Search Options

Sort by:

Publication Type:

Open access:

Publication Date:

Periodicals:

Search results

Online since: December 2018
Authors: Yoichi Kayamori, Yuko Ishibashi
The chemical composition and mechanical properties of the plate are shown in Table 1.
Table 1 Chemical composition and mechanical properties of a steel plate, SM490A Chemical composition [mass%] Mechanical Properties C Si Mn P S σYS [MPa] σTS [MPa] 0.16 0.03 0.34 0.014 0.002 418 565 Fig.2 Corrosion fatigue test apparatus (Unit: mm) (b) (a) Fig.1 Configuration of fatigue test specimens (a) Specimen with weld beads (b) Specimen without weld beads ×: Locations of residual stress measurement Fig.3 Schematic illustration of corrosion pit Corrosion fatigue tests.
Fig.4 Changes in residual stress during fatigue tests Corrosion fatigue properties.
It is therefore insufficient to explain that corrosion fatigue properties are affected by the residual stress as the mean stress simply.
In the low stress range region, corrosion fatigue properties of specimens with weld beads cannot be estimated using the modified Goodman relation; the residual stress did not affect corrosion fatigue mechanically, but also affect it corrosively.
Online since: October 2014
Authors: Ya Jun Wang, Chang Gen Feng, Jian Wen Zhai, Fu Yang Li
Factors Influencing Dielectric Properties of A-171@CCTO/PVDF Composite Films Jian-wen ZHAIa, Ya-jun WANGb,*, Fu-yang LIc and Chang-gen FENGd State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China azhaijw121@sina.com, byajunwang@bit.edu.cn, c279834386@qq.com, dcgfeng@wuma.com.cn Keywords: CCTO, PVDF, A-171, Dielectric properties, Composite film.
The effect of pH and ethanol concentration on the dielectric properties of A-171@CCTO/PVDF were studied.
Ceramic/polymer composite films combine the advantages from the polymers which meet the requirements for the low cost organic substrate process, i.e. low temperature processibility, mechanical flexibility and low cost, with the advantages from the ceramic, such as desirable dielectric and electrical properties [2,3].
The dielectric properties of the films were measured by an impedance analyzer (HP4192A).
Ren, Dielectric properties of CCTO/PVDF composite films, Adv.
Online since: September 2013
Authors: Jing Tao Wei, Ji Li, Tong Li
The forces analysis of non-magnetic particles in centrifugal force field It has been found out that the flow pattern in centrifugal force field is more complex and the motion of non-magnetic particles is affected by many factors [5].
Although both Magnus force and saffman force affect the motion of particles, this effect is seen to be small in the centrifugal separation of permanent flow [8,9].
In particular, the settling velocity and the square of particle size have positive correlation, so we can infer that the fine particles are more easily affected by hydrodynamic.
As apparent density and fluid property are two important control parameters, when the imposed magnetic field is moderate and the fluid property is better, the axial separation effect can be improved theoretically.
Therefore, the following work should be carried out by experiment on the grounds of the aforementioned mechanical model.
Online since: March 2012
Authors: Yu Mei Bao, Lei Wu, Li Jie Weng
And the measurement of mechanical properties typically the bonding strength is discussed.
The process parameters for plasma sprayed HA / ZrO2 bioceramic coating are optimized aiming to improve the mechanical properties.
Based on uniform design theory, spraying distance, spraying current, primary gas flow and auxiliary gas flow were chosen as design factors.
Mechanical properties such as Young’s modulus, bonding strength, and fracture toughness, have determining influence on the application of bioceramic coating.
Among the mechanical properties, bonding strength of a bioactive coating to a substrate affects successful implantation and long-term stability of the implant coated with the bioactive material significantly.
Online since: December 2011
Authors: Yun Zhong Liu, Feng Xain Li, Xia Luo
Considering the factors of microstructure, 600 °C is determined to be the best semi-solid forming temperature.
In many cases, materials in the form of powders are usually compacted through extrusion[1], hot rolling[2-4] , hot pressing [5], spark plasma sintering [6] and plasma activated sintering [7] to acquire fine microstructures with unique properties.However, it should be noted that the previous work only focused on a lower forming temperature compared with that in semi-solid rolling.The semi-solid processes involve high temperature applications affecting the microstructure of the strips, and thus altering mechanical properties.
Results and discussion Powders properties Fig.1.
Radchenko, Mechanical properties of green compacts II effect of powder relative bulk density on the strength of compacts with different forming temperature conditions, Powder Metallurgy and Metal Ceramics 43 (2004) 552-563
