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In this study factors influencing the rates of emission of Acoustic Emission (AE) signals from propagating fatigue cracks were investigated.
Tables 1 and 2 outline the chemical composition and mechanical properties of the test material.
Table 1: Specified Chemical composition of 2014 T6 aluminium material Si Fe Cu Mn Mg Cr Zn Ti V Zr 0.82 0.18 4.40 0.71 0.59 0.05 0.04 0.01 0.01 0.00 Table 2: Mechanical properties of 2014 T6 aluminium material Yield Strength (MPa) Ultimate Tensile Strength (MPa) Mean 439 492 Fatigue tests were performed on a servo hydraulic test machine under constant amplitude loading with a frequency of 2 Hz and stress ratio of 0.1.
As in figure 3, Stages 1, 3 and 4 can be discerned, albeit with the hit rate significantly increased by a factor of 10.
AE Hit rates were significantly less than in figure 3 by a factor of 100 for crack lengths less than 25 mm.

Therefore, EAM is one of the most effective ways to simplify the processes, improving the reliability of the manufacturing processes and enhancing the properties of the final products.
As previously reported, another phenomenon involving the electroplastic effect is the dynamic recrystallization and phase transformation at a relatively low temperature occurring in a short processing time, formation of a special texture, and enhanced mechanical properties after EP manufacturing [5].
It is known that a magnetic field influences plastic properties of ferromagnetic mainly by displacing domain walls.
The application of both continuous and pulsed electric current and the effect on mechanical properties and plastic flow will be investigated in similar ways, leading to a better understanding of effect of the various parameters on the metal electroplasticity.
Machlin, Applied voltage and the plastic properties of ‘‘brittle’’ rock salt, J Appl.

The formation of intermetallic phases alters the properties of duplex stainless steel and is therefore a crucial factor in its performance.
The presence of these phases deteriorates the properties of steel, due to the uneven distribution of alloying elements and their depletion in adjacent regions [1, 2, 4, 5, 6].
The cooling rate is an important parameter that can affect time and temperature during exposure of the material to heat treatment or under working conditions.
Conclusion The cooling rate used after the solution annealing treatment affects the corrosion resistance of 2205 DSS.
Alvarez Armas: Recent Patents on Mechanical Engineering Vol. 1 (2008), p. 51

Markets for BNM appear to exist in every product sector where superior mechanical and physical properties (in particular, high strength, good strength-toweight ratio, and excellent fatigue life) are critical [2].
Novel properties pave the way to innovative application of these materials.
Enhanced mechanical properties of the nanostructured Ti made it attractive for application in sports requisites as well.
At the same time production of unique strength properties matching and even exceeding the properties of structural steels, open up prospects of substituting separate steel parts by nanoaluminum ones.
One of the important success factors is establishing of a spin-off company responsible for elaboration and realization of a strategy for promotion of BNM to the consumers' market and settlement of copyright transfers for the intellectual property.

Physical and mechanical property of the material was a key basis to determine the slope stability of waste pile.
Different material composition and diameter combination are all key factors that influence slope stability of waste pile.
As far as slope stability of the waste pile is concerned, difference of gradation and strain history are key factors of influence on failure.
References [1] Guanglong Huang, Jian Zhou, Xiaonan Gong: Stress-strain and Shear Strength Properties of Rock and Soil Materials of Waste Pile in Open Pit Mines.
[9] Jingping Wu, Yao Chu, Zhigang Lou: Influence of Particle Breakage on Deformation and Strength Properties of Calcareous Sands.

Nassr1,a and Wael Khair-Eldeen2,b 1Department of Civil Engineering, Assiut University, Assiut, 71516, Egypt 2Department of Mechanical Engineering, Assiut University, Assiut, 71516, Egypt aamrnassr@aun.edu.eg, bwaelmk@ittu.org Keywords: anchors, concrete, damage, dynamics, impact, strain rate, waves.
The ultimate load at splitting failure of an anchorage is affected by several factors such as the material properties of the concrete (concrete compressive strength); the size of the activated fracture surface (distances to the edges of the member or spacing in anchor groups); and the geometrical parameters of the anchors (anchor diameter and/or its embedment depth) [1].
It was found that the variation of the concrete strengths affected the loading capacity of the anchors by a maximum of 25%.

Fan1 1College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China, 210016 2College of Engineering, Nanjing Agricultural University, Nanjing, China, 210031 ashh@nuaa.edu.cn Keywords: Solid lubrication, Ti-6Al-4V, Grinding temperature, Microstructure Abstract.
The most influential factors affecting the grinding temperature were studied by conducting the experiments.
Microstructure of the ground surface layer.The microstructure of the ground surface layer is essential to the service property of the workpiece due to the distortion of crystal lattice during the plastic deformation of the surface layer under the grinding force.
The similitude of the microstructure of the surface layer with the mother material indicates that the lubricating property of the graphite and HBN are effective in reducing the frictional forces at the wheel-workpiece interface and the deformation of the surface layer of the workpiece.

In this paper, a stable and controllable mechanical device was designed and its reliability was tested and verified by theory design, underwater experiment and the finite element analysis.
And cracks would occur around the holes because of stress concentration phenomenon in the drilling process and there were inestimable factors affecting the piston cavity’s pressure ability.
The three-dimensional entity model with PVC materials properties was built in Pro/E software in the paper and the stress and strain of piston cavity could be analyzed [6,7] using powerful ANSYS finite element analysis function.

Placement Optimization for Thermal Performance of Embedded Power Chip Microwave Modules Using BP-GA Sheng Zhanga Zhaohua Wub Hongyan Huangc Pin Chend Tangwen Bie School of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin, China 541004 aguxing916@126.com, bemezdj@guet.edu.cn, chhywangyi@163.com Keywords: Thermal Analysis, BP Algorithm Network, Genetic Algorithm, Microwave Modules, Optimization Design.
Introduction Temperature is the key factors which affect the working reliability of electronic devices.
The embedded-chips of components are the main source of heat, the position of the chip directly affects the distribution of the temperature field, the unreasonable layout of naked chip will lead to high temperature gradient and temperature in the internal and external microwave modules, and then reduce the reliability and performance of the microwave modules, so in the stage of placement optimization design for thermal performance in embedded high power multichip modules, using computer to simulate the temperature after placement is very necessary.
ALL materials, packaging body sizes and corresponding material properties are shown in table 1.

Materials are differ in their mechanical and physical properties, behavior under different conditions of external influence.
Creating a mathematical model to describe the deformation of low alloy high strength steel is impossible without taking into account the physical and mechanical properties of the material.
In the literature, the properties of HSLA steels are inadequate, it’s need further research.
It is therefore necessary to study changes in the plastic properties of steel on the degree of deformation and external factors in the conditions of metallurgical production of continuous cold rolling mill.
The advantage of the engineered algorithm (determining hardening curve of the steel by the theoretical model) is the account of the main factors (the total degree of preceding deformation, strip temperature, strain rate) that affect on the level of yield strength in the process of cold rolling.