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Introduction The austenitic stainless steel has been widely used because of its good mechanical characteristics like strength, ductility and corrosion resistance under the critical conditions.
The mechanical properties of STS316L steel given as follows; yield strength=267MPa, tensile strength=585MPa, elongation=67% and HRB=310.
When the same fatigue stress is loaded, because the factors such as small grain size, hardness and fracture toughness act as resistance factors at the stage I and II in the fracture mode, the fatigue crack growth is delayed more than BM.
From the result, big grain and ferrite band were shown to act as obstructive factors of the ultrasonic wave progress in welds [1-3, 5-7].
From the correlations between these factors, the attenuation factor α can be considered as a factor to reflect the constant m of the Paris equation, and longitudinal wave velocity V (L) and longitudinal wave center frequency f (L) can be considered as a factor to reflect the constant log C of the Paris equation.

Experimental Study on Nano-TiAlN Coated Carbide Tools in Turning Austenitic Stainless Steel Haidong Yang1,a, Zhi Ding1,b 1School of mechanical and automotive engineering, Hefei University of Technology, Hefei 230009, China ayhdsky@sina.com, btodddz@163.com Key words: Nano-TiAlN coating; 0Cr18Ni9 ; tool life; wear mechanism.
These problems have affected the production efficiency seriously, increased the processing costs, so, how to improve the cutting efficiency of this material is is very important and very meaningful.
These factors will cause the tip at high cutting temperature, chip adhesion edge serious, prone to bue tumors, not only accelerated the tool wear, and also affect the surface roughness.
In addition, because the chip is not easy to curl and break, which can damage the machined surface, affect the workpiece quality.
Because of the material properties of austenitic stainless steel with high temperature, good wear resistance and toughness in processing, so,chemical stability (antioxidant activity) of the coated cutting tool materials has placed enormous demands.

Introduction Axial compression ratio is one of important indexes that affect the seismic performance of reinforced concrete members, the concrete column refers to design value of axial pressure and the whole cross section area of the column and design value of axial compressive strength of concrete product, the ratio of its computation formula is as follows: n=N/fcA (1) Where, N is design value of frame column axial pressure in consider of earthquake action, Fc is axial compressive strength of concrete, A is column area.
We applied the sliding support along the horizontal direction on the Model upper middle pillars, and the fixed end located the bottom of the down column, the Y direction constraints imposed on the side of the two floors which include the beams inflection point, while two side is the rest of the free surface, finally, axial force along the negative Y direction was applied on the pillars; In order to simulate the action of earthquake with the method of step by step loading, we applied quasi static displacement along the X negative direction; In order to study the mechanical properties of node under axial pressure ratio（0.2, 0.4, 0.6）, We analyzed the model of seismic force performance of carbon fiber reinforced nodes and ordinary nodes under three kinds of axial compression ratio.
Conclusions The axial compression ratio is one of the important factors affecting the ductility of the carbon fiber reinforced column, The ductility of node will be improved when reinforced, when the axial compression ratio is small, The ductility of column increase obviously; and when nodes at the end of column have been reinforced by carbon fiber, The bearing capacity of the columns will increase, the bigger the axial compression ratio become, The greater the bearing capacity of column increase relatively larger, Strong column weak beam effect is remarkable.

Discrete element method (DEM) is a kind of numerical method developed in the 1970s, which is calculated for granular media mechanical behavior [4].
Simulation experiment Dry sand filling process is related to vibration parameters, shape of flask, buried depth and a number of factors, the law of dry sand filling process under different vibration form was studied by using three dimensional DEM in this article, and by investigating dry sand filling number and the motion flow pattern of sand group to study sand group motion characteristics.
But affected by gravity, Z acceleration produced by Z vibration needs to overcome the influence of gravity, thus reduce the filling performance of Z vibration.
(3) Sand group filling motion is also affected by the tube wall, the vibration perpendicular to the tube wall can make the movement of sand group more intense.
Tan, et al: Properties of Sand Filling and Compaction in Pattern Cavity of Horizontal Varied Section on EPC[J].

Farzalipour Tabriz3,d 1 Department of Material Science and Engineering, Faculty of Mechanical Engineering, K.
ZnO nanoparticles because of their interesting properties and various morphologies, has become one of the most attractive nanomaterials for research objectives.
Its significant properties has made it applicable in UV-Light emitters, varistors, transparent high power electronics, gas sensors, etc., [1].
Introduction ZnO, because of its interesting properties and various morphologies, has become one of the most attractive nanomaterials for research objectives.
Its significant properties has made it applicable in UV-light emitters, varistors, transparent high power electronics, surface acoustic wave devices, piezo-electric transducers, gas sensors, etc. [1].

