Search:

  • Factors affecting the mechanical properties of

Search Options

Sort by:

Publication Type:

Open access:

Publication Date:

Periodicals:

Search results

Online since: June 2022
Authors: Philippa Ruth Christine Böhnke, Iris Kruppke, Andreas Nocke, Chokri Cherif, Florian Wieczorek, Hans Winger, Jens Wagner, Eric Häntzsche
Use properties of electrically conductive yarns such as washability [4 – 6] have already been investigated and are not the focus of the investigations here.
The silver coating (which generates the electrical conductivity) of yarn Y1 is inevitably more susceptible to abrasion [13], compared to a yarn that gets its electrical properties from the fiber material alone.
Another significant influencing factor is the use of the binding elements.
However, this is necessary to develop sensors with improved usage properties.
Koncar: Launderability of Conductive Polymer Yarns Used for Connections of E-textile Modules: Mechanical Stresses.
Online since: August 2023
Authors: Svitlana Shvydka, Atabala M. Babayev, Anton Chernukha, Olena Tarakhno, Olga Skorodumova
Study of the influence of the composition on the rheological properties of impregnating compositions.
Study of the influence of the content of orthophosphoric acid on changes in the fire-retardant properties of impregnated cotton fabric samples.
Investigation of the effect of ammonium dihydrogen phosphate (ADHP) content on the fire-retardant properties of impregnated cotton fabric samples.
Emen, Formation of fire retardant properties in elastic silica coatings for textile materials, Materials Science Forum, 1006 (2020) 25–31
Shcherbak, Results of experimental research into correlations between hazardous factors of ignition of materials in premises, Eastern-European Journal of Enterprise Technologies, 6(10) (2017) 50–56.
Online since: May 2022
Authors: Gabriela-Victoria Mnerie, Iuliana Duma, Radu Nicolae Popescu
The chemical composition of the two materials and the mechanical characteristics are presented in Table 1.
Table 1 - Chemical composition and mechanical properties of materials [8] Chemical composition of materials C Mn Si P S Cr Mo Al 16Mo5 (W 1.5423) 0,12 – 0,20 0,50 – 0,80 0,15 – 0,30 Max. 0,0035 Max. 0,0035 - 0,45 – 0,65 0,010 – 0,030 X6CrAl13 (W 1.4002) Max. 0,080 Max. 1,0 Max. 1,0 Max. 0,040 Max. 0,015 12 – 14 - 0,10 – 0,30 Mechanical properties of materials Tensile strength [N/mm2] Drip limit, Rp0,2 [N/mm2] Elongation at tearing [%] Tearing energy at 20 oC [J] 16Mo5 (W 1.5423) 440 – 540 Min. 265 18 31 X6CrAl13 (W 1.4002) 400 – 600 Min. 210 Min. 17 Not specified For the estimation of the remaining life of the device under study, taking into account the particularities of the materials and constructional structure used in manufacturing, the provisions of the standards specific to the study materials were observed: SR EN 10028-2: 2009 Flat steel products for pressure vessels.
The following modules were used for research: - iRiS – Material: database with physical and mechanical properties of materials, including 16Mo5; - iRiS – Creep: for the creep evaluation of the long-term technical resistance; - iRiS – TRD: for the evaluation of creep depletion and the estimation of the remaining lifetime.
Conclusions The factors that influence the degree of creep strength of a metal equipment are diverse, and the phenomena that affect the good and safe operation are diverse.
Online since: May 2005
Authors: Frank Vollertsen, Claus Thomy
Thus, it does not only depend on the properties of the metallic materials but also on all other factors influencing convection within the melt pool (such as temperature distribution, melt pool geometry and shielding gas composition).
In fact, such questions as potential effects on weld microstructure, homogenization and weld dilution (especially in case of filler wire application) as well as on mechanical properties of the welds have not been thoroughly addressed yet.
The experiments presented in the following were aimed at gaining first information on the influence of flux density and field frequency as well as on the influence of welding speed when keeping all other factors constant.
First, it has to be assessed whether or not etching and illumination are affecting the results for the relative dilution area.
Online since: February 2012
Authors: Lin Jing Xiao, Shu Mei Lou
These parameters affect the product quality and the die life significantly.
The wires are made of two kinds of aluminium alloy whose mechanical properties are almost the same while show different color after etching.
Ni [19]built 2D thermo-mechanical Coupling equation, used ANSYS to calculate the temperature field of the die.
He concluded that the stress concentration is the most important factor for die crack.
Vol.57(2008): p 183-186 [44] Hao Chen, Guoqun Zhao, Cunsheng Zhang and Yanjin Guan: Journal of Mechanical Engineering.
Online since: October 2010
Authors: Fa Yun Zhang, Jian Xiong Ye, Hong Yan
The main preparation methods are electromagnetic stirring, mechanical stirring, strain-induced melt activation and semi-solid isothermal heat treatment method (SSIT for short) etc [3].
