Search results

Interfacial reaction during wetting and spreading of Sn-Ag-Cu solder on Ni substrate is a key factor in order to improve the mechanical properties of the joints and the weld quality.
In the process of the lead-free solders welding, the interaction between the solder alloy and the substrate is an important factor to affect the joint mechanical properties and welding quality.
In addition, the intermediate phase will continue to grow after welding, and these microstructural changes will seriously affect the reliability of the solder joints [4].
CALPHAD (Computer Coupling of Phase Diagrams and Thermochemistry) method is often used to analyze the solder alloy properties and interface reaction product [8, 9].
According to the Kissinger equation, the reaction activation energy Ea, reaction order, the pre-exponential factor and reaction characteristics factors could be calculated.

This study investigates the laser surface hardening (LSH) process as a method to enhance surface properties, emphasizing the influence of varying laser power levels on microstructural and mechanical outcomes.
The demand for AHSS grade 980 is primarily driven by their exceptional mechanical properties, including high yield strength and tensile strength.
Martensite contributes significantly to its mechanical properties, including superior strength and hardness.
Heat accumulation could be another factor affecting the depth and width of MZ and HZ.
[9] Aqida, S.N., et al., Thermal fatigue properties of laser treated steels.

Introduction During the launching and arresting of the shipborne aircraft, all the mechanical systems and equipments will bear the longitudinal and vertical over loading.
Of all the factors, the most important factors include pressure, pulsation and temperature of the oil in the pipelines.
As a result, the accessories can be affected.
Effect of the Flight State on the Performance Parameters of the Hydraulic System The flight state can affect not only the pressure and pulsation in the pipeline but also the working properties.
Therefore, the two conditions are the important factors which must be considered.

Factors such as the deflection of tool body, abrasion wear on tool edges, and unstable vibrations caused by tip breakage all affect the results of micromachining.
This model accounts for the parameters of the helix angle, geometrical dimensions, cross-sectional properties, rotation speed, boundary conditions, axial load, rotary inertia and shear deflection.
(1) The drill feed rate is the most significant factor affecting the quality in hole diameter, followed by the peck-drilling return distance.
Others factors contribute little.
Among these four factors, the depth of the centering drill is the most significant one.

Some theoretical models to characterize mechanical properties are also reviewed.
Surface morphology including deposition, etching or mere roughening is the most frequently studied property as a factor affecting secondary stability [17-22].
The surface chemistry is also thought to affect the secondary stability independently of the surface topography, although it is difficult to separate the effects of these two factors.
Modeling of mechanical properties Hard and soft biological tissues are remarkable materials when regarding their ability to adapt the whole scale of external conditions by rapid changes of their physical properties.
The main method of characterizing mechanical properties of living tissues may be defined as follows.

Concrete autogenous shrinkage phenomenon would adversely affect the mechanical properties and durability of concrete, this phenomenon is important.
Impact Factors of Autogenous Shrinkage Autogenous shrinkage of concrete is impacted by cement mineral components and the degree of hydration.
Curing conditions will also affect the Autogenous shrinkage, such as curing temperature, humidity, etc..
Further study of factors autogenous shrinkage of high performance concrete results, as well as multi-factor interactions.
Autogenous shrinkage deformation properties such as creep, creep combine research, volume stability analysis of the concrete structure in the actual project.

Gao [4] et al. found that prepared small cell size and uniform foaming materials can improve the mechanical properties of foaming material, the impact property of the material is increased, but the tensile strength is not increased much.
Jian [8] et al. study on mechanical properties of twice foaming polypropylene with SGF enhanced POE.
Mechanical Properties Tensile strengths were determined according to the Chinese Standards GB/T1040.1-2006 on a tensile test machine Instron8510.
perform better comprehensive mechanical properties.
Spherulite size is also an important factor which affects the strength and toughness of the polymer.

For the objective evaluation of fabrics there are diverse ways in knitted fabrics, and the subjective evaluation of the fabrics involves not only basic mechanical properties, but also heat properties [4].
Surface properties.
The surface property is one of the important factors of hand feel which affect the touch warm-cool feeling.
The objective and subjective of warm-cool feeling In order to find the factors which affect the warm-cool feeling directly, we used the correlation analysis among the water absorption rate (WAR.), air permeability (AP.), moisture penetrability (MP.), surface properties, objective measurement and subjective evaluation.
The two evaluation ways get the different influence factors.

Factors Influencing the Mixing Process of Electrode.
Slurry in the actual production, the factors influencing the mixing process of electrode slurry are very much and complex.
This shows that the factors affecting the electrode slurry mixing process are fairly much and complex.
Time variability exists among these factors in varying degrees.
Fuzzy Control in the Electrode slurry Mixing System As the factors which affect the slurry viscosity and homogeneity are complex, it is difficult to determine the optimum mixing conditions, such as the best mixing time and the best paddle speed, in the electrode slurry mixing process.

Heat treatment is one of the major process adopted to improve microstructural and mechanical properties of high carbon steels.
Heat treatment along with mechanical treatment significantly affects the metallographic and mechanical properties [3, 4].
Controllable factors with their levels are shown in Table 2.
The effect of tempering on the microstructure and mechanical properties of a novel 0.4C press-hardening steel.
Microstructure and mechanical properties of a ultra-high carbon steel.