We synthesized Waterborne blocked polyurethane with the good properties of non-yellowing, temperature resistant.
Sodiumhydrogensulfite(NaHSO3, ShangHai jingchun Reagent Co., Ltd ), Iso-Propyl alcohol(C3H8O, ShangHai jingchun Reagent Co., Ltd), Iodine(I2, ShangHai jingchun Reagent Co., Ltd), Potassium Iodide(KI, ShangHai jingchun Reagent Co., Ltd) Measurements We investigated the factors that affect the blocking reaction and prepolymerization reaction. we choose "di-n-butylamine-toluene" method to determine isocyanate group in polyurethane. we choose iodine titration to test end-capped ratios.
Preparation of polyurethanes seeded emulsions The reaction was conducted in a 500mL flask, four-necked flask, equipped with a mechanical stirrer, a nitrogen gas inlet, and a condenser.
Waterborne polyurethanes and their properties.
Synthesis and properties of blocked aliphatic waterborne polyurethane used in textile finishing agent[J ].

Therefore, getting the right elastic matrix in arbitrary coordinate system is the prerequisite to analyze the mechanical behavior of this metal.
This structure results in highly orthotropic material properties.
For the X2-Y2-Z2 coordinate system, according to the symmetry and the NBSCS’s properties (, , , ), six independent elastic constants can be obtained: They are elastic modulus E001 and E110, Poisson's ratio ν001-110 and ν110-110 and the shear modulus G001-110 and G110-110.
For the X3-Y3-Z3 coordinate system, because the NBSCS’s physical properties is different in three axes, there are a total of nine independent elastic constants in the elastic matrix.
Based on equation (8), the precision of elastic matrix will affect the elastic stress in strain loading, and thus affect the shear stress according to Schmid law, and therefore have effect on the slip rate (equation 23) and the evolution of the strain hardening(equation 24).

The microstructural changes occurring in the microstructure of molten zone (MZ) and heat affected zone (HAZ) have been investigated by optical and scanning electron microscopy (SEM) observations and energy dispersion spectroscopy (EDS).
Since these mechanical components are extremely expensive, their repairing by welding is more advantageous than replacement, however it is not an easy task.
This depend on two factors: first the portion of the material not melted induce condition high local self-constraints; second the amount of fused zone is larger than other cases.
In conclusion laser promise to realize joints of good quality, a more accurate control of cooling conditions during welding, different wobbling parameters and pulsed as indicate in literature [13] and suitable post-welding heat treatments are under investigation to reduce porosity and recover as far as possible the original characteristics and properties of the alloy.
Sammy in “Nickel-Based Superalloys for Advanced Turbine Engines: Chemistry, Microstructure, and Properties”, University of Michigan, Ann Arbor, Michigan 48109, University of Cambridge, Cambridge, England CB2 3QZ, United Kingdom, 2006

Contrast to the sintering produce and sintering-cup experiment, the mini-sintering can analyze the single factor one by one due to avoiding the effects of mixture, pelleting, distribution, sintering and processing operational parameter, therefore, the mini-sintering is more adapting to study the sintering mechanism.
The mechanical property of the sinter ore is determined by its inner structure in nature, for the complexity and non-linearity of inner structure in the sinter ore, its mechanical property indicates indeterminacy and irregularity, which lead to the fact that no quantification theory can describe the mechanical property of the sinter ore.
Calculational flow of fractal dimension of grain distribution The sinter ore is a kind of aggregation comprised many minerals, therefore, many factors can influence metallurgy quality of sinter material, including distribution of the grains and pores, and boundary characteristic of the grains and glasses, etc.
The fractal dimension of the samples decreases with the silica content increasing in the experiment , however, the compression strength of the samples has the highest value (as shown in Fig.3) when the silica content is 3.8 wt%, which is disaccordant with the result of sintering-cup experiment[4], therefore there are other factors which have affected the compression strength.

On the other hand, metals are widely used as biomaterials like stents, hip joints and bone plates with a long history, since metals have good mechanical properties, especially toughness, and long terms durability.
If once polymer and metal were bonded and used as a composite material, a new material having good biocompatibility and high mechanical strength could be created.
However, most of research on bonding with silane coupling agent in the dental material field were only investigated about bonding force, and there is few report that examines which factors of the silane coupling agent influences the bonding.
From these experimental, factors that affect on bonding were specified.
Factors governing shear bonding strength between Ti and SPU was thickness of γ-MPS layer.