Li, Preferential orientation and thermoelectric properties of p-type Bi0.4Sb1.6Te3 system alloys by mechanical alloying and equal channel angular extrusion, J.
Online since: January 2012
Authors: Chihiro Watanabe, Ryoichi Monzen
The width of precipitate free zones (PFZs) has been found to be one of the factors affecting the fatigue life of the specimens at 423K.
Tensile properties were determined with an initial strain rate of 3.0 x 10-3 s-1.
Results and Discussion Mechanical Properties.
In the addition to the difference in Al3Sc particle sizes as mentioned above, the existence of PFZs can be pointed out as another factor affecting fatigue life.
Jensen, Mechanical properties and microstructures of Al-Mg-Sc alloys, Metall.
Online since: December 2024
Authors: Prajakta Mane, Ashok J. Keche, Swamini Chopra
Hardness, blend ratio, and crystallinity are some of the factors that greatly affect how well polymeric blends wear.
Investigation of the Effect of Polycarbonate Rate on Mechanical Properties of Polybutylene Terephthalate/Polycarbonate Blends.
On Structure and Properties of Amorphous Materials.
A new approach of microwave treatment to augment the mechanical properties of polymeric materials.
Understanding the structural changes, interfacial mechanisms, and mechanical properties of polymer/MWCNT nanocomposites after microwave treatment.
Online since: December 2012
Authors: Ramesh Chandra Agarwala, Vijaya Agarwala, Preeti Makkar
Such coatings are reported to provide excellent physical and mechanical properties.
EL coatings have unique physiochemical and mechanical properties for which they are being increasingly used.
Generally the concentration of particles codeposited in the EL coatings depends on various factors.
Factors Affecting the EL Coating Process The performance of EL deposits not only depends upon the bath constituents and its chemistry but also govern by various factors such as pH, operating temperature, bath loading factor, etc.
Also, in another study, the factors affecting the deposition rates and the crystallization behavior of amorphous Ni-B EL coatings have been investigated [18,19].
Online since: August 2013
Authors: De Shen Zhao, Meng Lin Xu
Introduction Maximum entropy principle is probability distribution of some actual analysis estimated objective physical system, the solution in maximum entropy is an objective ammbinount, it is not intended to subjective factors[1], and entropy method based on the maximum entropy is an objective evaluation method, in which the weighted value of evaluation index[2].
In order to remedy the deficiency in the conventional forecasting methods, This paper analyzes its factors affecting and the site observation data, New Method in Prediction of height of water conducted fissure zone by hierarchical analysis and neural network method, to predicted the height of water conducted fissure zone on the nose.
Tab.1 Parameter for height prediction of water fractured zone in work face roof Working face Geological condition Mechanical properties of rock mass Exploiting activity Height Depth Obliqity Mudstone ratio Pressive strength/pa Coal thickness/m Dip length goaf/m N1S1 458.9 7.5 24.67 170 12.42 227 205.9 N1N2 516.3 8 18.48 191 7.54 195 185.1 N1N4 458 7.5 13.14 175 11.4 207 211.2 N1S2 433.91 8 13.01 198.5 15.17 227 234 S2S7 784 6 20.45 187 10.95 230 219 XK S2S7 590 6.5 31.17 187 9.97 230 199 S2S9 717.7 8 12.8 213 9 277 Determination of Predictive Index Height of the Water Conducted Zone Index System Evaluation Model Based on Entropy Weight Method.
Tab. 3 Evaluation index weight prediction results Influence factor x1 x2 x3 x4 x5 x6 Predicted value/m Entropy weight 0.1739 0.1206 0.1733 0.1173 0.1794 0.2355 217.33 AHP weight 0.1007 0.0769 0.1145 0.1049 0.2410 0.3620 197.16 Average value 0.1373 0.09875 0.1439 0.1111 0.2102 0.29875 207.25 l The dominant influence was the exploration conditions, particularly incline length of coal face. the calculated results show that the influence of incline length of coal face is sensible,coal thickness is one of the main factors affecting it,the results are consistent with the theory.
l To a certain extent ,to be affected by mechanical properties of rock mass, The results are at great variance with theory, Geological environment conditions has little influence on it.
Online since: October 2008
Authors: Y.H. Huang, Zong Jun Tian, Hui Fan, Z.D. Liu, X.C. Wang
Profile geometry and current configuration are alternated in experiment and thought as the major factors influencing deposit surface roughening.
The results show that the surface of the deposits obtained by pulse electroforming has better performance in deposit thickness distribution and properties of the deposits.
The chart illustrates that deposition distribution depends, to a great extent, on the geometric and dimensional factors.
Properties.
Structure geometry was proved an important factor affecting processing quality.
Showing 4021 to 4030 of 25890 items