.
Ta is widely used in biological materials [13-16] for its excellent mechanical properties, good corrosion resistance and impact resistance.
The Ta-Zr alloys with mechanical properties matched with the dense bone were prepared by powder metallurgy.
Mechanical properties is an important factor of bone repair materials, the ideal bone replacement materials can not only induce osteoblast growth, but also bear a certain load [20].
Jin: Shape memory effect and mechanical properties of biomedical Ti-Ta based alloys(Ph.D., Xiamen University, China 2009), p.84.
Ta is widely used in biological materials [13-16] for its excellent mechanical properties, good corrosion resistance and impact resistance.
The Ta-Zr alloys with mechanical properties matched with the dense bone were prepared by powder metallurgy.
Mechanical properties is an important factor of bone repair materials, the ideal bone replacement materials can not only induce osteoblast growth, but also bear a certain load [20].
Jin: Shape memory effect and mechanical properties of biomedical Ti-Ta based alloys(Ph.D., Xiamen University, China 2009), p.84.
A Study of Mechanical Properties of Bone Cement Containing Micro- and Nano- Hydroxyapatite Particles
Online since: April 2018
Authors: Chaiy Rungsiyakull, Phanrawee Sriprapha, Kamonpan Pengpat, Sukum Eitssayeam, Tawee Tunkasiri
This work aims to study the effect of particle size to the mechanical properties of PMMA bone cement and also physical properties.
Consequently, the PMMA could be improved the mechanical properties by HAp particles additive.
The distribution of micro- (A) and nano-HAp (B) particles in the PMMA matrix Summary The particles size strongly affected the PMMA properties.
This work showed low the PMMA properties due to the normal casting uncontrollable of the factors such as rate of casting and the time setting of the specimen, which caused the air bubble containing in the PMMA matrix.
Hence, the mechanical properties of PMMA bone cement could be improved by adding the HAp particle additive that affected by the porosity reduction and force distribution in PMMA matrix.
Consequently, the PMMA could be improved the mechanical properties by HAp particles additive.
The distribution of micro- (A) and nano-HAp (B) particles in the PMMA matrix Summary The particles size strongly affected the PMMA properties.
This work showed low the PMMA properties due to the normal casting uncontrollable of the factors such as rate of casting and the time setting of the specimen, which caused the air bubble containing in the PMMA matrix.
Hence, the mechanical properties of PMMA bone cement could be improved by adding the HAp particle additive that affected by the porosity reduction and force distribution in PMMA matrix.
Online since: August 2012
Authors: Xiang Dong Qi, Jian Wang, Hong Zhu, Li Gang Zhang
Wall-thickness and wall-face connective curvature radius are found to be the two independent factors affecting relative density.
Introduction With high specific strength, low thermal conductivity ect, cellular materials become popular to fabricate structural component and heat insulation for aviation and astronautics fields, hence their mechanical properties have been widely investigated[1-3].
The tetrakaidecahedron is an ideal model to simulate mechanical properties of cellular materials, based on this model, linear elastic properties of open-cell foams were studied and better results were obtained[4-6]; elastic properties of closed-cell cellular materials were studied and gained forecasting formula of elastic modulus[7]; influence of wall-thickness variation on elastic properties of closed-cell cellular materials was studied[8]; by finite elements method, elastic properties of cellular materials were analyzed[9].
Conclusions The solid which surface tension draws to cell-edge has influence on relative density increment, wall-face connective curvature radius is the primary factor, wall-thickness is the secondary factor, wall-thickness and wall-face connective curvature radius can be simplified as two independent factors of relative density.
Ashby: Cellular Solids: Structure and Properties (Pergamon Press, Oxford 1997)
Introduction With high specific strength, low thermal conductivity ect, cellular materials become popular to fabricate structural component and heat insulation for aviation and astronautics fields, hence their mechanical properties have been widely investigated[1-3].
The tetrakaidecahedron is an ideal model to simulate mechanical properties of cellular materials, based on this model, linear elastic properties of open-cell foams were studied and better results were obtained[4-6]; elastic properties of closed-cell cellular materials were studied and gained forecasting formula of elastic modulus[7]; influence of wall-thickness variation on elastic properties of closed-cell cellular materials was studied[8]; by finite elements method, elastic properties of cellular materials were analyzed[9].
Conclusions The solid which surface tension draws to cell-edge has influence on relative density increment, wall-face connective curvature radius is the primary factor, wall-thickness is the secondary factor, wall-thickness and wall-face connective curvature radius can be simplified as two independent factors of relative density.
Ashby: Cellular Solids: Structure and Properties (Pergamon Press, Oxford 1997)