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Online since: January 2021
Authors: Maouche Hichem, Ali Hadji, Khedidja Bouhamla, Amel Gharbi, Oualid Ghelloudj, Saleh Remili, Samia Chettouh
The target aimed in this work is to achieve a comparative study taking into account the type of microstructure, mechanical properties, and wear behavior of these two kinds of materials.
One of their most important efficiency factors is described in terms of wear resistance.
Gavrilovski, Microstructure and mechanical properties of Fe-Cr-C-Nb white cast irons, Materials and Design 47 (2013).41-48
Zhang, Below-Ms austempering to obtain refined bainitic structure and enhanced mechanical properties in low-C high-Si/Alsteels, Scr.
Moroz, Factors affecting the wear grinding media during wet ore grinding when the corrosive component of wear is small, ht, Corrosion Forum Devoted Exclusively to the Protection and Performance of Materials, Boston, MA, March 1985
Online since: September 2014
Authors: Chun De Jin, Zhe Wang, Wei Gang Zhang
Introduction Bamboo is a viscoelastic material which will significantly affected the bamboo mechanical properties by moisture content, bamboo stalk parts, bamboo age, site conditions, payload type load frequency and the external environment such as temperature and humidity, especially in the practical application more affected by temperature, dynamic alternating loads.
Test Methods The Dynamic mechanical analyzer (DMA Q800) was used in this test. 
Hygrothermal Effects of Bamboo by Dynamic Mechanical Analysis.Journal of Nanjing Forestry University.
Variation of the viscoelastic properties of wood as a surface finishes substrate.
Analysis on Dynamic Mechanical Properties of Phyllostachys pubescens Material.
Online since: January 2013
Authors: Yi Nie, Cheng Jia Shang, Xin Lai He
Some scholars believe that the morphology, distribution, amount, size and structure of M/A in steels play a vital roles to the mechanical properties of steels especially to the toughness [8,9].
Consequently mechanical properties, especially the impact toughness will change at such situation.
When tempered at 700˚C it differs greatly from that tempered under 650˚C, because of following two factors: (1) The carbon atoms diffuse faster and more widely;(2) The ferrite around the retained austenite tends to reaustenize.
A, The effect of cooling rate on structure and properties of a HSLA forging, Scripta Materialia, 48(2003),No.1, p.51
Effect of tempering temperature on the mechanical properties and microstructure of an copper-bearing low carbon bainitic steel, Journal of University of Science and Technology Beijing, 15(2008), No.1, p.38
Online since: July 2011
Authors: Yong Ling Yu, Li Hua Lv, Wei Kong
The results showed that the priority order of the factors was reaction time > acid mass fraction > reaction temperature > solid-liquid ratio.
In order to optimizing the separation process of polyester-cotton blended fibers, we selected four factors such as acid mass fraction, reaction time, reaction temperature and solid - liquid ratio and each of the factors was endowed with three levels.
To discuss the concrete influence of process parameters on the separation effect and further optimize the reaction process, the single-factor experiment analysis was taken on the significant factors.
(a): before reaction, (b):reaction for 30-min, (c) :reaction for 60-min, (d):reaction for 80-min, (e):after reaction Conclusions (1) The order of the factors affect the separation was: reaction time> acid mass fraction > temperature> solid - liquid ratio.
After separation, polyester can be thermal depredated or re-span if the mechanical properties of strength and other physical conditions allowed.
Online since: December 2012
Authors: Jun Lv, Li Jiao Pan, Wei Min Yang, Xiao Lei Deng
According to the literature the paper lists five different kinds of loads affecting the stability analysis of pumper and discusses the verification methods and the principles of judgments.
Affecting loads of the stability.
The reliability of the ladder structure is to the most critical factors in firefighting and rescue work.
Conclusions This paper analyzed the stability of the self-designed pumper, getting five types of loads affecting the stability, and discussed the verification methods and the principles of judgments.
In addition, other properties of products still need further experimental verification after the completion of the trial production.
