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However, multiple PWHT procedures tend to degrade the mechanical properties of steel and design standards have set limits on the length of time PWHT can be carried out before steel should be replaced.
To date, this has been best applied by the aerospace and nuclear industries [2], where the techniques of fracture mechanics have been used to enable safe design using low empirical safety factors.
The properties observed are the tensile properties, the impact transition temperature as determined using Charpy impact specimens and the reference temperature as determined by ASTM E1921.
Table 1 Minimum tensile properties for ASTM A106/B.
Table 3 Tensile properties of the four conditions.

Then, the material and basic properties of the hot disc have been defined to assure a normal operation free from failures.
They seriously affect the structural integrity of a gas turbine.
Properties of Inconel 713LC superalloy used in the computational simulations as a function of temperature.
Basic properties of Inconel 713LC superalloy used in the computational simulations at room temperature. 3.2.
Properties of 713lc compacts, hot isostatically pressed at supersolidus temperatures.

Advanced simulation methods are required since the simplified analytical approach widely presented in the literature does not provide enough detailed first-principle insight to perform optimization of the geometrical properties of a valve system.
This section provides an introduction to the theory and triggering factors of aeration and cavitation in shock absorbers based on Dixon [7] and the analytical work conducted by the authors [9] and supported with experimental studies [8].
A hydro-mechanical valve system model usable from an engineering application perspective should be able to reproduce essential properties of a valve system during operation in a shock absorber.
The most import process affecting the quality of simulation is the preparation of the mesh.
Moreover, a high-damping lag [9] can influence the vehicle ride/handling properties including safety risk.

In addition to the gyroscopic effects, various factors affecting the spindle dynamics during cutting are studied by the researchers [11-12].
Thermal expansions may also cause variations in the contact conditions, and thus affect dynamic properties of the bearings.
Table 2: Front and rear bearing properties.
Obtained bearing properties are given in Table 3.
Table 3: Front and rear bearing properties.

These results strongly confirm the anisotropy of the MT mechanical properties.
Introduction Microtubules (MTs) are supra-molecular structures that in combination with actin and intermediate filaments make up the cell cytoskeleton and strongly affect the cell mechanical properties.
ENM-based NMA has been used also for investigations of mechanical properties of proteins [7, 8].
The mechanical properties of MTs with length ranging from 80 to 180 nm were obtained by combining data from MD and NMA.
Mechanical properties as obtained by the 1 st bending and 1 st stretching modes and mode for different MT lengths.

The water bath treated membrane could store for months with its properties stable. 3.2.2 The impacts of the concentration on the properties of the PMIAFM （a） （b） Fig. 4 (a) The impacts of the concentration of the PMIA on the air permeability and the bursting strength of the PMIAFM; (b)the load-displacement curve of the PMIAFM (a) prepared.
The air permeability directly affects the flow resistance of the filter materials.
When the applied voltage was as low as 18kV, the film got the largest tensile strength 109.24MPa,. 4 Conclusions In all of the factors that affect the morphology, the mechanical properties of the PMIAFM, the concentration of PMIA, and the applied voltage have great impact: within the concentration range spinnable, the lower concentration means the finer fiber; the applied voltage beyond the appropriate range would cause the instability of the jet, and 15-25kV is suitable.
Research on dynamic mechanical properties of poly (m-phenyleneisophthalamide) paper [J].
Study on the properties of China’s meta-aramid paper honeycomb [J].

The properties that affect the resistance to thermal stress are the elastic modulus, the volumetric expansion coefficient, the Poisson's ratio and, in some cases, the thermal conductivity, thermal diffusivity and emissivity of the material [2].
The range of variation of the thermal insulation properties ρ, k, cp and ε were determined from a review of various materials used as thermal insulation in the literature.
Table 3 lists the significance levels of the factors on the response variables, the factors considered statistically significant are indicated with values in bold and underlined.
Thus, it becomes possible to predict the behavior of the response variable by knowing the thickness and thermophysical properties of thermal insulation
Kingery, Factors affecting thermal stress resistance of ceramic materials, J.

And one of the most important factors influencing the performance is working pressure.
Thus it is necessary and imperative to figure out the relationship among the factors influencing depositing process.
And the most important among these factors are pressure, velocity, and temperature.
As the gauges has been given, there is another important constant factor would influence the measurement results: the installation site of the sensors could affect the accuracy of the measurement value.
Vol. 01 (2007), p.43-46 [4] LI Shi-Bin, Effect of Substrate Temperature on the Optical Properties of a-Si:H Films by RF-PECVD.

The specific structure of these CPC, with high surface area and reactivity of nano-crystals, is ideal for in vivo remodeling of new bone and controlled release of protein and growth factors.
The high shear and powerful impact produces an array of calcium phosphate cements (CPC) with different physico-chemical and mechanical properties.
Results The material properties changed most significantly in the first two hours of milling and changed more gradually after that, approaching steady state by 24-h.
Thus, milling altered the initial but not final properties of the CPC.
The existence of the reactive non-apatitic environment prepares the CPC to be biocompatible, highly bioactive, resorbable, and to associate with proteins and bioactive organic molecules such as growth factors.

In this paper, influence of processing parameters and powder properties on final sintered component properties are discussed.
For effective press and sintering of metal powders in commercial scale there are a number of factors that need to be considered.
To start with, flow properties of the powder are important.
Physical properties are presented in Table 1.
Physical properties of the powder.