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Duplex Stainless Steel is prone to the 475°C embrittlement, which leads to a change of the material properties.
This results in a change of the material properties such as a change of the cyclic deformation behavior and an increase of the tensile strength [1,2].
After 100 h, the DSS is fully embrittled, meaning that the maximum embrittlement and maximum possible change of material properties due to the 475°C embrittlement is reached [2].
This deviation affects the accuracy of the model parameters used to describe the fatigue behavior.
Lange, Microstructure and properties of Super-Duplex Stainless Steel, Pract.

Although the role of some factors (like GB’s migration or GB’s composition) and the nature of the measured parameters in the different diffusion regimes may be more quantitatively understood now, some questions (like the role of stresses or the value of the diffusion coefficients in non-equilibrium GBs) still remain open problems.
In case of precipitation of a three dimensional phase, it is difficult to separate the respective roles of this new phase and that of the modifications directly induced by the equilibrium segregation on the diffusion as well as on other properties like the stabilisation of nano-structures.
The effect of stresses on GB diffusion as well as other physical properties of materials remains an open problem [40, 41].
The difference between the thermal expansion properties of the substrate and the layer (s) generates the stress state.
There are for example some evidences that mechanical attrition creates GBs with a higher energy than that present in equilibrated high-angle GBs [60].

The resulting experimental data will undergo RSM analysis to formulate mathematical models for predicting WL, CR, and IE across a wide range of influencing factors.
The factors levels is presented in Table 2.
This revealed that the input factors such as immersion time, and extract concentration have a significant effect on the corrosion rate.
Also, the interaction between each response is dependent on the factors as shown from the three-dimensional plots. 3.
Development of regression models to predict and optimize the composition and the mechanical properties of aluminium bronze alloy.

The bearing capacity, strength and wave attenuation performance of the structure are influenced by it’s geometrical dimension regularly, and so will affect the project implementation in a practical way.
Material properties of the structure.
Based on an overall consideration of various factors, it is reasonable to choose the geometric dimension of the structure of α = 65 °, h = 15m, D = 3.4m, t1 = 25mm, t2 = 30mm.
Xie: Analysis of Mechanical Characteristics of Deep Water Drilling Riser [J].

Nickel slag is mainly introduced, and the chemical composition and preparation of nickel slag powder, and study its physical properties, activity, volume stability and mechanical properties.
Komnitsas et al [4] used nickel slag which were crushed to be particle size of about 0.075mm~4mm as cement and concrete admixtures, and analyzed the impact of the new equal factor in the course of the composition of cement bonding material on the strength of cement with the help of XRD, DTG and FTIR.
Quanbing Yang et al studied the properties of slag’s grinding characteristics and activity, and drew a conclusion about nickel slag having a bad grind ability and low activity.
As nickel slag powder could contain f-CaO and f-MgO which would adversely affect the soundness of it, the soundness of nickel slag powder need to be tested.
Conclusion (1) Nickel slag powder has definite potential activity based on the analysis of chemical composition of nickel slag and mechanical property test, which can be used as concrete mineral admixture

Since the longevity of total hip joint prostheses is affected by the wear of their components, one of the main objectives of orthopaedic research is to validate different bearing surfaces with a reduced mechanical wear.
The mechanical properties of different UHMWPE acetabula cups are summarized in Table 1.
Table 1 Chemical and mechanical properties of UHMWPE acetabula with various molecular weights made by different moulding process Molecular weight Consolidation methods Specific density (g/cm3) Hardness (HB) Tensile strength (MPa) Melting point (°C) Water absorption (%) 3,000,000 Thermal extruding 0.935 30 35 136 <0.01 4,500,000 compression moulding 0.935 31 34.6 138 <0.01 6,000,000 compression moulding 0.941 69 29.3 143 <0.01 The precision finishing of consolidated UHMWPE samples is required to obtain the smooth surface and limited clearance between the artificial acetabula cups and femoral head balls.
Therefore, the wear factor is
Among these factors, the particle size and morphology are possibly the most powerful impacts on the biological reaction to biomaterial wear debris.

