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Online since: December 2021
Authors: Izabel Fernanda Machado, Givanildo Alves dos Santos, Mauricio S. Nascimento, Marcos de Aguiar Guimarães, Rogerio Teram, Vinicius Torres dos Santos, Marcio Rodrigues da Silva, Antonio Augusto Couto
The aluminium bronze alloys with aluminium content above 9 wt% and addition of nickel and iron allow high mechanical resistance by heat treatment, causing them to be preferred in the manufacture of components where good combination of mechanical, wear and corrosion resistance is required.
This phenomenon affects the tool rake face by changing the cutting geometry and consequently the workpiece surface finishing [8].
Li et al. [8] studied the adhesion of material on the carbide insert and high speed ​​steel (HSS) in the bronze-aluminum machining, and they found that the distribution of higher adhesion points depends on factors such as temperature and pressure.
This behavior affected the surface roughness result; · The low abrasion wear affected only the coating of inserts.
Effect of edge preparation technologies on cutting edge properties and tool performance.
Online since: March 2013
Authors: Wei Shui Fei, Dong Ya Wang
The study proves that the accumulation of dowel looseness is the main factor which causes this special relation.
Caulking material performance aspects, in view of caulking material durability properties have been studied, and developed better durability, excellent performance of caulking materials, put forward under heavy traffic contraction joints shall be set dowel bar and other important suggested measures.
Joint seal failure factors [10] including: (1) the environmental factors (rain, sunshine, high temperature, hard and dirty content).
Joint sealant performance directly affects the normal use of the cement concrete pavement and its quality, then ensure joint sealant for excellent working performance to improve the use of cement concrete pavement performance and extend the life of pavement structure is very important, so in-depth understanding, analysis the mechanical properties of the concrete pavement joint caulking temperature contraction and traffic loads are necessary.
In the cement concrete pavement using period, joint sealant are mainly affected by both the tensile and shear.
Online since: February 2007
Authors: Vladimir D. Krstić
Porosity Dependence of Young's Modulus It is well known that the presence of pores strongly affects the elastic properties of brittle solids.
It has been shown experimentally [19] and theoretically [20] that the stress concentration due to the presence of pores and crack-pore interaction effects are the dominant factors controlling the elastic response of a porous solid.
Equation (7) and Fig. 4 also show that, for a given annular flaw size, a solid containing large a number of small pores will have the Young's modulus less affected by the presence of pores than a solid containing a small number of large pores.
Cubic ceramics are known to have isotropic elastic and thermal proper- ties, whereas non-cubic ceramics posses anisotropy in both elastic (E, ν) and thermal properties (α).
Soc. of Mechanical Engineer (1933), pp.5539
Online since: August 2014
Authors: Guo Lin Wang, Jian Yang, Hai Chao Zhou
The deformation of tire tread under load affects the drainage space.
Alternatively, variables and properties of a given cell are purely representative of one phase or a mixture phase, depending on the volume fraction values.
Fig.8 Factors and its effect tendency A plane which is distance ground 4mm is selected as characteristic-plane.
Fig. 10 Sub-hydroplaning model Table.3 The program and results of orthogonal experiment Test Number Test Factors and level Hydrodynamic Pressure /Pa Width(W)/ mm Angle (D)/mm N 1 6 10 3 158883 2 6 20 4 130094 3 6 30 5 104742 4 8 10 4 128091 5 8 20 5 106572 6 8 30 3 136487 7 10 10 5 102319 8 10 20 3 143168 9 10 30 4 105312 Using the data from Table.3 for regression analysis, we get the multivariate linear regression equations between hydrodynamic pressure and the test factors shown in (3)  (3) The regression coefficient for the model is R=0.988, and the standardized coefficient for each test factors were -0.306, -0.304, -0.889 respectively.
Chinese Journal of Mechanical Engineering, 2013, 26(3): 506-511
Online since: February 2014
Authors: Bi Jun Luo, Dan Wu, Yu Qi Wang, Shao Yan Lu, Xi Ping Huang, Qi Zhang
Magnesium carbonate tri-hydrate with hexagonal prism morphology is widely used in enhancements and modification of coating, rubber, plastic, ink and other field due to crystal development completely, less defect, high strength and high purity, good mechanical properties [3].
