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The range of mechanical properties including consideration of residual stress, fracture, fatigue and corrosion were discussed.
The comparison between microstructure and mechanical properties of the two different joints was investicated.
The recent advances in the microstructural evolution and mechanical properties of FSW aluminum alloys are discussed.
The more attention gives to recrystallization mechanism, grain boundary characteristics, phase transformation, texture evolution, characteristic microstructures, and the effect of these factors on the hardness, tensile and fatigue properties as well as superplastic behavior of FSW/FSP aluminum alloys [13].
The Minitab statistical software is used to draw the 9 experimental conditions as per the Taguchi L9 experimental design considering three factors at three levels.

The properties of other materials, namely aggregates (medium sand and gravel) and admixtures (polycarboxylate-based superplasticizer and sodium sulfate), were determined through literature review.
By doing this, the optimal combination of the four factors showed up.
Table 2 Initial mix Water-cement  ratio Cement content [kg/m3] Ratio of LASC and OPC Superplasticizer content Sand ratio 0.31~0.35 450~500 1:3 1.2%~2.0% 0.35~0.45 Note: the content of sodium sulfate is 1.0%. 2.3 Orthogonal Experiment 2.3.1 The Objects of Orthogonal Experiment The orthogonal experimental method is used to figure out the influence degree of the chosen factors on experiment indicators by showing how these factors affect the variance of the result [6]. 2.3.2 Determination of the Most Sensitive Factors and Relevant Levels After a range of preliminary experiments conducted and two fixed values determined, four sensitive factors were selected, i.e. water-cement ratio (factor A), cement content (factor B), sand ratio (factor C) and superplasticizer content (factor D).
It shows which factor is more influential to affect the indicators by calculating the sum of absolute difference K, the average difference k as well as the variance R of each factor under different levels.
Fig.1 Relationship between slump and factors Fig.2 Relationship between 10h strength and factors 3) The optimal combination is A1B1C1D1.

The study opens new perspectives for controlling particle agglomeration and dispersing based on temperature, concentration, and the physical properties of the medium.
It was found that adhesion significantly depends on the surface properties of the particles and the medium's parameters.
This process is critical in numerous scientific, industrial, and technological applications, as it ensures uniform properties and functionality of the resultant materials or mixtures.
It should be noted that this effect is smoothed out at high particle concentration, which is justified by several physical and chemical factors that affect the behavior of particles in such systems.
Huliieva, Prediction of the structural properties of powder materials by 3D modeling methods.

The magnetic field distribution in the polishing zone has a strong effect on the pressure distribution in MAF which controls finishing properties, [4].
From the ANOVA, the significant factors affecting change in surface roughness and material removal were recognized as weight percentage of abrasive particles, size ratio, working gap and lubricant volume.
A required set up was designed and manufactured to investigate the effect of different factors on MAF process of plane surfaces. 2.
After analysis of the response surface method, factors that significantly affected the change in surface roughness and material removal include the weight percent of abrasive particles, working gap, lubricant volume and size ratio.
The response surface method has been used to analyze the influence of various factors on MAF of plane surfaces, and also to obtain optimum parameter levels that give better surface finish and the higher material removal.

Introduction The mechanical properties shown by large compressor rotor assembly structure in operation have an impact on the stability and the unbalance response of the whole rotor system greatly.
Taking the negative factors above and the geometry characteristics of the impeller into account, the 1 / 21 sector model of the assembly structure of the impeller is to be adopted to do the related nonlinear contact analysis.
When the uneven stress and material defects of the shaft are superposed, that is the main affecting factor of spindle bending.
Liu: Mechanical Science and Technology, Vol. 1 (2004), pp.15
Wu: Journal of Mechanical Strength, Vol. 28 (2006), pp.282

