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Experimental Details This overview of factors affecting ductility of ultrafine grained materials prepared by severe plastic deformation will re-examine deformation and fracture in two sets of materials previously studied by the present research group [24-26].
Mechanical properties were evaluated on such heavily deformed materials, both in tension, using cylindrical samples of gauge diameter 3 mm and length 20 mm, and in compression, using cylindrical samples of diameter 3 mm and length 5 mm.
Irrespective of the details of internal stresses generated during the severe plastic deformation by the corresponding dislocation and grain boundary substructures, it is clear that stress/strain recovery during unloading, and the orientation of reloading relative to the prior deformation, will play a role in determining the initial flow stress (affecting it by 5-10%, see Fig. 7), as well as the work hardening rate over the first few percent of subsequent plastic deformation (affecting it by as much as a factor of 2, see Fig. 7).
Summary: Factors Influencing Uniform Deformation and Tensile Ductility of Ultrafine Grained Materials This review of the factors affecting the tensile plastic deformation response of ultrafine grained materials prepared by severe plastic deformation has emphasized several points which are not generally considered when examining the mechanical behaviour of these novel materials.
Firstly, the factors that influence the amount of uniform plastic strain, to the maximum stress, and those that influence the tensile ductility, are not the same.

Abstract: By means of mechanical properties test and structure observation, the relationship among electric field strength, polar molecule type, content on the Ni/TiO2 group electrorheological fluid properties have been analyzed.
It is found that with increasing electric field strength, the properties of electrorheological fluid increased for same composition ER fluid.
There are many factors affect the property and microstructure of ER fluid [4,5]., modified technique is one of most important factors affecting the ER property [6,7].
It has proved that polar molecule can greatly increase ER fluid properties.
This paper focuses on the research of properties and structure of Ni/TiO2 group electrorheological fluid modified with different polar molecule under different electric field.

By investigating the rules and degree which are obtained from the factors’ influence on bubbles morphology, it is actually meaningful that we can control and improve the bubbles morphology for improving the capability of Microcellular Foam Injection Molding materials.
Introduction The design of MCF (Microcellular foams) comes from the following two facts: (1) when the average diameter of bubbles is less than the crack which is in the polyfoam, the existence of bubbles will not reduce the strength of the materials; (2) Due to the presence of Microcellular, the crack tip will be passivated, so it prevents the crack extension within the stress, then improves the mechanical properties of plastic materials[1-4].
In this paper, different experimental factors such as the polymer melt temperature, the weight loss, the injection time and the gas content were changed individually to research these factors’ specific influences of micro bubbles’ morphology in the injection molding process.
Secondly, under the mechanical friction of Screw rotating and heater, it becomes melt.
So in this experiment, only four affecting factors (melt temperature, injection time, weight loss and gas content) were chosen to be investigated.

The bending deformation measurement and analysis of the thermo-mechanical properties of the fabricated IPMC is carried out.
Introduction Electro-active polymers (EAPs), also known as Artificial Muscles, belong to a class of smart materials that show strong relationship between the applied electric potential and their mechanical properties.
Due to these interesting properties, IPMCs are considered for various novel devices including micro-robot arms, micro-pumps, four-finger gripper, dust-wiper, robot fish and active catheters have already been proposed [4].
Thermo mechanical analysis.
However, researches are going on to find-out the effects of temperature and other influencing factors that affects the linear thermal expansion mechanism of IPMC film.

Various types of metals and alloys are used for medical implants due to their excellent mechanical properties and corrosion resistance; however, their lacks of osteoinductive properties bring about the introduction of biomaterials which can help enhancing the bioactivity between the bones and the implants.
Introduction Orthopaedic and dental implants made of metals and alloys have been used widely because metals and the alloys provide excellent mechanical properties as well as good corrosion resistance [1,2].
The L8(27) orthogonal array with 7 factors and 2 levels was selected as showed in Table 3.
After, the Taguchi method, affected factors were selected for a further statistical analysis of significance, thickness fit-equation, and optimal condition was obtained by a full factorial and response surface methods.
From results in Fig. 2, the factors and interaction that affected to the coated thickness were: the feed rate; the feed rate*air pressure volume; and the feed rate*time*air pressure volume because the p-value less than 0.005.

Introduction Sapphire corundum crystals are ultra-hard and brittle materials, which have good mechanical, chemical, thermal, electrical and optical properties.
Due to a lot of factors that affecting the processing quality, many processing techniques and processes should be improved combining with the processing efficiency and economy [3, 4].
In this paper, the main factors that affecting the sapphire corundum crystal plane processing are considered, such as, abrasive particle size, workpiece rotation speed, grinding speed and abrasive number per volume.
The major factos affecting the plane processing are primarily decided as follows: abrasive particle size, workpiece rotation speed, grinding speed and abrasive number per volume.
The factors and level table are shown in Table 1.

Using Design of Experiments method are identified factors that significantly affect the value of the impact load.
Introduction Knowledge of the mechanical properties of conveyor belts (CB) is among the important prerequisites for trouble-free operation of conveyors [1].
The dynamic characteristics of the belt conveyors largely determine the properties of the belt [3].
Factors and interactions that do not affect lie close to a portrayed straight line (Fig. 4).
Nedbal, Mechanical and ultrasound properties of conveyor belt rubbers, in: SGEM2011 Conference Proceedings, Bulgaria, 2011: pp. 839-844

In this study, the effect of process parameters on microstructure and mechanical properties of friction stir welded aluminium matrix composites(AMC) have been explored.
Fig. 6 Mechanical Properties of FSW composite.
Fig. 6 presents the mechanical properties of composite joints FS welded using CSTPP tool.
Hence lower tensile properties were obtained at higher rotational speed.
Processing variables such as rotational speed and welding speed are the significant factors to be considered in joining of composite material to obtain defect free and good quality of joint.

ahaochidehj94@163.com Keywords: concrete; cryogenic temperature; temperature field test; numerical simulation Abstract: The mechanical properties of concrete under cryogenic temperature (-165℃) are affected by the temperature field inside the concrete.
According to the present researches, the mechanical properties of the concrete under cryogenic temperature are not only affected by the moisture content but also by the temperature inside the concrete.
(2) According to heat transfer law, the main factors affecting the temperature field are thermal conductivity (λ) and specific heat capacity (C).
Miura, Mechanical properties of concrete at very low temperatures, Proceedings of 21st Japan Congress on Materials Research (Japan, 1978), The Society of Materials Science: 157-159
Liu: Test research in mechanical properties of concrete under low temperature (M.S.

Due to the fact that the scholars have put few emphases on the influence of corrosive environment which inevitably affects the fatigue property of steel bridge, an experiment design of corrosive and fatigue property of steel box girder with the specific environment controlling equipment is taken into account.
In china academy of railway sciences the mechanical characteristics of the orthotropic steel bridge panel by the static experiment of the real bridge, dynamic experiment of the real bridge, and the full-scale model static test were all studied [8-9].
So it has important engineering significance and practical significance to study the fatigue properties of the steel box girder of the bridge in the corrosion environment.
The study is the fatigue property of steel box girder in corrosive environment, and the steel box girder of contact corrosion medium is air, therefore, the corrosion of steel box girder is mainly affected by atmospheric corrosion, namely due to the moisture in the air, oxygen, and corrosive medium to cause chemical and electrochemical reactions.
So this article will select the ocean atmospheric as the corrosion of the corrosion environment, but considering the existing laboratory equipment and other factors, the specific environment controlling equipment called multi functional corrosive sprayer equipment shown in Fig.3 is utilized to imitate the marine atmosphere corrosion.