Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: March 2019
Authors: He Xue, Kuan Zhao, Kai Li, Rui Han Song, Shuai Wang, Ting Wang
However, the reliability of using "indentation method" to test the local mechanical parameters’ results is affected by many factors such as the amount of accumulation/depression around the indentation, the geometry deviation of the indenter, the displacement of the initial contact point and creep, et al.[5].
The accumulation/depression around the indentation is one of the major influencing factors, and it is mainly affected by σ0.2/Er and n, which has been studied by many scholars [6].
Zhou [7] through the analysis of several key factors of nanoindentation testing the mechanical properties of thin films, concluded that the plastic depression would occur around the indentation of all the materials with n>0 when σ0.2 /Er is the larger, but the accumulation/depression phenomenon depends on the working hardening exponent when σ0.2/Er is the smaller.
Vickers Hardness Test and Analysis of Main Influencing Factors[J].
Analysis of Some Key Influencing Factors on Mechanical Properties of Membranes by Nanoindentation[J].
The accumulation/depression around the indentation is one of the major influencing factors, and it is mainly affected by σ0.2/Er and n, which has been studied by many scholars [6].
Zhou [7] through the analysis of several key factors of nanoindentation testing the mechanical properties of thin films, concluded that the plastic depression would occur around the indentation of all the materials with n>0 when σ0.2 /Er is the larger, but the accumulation/depression phenomenon depends on the working hardening exponent when σ0.2/Er is the smaller.
Vickers Hardness Test and Analysis of Main Influencing Factors[J].
Analysis of Some Key Influencing Factors on Mechanical Properties of Membranes by Nanoindentation[J].
Online since: September 2017
Authors: S.S. Gerasimov, Irina A. Gruzdeva, Vladislav R. Baraz
The article is devoted to the study of Cu-Ni-Zn ternary alloy properties.
These alloys have high physical-mechanical and corrosion-inhibiting properties.
The mechanical properties study is carried out by INSTRON universal testing system 5900.
Two standard mechanical characteristics which is characteristic on the one hand the strength properties and on the other hand the plasticity are recorded.
At the same time considered factors make for to a decrease in ductility, however, its level is at an acceptable (δ not less than 20%).
These alloys have high physical-mechanical and corrosion-inhibiting properties.
The mechanical properties study is carried out by INSTRON universal testing system 5900.
Two standard mechanical characteristics which is characteristic on the one hand the strength properties and on the other hand the plasticity are recorded.
At the same time considered factors make for to a decrease in ductility, however, its level is at an acceptable (δ not less than 20%).
Online since: May 2010
Authors: Ingvar L. Svensson, Martin Selin, Daniel Holmgren
Some important material properties
that are affected by the graphite shape are tensile strength and thermal conductivity.
Introduction Graphite morphology influences a lot of mechanical properties in cast iron.
The reason for this variation in properties is due to the growth direction of the graphite crystal, Figure 1, [1-4].
Compacted graphite iron (CGI) has vermicular shaped graphite resulting in mechanical properties intermediate those of ductile and grey cast iron [5, 6].
Lampic, The mechanical and physical properties of compacted graphite iron.
Introduction Graphite morphology influences a lot of mechanical properties in cast iron.
The reason for this variation in properties is due to the growth direction of the graphite crystal, Figure 1, [1-4].
Compacted graphite iron (CGI) has vermicular shaped graphite resulting in mechanical properties intermediate those of ductile and grey cast iron [5, 6].
Lampic, The mechanical and physical properties of compacted graphite iron.
Online since: April 2012
Authors: Zhao Hui Deng, Piao Long, Lin Lin Wan, Sheng Chao Li
Introduction
In aerospace, hi-tech manufacturing and other industries fields, the demand of curved surface workpieces made by high temperature ceramic materials is growing because of their unique physical properties and significant improvements in their mechanical properties and reliability [1].
It’s affected by the polishing wheel speed and polishing wheel feed rate.
The factors along with their level are given in Table 1.
The selection of orthogonal array (OA) is concerned with the total degree of freedom (DOF) of the factors.
According to the results of anova, it indicates that the process parameters affecting the MRR of rotary curved surface of Si3N4 in CMP in the order of polishing wheel speed, polishing wheel feed rate, and slurry concentration.
It’s affected by the polishing wheel speed and polishing wheel feed rate.
The factors along with their level are given in Table 1.
The selection of orthogonal array (OA) is concerned with the total degree of freedom (DOF) of the factors.
According to the results of anova, it indicates that the process parameters affecting the MRR of rotary curved surface of Si3N4 in CMP in the order of polishing wheel speed, polishing wheel feed rate, and slurry concentration.
Online since: November 2016
Authors: Zheng Yi Jiang, H.B. Tibar
Analysis of Thin Strip Shape and Profile in Cold Rolling: A Way to Improve Strip Profile and Mechanical Properties
H.B.
Optimisation of the physical and mechanical properties of cold rolled thin strips is achieved by controlling the rolling parameters.
In this paper, the factors affecting the low carbon steel thin strip profile of asymmetrical cold rolling have been studied at a speed ratio of 1.3 without lubricant applied.
This is attributed to the fact that the differential speed will only impact the microstructure and the mechanical properties of the strip and does not contribute to the final shape or profile of the rolled workpiece.
Ko, Microstructure evolution and mechanical properties of severely deformed Al alloy processed by differential speed rolling, Journal of Alloys and Compounds, 536 (2012) S122-S125
Optimisation of the physical and mechanical properties of cold rolled thin strips is achieved by controlling the rolling parameters.
In this paper, the factors affecting the low carbon steel thin strip profile of asymmetrical cold rolling have been studied at a speed ratio of 1.3 without lubricant applied.
