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Online since: May 2018
Authors: Walter Lengauer, Fabio Scagnetto
Thus, the 30%WC cermet was found to be the best sample concerning these two mechanical properties.
Chai et al. [97] investigated a series of influencing factors on cermets in their study, including the grain size of the starting raw powders.
A significant difference between these two samples was found in their mechanical properties.
Microstructure and room temperature mechanical properties Int.J.
Technol. 210, 122-128 [96] Klaasen H, Kübarsepp J, Roosaar T, Viljus M, Traksmaa R 2010 Adhesive wear performance of hardmetals and cermets Wear 268, 1122-1128 [97] Chai Y, Liu H, Huang C, Zou B, Liu H 2013 Study of influencing factors of mechanical properties of Ti(C,N)-based cermets Key Engineer.
Chai et al. [97] investigated a series of influencing factors on cermets in their study, including the grain size of the starting raw powders.
A significant difference between these two samples was found in their mechanical properties.
Microstructure and room temperature mechanical properties Int.J.
Technol. 210, 122-128 [96] Klaasen H, Kübarsepp J, Roosaar T, Viljus M, Traksmaa R 2010 Adhesive wear performance of hardmetals and cermets Wear 268, 1122-1128 [97] Chai Y, Liu H, Huang C, Zou B, Liu H 2013 Study of influencing factors of mechanical properties of Ti(C,N)-based cermets Key Engineer.
Online since: March 2007
Authors: Kwang Seon Shin, Geun Tae Bae, Sung S. Park, Jung G. Lee, Dae H. Kang, Nack Kim
Microstructure and Mechanical Properties of Twin-Roll Strip Cast Mg
Alloys
S.
These alloys were subjected to various thermo-mechanical treatments and their tensile properties were evaluated.
Mechanical Properties.
Discussion There are several factors which control the solidification microstructure, e.g., freezing range and degree of superheating (temperature gradient).
Presence of fine intermetallic particles in the microstructure is quite beneficial for mechanical properties.
These alloys were subjected to various thermo-mechanical treatments and their tensile properties were evaluated.
Mechanical Properties.
Discussion There are several factors which control the solidification microstructure, e.g., freezing range and degree of superheating (temperature gradient).
Presence of fine intermetallic particles in the microstructure is quite beneficial for mechanical properties.
Online since: January 2015
Authors: Sylwia Wiewiórowska, Marek Siemiński, Zbigniew Muskalski
Introduction
Significant progress in metallurgical technologies allows to production different grades of steels from typical ferritic steels to multiphase high-strength steels which are new materials having high mechanical properties, while retaining very good plastic properties.
TRIP steels are classified into the group of Advanced High Strength Steels which are distinguished by very high mechanical properties (above 700 MPa, reaching even 2000 MPa) and the percentage elongation being contained in a fairly wide range from 5 do 30%.
A factor determining the advantageous properties of the TRIP steel is the retained austenite contained in its structure, which undergoes transformation into martensite during plastic deformation, this phenomenon being termed the TRIP (Transformation Induced Plasticity) affect [9].
Nickoletopoulos, Influence of heat treatment of TRIP steel wire rod on structure and mechanical properties, Wire Journal (November 2007) 80–84
Sunderkötter, Properties and application of TRIP-steel in sheet metal forming, in: TRIP – Int.
TRIP steels are classified into the group of Advanced High Strength Steels which are distinguished by very high mechanical properties (above 700 MPa, reaching even 2000 MPa) and the percentage elongation being contained in a fairly wide range from 5 do 30%.
A factor determining the advantageous properties of the TRIP steel is the retained austenite contained in its structure, which undergoes transformation into martensite during plastic deformation, this phenomenon being termed the TRIP (Transformation Induced Plasticity) affect [9].
Nickoletopoulos, Influence of heat treatment of TRIP steel wire rod on structure and mechanical properties, Wire Journal (November 2007) 80–84
Sunderkötter, Properties and application of TRIP-steel in sheet metal forming, in: TRIP – Int.
Online since: September 2015
Authors: Nor Hafiez Mohamad Nor, D.K. Aspinwall, J.B. Saedon, S.L. Soo, A. Barnacle
Mohamad Nor1,d
1Faculty of Mechanical Engineering, Universiti Teknologi MARA, Malaysia.
2Machining Research Group, University Of Birmingham, United Kingdom.
3MMC Hardmetal UK, Tamworth, United Kingdom.
This was mainly attributed to the comparatively low levels of mechanical force and temperatures generated during the micro milling operation.
Introduction Workpiece surface integrity can be defined as the description and control of alterations produced in a surface layer during machining, which has a significant influence on the properties and service life of the final components.
