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Online since: May 2011
Authors: Jing Ping Chen, Ke Han
This article describes the nanostructured composites with face-centered cubic (fcc) copper or body-centered cubic (bcc) ferrite as matrix and discusses several factors that affect the mechanical strength of such materials.
Factors Affecting Mechanical Properties Microstructure This section deals with the materials with lamellar structure.
In such systems, other microstructure parameters play a role in influence of the mechanical properties in addition to the lamellar spacing.
It is therefore interesting to understand the mechanical properties in other orientations.
And finally, it is commercially important to draw the wire at the highest production speed possible without adversely affecting its properties.
Factors Affecting Mechanical Properties Microstructure This section deals with the materials with lamellar structure.
In such systems, other microstructure parameters play a role in influence of the mechanical properties in addition to the lamellar spacing.
It is therefore interesting to understand the mechanical properties in other orientations.
And finally, it is commercially important to draw the wire at the highest production speed possible without adversely affecting its properties.
Online since: June 2014
Authors: Guo Qin Sun, Fang Li Cao, Jiang Pei Niu
These defects could affect the properties of the welded joint.
This phenomenon can lead to hole defects in the weld and affect properties of the welded joint [11].
Jiao, Microstructures and mechanical properties of 6082 aluminum alloy joints welded by FSW, J.
Dong, Microstructure and mechanical properties of friction stir welded joints in 2219-T6 aluminum alloy, J.
Zhang, Influence factors of dynamic recrystallization of 7050 aluminum alloy friction stir weld, J.
This phenomenon can lead to hole defects in the weld and affect properties of the welded joint [11].
Jiao, Microstructures and mechanical properties of 6082 aluminum alloy joints welded by FSW, J.
Dong, Microstructure and mechanical properties of friction stir welded joints in 2219-T6 aluminum alloy, J.
Zhang, Influence factors of dynamic recrystallization of 7050 aluminum alloy friction stir weld, J.
Online since: January 2012
Authors: Derya Dispinar, S. Akhtar, A. Nordmark, F. Syvertsen, M. Di Sabatino, L. Arnberg
Correlation Between Mechanical Properties and Porosity Distribution of A356 in Gravity Die Casting and Low Pressure Die Casting
D.
Presence of defects in any production part caused by bad gating and wrong feeder placement can make the properties unpredictable and significantly affect the mechanical properties of aluminium castings, especially the ductility and fatigue properties.
The low porosity levels in low pressure die casting (Fig 3) have not resulted in high mechanical properties.
Regardless of the casting method (no matter how perfect the method or the filling could be) and the gas content, it is the bifilm content of the melt that affects the mechanical properties.
The cleanliness of the melt has a major affect over the properties of the cast part.
Presence of defects in any production part caused by bad gating and wrong feeder placement can make the properties unpredictable and significantly affect the mechanical properties of aluminium castings, especially the ductility and fatigue properties.
The low porosity levels in low pressure die casting (Fig 3) have not resulted in high mechanical properties.
Regardless of the casting method (no matter how perfect the method or the filling could be) and the gas content, it is the bifilm content of the melt that affects the mechanical properties.
The cleanliness of the melt has a major affect over the properties of the cast part.
Online since: January 2010
Authors: Roberto Montanari, Ilaria Cappelloni, Andrea Moriani, Paolo Deodati
Dentine has different morphology near the enamel and in the inner part thus mechanical properties
progressively change in correspondence of structure variation.
Furthermore, dentine exhibits time-dependent properties like creep and stress relaxation [7-11].
In this work different experimental techniques have been employed to measure the mechanical properties of dentine.
The imprint size allows an accurate mapping of mechanical properties but, at the same time, is large enough to avoid large scattering of data.
Therefore, FIMEC proved to be a reliable methodology to measure the mechanical properties of dentine on a local scale.
Furthermore, dentine exhibits time-dependent properties like creep and stress relaxation [7-11].
In this work different experimental techniques have been employed to measure the mechanical properties of dentine.
The imprint size allows an accurate mapping of mechanical properties but, at the same time, is large enough to avoid large scattering of data.
Therefore, FIMEC proved to be a reliable methodology to measure the mechanical properties of dentine on a local scale.
Online since: May 2011
Authors: Jian Bin Hao, Yu Ming Men
Gradually, anchor is in the working state of tension, but its stress becomes rather complicated when influenced by some external factors such as water, ground loads, etc.
Among all the influencing factors, ground additional loads and water are much more common.
Physical & mechanical properties of the model clay are given in Table 1.
The upper row anchor is greatly affected by the bending moment, especially near the slide face where the bending moment is maximal
References [1] Phillips S.H.E: Factors affecting the design of anchorages in rock (Cementation Research Ltd., London 1970)
Among all the influencing factors, ground additional loads and water are much more common.
Physical & mechanical properties of the model clay are given in Table 1.
The upper row anchor is greatly affected by the bending moment, especially near the slide face where the bending moment is maximal
References [1] Phillips S.H.E: Factors affecting the design of anchorages in rock (Cementation Research Ltd., London 1970)
Online since: February 2012
Authors: Guillaume Miquelard-Garnier, Denis Jouannet, Anh Son Nguyen, Alain Guinault, Anne Grandmontagne, Cyrille Sollogoub
Other bio-based materials like polyhydroxyalkanoates (in our case PHBV) could be associated with PLA in order to improve its gas barrier properties and/or its mechanical properties.
We can observe that adding 10% of PHBV in PLA by blending lead to an increase of the elongation at break without affecting much the stresses compared to pure PLA films.
The differences between the permeability of the coextruded films and the polymer blend films could be explained by 2 factors: an overlapping effect of the lamellaes and a crystallinity degree effect of the PHBV layers or lamellaes on the PLA.