Rajagopal3 c 1Research Scholar, Dept. of Mechanical Engineering, JNTUH, Hyderabad, A.P, India. 2Dept. of Mechanical Engineering, Sri Sai Ram Institute of Technology, Chennai, India. 3Department of Mechanical Engineering, JNTUH, Hyderabad, A.P, India aseenusreeja@gmail.com, bpalanikumar_k@yahoo.com, c rajagopalmail@yahoo.com Keywords: drilling, Delamination, Thrust Force, Glass fiber, Polycarbonate matrix, Scanning Electron Microscope Abstract.
An assembly, the quality of the drilled holes highly affects the joint of two or more structural components.
In the last few decades, glass fiber reinforced plastics are used widely in primary structures due to their good properties.
Palanikumar and Valarmathi [2] have concluded that the feed rate and drill diameter are the highly important key factors followed by the spindle speed on delamination.
Fig. 4 Interaction Effect between the parameters spindle speed and feed rate on delamination factor Fig.6 Effect of spindle speed and Drill Diameter on Delamination Factor Fig.6 Effect of Spindle Speed and Feed rate on Delamination Factor Diameter on Delamination Factor Fig.5 Effect of spindle speed and Feed rate on Delamination Factor Fig.7 Effect of Feed rate and Drill Diameter on Delamination Factor The interaction influence between the cutting parameters like spindle speed and feed rate is shows in Fig.4.

Physical Simulation on Microstructure and Properties for Weld HAZ of X100 Pipeline Steel Yu Liua, Liuqing Yangb, Bin Fengc, Shiwu Baid and Changxue Xue Pipeline Research Institute of CNPC, Langfang, 065000, P.
China aly_liuyu@126.com, byanglq99@yahoo.com.cn , cfengb58@126.com, dbsw845@163.com, excx939@163.com Keywords: X100 pipeline steel, Physical simulation, SH-CCT, Microstructure and Properties Abstract.
In this paper, the simulation heat affected zone (HAZ) continuous cooling transformation (SH-CCT) diagram of X100 pipeline steel was drew by using Gleeble 3500-HS thermal/mechanics simulation test machine, and the microstructure and properties of the HAZ of single-pass/double-pass welding were simulated and studied.
In this paper, the continuous cooling transformation rules of the weld HAZ for X100 pipeline steel was researched by thermal simulation method, the microstructure and properties of weld HAZ of single-pass and double-pass welding were simulated and analyzed, the effects of different welding thermal cycle parameters on the microstructure and properties of weld HAZ were investigated, and the control measures to optimize microstructure and properties of weld HAZ of X100 pipeline steel were proposed, which provided a technical basis for the welding process of X100 pipeline steel. 2 Experimental method A typical X100 line pipe is chosen as experimental material whose outer diameter is 1016mm and wall thickness is 14.7mm.
Its chemical composition is listed in Table 1 and the mechanical properties are shown in Table 2.

The failure causes include various factors, the same fault symptom, often cause by many different reasons, and the same kind of reason, often can cause different faults.
In normal conditions, it can cause the rolling bearing different forms of damage, ultimately cause the functional deterioration if the machines are overloaded, lubrication is poor or other factors.
In normal state, the bearing rotation will produce a normal vibration that relate to the elastic properties of the bearing.
When bearing produce abnormal vibration, the reason most possibly is rolling bearing surface in poor condition and other factors.
Wavelet analysis [9,10] can analyze the time domain and frequency domain properties of the signal at the same time, so, it can use wavelet analysis technique to complete the transformation of collected signal.

Basically FGMs can be assumed as inhomogeneous composites with smooth and continuous variable properties.
First, we assume that the FGM beam is divided to many sub-layers and in each layer, mechanical properties are assumed to be constant.
Stress intensity factor (SIF).
For an isotropic material, SIFs under the above loading and geometry can be written as (5) Where are correction factors that can be found Tada’s handbook [8] for different geometry and loading.
The mechanical properties of the FGM beam in this paper are as follows.

Yu School of Mechanical Engineering, Tianjin University, Tianjin, 300072, China Keywords: Molecular dynamics, Nanometric grinding, Crystal anisotropy Abstract.
In modern manufacturing, the quality and property of the product both depend on the precision engineering which is the key factor of advanced processing technology.
The precision of the nanometric manufacturing is affected by many factors such as the precision of the machine tool, the quality of the diamond tool, the properties of the work materials and so on.
Because the first two factors play an important role in acquiring high quality machined surfaces, people have paid more attention to the development of the ultraprecision machine tools and diamond tools.
Because many single crystal materials are anisotropic in their physical and mechanical properties, it is valuable to investigate their behavior in nanometric manufacturing such as cutting force, the mechanism of chip formation, and the integrity of the machined surfaces as well.