The main factors affecting the surface integrity of a machined component are typically related to mechanical loads, thermal gradients and phase transformation present during the cutting process.
Acknowledgments The authors would like to thank the Faculty of Mechanical Engineering (AMTEX), Research Management Institute (RMI-600-RMI/FRGS 5/3 (20/2013)), Universiti Teknologi MARA and Ministry of Education, Malaysia for the research funding under Fundamental Research Grant Scheme (FRGS).
This was mainly attributed to the comparatively low levels of mechanical force and temperatures generated during the micro milling operation.
Introduction Workpiece surface integrity can be defined as the description and control of alterations produced in a surface layer during machining, which has a significant influence on the properties and service life of the final components.
The main factors affecting the surface integrity of a machined component are typically related to mechanical loads, thermal gradients and phase transformation present during the cutting process.
Acknowledgments The authors would like to thank the Faculty of Mechanical Engineering (AMTEX), Research Management Institute (RMI-600-RMI/FRGS 5/3 (20/2013)), Universiti Teknologi MARA and Ministry of Education, Malaysia for the research funding under Fundamental Research Grant Scheme (FRGS).
Online since: August 2012
Authors: Jin Quan Yue, Wei Lu, Yang Zhou, Jun Qing Zhang
Specific factors and levels of orthogonal test were shown in Table2.
This illustrated that bulk would not be main factor affecting paper quality when BECMP utilized as main raw material to make low density printing paper.
In the range of 54ºSR and 65ºSR, the growth rate of tensile index was higher than other properties.
Three factors were ratio, beating degree of softwood pulp and hardwood pulp.
Fig.3 Tensile index curve of adding softwood or hardwood Fig.4 Optimal ratio The obtained data of experiments showed, paper tensile index was mainly affected by the ratio of softwood pulp/hardwood pulp in the three factors.
This illustrated that bulk would not be main factor affecting paper quality when BECMP utilized as main raw material to make low density printing paper.
In the range of 54ºSR and 65ºSR, the growth rate of tensile index was higher than other properties.
Three factors were ratio, beating degree of softwood pulp and hardwood pulp.
Fig.3 Tensile index curve of adding softwood or hardwood Fig.4 Optimal ratio The obtained data of experiments showed, paper tensile index was mainly affected by the ratio of softwood pulp/hardwood pulp in the three factors.
Online since: July 2024
Authors: Boukaré Ouedraogo, Boureima Kabore, Germain Ouedraogo, Kalifa Palm, Dieudonné Joseph Bahiebo
The preservation chamber is constructed using straw-stabilized refractory clay, which underwent a prior study on its mechanical and thermophysical properties, as described in [36].
Indeed, the material used for constructing the walls has thermal properties favorable to insulation [36].
Additionally, the decrement factors are very low, ranging from 0.081 to 0.337.
Kam, Experimental Study of Thermophysical and Mechanical Properties of Refractory Clay Tilled into Straw-fiber Stabilized Blocks, Phys.
Oluwole, Working Properties of Some Selected Refractory Clay Deposits in South Western Nigeria, J.
Indeed, the material used for constructing the walls has thermal properties favorable to insulation [36].
Additionally, the decrement factors are very low, ranging from 0.081 to 0.337.
Kam, Experimental Study of Thermophysical and Mechanical Properties of Refractory Clay Tilled into Straw-fiber Stabilized Blocks, Phys.
Oluwole, Working Properties of Some Selected Refractory Clay Deposits in South Western Nigeria, J.
Online since: January 2022
Authors: Zi Yi Meng, Zao Li Huang, Ying Kai Hua
Results & Discussion
Add and discuss measurement of ionic conductivity and mechanical properties of solid state electrolyte and give at least three examples.
Mechanical Property Test.
But we also need to focus other factor which will affect supercapacitors’ application.
So, the mechanical property is another important factor we need consider about.
The inorganic/organic DN gel shows impressive mechanical property, but, as a electrolyte in SCs, conductivity is another importance factor we need to concern.
Mechanical Property Test.
But we also need to focus other factor which will affect supercapacitors’ application.
So, the mechanical property is another important factor we need consider about.
The inorganic/organic DN gel shows impressive mechanical property, but, as a electrolyte in SCs, conductivity is another importance factor we need to concern.
Online since: January 2014
Authors: Qin Xiang Xia, You Xiang Li, Liang Bo Ji, Bao Hua Cao
Currently, a lot of documents about blanking research on metallic material were put forward, for example, the blanking process on foil sheet with tiny hole was researched by Xu Jie [2], the blanking material and thickness affecting the blanking force curve and maximum blanking force were researched by Hong Guo-hua [3], however, few document about blanking research on non-metallic material was put forward.