Compared with other methods, semi-solid isothermal heat-treatment which is promising enjoys a simple preparation process and lower-cost property, and a two-step thixotropic process instead the traditional three-step thixotropic process.
It is well known that the size of initial grains was one of the important factors in deterring the size of spherical grains although the size of spherical grains obtained were not determined only by it while the alloy was heated for sufficient time during semi-solid temperature zone.In terms of Fig.1, SiC particle has an obvious refining effect, As the volume fraction of SiC particles increased, the finer the initial grains of SiCP/AZ61 composites became.
In a word, for the particle-reinforced composite materials, the size of structures during isothermal heat treatment is mainly affected by refining and hindering of SiC particles.
Online since: January 2012
Authors: Jing Cai, Yi Ming Xu, Hai Bin Lin
Introduction The severe wear or failure of wheel-slide in the flaps and slats of civil aircraft will affect the normal function of flaps and slats directly.
Rolling contact fatigue is also a common problem in aviation industry, with many important components requiring high strength and high abrasion resistance, so those components always have a long life enough to avoid being replaced in huge losses .Traditional metal materials can not meet the requirement, so in many engineering components, the coating has been used to improve the friction property of mechanical materials.
Because the wheel-slide size is very big, and the price is expensive, It is difficult to carry on experiments directly, So simulation test must be used to simulate the normal work of wheel-slide. so it's in addition to environmental factors ,such as loading and movement pattern should be in accordance with its normal work conditions .In accordance with these requirements, the schematic of testing machine was designed as figure 1and the schematic diagram of wheel-slide as Figure 2 In the Figure 2 the vertical load were loaded on the specimen through the wheel, and the position of wheel remains unchanged, at the same time the slide is clamped on a mobile platform and make the straight reciprocating main motion with the mobile platform to simulate working load and movement.
Online since: February 2008
Authors: Giovanni Mazzolai
A study of the p-c-T isotherms have led to the determination of the thermodynamic properties of Pd-Ce-H alloys [1, 6] and to the conclusion [6] that Ce does not trap H.
It was hoped that the comparison might have shed some light on the classical or quantum-mechanical character of H diffusion as well as on the H-Ce interactions.
The pumping system was based on a mechanical and turbo-molecular pump and the chamber sealing was made by copper gaskets.
Concluding this note it is to be emphasised the following facts: a) the diffusion coefficient of H in disordered PdCe is now known over a wide temperature range, b) the H diffusion rate above 100 K obeys a classical-type of Arrhenius law, c) the H-Ce interaction is basically repulsive and, finally, d) the low temperature IF relaxation P2 is not due to Ce-H pair reorientation but rather to reorientation and reaction of H dipoles of variable symmetry properties located far from Ce atoms.
Fukai: The Metal-Hydrogen System, Basic Bulk Properties, Springer-Verlag, Berlin, Heidelberg, N.Y., 1992, p. 231
Online since: October 2008
Authors: H.J. McQueen, Emanuela Cerri, Paola Leo
Constitutive equations for hot working are of great importance in optimizing forming processes to balance reductions in preheating and force, to avoid defects and to improve properties.
Flow curve shapes and. constitutive parameters are affected by variations in composition, in homogenization, in grain morphology and significantly in texture.
Introduction Constitutive equations for hot working are of great consequence in optimizing forming processes to balance reductions in preheating and force, to avoid defects and to improve properties.
Mukherjee A.K. and Dorn J.E., Quantitative Relation Between Properties and Mircrostructure, Israel Univ.
McQueen H.J. and Sakaris P., Aluminum Alloys: Their Physical and Mechanical Properties - Proceedings ICAA3, Arnberg L., Nes E., Lohne O., Ryum N., eds., NTH-Sinteff, Trondheim, Norway, 1992, Vol. 2, pp. 179-184. 48.
Online since: July 2023
Authors: Mudasir Mudasir, Ermin Riskiani, Nurul Hidayat Aprilita
Crystal violet has long-lasting environmental properties and contains toxic, mutagenic, and carcinogenic aniline group compounds [1].
Coal fly ash is considered a source of abundant aluminosilicates and alumina with its unburned carbon, producing an efficient and inexpensive porous adsorbent based on its chemical, mineral, and physical properties [6].
The factors affecting the effectiveness of CV adsorption, such as pH of the solution, adsorbent mass, contact time, and crystal violet concentration, were systematically optimized.
The solution pH has affected the surface charge of the sorbate molecules.
Perakki, Effect of synthesis parameters on mechanical properties of fly ash-based geopolymers.
Showing 24781 to 24790 of 25799 items