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The heterogeneity of microstructure and mechanical performance of welding joints were affected by unique material properties such as high resistivity and low thermal conductivity, instantaneous high temperature of spot welding thermal cycle, and uneven local cooling rate.
Tab.1 Chemical composition of BR1500HS C Si Mn Cr Ti B S P Fe 0.21 0.28 1.35 0.23 0.023 0.0033 0.012 0.0055 others There were interaction effects of welding current, power-on time and electrode pressure, on welding joint for hot stamping high-strength steel [7], in this paper, orthogonal experiment was designed by selecting the three main factors as experimental factors, taking 4 levels of each factor, and the factors and levels was shown in Tab.2.
Tab.2 Distribution of factors and levels NO.
Welding current/kA （Factor A） Welding time/ms （Factor B） Electrode pressure /kN （Factor C） 1 6 300 2.5 2 7 400 3.5 3 8 500 4.5 4 9 600 5.5 The experimental results The orthogonal table L16(45) was chosen, a total of 16 experiments were done, each experiment was repeated three times, each shear load was obtained by testing each welding piece and the mean value was taken, the experimental performance indicator was chosen as joint bearing property, the peak tensile shear load was chosen as the characteristic.
The weld joint consists of three parts: base metal, heat affected zone and fusion zone.

Effects of white-rot fungus BYBF treatment on properties of papermaking wastewater were investigated.
Adding activated carbon into immobilized beads can increase beads’ mechanical strength property.
Calcium was the most commonly used to change the SA solution and gel properties of the fluid nature of the ion, and calcium alginate (CA) gel had excellent forming ability, resistance to freezing and drying.
On the other hand, the appropriate increase in fixed carbon content could increase the ball mechanical properties and microbial biomass and reduced treating time.
PVA -calcium alginate’ preparation of factors[J] Chemical propellant and polymer materials, 2004,2 (04)：36 [5]Long Z E, Huang Y H.

Generally, it is associated with many factors of welds [6-9].
The mechanical properties of the used steel are: tensile strength 915.73MPa, yield strength 585.8MPa, fatigue strength 560MPa and total elongation 17.5%.
The interplay of mechanical properties and microstructures at HAZ explains the low fatigue strength in the weld after RSW.
Norman Zhou, ‘Metallurgical and Mechanical Properties of Fusion Zones of TRIP Steels in Laser Welding’, ISIJ International, 2008, 48, 483-488
Bhole, ‘Challenges and developments in pipeline weldability and mechanical properties’, Science and Technology of Welding and Joining, 2013, 18, 169-181.

More importantly, experimental results indicated that three regenerated cellulose samples had different microstructure and superstructure, which greatly affects the properties of regenerated cellulose.
The investigation of effects of humidity on the dynamic properties of three cellulose at middle temperature.
The investigation of effects of humidity on the dynamic properties of three cellulose at higher temperature.
More importantly, experimental results indicated that three regenerated cellulose samples had different microstructure and superstructure, which greatly affects the properties of regenerated cellulose.
Influence of water on structure and mechanical properties of regenerated cellulose studied by an organized combination of infrared spectra, X-ray diffraction, and dynamic viscoelastic data measured as functions of temperature and humidity.

Introduction Recently the low-carbon bainite steel has obtained widespread concern and application as its super mechanical properties[1-4].
Generally, the bainite is obtained in the process of controlled rolling and controlled cooling or thermal treatment, in which it can generate more innerstress which could affect bainitic transformation and the microstructure and mechanical properties of bainit steel.
Applied stress accelerates atom diffusion[12],possibly makes carbon atoms redistrib-ute and clusteris at grain boundaries and other areas of defect, even induces the precipitation of carbide, and might reduce interfacial energy[9-10].All of the factors can make baintic transformation occur at lower temperature.
In general,during the cooling process after thermomechanical treatment, the inner stress including thermal stress and transformation stress becomes greater with increasing cooling rate, which must affect phase transformation and which also affect mechanical properties after phase transformation, thus it is unignorable for inner stress to affect the structure and performance of steel during fast cooling or thermal treatment after rolling. 3 Conclusions (1) The applied compressive stress increases the starting temperature of bainitic transformation, decreases the finishing temperature
Materials For Mechanical Engineering Vol. 27, (2003)6, pp. 4-7

Factors such as neutron irradiation, corrosive environment, and temperature gradient – all of these aspects tend to lower the service life of the main structural components of the reactor such as core, its containment, main service lanes, etc.
Current paper reports the change in the microstructure and mechanical properties of the stainless steel witness samples of IVG.1M reactor that had been irradiated by neutron fluence for about 40 years.
Moreover, properties of the metal indicate good correlation and do not deviate much for this specific type of steel.
Moreover, the mechanical properties correlate well with the values presented in the literature for this specific type of steel.
Microstructure and mechanical properties of austenitic stainless steel 12X18H9T after neutron irradiation in the pressure vessel of BR-10 fast reactor at very low dose rates. – Journal of Nuclear Materials, vol. 359, 2006, p. 41-49

Incorrectly performed details may considerably affect the properties of the whole structure both in terms of thermal technical engineering and mechanical stability.
Incorrect implementation of the details may cause not only the deterioration of the thermal properties of the object but can also affect the stability of the entire building.
All these factors contribute to the fact that moisture in the house increases and this leads to penetration of water vapor through the wall from the environment with a higher partial pressure to the environment with lower partial pressure [2].
The arrangement and location of sensors allow the evaluation of the thermal insulation properties in detail of the building (Fig. 4).
[4] Jiri Teslik et al., 2013, Advanced Materials Research, Volumes 860-863, Airtightness and acoustic properties of family house from straw,1215-1218, 2013

The seat structure consists of steel rectangular tubes and sheets material, which have the mechanical properties as (Elastic modulus/ Yield stress/ Poisson’s ratio) 195 GPa/ 470 MPa/ 0.26 and 133 GPa/ 390 MPa/ 0.26, respectively.
There were affected to stress concentration reduction of structure and increase of safety factor.
The material properties diversification yielded the changeless of maximum stress but safety factor was increased to 3.48.
So the thickness and material properties were considered as important factors to design the seat structure.
The 2k factorial design of experiment results showed that the thickness increment influenced to the maximum stress and the factor of safety was dominated by the material properties diversification.

Introduction Classical surface roughness parameters obtained on atomic force microscopy (AFM) images are frequently used as a typical measure of mechanical surface properties in every application field where the surface structure is known to affect the observed or utilized phenomena.
Their dependence on the image properties (e.g. density of scan points [2] or background correction [3]) is also discussed.
The localization factor was introduced in our previous work as a parameter to quantitatively characterize surface structures [4].
Hence the application of this novel parameter for the quantitative characterization of surfaces could be beneficial in all of the areas dealing with mechanical surface properties as covered by material science.
Figure 5 presents the localization factor values obtained on the images.

Magnitudes of these fluctuations are directly connected to the ideality factor and temperature, so monitoring of the n(T) dependence could indicate the changes (degradation) in not only electrical but also in optical properties of the photodiodes. 1.
Furthermore, the area of application of photodetectors is very wide, so the investigation of the temperature induced variations affecting their performance is very important from the environmental protection point of view, also.
Main parameter that could be extracted from I-V data is the ideality factor (n), a direct indicator of the output parameter dependence on the electrical transport properties of the junction [2-5].
In this way, determination of the n(T) dependence could indicate the changes (degradation) not only in electrical but in optical properties of the photodiodes as well.
Also, voltage dependent fundamental properties such as saturation current and shunt and series resistance, could be the cause of the n(V) dependence.