There are some differences during separation process of metal and plastic blanking due to the different material properties, and the cross-section qualities after blanking also have their own characteristics.
The mechanical properties are as follows: modulus of elasticity is 1890 MPa, poisson ratio is 0.422, yield strength is 96 MPa, tensile strength is 152 MPa [5, 6].
The unilateral blanking clearance value of the insulation spacer is adopted as 0.02t via considering influence of blanking clearance on the above factors synthetically.
The blanking speed value of the insulation spacer is adopted as 90 mm/s via considering the influence of blanking speed on the above factors synthetically.
There are some differences during separation process of metal and plastic blanking due to the different material properties, and the cross-section qualities after blanking also have their own characteristics.
The mechanical properties are as follows: modulus of elasticity is 1890 MPa, poisson ratio is 0.422, yield strength is 96 MPa, tensile strength is 152 MPa [5, 6].
The unilateral blanking clearance value of the insulation spacer is adopted as 0.02t via considering influence of blanking clearance on the above factors synthetically.
The blanking speed value of the insulation spacer is adopted as 90 mm/s via considering the influence of blanking speed on the above factors synthetically.
Online since: October 2009
Authors: Peter W.R. Beaumont
The Development of Modern Mechanical Design
For half a century or longer, those factors that influence the endurance boundary of composite
material on the one hand and performance limit of composite structure on the other have been the
subject of a great number of analytical investigations, validated by precise measurement of critical
property data.
Dimensions must be consistent with the overall function including minimum weight and there are data bases for materials properties to which designers can refer, (e.g., The Cambridge Materials Selector).
Why then, despite this vast acquisition of mechanical property data over a century or longer, our ability to fully understand that longstanding problem of fracture of structural materials remains restricted?
The "top-down method" of design, as it is sometimes called, begins with a macroscopic engineering model, a procedure that depends only on knowledge of straightforward macroscopically measurable properties, like hardness or yield stress, which an engineer can handle.
This provides us with scope for optimisation, where composite material properties vary continuously with some internal parameter that relates to composite architecture in some way.
Dimensions must be consistent with the overall function including minimum weight and there are data bases for materials properties to which designers can refer, (e.g., The Cambridge Materials Selector).
Why then, despite this vast acquisition of mechanical property data over a century or longer, our ability to fully understand that longstanding problem of fracture of structural materials remains restricted?
The "top-down method" of design, as it is sometimes called, begins with a macroscopic engineering model, a procedure that depends only on knowledge of straightforward macroscopically measurable properties, like hardness or yield stress, which an engineer can handle.
This provides us with scope for optimisation, where composite material properties vary continuously with some internal parameter that relates to composite architecture in some way.
Online since: February 2012
Authors: Li Wei, Huan Xia Zhang
The results of SFC tests show that the treated carbon fibers composites could possess excellent interfacial properties with mixed resins.
The mechanical properties of carbon fibers reinforced polymer composites are mainly controlled by the interfacial properties between the fiber and matrix even though they are also affected by the original nature of the fiber and matrix resin.
Plasma treatment modifies the uppermost atomic layer of the material surface without affecting its bulk characteristics.
The effect of plasma treatment on IFSS is researched that has two main factors.
[2] Jingqiang Hou, Xiaodong Zhou and Xinggui Zhou, Grafting of Poly(n-butylacrylate) -b-poly(2-hydroxyethyl methacrylate) on Carbon Fiber and its Effect on Composite Properties, Polymer-Plastics Technology and Engineering. 50:3, 260 – 265 [3] Ma, K., et al., Plasma treatment of carbon fibers: non-equilibrium dynamic adsorption and its effect on the mechanical properties of RTM fabricated composites.
The mechanical properties of carbon fibers reinforced polymer composites are mainly controlled by the interfacial properties between the fiber and matrix even though they are also affected by the original nature of the fiber and matrix resin.
Plasma treatment modifies the uppermost atomic layer of the material surface without affecting its bulk characteristics.
The effect of plasma treatment on IFSS is researched that has two main factors.
[2] Jingqiang Hou, Xiaodong Zhou and Xinggui Zhou, Grafting of Poly(n-butylacrylate) -b-poly(2-hydroxyethyl methacrylate) on Carbon Fiber and its Effect on Composite Properties, Polymer-Plastics Technology and Engineering. 50:3, 260 – 265 [3] Ma, K., et al., Plasma treatment of carbon fibers: non-equilibrium dynamic adsorption and its effect on the mechanical properties of RTM fabricated composites.