Search results

It is generally believed that carbon content is an important factor affecting the high-temperature mechanical properties of the material[4-5].
If carbon content is too low, the material mechanical properties will be greatly reduced.
Therefore, due to short-term high temperature overheating, the reduction of sample mechanical properties is the main reason for its cracking.
The insufficient of mechanical properties at high temperature is the main reason for the tube burst
Analysis of microstructure and mechanical properties of different high strength carbon steels after hot stamping[J].

The dynamic load of ice, wind and wave were the possibly factors triggering the fatigue damages [1,2].
The fatigue phenomenon was indeed depends on mechanical effect (e.g. crack mechanism) microstructural and environmental factors [5].
It is essential to recognise the fatigue strength of materials in basic condition to gain full understanding of fatigue properties due to its significance in mechanical design.
The mechanical properties and chemical elements are given in Table 1 and 2 respectively.
Boardman, Deere, ASM Handbook, Volume 1: Properties and Selection: Irons, Steels, and High-Performance Alloys, in: ASM International, 1990, pp. 673 - 688

The limited mechanical and biological properties of Ca-P bioceramics should be considered, since Ca-P bioceramics often results in extreme grain coarsening or surface contamination when holding at high temperature, which could degrade the desired mechanical and biological properties [1].
The short sintering duration for the microwave plasma sintering process would be advantageous in suppressing exaggerated grain growth, and thus the Ca-P bioceramics might have better mechanical and biological properties.
The phase composition of plasma-sintered samples is significantly affected by sintering temperature from 1050°C to 1150°C (Fig. 2a and b).
The short time holding at high temperature is one of the main factors for the retention of fine grain size in the final sintered material.
A rapid heating rate is also a critical factor to suppress the surface diffusion that would often cause significant grain growth in convention sintering [8].

The influencing factors and characteristics of each synthesis method are discussed.
The main affect factors in laser ablation were the carrier gas, the surface morphology of target, laser intensity, the pressure in growth chamber, growth time and growth temperature.
The main affect factors in process of synthesis SiNWs by CVD method were environmental pressure, temperature, catalyst and catalyst’s particle characteristics.
The main affect factors in synthesis SiNWs by thermal evaporation were evaporation temperature, environmental pressure, carrier gas and others.
Irradiation time and power were the important factors affect nanowire’s diameter and shape [31].

The ageing coefficients were calculated according to the relationship between the tensile strength and elongation at break changes, resulted as the effect of climatic and UV factors, and related to the same mechanical properties before the ageing processes.
The enhanced mechanical properties of silica-filled-POSS/HNBR composites are likely due to the increased dimensionality of the octafunctional POSS molecules.
A number of studies on POSS nanoparticles successfully incorporated into various polymers with the goal of modifying mechanical or thermal properties have been reported.
Compared to the initial properties of the studied elastomeric composites, placed in Table 2, it is clearly observed that generally both the climatic and UV ageing affect the adverse changes in mechanical properties, revealed as increse of rigidity and reduced elasticity coupled with lower strength of some samples.
The observed improvements in mechanical properties can likely be attributed to the increased dimensionality of the POSS cross-linker.

Tool management database contains the tool number, tool type, manufacturer, rake angle, clearance angle, main edge angle, side edge angle, material, and the material properties such as hardness, tensile strength, material density, and melting point.
The workpiece Management database includes a set of information in workpiece material, workpiece name, type, manufacturer, workpiece dimensional features, and material properties.
Optimization Variable When the workpiece, tool, machine parameters are determined, the main factors affecting the productivity are the cutting speed, feedrate, depth of cut.
It is important to give appropriate weigh factor to each sub-objective problem based on the degree of importance.
(4) Where and are, respectively, the machining time and costs; and are the minimum values of the machining time and costs; and , are the weight factors of the machining time and costs.

Aluminum belongs to metal material that has distinctive mechanical properties in terms of elasticity in receiving tensile loads [1].
However, this material has low mechanical properties such as hardness, liquid limit, and strain. [1].
Aluminum Physical Properties .
In addition to the factors that can affect the electroplating process, some factors can affect the coating results.
In fact, some the factors are affecting the electroplating process.

Four control factors and two responses were used.
Here it is intended to investigate the potential influence that a range of ingredient parameters have on the mechanical properties and thermal performance of EPS lightweight concrete.
The factors and levels to be considered of the concretes are given in Table 1.
Table 1 Factors and factor levels Levels Factors Cement (kg/m3) W / C Volume of EPS (per unit volume of concrete) % Sand ratio % 1 400 0.45 15 35 2 450 0.50 20 38 3 500 0.55 25 41 Experimental procedure.
Fig. 2 Effect of factors on density Fig. 3 Effect of factors on compressive strength Compressive strength vs. density.

However, since the influence factors of shrinkage and creep characteristics are really extensive and complex, so far no theory can fully explain and accurately predict the shrinkage and creep properties of concrete.
Based on comprehensive and thorough study of development mechanism and influencing factors of shrinkage and creep, the author found that the following three factors in ACI 92 model should be corrected.
Correction of influencing factors Slump factor correction.
For the pumping high performance concrete, the water-reducing agent can greatly improve the slump and liquidity of concrete, without affecting water-cement ratio or water content of concrete, and also no significantly impact on other mechanical properties of concrete.
However, factors-such as the amount of cement, water cement ratio, aggregate condition and curing condition-that affect the shrinkage and creep can not be predetermined, while these factors are all associated with concrete strength in different degree.

Commonly, the weld quality is affected by factors such as the intensity of electrical current, electrode force, the materials thicknesses, welding time, electrode type and size [4,7].
The mechanical properties of spot welds as well as the affecting the microstructure of the weld by welding current was investigated in [24,25].
The influence of electrode force on the mechanical properties of spot welds was observed in [26].
The mechanical properties of dual-phase steels strongly depend on their material structure properties.
Ball, Influence of heat treatment on mechanical properties of clinched joints in titanium alloy sheets, Int.