It then addresses how fatigue load affects the bond between FRP and steel.
The conventional fracture mechanics theory was extended to predict the FRP strengthened steel plates by considering modification to the stress intensity factor and stress range due to FRP [42].
The effect of different parameters such as the prestressing level, steel grades and geometric and mechanical properties of the plate on both the interfacial shear stress and the flexural behavior of the plated beam were discussed.
Their results from both theory and experiments showed that although the geometric and mechanical properties of the FRP plate have influence on the stiffness and the yield load capacity of the plated beam, prestressing does not affect the stiffness of the plated beam but increases the yield load capacity.

The modified 9Cr1Mo steel exhibits better tensile and creep properties than the plain 9Cr1Mo steel with the addition of Vanadium and niobium, as well as most of the Cr-Mo steels from low to high content of Chromium [2].
In above working stress and elevated temperature conditions, the creep deformation and rupture are important in the determination of limiting design factors such as strain histories, damage field evolution and lifetimes [4].
The extent of softening, which is easiest to think of two extremes of behaviour, depends on a number of factors which are now physically understood and reasonably well quantified [10]: (a) Under the condition of high stress and/or low temperature, creep softening of materials is negligible because of a low density of cavitation, cavitation is unconstrained; (b) Under the condition of low stress and/or high temperature, creep softening of materials is high because of a high density of cavitation, cavitation is constrained.
Chabaud-Reytier et al. [13] have made a quantitative study of intergranular damage in heat affected zones materials such as OKR3U and 316 L(N) material, and got the relationship between the cracked boundary length and the total grain boundary length .
Current study of creep cavitation behavior by advanced techniques If the assumption of the main cause of creep failure is the nucleation, growth and coalescence of cavities on the grain boundaries is validity, the advanced techniques by X-ray microtomograhy provide hope of understand the underlying mechanisms of damage and promote the development of new mircro-mechanical models that use the quantified cavitation behavior to predict the creep life of high Cr steels and its weld.

Lei Bin et al, Tongji University, studied the water-cement ratio, cement content, recycled coarse aggregate, mineral admixture, recycled coarse aggregate replacement ratio on properties of recycled concrete carbonation.
The results show that the carbonation of recycled concrete is not only affected by the new mortar, but also by the replacement ratio of recycled coarse aggregates and their own strength.
Hansen and Narud experiment found that with other factors in the same conditions, the anti-pressure intensity of recycled concrete is mainly decided by the water-cement ratio of original concrete and recycled concrete.
Anti-pressure strength is tested in accordance with GB/T 50081-2002 Mechanical Tests on Ordinary Concrete Standards.
Hansen, Henrik Narud, Strength of Recycled Concrete Made From Crushed Concrete Coarse Aggregate, Concrete International, 1983,5(1):p79-83 [3]Li Wenxia, Zhou Qi, Corrosion of Reinforced Concrete Carbonation and Influencing Factors, Gansu Science and Technology, 2008(5):p132-134 [4] Xiao Jianzhuang, Li Jiabin, Sun Zhenping, Hao Xuanming, Study on Compressive Strength of Recycled Aggregate Concrete, Journal of Tongji University (Natural Science) 2004 (12):p1558 -1561

The virtual prototype modeling research of a wind tunnel test platform with member flexibility Lanlei Zhao, Wenjia Chen*, Lijun Shi, Luyang Li and Yanzhong He College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P.R.
The reason why the platform adopts to the combination of serial mechanism and parallel mechanism is that the integration of two configurations can give full play to the complementary relation of the characterization of the structures and properties, so that they can coordinate with each other to meet the requirement of complex motion of the test model.
Due to the existence of elastic vibration of the system, it will inevitably affect the performance quality of rigid body system.
Owing to the testing model has a certain impact and vibration in the simulation movement, so the inhibition of the impact and vibration is an important factor for reliable operation of the simulation test.
Cleghorn: Investigation of axial forces on dynamic properties of a flexible 3-PRR planar parallel manipulator moving with high speed,Robot.