This morphology offers both better mechanical and barrier properties than pure PLA.
Hernandez.R, Mechanical, physical and barrier properties of poly(lactide) films, J.
We can observe that adding 10% of PHBV in PLA by blending lead to an increase of the elongation at break without affecting much the stresses compared to pure PLA films.
The differences between the permeability of the coextruded films and the polymer blend films could be explained by 2 factors: an overlapping effect of the lamellaes and a crystallinity degree effect of the PHBV layers or lamellaes on the PLA.
This morphology offers both better mechanical and barrier properties than pure PLA.
Hernandez.R, Mechanical, physical and barrier properties of poly(lactide) films, J.
Online since: March 2023
Authors: Chong Beng Wei, Ramadhansyah Putra Jaya, Youventharan Duraisamy, Lean Yen Han, Rokiah Binti Othman, Mohd Arif Sulaiman
As such, significant studies have been conducted to simulate the mechanical properties of BFRP bars under degradation when subject to different hostile substances.
The other factors selected were the temperate and immersion time.
The compactness and mechanical properties of corrosion products decrease with the concentration increase of NaHSO3 in the solutions [17].
The compactness and mechanical properties of rebar decrease with the concentration increases.
Alzeebaree, and A. çevik, “Effects of sulphuric acid on mechanical and durability properties of ECC confined by FRP fabrics,” Adv.
The other factors selected were the temperate and immersion time.
The compactness and mechanical properties of corrosion products decrease with the concentration increase of NaHSO3 in the solutions [17].
The compactness and mechanical properties of rebar decrease with the concentration increases.
Alzeebaree, and A. çevik, “Effects of sulphuric acid on mechanical and durability properties of ECC confined by FRP fabrics,” Adv.
Online since: June 2010
Authors: Peter Hodgson, Debashish Bhattacharjee, Rimma Lapovok, Arunansu Haldar, László S. Tóth, Ilana B. Timokhina, Dmitry Orlov
Structure and Mechanical Properties of Asymmetrically Rolled IF Steel Sheet
Dmitry Orlov
1,a, Rimma Lapovok1,b, Laszlo S.
Microstructure, texture and mechanical properties were analysed.
Mechanical properties were determined in tensile tests on flat samples scaled down by factor of 2.5 from standard ASTM E8M-08.
Therefore, reversal asymmetric rolling improves the mechanical properties.
Summarising the reported results, it can be seen that asymmetric rolling with one roll idle does affect the microstructure, texture and mechanical properties evolution in IF steel during deformation.
Microstructure, texture and mechanical properties were analysed.
Mechanical properties were determined in tensile tests on flat samples scaled down by factor of 2.5 from standard ASTM E8M-08.
Therefore, reversal asymmetric rolling improves the mechanical properties.
Summarising the reported results, it can be seen that asymmetric rolling with one roll idle does affect the microstructure, texture and mechanical properties evolution in IF steel during deformation.
Online since: December 2014
Authors: Qing Hao Yang, Wan Chang Sun, Pei Zhang, Pan Li, Xiao Lin She
Effects of Ni/Co Metal Binder Phase on Mechanical Properties of Ti(C,N)-based Cermets
Pei Zhang, Wan-chang Sun*, Qing-hao Yang, Pan Li, Xiao-lin She
College of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
*Corresponding author: sunwanchang@tsinghua.org.cn
Key words: Ti(C,N)-based cermets, Metal binder phase, Mechanical properties, Fracture micrograph
Abstract.
The effects of metal binder phase content on porosity and mechanical properties of Ti(C,N)-based cermets were investigated.
Tool materials are not only core components of cutting technology, but also main factors which directly affect the cutting quality and efficiency.
Fig. 1 Pressureless sintering process of Ti(C,N)-based cermets Mechanical Testing.
Table 2 Mechanical properties of Ti(C,N)-based cermets with different metal binder phase content Samples Vickers hardness[ GPa] Bending strength [ MPa] Fracture toughness [MPa·m1/2] Ti(C,N)-A 12.8 270.1 8.2 Ti(C,N)-B 15.8 885.8 9.7 Ti(C,N)-C 14.2 419.7 8.0 Fig.4 shows the fracture micrographs of Ti(C,N)-based cermets with different metal binder phase content.
The effects of metal binder phase content on porosity and mechanical properties of Ti(C,N)-based cermets were investigated.
Tool materials are not only core components of cutting technology, but also main factors which directly affect the cutting quality and efficiency.
Fig. 1 Pressureless sintering process of Ti(C,N)-based cermets Mechanical Testing.
Table 2 Mechanical properties of Ti(C,N)-based cermets with different metal binder phase content Samples Vickers hardness[ GPa] Bending strength [ MPa] Fracture toughness [MPa·m1/2] Ti(C,N)-A 12.8 270.1 8.2 Ti(C,N)-B 15.8 885.8 9.7 Ti(C,N)-C 14.2 419.7 8.0 Fig.4 shows the fracture micrographs of Ti(C,N)-based cermets with different metal binder phase content.
Online since: June 2013
Authors: Yun Feng Li, Zhi Feng Xu, Ling Ling Wang
Considering the above-mentioned factors, the optimal mixture ratio and substituted amount of composite mineral admixtures replacing equally cement are obtained.
Chemical composition and properties of materials.
Mechanical Properties of Concrete Effect of SS and FA on Mechanical Properties of Concrete.
Effect of SS and BFS on Mechanical Properties of Concrete.
Effect of FA and BFS on Mechanical Properties of Concrete.
Chemical composition and properties of materials.
Mechanical Properties of Concrete Effect of SS and FA on Mechanical Properties of Concrete.
Effect of SS and BFS on Mechanical Properties of Concrete.
Effect of FA and BFS on Mechanical Properties of Concrete.