Orthogonal experiment results showed that the primary and secondary order of various factors influence on aspect ratio as follows: temperature > stirring speed > n (Mg2+): n (HCO3-) >n (HCO3-): n (NH3·H2O) > aging time.
The experiment have no blank columns contrast except the factors listed in orthogonal table, so the error analysis can only choose relative error, take variance with minimum mean square factors corresponding as error.
While the other three factors could choice their level base on other influencing conditions.
Inorganic Chemicals Industry Vol.1 (1993), p. 26-28 [4] Freitag F, Kleinebudde P: How roll compaction and dry granulation affect the tableting behavior of inorganic materials: comparison of four magnesium carbonates.
Online since: January 2017
Authors: Roberto Montanari, Alessandra Varone, Giuliano Angella, Riccardo Donnini, Giuseppe Barbieri
The low misfit of lattice parameter between g’- and g - phases (typically < 0.4%) and the reduced interface energy (20- 30 mJ/m2) are the factors that induce the excellent stability of the (g + g’) microstructure and is the result of a strict control of the chemical composition and the production parameters.
Therefore damage may occur and accumulate during service, leading to progressive degradation of the mechanical properties.
The excellent high temperature structural stability and properties of Ni base superalloys are mainly due to their complex composition.
Sammy in “Nickel-Based Superalloys for Advanced Turbine Engines: Chemistry, Microstructure, and Properties”, University of Michigan, Ann Arbor, Michigan 48109, University of Cambridge, Cambridge, England CB2 3QZ, United Kingdom, 2006
Goiria, Development of laser welding of Ni based superalloys for aeronautic engine applications (experimental process and obtained properties), Phys.
Online since: March 2025
Authors: Muhammad Nidzhom Zainol Abidin, Ahmad Faruq Johari, Siti Fatahiyah Mohamad, Sumarni Mansur, Sharifah Mohamad
Polymeric membranes, while possessing excellent separation properties, are mostly lacking in this area.
The interplay between MMA concentration and radiation dose has not only affected the degree of grafting but also the membrane properties.
Despite having chemically resistant properties, PI membrane performance in specific organic solvent environments can be affected by chemical interactions.
By adjusting factors like radiation dose, exposure time, and monomer concentration, it is possible to precisely tailor the degree of grafting and the properties of the grafted layer.
The objective of this study is to investigate the effects of radiation dose and monomer concentration on the degree of grafting and physicochemical properties of PI-graft (g)-PMMA membranes.
Online since: March 2019
Authors: Jian Qun Tang, Jian Ming Gong, Lu Yang Geng
Some measurements were carried out to explore the factors that caused the occurrence of the bursting.
Actually, the presence of this inclusion-containing S will affect the properties of the Inconel 600, especially the fatigue resistance, which will probably reduce the service life of the rupture disc.
Many researches have approved that the presence of inclusions in alloy will affect the fatigue resistance of the alloys [9,10,11].
This is the key factor causing the bursting of the rupture disc.
Kim, et al, Evaluation of the low cycle fatigue failure properties for GTAW weldments of Alloy 617 at 950 °C, Eng.
Online since: May 2006
Authors: J. Cabrita Freitas, Campos Rodrigues, Catarina Silva, João M.P. Coelho, Manuel A. Abreu
The channels that can be seen in the centre of the plate are usually obtained by mechanical methods, which submit the graphite plate to stress.
The advantage of this method when compared to others is the fact that there is no contact with the surface, thus not affecting it and, even so, allowing measurement precisions up to 25µm.
The properties of the plate are presented on the table 1 [8,9].
A parameter to account for is the reflection factor of this kind of material.
Depth measurements were less affected by this phenomenon, only showing an uncertainty of less than 10%.
Online since: February 2004
Authors: Chao Yuan Wang, Zhong Ning Guo, Zhi Gang Huang
(i) Mechanical method.
(iii) Mechanical and chemical method.
In this way, the properties of different coating materials are compared to decide which one is desirable.
The thermophysical properties of the material are shown is Table 1.
Because of these factors, its machining mechanism is much different from that of WEDM-LS.
Showing 17381 to 17390 of 25958 items