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Online since: July 2005
Authors: Marek Faryna, Zbigniew Pędzich
The paper deals with the results of mechanical properties and microstructure investigations performed in two composite systems: Al2O3/WC and Al2O3/W.
Fabrication of two-phase particulate composites could be the simplest way to mechanical properties improvement.
Samples for mechanical properties measurements were sintered at 1650°C and the pressure was 25 MPa.
Comparison of mechanical properties of the Al2O3 matrix, Al2O3/WC and Al2O3/W composites.
However, apart from crystallographic factors, the properties of material under investigation may be affected by interfacial defects and interphase boundary structure.
Online since: November 2012
Authors: Xiao Peng Miao, Wei Zhang, Hai Bo Wang
The working mechanism of hydraulic excavators is the main load-bearing component, it’s structure strength directly affects the reliability and performance of the excavator.
Details which didn’t affect the structure strength, such as small round holes and little chamfers, etc., were simplified in the process of modeling.
Mechanical Properties of Material The materials of the working mechanism of the hydraulic excavator were mainly Q345B,its mechanical properties of material is shown in Table 1.
When calculating the strength of the working mechanism, safety factor S is generally selected as 1.5-2.
Table 1 Q345B material properties performance material density [kg/mm^3] elastic modulus [MPa] Poisson ratio yield strength [MPa] intensity limit [MPa] Q345B 7.85e-6 2.06e5 0.3 345 510-600 Working Load and Boundary Conditions Under four typical working conditions, external force situation of the working mechanism can be obtained by calculating.
Online since: June 2023
Authors: Faisal Mahmuddin, Josh Fortuna Arruan, Muhammad Uswah Pawara, Andi Mursid Nugraha Arifuddin, Alamsyah Alamsyah
Therefore, it needs an alternative material which has equivalent mechanical properties.
The feasibility of alternative materials will be reviewed in terms of strength and safety factors.
Results and Discussion The Mechanical Properties Mask Sail of Sandeq.
The mechanical properties of the material are shown in Table 3.
The Mechanical Properties Mask Sail of Sandeq.
Online since: May 2025
Authors: W. O. Zubair, M. O. H. Amuda, Kasali A. Adedeji, Nurudeen A. Raji, Taiwo F. Lawal
Additionally, other properties such as creep-fatigue, high temperature rupture resistance, ductility and fracture toughness are affected leading to embrittlement in the alloy [10, 12].
However, hBN as a solid lubricant has high refractory properties and excellent mechanical and physical properties similar to the carbides.
Ju et al. [138] also indicated that MoS2 is not stable in humid air and exhibit poor mechanical and oxidation resistance properties. hBN on the other hand is credited with high refractory properties and excellent mechanical and physical properties similar to carbides [139].
Singh, Mechanical properties of austenitic stainless steel 304L and 316L at elevated temperatures, J.
Masanta, Microstructure and mechanical properties of TiC-Ni coating onAISI304 steel produced by TIG cladding process, J.
Online since: January 2017
Authors: Thawatchai Kaewkamrop, Chatchai Nimmol
The physical properties of dried okara were analyzed in terms of color and rehydration ability.
In terms of physical properties, it was observed that the dried okara was darker, redder and more yellow than the fresh okara.
Drying temperature seemed to be a significant factor affecting the changes of redness; okara dried at higher temperatures was redder than that dried at lower temperatures.
In terms of physical properties, it was found that the dried okara was darker, redder and more yellow than the fresh okara.
The drying temperature was the dominant factor affecting the color changes of the okara.
Online since: April 2004
Authors: Y. Iino
INTRODUCTION Ni-base superalloy CMSX-10 is a third generation single crystal material for advanced gas turbine blades with excellent high temperature mechanical properties.
So high-temperature exposure should be considered in study of the mechanical properties.
The effect of prior exposure in high temperature air environment on the room temperature mechanical properties has been reported[1].
The results show that the fatigue crack growth behaviour is not affected by the air-exposure at 1100͠ till 1000 h. 3.2.
Fig.2 Relation between fatigue crack growth rate da/dN and stress intensity factor range �K.
Online since: March 2014
Authors: Carlos Antonio Reis Pereira Baptista, Ana Márcia Barbosa da Silva Antunes, Marcelo A.S. Torres, Viktor Pastoukhov, Sandro V.P. Espezua
The chemical composition and mechanical properties are given in Tables 1 and 2, respectively.
Alloy Si Fe Cu Mn Mg Cr Zn Ti AA 6005 0.50 - 0.9 0.35 0.30 0.50 0.40 - 0.7 0.30 0.20 0.10 AA 6063 0.2 - 0.6 0.35 0.10 0.10 0.45 - 0.9 0.10 0.10 0.10 AA 6351 0.7 - 1.3 0.5 0.10 0.40 - 0.8 0.40 - 0.8 - 0.20 0.20 Table 2 – Mechanical properties of the T6-heat treated Al-Mg-Si alloys.
This combination of factors suggests a faster fatigue crack propagation for the negative stress ratio.
This result is possibly related to the plastic properties of the alloys.
Aluminum Alloys: Their Physical and Mechanical Properties. v. 1.
Online since: February 2019
Authors: Petr Valášek, Karolína Habrová
Introduction Composite materials are materials that combine the physical and mechanical properties of their phases. [1-2] Environmental aspects also enter the field of material engineering.
The results of the experiment aimed to determine whether the presence of CSP in the epoxide significantly affected the rate of drop in mechanical characteristics.
A number of factors can influence cohesion, among which is the filler concentration, the filler size and its distribution in the matrix, etc.
Komuraiah, B.D.Kumar, Prasad: Chemical composition of natural fibres and its influence on their mechanical properties: Mech Compos Mater Vol. 50(2014), pp. 359-376
Zhao, D., He: Effect of functional core-shell microspheres on flame retardance and mechanical properties of epoxy.
Online since: April 2020
Authors: Mohammed Kasim Mohsun
Introduction Ti-6Al-4V has been used in many industrial fields such as the aerospace industry, medical applications, power station, and chemical plants due to its properties such as low density, high strength, excellent corrosion resistance, and workability [1,2,3].
Accordingly, an urgent industrial need has been emerged for the development of its mechanical properties by applying THT, which creates an optimal microstructure using hydrogen as a temporary alloying element within the heat treatment [4,5,6].
The behavior of hydrogen diffusion depends on many primary and secondary factors.
The primary factors include the type of grain boundaries of a crystal lattice, vacancy concentration, internal stresses, and microstructure type, while the secondary factors include the alloying elements quantity, impurities quantity, and the presence of metastable phases in the alloy [15,16,17].
The difference in the hydrogen concentrations evidence that the structure form has an influence on hydrogen uptake in addition to other influential factors such as the temperature and pressure.
Online since: March 2012
Authors: Miguel A. López-Manchado, Marianella Hernandez Santana, Tiberio A. Ezquerra
Results reveal that segmental dynamics of NR is affected by uniaxial stretching since a slowing down of the segmental relaxation is achieved.
Thus, a study on how the strain-induced crystallization affects the dynamics of a rubbery material is of outmost importance.
The molecular chains, which are initially entangled, are rearranged along the draw axes, and hence, the polymer shows anisotropic physical properties.
This study has allowed us to know the effects of the strain-induced crystallization on the molecular dynamics of NR, and to understand the improved mechanical properties of the system.
Sweeney: An Introduction to the Mechanical Properties of Solid Polymers (John Wiley & Sons, West Sussex 2004)
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