Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: July 2006
Authors: Carl Perrin, P.A.S. Reed, Andrew J. Moffat, S. Syngellakis, M.S. Ali
Microstructural factors affecting fatigue initiation in various Al based bearing alloys M.S.
For the assessment of mechanical properties (to be used in subsequent FE modelling), standard dog bone specimens obtained from individual layers of the roll bonded systems (provided as monolithic lining, inter- and steel layers) were tensile tested at a displacement rate of 5mm/minute using an Instron Electromechanical Tensile Testing Machine according to British Standards [5].
Mechanical properties of secondary particles Nanohardness tests performed on the lining layers of all current and previous systems showed that all secondary particles: Sn, Si and intermetallics had significantly different values of elastic modulus E and nanohardness (Hn) than the Al matrix.
Although the results are not perfectly reliable due to large experimental scatter; they give a clear indication of variation in mechanical properties.
Conclusions Small alterations in composition lead to significantly different secondary particle distributions that directly affect mechanical properties.
Online since: November 2010
Authors: Yu Yan Li, Xie Qing Huang
It possess such properties as high damping, the ability to absorb the impact energy, resistance to high or low temperature, slow ageing, and so on.
In the field of engineering, we wish to achieve appropriate metallic rubber structure effectively and quickly, but there is great distance between theoretical description and practical engineering, and the distance is a key technique problem affecting metallic rubber structure used widely.
The properties of metallic rubber directly affect those of metallic rubber isolator.
Therefore if density and shape factor of metallic rubber were given, but heat treatment technlogy was different, each coefficient of nonlinear constitutive relationship of the material were obtained, and thus the material could meet the mechanical properties demands, which lays a theoretical foundation for designing and manufacturing the material.
If density and shape factor of metallic rubber were given, and heat treatment technology was different, different coefficients of nonlinear constitutive relationship of the material were obtained, and thus the material could meet mechanical properties demands, which lays a theoretical foundation for designing and manufacturing metallic rubber.
Online since: August 2011
Authors: Zhuo Ran Li, Bing Liu, Xiang Long Zhang, Ji Cai Feng
Vacuum diffusion bonding characteristics of GH4169, interface bonding holes and mechanical properties of the joints were investigated.
Vacuum diffusion welding is known to play an important role in aerospace, military and automotive industries because of its excellent mechanical property[6-7].
Many factors affect the quality of diffusion bondings, including temperature, time, pressure, surface preparation and using of interlayers.
The relationship between microstructures of interfaces and mechanical properties of bonding joints are discussed.
In order to achieve the joint with intimacy of contact and excellent mechanical property under low welding parameters, diffusion bonding of the GH4169 with Cu interlayer was investigated.
Online since: March 2009
Authors: D. Angeles Herrera, J.L. González Velázquez
In a previous work [10], the stress intensity factor in mode I (KI) of a non standard SEN curved specimen was calibrated by the compliance method.
The tables 1 and 2 show the chemical composition and the mechanical properties of the API steel pipe.
Mechanical properties at the different study zones Zone 2.0 [MPa] UTS [MPa] Area reduction [%] Deformation [%] Hardness [HRB] BM 271 411 62 35.5 89.8 DM 345 551 - - 92.8 HAZ 277 362 - - 84.4 The final dimensions of the non standard curved SEN specimens were: width 25.4 mm, thickness 25.4 mm. and length 127 mm.
"Fatigue life prediction of out-of-plane guesst welded joinst using strain energy density factor approach".
"Determinación del Factor de intensidad de esfuerzos en probetas en flexión en tres puntos con caras curvas".
Online since: February 2022
Authors: Nabeel Kadhem Abd Alsaheb, Mahmood Hameed Majeed
Three factors must be considered when considering printability via extrusion bioprinting: viscosity, material phase, and biofabrication window.
Mechanical properties data obtain from Testometer Universal Testing Machine for samples (4, 5, 6).
Traditionally, soybean resin was only printed using a stereolithography (SLA) three-dimensional printer, and this printing method involves the use of heating and laser, which can degrade and affect the mechanical properties of the materials.
