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The main mechanism of anti friction and friction reduction is that the composite powder will form a repair film on the surface of the friction pair during the friction process, and the repair layer can reduce the friction, compensate for the wear and play the role of resisting wear and reducing the effect of friction.
After the friction and wear test was completed, the sample was analyzed with JSM-6490LV SEM, and the surface composition was analyzed with EDX, so as to analyze the mechanism of the tribological performance change. 2 Results and Discussion 2.1 Analysis of Wear Resistance 2.1.1 Test Results and Data Analysis of Wear Measurement Tables 2 and Figure 1 show the wear loss of nanometer MMT/In additives in 45 # steel pairs with low friction in MMT: In ratio of 3:7.
From the above data, it can be concluded that the addition of MMT/In nanocomposites can improve the wear resistance of friction specimens to a certain extent. 2.1.2 Analysis of Anti Wear Mechanism Figures 2 and Table 3 respectively are the optical photographs of the surface of the friction specimens after 20h test and the SEM photographs after 40h.
The total amount of the special elements on the surface of MMI-4 sample decreased to 0.49%, because the wear process was faster than that of the repair process due to the addition of too many hard particles. 2.2 Analysis of Antifriction Performance 2.2.1 Test Results and Data Analysis of Friction Factor The friction coefficient of the friction specimens varies with time as shown in Figures 5 and Table 4.
The 3% added nano MMT/In composite powders have better friction reduction and wear resistance in the friction pairs of 45# steel in the lubricating system.

Das et al. [17] used the data in Shida et al. [18] to propose polynomial relationships for various materials to accurately relate the yield strength and the material temperature.
A correlation relation for the carbon steel is given, based in these data as follows [17]: (2) Thus, the target material hardness can be related to the operating temperature as: (3) The specific heat of the target material is also influenced by the temperature rise.
They used a nonlinear fitting formulae for the experimental data and assumed constant Poisson ratio in a temperature range from 273 – 673[K].
A curve fitting was used to fit the available data [26] for the density and viscosity change to account for their variation with the temperature rise in [K].
It should be noted that the effect of temperature is only apparent in the reduction of the target material hardness.

Damage was defined as a reduction in stiffness and introduced by replacing the columns with elements having 6 6× mm cross section.
In the study, damage of the model structure was defined as a reduction in stiffness and introduced by replacing the original columns with elements having smaller cross section.
System PULSE was applied for the measuring and data acquisition purposes (see Fig. 1b).

Features of grain boundary character distributions in a austenitic stainless steel after cold rolling with low strain followed by single and two-step annealing Fang Xiaoying, Guo Hong, Wang Weiguo School of Mechanical Engineering, Shandong University of Technology, Zibo 255049, P R China Keywords: grain boundary engineering; S3n boundaries; austenitic stainless steel; EBSD Abstract: The grain boundary character distributions (GBCDs) of two 304-type austenitic stainless steel samples, which are cold rolled with the same thickness reduction of 6% and then subjected to different annealing treatments are examined by Electron back-scatter diffraction (EBSD) techniques.
Two samples, which had previously been solid solution treated at 1323K for 0.5h and cold rolled with the thickness reduction of 6%, are subjected to single and two-step annealing treatment, respectively.
The data are plotted in stereographic projection along [001].

Fused quartz ceramic materials were fabricated in reduction atmosphere at various temperatures for 1h.
It is reported that reduction atmosphere and conventional oxides and non-oxides and nano-oxides, rare earth oxides has better effect on inhibiting crystallization and promoting sintering of fused quartz ceramic [5-7].
For thermal expansion ratio, specimen heated to 1200˚C at 10˚C /min is cooled in furnace to room temperature, and the experimental data are collected, recorded and analyzed by the device.

It is a qualitative and quantitative method and can realize the transformation between conception and data.
In the light of above consideration, function analysis method is used in establishing air base damage evaluation index and function reduction degree is used to describe the damage level.
Damage level judgment Battle damage is described by target damage level and physical damage evaluation is the most popular evaluation method for deciding damage level on basis of damage judgment used in traditional damage analysis, in which damage probability and vulnerability acreage were used to calculate target unit physical damage and target damage level was used to describe operation effectiveness reduction.
Based on above consideration, system functional reduction degree is used to describe air base damage level, which is partitioned into seven levels, these are no damage, slight damage, mild damage, moderate damage, weighty damage, serious damage and destroy.
Battle damage level of air base can be achieved using a kind of evaluation method according to its function reduction based on the damage level classification,.

Our aim was to find ways of cost reduction of age hardening, as economic factors are also very important for an engineer besides technical parameters and feasibility.
The aim was to find out whether the stress limits required by the buyer could be met despite the reduction of heat treatment time. [3] Table 1: The plan of the heat treatment The parameters of age hardening were defined in accordance with this aim (the temperatures were not changed).
(Figure 5) Figure 5: The effect of the alloying elements  on the lattice parameter [2] If the Cu, Mn or Si content of the alloy is solved it causes reduction in the lattice parameters.
When analysing the data we examined the changes in hardness and tensility values together with the lattice parameters and half value width.
Consequently, it would mean reduction in the costs for the company.

However, this reduction was accompanied by the rise of particulate matter emission due to the low oxygen concentration.
This work also found that the increase of concentration of LPM in the fuel resulted the higher reduction of smoke emission.
The data of diesel engine fueled by the fuel blends are compared to those of the diesel engine fueled by the neat diesel.
The mixture of LPM or HPM into fuel blends in the cases without EGR and EGR rate of 16.5% results the maximum reduction of engine brake power of 12% compared to that of the diesel engine fueled by the neat diesel at the high loads as denoted in Figure 2.
Consequently, the mixing time between the fuel and air increases resulting the reduction of combustion rate when the diffusion combustion is started.

The detailed data is as follows: When T=600℃, the discharge capacity is 8.1mAhg-1; when T=700℃, the discharge capacity is 26.9mAg-1; when T=800℃, the discharge capacity is 47.5mAg-1; when T=900℃, the discharge capacity is 48.4mAg-1; when T=1000℃, the discharge capacity is 49.8mAg-1; when T=1100℃, the discharge capacity is 59.4mAg-1.
There are two reduction peaks and one oxidation peak in figure 10.
Two reduction peaks appear at 2.06V and 2.42V respectively; the nitro reduction peak appears at 2.06V, another reduction peak is related with Li-ion dedoping.

Metal clusters exhibit novel electronic, optical and chemical properties owing to quantum size effect which results from dramatic reduction of the number of free electrons [1].
Silver tetramers were produced efficiently by γ-irradiation of hydrated Ag-ZK-4 zeolites [7] and by hydrogen reduction of dehydrated AgNaCs-rho zeolites [8].
Thus, potentially silver sodalites could be used as a novel material for reversible storage of optical data. [9].
Silver clusters in zeolites were mainly produced by hydrogen or radiolytic reduction.
The EPR results univocally indicate that in zeolite rho the silver agglomeration process, initiated by gamma reduction of Ag + cations, requires the mobility of silver species - atoms at low temperatures and cations above 270 K.