This is attributed to the fact that the differential speed will only impact the microstructure and the mechanical properties of the strip and does not contribute to the final shape or profile of the rolled workpiece.
Ko, Microstructure evolution and mechanical properties of severely deformed Al alloy processed by differential speed rolling, Journal of Alloys and Compounds, 536 (2012) S122-S125
Online since: November 2013
Authors: Ramin Khamedi, Amir Ghiami
For instance Dobrazanski et al [6] managed to predict the mechanical properties of quenched and tempered steels using a neural network.
This temperature significantly affects the final microstructure of the samples.
Honysz, Application of artificial neural networks in modelling of quenched and tempered structural steels mechanical properties, J.
Mousavi Anijdan, A, Ekrami, Prediction of mechanical properties of DP steels using neural network model, J.
Labuda, Using neural network models for predicting mechanical properties after hot plate rolling processes, J.
This temperature significantly affects the final microstructure of the samples.
Honysz, Application of artificial neural networks in modelling of quenched and tempered structural steels mechanical properties, J.
Mousavi Anijdan, A, Ekrami, Prediction of mechanical properties of DP steels using neural network model, J.
Labuda, Using neural network models for predicting mechanical properties after hot plate rolling processes, J.
Online since: December 2006
Authors: Soon Bok Lee, Dong Cheon Baek
Inverse Method to Determine Mechanical Properties of Thin Film by
Nanoindentation and Finite Element Analysis
Dong-Cheon Baek1, a, Soon-Bok Lee1,b
1
Department of Mechanical Engineering
Korea Advanced Institute of Science and Technology
373-1, Guseong-dong, Yuseong-gu, Daejeon, 305-701, Korea (ROK)
a
dcbaek@kaist.ac.kr, bsblee@kaist.ac.kr
Keywords: thin film, nanoindentation, finite element method, mechanical properties
Abstract.
When the simulated loaddisplacement curve matches the experimental curve, the final set of properties is taken to be that of the unknown material.
Convergence of material properties with iteration At first two trial sets ( 2,1=j ), material properties was assumed and ijP are deduced from finite element simulation from two trial sets.
A good fit to the properties of sample is obtained with applying to Eq. 6 and Eq.7.
The inverse method is proposed to deduce mechanical properties, both E and ν, from experimental load-displacement curve and finite element simulation.
When the simulated loaddisplacement curve matches the experimental curve, the final set of properties is taken to be that of the unknown material.
Convergence of material properties with iteration At first two trial sets ( 2,1=j ), material properties was assumed and ijP are deduced from finite element simulation from two trial sets.
A good fit to the properties of sample is obtained with applying to Eq. 6 and Eq.7.
The inverse method is proposed to deduce mechanical properties, both E and ν, from experimental load-displacement curve and finite element simulation.
Online since: April 2022
Authors: Mufutau Akindoye Waheed, Oluseyi O. Ajayi, Mercy Ogbonnaya, Enesi Y. Salawu
From the review, the thermophysical properties of the nanorefrigerants affect the pressure drop and heat transfer characteristics of the vapour compression refrigeration system.
The method used in the preparation of the nanofluid influences the thermophysical properties of the nanorefrigerant, thereby affecting the overall performance of the VCRS.
Thermophysical properties on nanorefrigerants The heat transfer processes in the VCRS is affected by the finite values of the thermophysical and hydraulic properties of the heat transfer fluid.
The rate at which heat is removed from the system, overall efficiency, and pressure drop in the systems are affected by these properties.
Thermophysical Properties of Al2O3-Water Nanofluids, Materials Science Forum Trans.
The method used in the preparation of the nanofluid influences the thermophysical properties of the nanorefrigerant, thereby affecting the overall performance of the VCRS.
Thermophysical properties on nanorefrigerants The heat transfer processes in the VCRS is affected by the finite values of the thermophysical and hydraulic properties of the heat transfer fluid.
The rate at which heat is removed from the system, overall efficiency, and pressure drop in the systems are affected by these properties.
Thermophysical Properties of Al2O3-Water Nanofluids, Materials Science Forum Trans.
Online since: March 2006
Authors: Dong Joo Lee
Comparison of Mechanical Properties of Compression and Injection
Molded PEEK/Carbon Fiber Reinforced Composites
D.
The effects of fiber length on mechanical properties are evident in cases of specimens made by compression molding.
Thus, the change in fiber length would mainly affect the fiber efficiency factors.
It also shows the importance of fiber length to obtain good mechanical properties.
To improve the mechanical properties of SFRP, the maintaining the initial short-fiber length is quite important.
The effects of fiber length on mechanical properties are evident in cases of specimens made by compression molding.
Thus, the change in fiber length would mainly affect the fiber efficiency factors.
It also shows the importance of fiber length to obtain good mechanical properties.
To improve the mechanical properties of SFRP, the maintaining the initial short-fiber length is quite important.
Online since: October 2022
Authors: Khairul Anuar Shariff, Zuryati Ab. Ghani, Tang Liszen, Anis Syamimi Johari
Zirconia is considered to have great mechanical properties due to the physical property known as transformation toughening [3].
The phase transformation of zirconia can influence its strength and mechanical properties.
The sintering condition of zirconia is one of the major factors in getting stable and durable zirconia dental ceramic [4].
Sintering temperature can affect the properties of ceramics through alteration of the particle structure and crystalline phases [5].
Sintering temperature determines the properties of ceramics by affecting the microstructure and the crystalline phases.
The phase transformation of zirconia can influence its strength and mechanical properties.
The sintering condition of zirconia is one of the major factors in getting stable and durable zirconia dental ceramic [4].
Sintering temperature can affect the properties of ceramics through alteration of the particle structure and crystalline phases [5].
Sintering temperature determines the properties of ceramics by affecting the microstructure and the crystalline phases.