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Online since: December 2024
Authors: T. Vela, S. Ramaswamy, J. Beryl Jancy, S. Sudharthini
It is mostly located by the material's properties and size.
Some important properties of L-asparagine amino acid are given here.
Each mineral exhibits unique X-ray diffractive properties determined by its atomic composition and the arrangement of its crystal lattice.
All formed crystals in the current investigation had work hardening factors that are higher than 1.6.
[8] http ://Wikipedia.org/properties-of-L- asparagine.Amino, FreeDictionary.com, Farlex . 2015, Retrieved 3 July 2015
Some important properties of L-asparagine amino acid are given here.
Each mineral exhibits unique X-ray diffractive properties determined by its atomic composition and the arrangement of its crystal lattice.
All formed crystals in the current investigation had work hardening factors that are higher than 1.6.
[8] http ://Wikipedia.org/properties-of-L- asparagine.Amino, FreeDictionary.com, Farlex . 2015, Retrieved 3 July 2015
Online since: May 2004
Authors: J. Budinski-Simendić, Z.Lj. Petrović, V. Lazić, R. Radičević, V. Divjaković
The degree of crystallization and regularity
of crystallite size have noticeable effects on the properties of bulk polypropylene.
Control of crystallization and crystallite size could impart unique properties of thin films.
The addition of heterogeneous nucleating agents is a widely used way of controlling the application properties.
Mechanical and optical properties as well as cycle-time in processing and the post-processing behavior can be influenced by a variety of substances.
This multilevel structure causes rather unique properties, which vary with the thermal and mechanical history of the materials.
Control of crystallization and crystallite size could impart unique properties of thin films.
The addition of heterogeneous nucleating agents is a widely used way of controlling the application properties.
Mechanical and optical properties as well as cycle-time in processing and the post-processing behavior can be influenced by a variety of substances.
This multilevel structure causes rather unique properties, which vary with the thermal and mechanical history of the materials.
Online since: December 2013
Authors: Stephen Yue, Seyed Mohammad Kazem Hosseini, Abbass Zarei-Hanzaki
In a recently-developed low-silicon content TRIP-assisted multiphase steel, outstanding mechanical properties are achieved after two-stage intercritical annealing and bainitic holding heat treatment [4].
To achieve an appropriate microstructure and hence the optimum mechanical properties in multiphase TRIP-assisted steels through thermomechanical processing, the effects of process variables on microstructural characteristics have to be thoroughly identified.
Some literatures [13], [14] emphasized on increasing VRA% and improving mechanical properties after deformation while there are other reports [15] indicated the opposite effects of deformation.
Previous literature emphasized on retained austenite composition, size, and morphology as three main factors affect stability of RA particles.
According to several workers, these morphologies can effectively control the mechanical properties of TRIP steels.
To achieve an appropriate microstructure and hence the optimum mechanical properties in multiphase TRIP-assisted steels through thermomechanical processing, the effects of process variables on microstructural characteristics have to be thoroughly identified.
Some literatures [13], [14] emphasized on increasing VRA% and improving mechanical properties after deformation while there are other reports [15] indicated the opposite effects of deformation.
Previous literature emphasized on retained austenite composition, size, and morphology as three main factors affect stability of RA particles.
According to several workers, these morphologies can effectively control the mechanical properties of TRIP steels.
Online since: June 2012
Authors: Quan Shi, Tie Lin Liu, Cheng Zhang, Wu Kui Zhao
The structure complexity and function variability of integrated electronic information system result in the fact that its damage evaluation index includes multinomial factors.
In order to establish the evaluation index system, factors inflecting integrated electronic information system comprehensively are selected on basis of analyzing the function requirement of it.
Define the evaluation factor set as, where represents all kinds of effective factors in index system of integrated electronic information system, which can be derived from its function index system.
Each-level factors’ judgement matrix are constructed firstly to deciding the weighting of each factor.
The matrix has consistency property as, .
In order to establish the evaluation index system, factors inflecting integrated electronic information system comprehensively are selected on basis of analyzing the function requirement of it.
Define the evaluation factor set as, where represents all kinds of effective factors in index system of integrated electronic information system, which can be derived from its function index system.
Each-level factors’ judgement matrix are constructed firstly to deciding the weighting of each factor.
