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The concrete microstructure can affect its macroscopic properties, such as the strength and durability, etc.
And then on mechanical properties of concrete from microcosmic perspective.
And then on mechanical properties of concrete from microcosmic perspective.
In test, much factors such as aggregate is fully considered, making sample from 100mm cube after natural maintenance of 28 days.
Test results and analysis Mechanical properties test results.

Alloy factors affecting hot tearing are also discussed.
There has also been progress on other alloy factors that affect the hot tearing resistance of alloys.
Schematic of the important factors affecting hot tearing.
Hence, there are other factors that affect the hot tear susceptibility of alloys other than freezing range but it is clear that small amounts of low melting point phases are detrimental to the hot tearing resistance of alloys.
Nie, J.F., Zhang, X. and Couper, M.J. (2004) The effect of Ti Content on the Mechanical Properties of an Al7Si0.35Mg Alloy, Materials Forum, 28: 12221228

The material properties of these two Al-Li alloy were compared with traditional alloy 2024; damage tolerance properties was tested and compared with 2024 as well.
Properties of 2198 and 2195 The composition is given in Table I and the mechanical properties in Table II [2-3].
Composition and mechanical properties of these three alloys are shown in Tables I and II.
Stress intensity factors for all specimens were calculated using the expressions recommended in ASTM E647.
[6] Hirsch J, Gottstein G, Skrotzki B：Aluminium alloys their physical and mechanical properties，pub Technology & Engineering (2008)

Therefore, many researchers improved the mechanical properties of magnesium alloys by heat treatment [4-5].
Therefore, it does not want to see that after heat treatment although its mechanical properties were improved but the damping performance was decreased at the same time.
Our previous studies show that adding Sb can obviously improve the microstructure and mechanical properties of ZA84 magnesium alloys.
All of these factors can affect the dislocation damping evidently.
All of these factors will affect the movable dislocation density and the mean loop length, thus affecting the damping properties of the alloys.

The base and brazing materials are C1220-O and BCuP-3S and their material properties are shown in Table 1 and 2, respectively.
Table 1 Mechanical properties of base metal Material Tensile Strength Elongation Melting Point 1220-O 195MPa 35% 1083°C Table 2 Mechanical properties of filler metal Material Solidus Point Liquidius Point Working Temperature BCuP-3S 643°C 720°C 720-815°C Filler metal Brazing gap z ro 7mm 0.05~0.12 mm Brazing Length Filler metal Brazing gap z ro 7mm 0.05~0.12 mm Brazing Length : Flow of N2-gas : Flow of Electric Control N2 Tank Main Controller Piping Specimen Cam Driving : Flow of N2-gas : Flow of Electric Control N2 Tank Main Controller Piping Specimen Cam Driving Fig. 1 Specimen of brazed joints Fig. 2 scheme of the fatigue test apparatus Life Test of Internal Pressure and Excitation.
Consequently, we used the orthogonal array according to DOE(design of experiment) which is the 4 level and the 2 factor, ( )2( 7L ).
Fig. 6 and Fig. 7 show the life distribution by the factors.
Ray: Mechanical Science and Engineering, A, Vol.383, No. 2, (2004), p.235-244 [4] P.

Laser prestressed bending mechanism is described and the main influence factors are analyzed.
The material microstructure and mechanical properties after laser scan are measured and analyzed.
Research on laser prestressed bending of the complex structure of aluminum alloy plate is done and influence factors and material properties change during the bending process are analyzed [8-9].
There are many factors affecting the laser prestressed bending process, shown in Fig.4.
(2) There are many influential factors of laser prestressed bending process.

The behaviors of corrosion in weldment produced by fusion welding are influenced by several factors.
The environment effect also plays a role in affecting corrosion at 2 weldment area.
The study also concern about the mechanical properties of the welded joint before corrosion and after corrosion.
Each of the sample will undergone several test for interpretation of properties.
This shows that corrosion has decreased the properties such as tensile strength and extension or elongation.

The results show that the dry conditions lead to stronger friction effects and thus larger friction factors.
Metal parts may be produced by a metal forming process since its high productivity, high material utilization and good mechanical properties makes the technology suitable for mass production.
Two friction factors for the workpiece-die interface, 0.02 and 0.5, and five friction factors for the workpiece-punch interface, 0.02, 0.1, 0.2, 0.3, 0.4 and 0.5, were tested in simulations.
Table 2 lists the estimated friction factors at different strokes for each lubricating condition.
The dry conditions led to stronger friction effects and thus larger friction factors.

Significant factors have been identified using analysis of variance (ANOVA) test.
Kataria et al. [8] reported that power rating and abrasive grit size are the main significant factors which affect the material removal rate and tool wear rate.
The process generally does not cause any significance alteration in the properties by means of surface damage [13].
There are three factors with two levels and remaining factors have three levels.
Two replicates were run for the full experiment, and all of the trials were completely randomized to entertain the nuisance factors.

The thread rolling process is now widely acknowledged as the fastest and most efficient method of producing accurate external threads, with surface finish and mechanical properties.
In addition, because of the surface hardness and excellent finish, wear characteristics and anti-galling properties are greatly improved [3].
The factors on which the performance of the thread rolling die depends are proper design of the die, accuracy with which the die is made, selection of appropriate tool steel, heat treatment to achieve the optimum hardness and toughness.
Among them is the type of thread to be rolled, its major diameter, pitch and root depth that depends on surface roughness, diameter of blank and also on the ductility and cold-flow properties of the blank material (Fig.5).
Performance of Internal Thread Rolling Head and The Mechanical Properties of Rolled Thread, Proceedings of 6th International Advanced Technologies Symposium, 210-217