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Online since: December 2004
Authors: Feng Xie, N. Liu, H.D. Yang, C.G. Zhang
The mechanical properties of two kinds of materials are also
measured.
In 1971, Professor Kiefeere of Vienna Industrial University in Austrian firstly reported that the mechanical properties of TiC-based cermet would be affected by adding TiN compound and pointed out that Ti(C,N)-based cermet would have a great outlook as a cutter [2].
Therefore, this is key to have a correct understanding of its mechanical properties for its reasonable application.
Its mechanical properties for the two kinds of materials are also measured.
The mechanical property's measurements of developed cutter show that nano-modified cermet has better mechanical properties than non-modified cermet.
In 1971, Professor Kiefeere of Vienna Industrial University in Austrian firstly reported that the mechanical properties of TiC-based cermet would be affected by adding TiN compound and pointed out that Ti(C,N)-based cermet would have a great outlook as a cutter [2].
Therefore, this is key to have a correct understanding of its mechanical properties for its reasonable application.
Its mechanical properties for the two kinds of materials are also measured.
The mechanical property's measurements of developed cutter show that nano-modified cermet has better mechanical properties than non-modified cermet.
Online since: February 2011
Authors: Lorella Ceschini, Fabio Rotundo, Alessandro Morri
The aim of this work was to evaluate the effect on microstructure and mechanical properties (hardness and tensile strength) of two different friction welding techniques used for joining two Al-based metal matrix composites.
One of the main limitation to the widespread use of this class of material is related with their joining, as traditional fusion welding techniques, such as TIG, MIG or laser, generally lead to microstructural defects, thus badly affecting their mechanical properties.
The aim of the present study is to discuss the effect of the FSW and LFW processes on two Al-based particle reinforced MMCs, in terms of microstructural modification and mechanical properties.
Microstructural and mechanical characterisation.
The FSW W6A20A composite showed a joint efficiency (JE), defined as the ratio between the joint and the nominal base material properties, of about 70% with respect to the tensile strength (UTSFSW/UTSBM) and about 60% with respect to the proof strength.
One of the main limitation to the widespread use of this class of material is related with their joining, as traditional fusion welding techniques, such as TIG, MIG or laser, generally lead to microstructural defects, thus badly affecting their mechanical properties.
The aim of the present study is to discuss the effect of the FSW and LFW processes on two Al-based particle reinforced MMCs, in terms of microstructural modification and mechanical properties.
Microstructural and mechanical characterisation.
The FSW W6A20A composite showed a joint efficiency (JE), defined as the ratio between the joint and the nominal base material properties, of about 70% with respect to the tensile strength (UTSFSW/UTSBM) and about 60% with respect to the proof strength.
Online since: October 2014
Authors: Yan Yin, Jin Guo Ta, Rui Hua Zhang, Zhan Chong Wang
In this article, the weld bead morphology, arc images, microstructures and mechanical properties of laser aided activating TIG welding joint were analyzed.
LA-TIG weld exhibits better mechanical properties than the conventional TIG welding.
The arc constriction and the reversed Maranon convection are considered to be two main factors for increasing the penetration of an A-TIG welding pool [9].
(a) (b) (c) (d) Fig. 4 Optical microstructure of the weld joint Mechanical Properties of the Weld Joint Table 4 presents the tension test results for mechanical properties of the weld joint formed by TIG welding and LA-TIG welding respectively.
(3) LA-TIG weld exhibits better mechanical properties (including strength, ductility, and hardness) than that formed by the conventional TIG welding
LA-TIG weld exhibits better mechanical properties than the conventional TIG welding.
The arc constriction and the reversed Maranon convection are considered to be two main factors for increasing the penetration of an A-TIG welding pool [9].
(a) (b) (c) (d) Fig. 4 Optical microstructure of the weld joint Mechanical Properties of the Weld Joint Table 4 presents the tension test results for mechanical properties of the weld joint formed by TIG welding and LA-TIG welding respectively.
(3) LA-TIG weld exhibits better mechanical properties (including strength, ductility, and hardness) than that formed by the conventional TIG welding
Online since: February 2013
Authors: Xiao Lei Wu, Ji Jia Xie, Si Cong Zhao, Yan Peng Feng
Then how can the gradient structures affect the fatigue behaviors?
Generally, the fatigue crack initiation affected by many factors in polycrystalline materials.
So the influencing factors of fatigue crack initiation may be the dislocations accumulation and its interactions with grain boundaries.
Then how the gradient structures affect the fatigue behaviors?
Ashby, The cyclic properties of engineering materials.
Generally, the fatigue crack initiation affected by many factors in polycrystalline materials.
So the influencing factors of fatigue crack initiation may be the dislocations accumulation and its interactions with grain boundaries.
Then how the gradient structures affect the fatigue behaviors?
Ashby, The cyclic properties of engineering materials.
Online since: January 2012
Authors: Brajendra Mishra, David L. Olson, Peerapong Kiattisaksri, Jonathan Poncelow
The induced microstructure variations in Grade T22 Cr-Mo steel, including the correlations of changes in physical (microstructure) and mechanical (hardness data) properties during annealing have been measured.
Steel properties are both a function of composition and thermal and mechanical processing.
Therefore, the properties of metals are involved with the electron gas properties.
The properties of the metal depends on two essential factors as valence and conduction bands, by the spacing between the valence and conduction bands and the relative location of Fermi energy level [3].
Grade T22 steel received simulated high temperature heat treatment time by using Larson Miller expression results in the best combination of mechanical properties and microstructure evolution.
Steel properties are both a function of composition and thermal and mechanical processing.