The matrix has consistency property as, .
Online since: May 2012
Authors: Nian Jie Ma, Zhi Qiang Zhao, Hua Zhao, Li Shuai Jiang
The immediate roof consists of mudstone and Muddy siltstone which has the high swelling property.
Measuring Ground Stresses and its Affect on the Stability of Surrounding Rock Results of measuring ground stresses.
Affect on the stability of roadway surrounding rock.
Based on the theory of the maximum stress level [4], the stability of roadway roof and floor is deeply affected by horizontal stress if horizontal stress in surrounding rock of roadway is greater than vertical stress.
In order to make the rock deformation around roadway of high stress soft rock roadway under control and increase the safety factor, the roadway T1493 use full section bolting net spray which showed by Fig.5.
Measuring Ground Stresses and its Affect on the Stability of Surrounding Rock Results of measuring ground stresses.
Affect on the stability of roadway surrounding rock.
Based on the theory of the maximum stress level [4], the stability of roadway roof and floor is deeply affected by horizontal stress if horizontal stress in surrounding rock of roadway is greater than vertical stress.
In order to make the rock deformation around roadway of high stress soft rock roadway under control and increase the safety factor, the roadway T1493 use full section bolting net spray which showed by Fig.5.
Online since: July 2006
Authors: Dun Wen Zuo, Rong Fa Chen, Bing Kun Xiang, Duo Sheng Li, Li Gang Zhao
DC-Plasma arc behavior is one of the key factors on growth of diamond film.
Plasma arc behavior was a key factor on influencing H*.
They affects quality of diamond film, as Fig.3(a).
Wang: China Mechanical Engineering, Vol.18 (2004), pp.1676-1678
Zhang and et al: China Mechanical Engineering, Vol.4 (2004), pp.435-436.
Plasma arc behavior was a key factor on influencing H*.
They affects quality of diamond film, as Fig.3(a).
Wang: China Mechanical Engineering, Vol.18 (2004), pp.1676-1678
Zhang and et al: China Mechanical Engineering, Vol.4 (2004), pp.435-436.
Online since: February 2011
Authors: Cecilia Borgonovo, Diran Apelian
When all these factors are taken into account, the increase in mechanical properties with the decrease in size can be estimated.
Therefore, crack initiation on particle surface is more likely to occur, affecting life duration of the component.
The knowledge of properties of the composite material, such as tribological properties, is fundamental for the design stage.
The optimal method to determine such properties for nanocomposite materials needs to be established.
Koch in Nanostructured Materials: Processing, Properties, and Applications, edited by William Andrew, (2006)
Therefore, crack initiation on particle surface is more likely to occur, affecting life duration of the component.
The knowledge of properties of the composite material, such as tribological properties, is fundamental for the design stage.
The optimal method to determine such properties for nanocomposite materials needs to be established.
Koch in Nanostructured Materials: Processing, Properties, and Applications, edited by William Andrew, (2006)
Online since: August 2021
Authors: Alexander A. Sitnikov, Vladimir I. Yakovlev, Anastasia A. Popova
The using of premixes significantly affects the formation of structure and properties of the finished product.
In the experiment, 3 groups of mechanocomposites were used: 1) Ti + Al, mechanical activation time 3 min. 2) Ti + Al, mechanical activation time 7 min. 3) Ti + Al, mechanical activation time 10 min.
Martynenko, Factors determining the efficiency of magnetron sputtering.
Sushentsov, A.Yu Klochkov, Dependence of morphology, properties, thermal and stressed states of films on process parameters of electric arc evaporation, Tekhnologiya Metallov. 11 (2010) 38-42
Faheem, Study on structural, morphological and electrical properties of sputtered titanium nitride films under different argon gas flow, Materials Chemistry and Physics. 134(2-3) (2012) 839-844
In the experiment, 3 groups of mechanocomposites were used: 1) Ti + Al, mechanical activation time 3 min. 2) Ti + Al, mechanical activation time 7 min. 3) Ti + Al, mechanical activation time 10 min.
Martynenko, Factors determining the efficiency of magnetron sputtering.