Online since: January 2013
Authors: Jenn Sen Lin, Cheng Hsing Hsu, Wen Shiush Chen, Hsin Han Tung, Yu Chuan Chen
The microwave dielectric properties of (Ca0.2Sr0.8)3Ti2O7 ceramic system have been investigated with various pressure conditions.
The (Ca0.2Sr0.8)3Ti2O7 had excellent dielectric properties: Q×f ~ 50,000 (GHz) and εr ~ 63.2 for the sample at 70 Kg/cm2.
The decrease in density may also directly affect the microwave dielectric properties of the (Ca0.2Sr0.8)3Ti2O7 ceramics.
Fig. 4 The quality factor (Q×f) value of the (Ca0.2Sr0.8)3Ti2O7 ceramics with various pressure conditions Conclusion Microwave dielectric properties of the (Ca0.2Sr0.8)3Ti2O7 with different pressure conditions were investigated.
Ohsato, Microwave Dielectric Properties of BaxLa4Ti3 + xO12 + 3x (x = 0.0–1.0) Ceramics, J.
Online since: April 2008
Authors: Waldemar Alfredo Monteiro, S.J. Buso, A. Almeida Filho, R.B. Ferrari
E-mail: física.cch@mackenzie.com.br Abstract Al-Mg based alloys have special attention due to the lightness of the material and certain mechanical properties and reciclability.
Such alloys cause good mechanical properties in moderate mechanical efforts (up to 700 MPa) and good resistance to the corrosion [1-5].
Theoretical Aspects The mechanical properties are influenced by the temperature, deformation rate in the processing and the way as the material is deformed.
The influence of the particles depends on a number of factors and on whether the particles are present during deformation or whether they form during the subsequent anneal before recrystallization occurs [5- 8].
E.: Aluminum Properties and Physical Metallurgy, ASM, USA, 1984
Online since: July 2013
Authors: Xian Kui Zeng, Guo Zong Song, Shuai An, Dong Wang, Shu Hong Zhao
So that we can determine which collocation of the factor level is the best and which factor affects the mixing quality most with the least experiments.
Seen from Fig. 1 (Fig. c, d, e), the effect of roller spacing e on the 300% stress at definite elongation, tensile strength, tearing strength, and other physical and mechanical properties exists an optimum value [2].
Seen from Fig. 2(Fig. c, d, e), the effect of roller speed n on the 300% stress at definite elongation, tensile strength, tearing strength, and other physical and mechanical properties exists an optimum value.
Seen from Fig. 3(Fig. c, d, e), the effect of roller speed ratio f on the 300% stress at definite elongation, tensile strength, tearing strength, and other physical and mechanical properties exists an optimum value.
Seen from Fig. 5(Fig. c, d, e), the effect of mixing time t on the 300% stress at definite elongation, tensile strength, tearing strength, and other physical and mechanical properties exists an optimum value.
Online since: September 2020
Authors: Andrey Bogatov, Alexey Bulgakov, Dmitriy Gubanov, Vladimir Erofeev
The studied properties were the strength and elastic modulus.
It is important that the filler is wetted by the polymer and thus affects the increase in strength and other properties of the composites.
The strength, deformability and other properties of frame composite materials are determined by many factors: the properties of the fillers and the matrix, the ratio of their elastic properties, the degree of adhesive interaction between the filler and the matrix, etc.
A wide variety of fillers and matrix compositions allow to obtain the frame composites with various physical and mechanical properties.
Salimbekov, The structure and properties of composite materials, Moscow, 1979
Online since: April 2012
Authors: Tao Bai, Qing Lian Zhang
Introduction Plasma-assisted surface modification is an important material process for modifying material surface properties [1-3].
The energy of incident ions and the energy transfer are important factors in the sputter-etching process.
The change in the surface topography also affected the etching velocity.
An increased roughness affects sputter-etching yields by locally varying the angle of incidence.
The competition of these two factors explains why the dependence of the sputter-etching yield on the angle of incidence peaks at a particular incidence angle.
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