Therefore, the properties of metals are involved with the electron gas properties.
The properties of the metal depends on two essential factors as valence and conduction bands, by the spacing between the valence and conduction bands and the relative location of Fermi energy level [3].
Grade T22 steel received simulated high temperature heat treatment time by using Larson Miller expression results in the best combination of mechanical properties and microstructure evolution.
Online since: March 2004
Authors: Hyun Jae Yoo, Ik Min Park, Yong Ho Park
In addition, the electrical transport properties, i.e.,
electrical resistivity and Seebeck coefficient, of the sintered samples were studied.
Mechanical alloying (MA) is usually utilized to produce the alloyed powders for sintering.
It is seen that addition of Ag remarkably affects the magnitude of power factor and its variation with temperature.
As the Ag content R0.05 mass%, the power factor decreases with temperature.
At x=0.1 mass%, the power factor is almost unchanged with temperature.
Mechanical alloying (MA) is usually utilized to produce the alloyed powders for sintering.
It is seen that addition of Ag remarkably affects the magnitude of power factor and its variation with temperature.
As the Ag content R0.05 mass%, the power factor decreases with temperature.
At x=0.1 mass%, the power factor is almost unchanged with temperature.
Online since: January 2025
Authors: Waseem Akram, Majid Ali
These cracks can occur due to a variety of factors, but one of the governing properties involved is tensile strength.
Structure Characteristics and Mechanical Properties of Fiber Reinforced Concrete.
Mechanical properties of high-strength fiber reinforced concrete.
Mechanical properties of high-strength steel fiber-reinforced concrete.
Mechanical properties of natural fibre polymer composites.
Structure Characteristics and Mechanical Properties of Fiber Reinforced Concrete.
Mechanical properties of high-strength fiber reinforced concrete.
Mechanical properties of high-strength steel fiber-reinforced concrete.
Mechanical properties of natural fibre polymer composites.
Online since: August 2021
Authors: Violetta Bratoshevskaya
The relationship between the elastic-plastic properties of concrete and its ability to resist the external loads and internal stresses effects arising under the influence of aggressive environmental factors has been studied.
The cement stone and concrete structure is a complex heterogeneous system consisting of solid, liquid and gaseous phases, in the boundary layers of which under external conditions change, the indicated stresses arise, affecting the material durability [5].
Change in concrete composition and consequently, the relationship between the structural components is carried out by various technological factors: the binder type and consumption, the amount and properties of the aggregate, concrete curing conditions, etc. [4].
One of the factors that determine the capillary pressure and tension which occurs at negative temperatures, is the degree of filling the capillaries with water.
Sychev, Chemistry of hardening and formation of strength properties of cement stone, Cement. 9 (1978) 4-6
The cement stone and concrete structure is a complex heterogeneous system consisting of solid, liquid and gaseous phases, in the boundary layers of which under external conditions change, the indicated stresses arise, affecting the material durability [5].
Change in concrete composition and consequently, the relationship between the structural components is carried out by various technological factors: the binder type and consumption, the amount and properties of the aggregate, concrete curing conditions, etc. [4].
One of the factors that determine the capillary pressure and tension which occurs at negative temperatures, is the degree of filling the capillaries with water.
Sychev, Chemistry of hardening and formation of strength properties of cement stone, Cement. 9 (1978) 4-6
Online since: October 2012
Authors: Quan Xiao Liu, Wen Cai Xu, Yan Na Yin
Introduction
Surface sizing is mainly to increase paper mechanical strength, smoothness, glossiness, printability and other properties in paper industry [1-3].
The factors, which affect the printing gloss paper, are mainly surface smoothness, gloss, etc.
The factors, which affect the printing gloss paper, are mainly surface smoothness, gloss, etc.
However, with thicker coatings, paper folding and tear substantially reduced, and the coating viscosity increase, affecting the printing operation.
The mechanical properties of sized papers were compared, the results shown in Table 6.
The factors, which affect the printing gloss paper, are mainly surface smoothness, gloss, etc.
The factors, which affect the printing gloss paper, are mainly surface smoothness, gloss, etc.
However, with thicker coatings, paper folding and tear substantially reduced, and the coating viscosity increase, affecting the printing operation.
The mechanical properties of sized papers were compared, the results shown in Table 6.
Online since: May 2012
Authors: Xi Wang, S. R. Zheng, R. M. Wang
Epoxy resin possesses excellent adhesion, wear resistance, mechanical properties, electrical insulation, chemical stability, resistance to high and low temperature, as well low shrinkage.
Temperature / ˚C heating rate / (K · min -1) Fig.2 Fitting beelines between temperatures-heating speeds Changes in mechanical properties of EP were examined by changing the m (nano-SiO2): m (toughening) ratio.
Fig.3 FT-IR curves of cured EP adhesives In the traditional model of crazing, two key factors affecting the results, the generation of crazes and the timely suspension of crazing, prevent macro-cracking.
The mechanisms responsible for adhesion were highly complex because they depended upon the simultaneous action of different factors.
In the present study, one of the most important factors for adhesion improvement was new polar functional group.
Temperature / ˚C heating rate / (K · min -1) Fig.2 Fitting beelines between temperatures-heating speeds Changes in mechanical properties of EP were examined by changing the m (nano-SiO2): m (toughening) ratio.
Fig.3 FT-IR curves of cured EP adhesives In the traditional model of crazing, two key factors affecting the results, the generation of crazes and the timely suspension of crazing, prevent macro-cracking.
The mechanisms responsible for adhesion were highly complex because they depended upon the simultaneous action of different factors.
In the present study, one of the most important factors for adhesion improvement was new polar functional group.