Sushentsov, A.Yu Klochkov, Dependence of morphology, properties, thermal and stressed states of films on process parameters of electric arc evaporation, Tekhnologiya Metallov. 11 (2010) 38-42
Faheem, Study on structural, morphological and electrical properties of sputtered titanium nitride films under different argon gas flow, Materials Chemistry and Physics. 134(2-3) (2012) 839-844
Online since: April 2012
Authors: Hong Jing Zhang
Oil producer, mining methods and other factors changing the nature of crude oil emulsions.
There are many factors that affect the stability of crude oil emulsion, such as crude oil density, viscosity, water content, droplet diameter, droplet charged, the nature of the water phase, crude oil solids, viscosity and interfacial film strength and the aging of the emulsion, etc., this large number of factors increase the crude oil emulsion stability study of complexity.
Borve and Sjoblom et al. [9] in the study of copolymers of styrene and allyl alcohol with sixteen or twenty benzene amine alkyl amine to form a mixture of the nature of the monolayer was found: the formation of surface-active substances the mechanical properties of interfacial film is W / O emulsion stability of the key.
These solid particles stabilize emulsions depends on the following factors: particle size, particle interactions and particle wetting properties.
North Sea crude oil surfactant component properties [J].
There are many factors that affect the stability of crude oil emulsion, such as crude oil density, viscosity, water content, droplet diameter, droplet charged, the nature of the water phase, crude oil solids, viscosity and interfacial film strength and the aging of the emulsion, etc., this large number of factors increase the crude oil emulsion stability study of complexity.
Borve and Sjoblom et al. [9] in the study of copolymers of styrene and allyl alcohol with sixteen or twenty benzene amine alkyl amine to form a mixture of the nature of the monolayer was found: the formation of surface-active substances the mechanical properties of interfacial film is W / O emulsion stability of the key.
These solid particles stabilize emulsions depends on the following factors: particle size, particle interactions and particle wetting properties.
North Sea crude oil surfactant component properties [J].
Online since: December 2016
Authors: Philippe Bocher, Hamid Javadi, Myriam Brochu, Walid Jomaa, Damien Texier
Surface Roughness Effects on the Fatigue Behavior of As-Machined Inconel718
Hamid Javadi1,a, Walid Jomaa1,2,b, Damien Texier1,c, Myriam Brochu3,d
and Philippe Bocher1,e
1 Mechanical Engineering Department, École de Technologie Supérieure, 1100 Rue Notre-Dame Ouest, Montréal, H3C 1K3, Québec, Canada
2 Mechanical Engineering Department, Laval University, 2325 Rue de l’université, Québec, G1V 0A6, Québec, Canada
3 Mechanical Engineering Department, École Polytechnique de Montréal, 2900 Boulevard Édouard-MontPetit, Montréal, H3T 1J4, Québec, Canada
*ahamid.javadi.1@ens.etsmtl.ca, bwalid.jomaa.1@ulaval.ca, cdamien.texier.1@ens.etsmtl.ca, dm.brochu@polymtl.ca, ephilippe.bocher@etsmtl.ca
Keywords: Inconel718, high cycle fatigue life, turning, surface roughness, crack path.
Introduction Wrought Inconel718 (In718) is a commonly used nickel-base superalloy for the fabrication of massive rotating components due to its excellent mechanical properties and corrosion resistance, especially at high temperatures [1].
Surface integrity induced by machining is particularly important for critical structural components subjected to alternative stresses in service and is well known to strongly affect fatigue life, especially in the low stress amplitude, high cycle fatigue regime [3].
In general, height roughness parameters exhibit a better correlation with HCF life, in agreement with [5], suggesting that fatigue stress concentration factors are well described by these parameters.
The limited number of the HCF tests (three) performed for each condition and the corresponding dispersions are likely to affect the Adj.R2 negatively.
Introduction Wrought Inconel718 (In718) is a commonly used nickel-base superalloy for the fabrication of massive rotating components due to its excellent mechanical properties and corrosion resistance, especially at high temperatures [1].
Surface integrity induced by machining is particularly important for critical structural components subjected to alternative stresses in service and is well known to strongly affect fatigue life, especially in the low stress amplitude, high cycle fatigue regime [3].
In general, height roughness parameters exhibit a better correlation with HCF life, in agreement with [5], suggesting that fatigue stress concentration factors are well described by these parameters.
The limited number of the HCF tests (three) performed for each condition and the corresponding dispersions are likely to affect the Adj.R2 negatively.