Additionally, when the properties of two cubic injected samples with 0.5 ml of soybean oil resin are compared, slight differences can be seen due to a variety of factors, one of which is that we used a syringe pump to inject the resin, which is subject to some variation above and below +/- 0.5 ml injected volume.
However, when mechanical parameters are compared before and after injection, we observe an improvement in mechanical properties.
Online since: September 2013
Authors: Siti Khadijah Alias, Abdul Hakim Abdullah, Syarifah Yunus, Syazuan Abdul Latip
The key factor in determining the mechanical properties of these natural fibre composites are regarding to the fibre-matrix adhesion [1].
Therefore, the selection criteria for both epoxy resins were selected basically on their mechanical properties as given in general specification.
The general specification and mechanical properties given by the manufacture is shown in Table 1.
Table 1: General specification and mechanical properties of Epoxy A and Epoxy B.
A study of fibre and interface parameters affecting the fatigue behavior of natural fibre composites.
Online since: August 2015
Authors: Nanang Sudrajat, Agus Sukarto Wismogroho, Didik Aryanto, Zailani Ray, Toto Sudiro
Rodewald, et al. [6] and Nakamura, et al. [7] also show the magnetic properties and some mechanical properties of sinter magnet depending on the characteristic of the powder (size, shape, flowability, etc.).
Magnetic powder, binder and fabrication process are important factors that affect the bulk density of magnet.
The different particle size of screened powder does not significantly affect the magnetic properties of bonded NdFeB magnet.
Uestuener, Coercivity and mechanical properties of Nd-Fe-B magnets in dependence on the average grain size, 18th Int.
Song, Effect of process on the magnetic and mechanical properties of Nd–Fe–B bonded magnets.
Online since: March 2010
Authors: Hai Zhou, Li Gang Bai, Dai Pin Wang
The main factors that influence macro-quality are the method of slicing, grinding and polishing.
If the quality of substrate is a little poor, it would make the LED with a bad light-emitting properties and even lead to failure of LED production [6].
This article analysis the factors which affect micro-quality of substrates from the process of machining, the factors are the method of wafer slicing, grinding, the composition of slurry, the process of polishing and so on.
The mechanical action provided by abrasives of one of the main factors affecting the speed of polishing.
Conclusion The factors which affect micro-quality are the method of annealing of crystal, the method of slice of wafer, the method of grinding of substrate, the method of polishing of substrate.
Online since: July 2015
Authors: Heng Hua Zhang, Rui Wang, Ling Qi Meng
The affecting factors of aluminum alloy resistivity are temperature, stress, plastic deformation, alloy elements, the phase structure and heat treatment.
Table 1 shows the national standard(GB)mechanical properties of A356 aluminum alloy and mechanical properties of LPSSDC wheels in T6 heat treatment and casting (F).As can be seen from table 1, tensile properties and hardness of LPSSDC wheel in casting (F) are much higher than the national standard A356 aluminum alloy.
Mechanical properties have a large number of improvements after T6 heat treatment.
TABLE 1 NATIONAL STANDARD(GB)MECHANICAL PROPERTIES OF A356 ALUMINUM ALLOY AND MECHANICAL PROPERTIES OF LPSSDC WHEELS IN T6 HEAT TREATMENT (T6) AND CASTING (F).
Mechanical properties and simulation to the forging process of 6061 aluminum alloy wheel hub[J].
Online since: January 2006
Authors: Boleslaw Formanek, Boris B. Khina
This is especially noticeable in Mechanical Alloying (MA) which is used for producing a wide range of metastable materials (supersaturated solid solutions, amorphous phases, nanostructures) with unique properties.
The model includes basic physical factors that affect diffusion, such as generation of non-equilibrium point defects by gliding screw dislocations during deformation and their relaxation in periods between impacts.
At present, MA is used as a versatile means for producing far-from-equilibrium powder materials with unique properties, such as supersaturated solid solutions, quasicrystalline and amorphous phases and nanostructures (see reviews [2-4] and literature cited therein).
Optimization of MA processes and development of advanced materials with superior properties necessitates the creation of mathematical models of MA.
For example, Shtremel' [8,9] completely rejects the role of diffusion in MA basing on the classical diffusion theory which, however, does not account for the process-specific physical factors.
Showing 2331 to 2340 of 26166 items