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AISI 304L austenitic stainless steel offers the optimum combination of corrosion resistance and mechanical strength.
Surface appearance and color matching of the spot welds of stainless steel are very important factors in determining the weld quality.
The results showed that with using nitrogen gas produces no oxidation appearance on the heat affected zone (HAZ) resulted in an unremarkable color mismatch on the nugget (see Fig.2).
Ilhan, Welding time effect on mechanical properties of automotive sheets in electrical resistance spot welding, Mater.
[10] Karcı, Feramuz, Ramazan Kacar, Süleyman Gündüz, The effect of process parameter on the properties of spot welded cold deformed AISI304 grade austenitic stainless steel, J.

China aHangbl@mesnac.com, bLzy251306996@sina.com, cZyduan88@163.com, dLiufw@ mesnac.com Keywords: tire uniformity testing machine; testing mechanism; mechanical model; data analysis Abstract.
It also shows the good property of YLJ series TUTM combined with the experimental data of a 215/70R15 97H tire repeated test 10 times.
The TUTM is a special device used to measure tire non-uniformities as they affect radial, longitudinal and lateral forces of tires under pressure.
In practical operation, however, the equator of testing tire and load wheel are not in the same plane, which is caused by some uncertain factors occurring in the uniformity testing process.
Therefore, it is usually recognized as an important factor for quality grades of tires.

It cannot be obtained directly as it is a microscopic variable, and it has to be gotten from other measurable material properties related to it [3, 4].
Obviously, the definition of damage variable is short of direct connection with the microscopic physical mechanism, the determination of damage variable has to depend on the measurement of macroscopic mechanical properties.
According to the orthogonal regression analysis [8], only two groups of sample data of the strain concentration factors are needed to generate the two single functions.
The strain concentration factors of notch depth.
The strain concentration factors of notch width.

Generally, the performance of concrete materials is characterized by parameters based on mechanical properties such as strength and elastic modulus.
With these methods, some researchers studied the factors influencing flexural toughness of FRSC [2,3,4,5,6,6,7,8,6].
Loading rate significantly influences strength of concrete, so flexural toughness may be also affected by various loading rates.
Properties of the fibers were given in Table 2.
Table 1 Properties of macro synthetic fiber and steel fiber Fiber No.

Among these materials, calcium phosphate ceramics, such as hydroxyapatite (HA), carbonated hydroxyapatite (cHA) and β-tricalcium phosphate (β-TCP), are the most suitable materials with excellent biological properties.
These synthesized β-TCP powders were not stable in terms of thermal properties whereby they were converted to α-TCP at temperatures above 1125oC.
In a wet precipitation method, there are a number of reaction parameters, such as the composition of precursor materials, stirring speed, stirring duration, calcination temperature and calcination soaking duration that affect the resultant synthesized powder.
Toda, Reaction sintering of β-tricalcium phosphates and their mechanical properties, Journal of the European Ceramic Society, 27, 3215-3220 (2007)
Sorrell, Some important factors in the wet precipitation process of hydroxyapatite, Material and Design, 24, 197-202 (2003)

Because aluminium has many advantages, such as good thermal conducting properties, lighter weight, easy machined and low cost, it has been widely used in the manufacturing of heat-radiating fin.
The distributions of strain show that the space constraints of rolling tools affect the early stages of the fin and determine the fin growth and final geometry.
The metal flowing direction directly affects the results of metal plastic forming.
Xi'an, China Mechanical Engineering. 2005, 16(17): 1550～1552
China Mechanical Engineering, 2003, 14(10): 46-453.

Since this problem involves the material nonlinearity due to the inelastic deformation of specimen, the numerically obtained results depend on the material properties of specimen very much.
Table 1 Basic material properties of mild or tool steel and SUS316.
Density ρ (kg/m3) Young's modulus E (GPa) Poisson's ratio ν Mild or tool steel 7890 208 0.28 SUS316 7980 193 0.3 Table 2 Viscoplastic material properties of mild steel and SUS316.
Here, δσ becomes extremely large near the origin, however, the inelastic properties of materials are mainly investigated in the dynamic material test.
It is concluded that the primary factor for using NCHBM with sufficient measurement accuracy is the fixation of specimen to the stress bars.

The parameter coincidence rate is 90% based on the 10 prepared samples Introduction Because of the Special structure of diamond crystal, it has a series of excellent physical and chemical properties[1].
With a range of unique properties, diamond is used as an excellent semiconductor material.
Too low or too high substrate temperature will cause the atoms of hydrogen and carbon groups to change the role of the substrate, thus affecting the diamond film deposition process[9].
[7] SHARADA T，RAHAMAN M M，NUKAYS Y，et al.Structural and optical properties of diamond and nano-diamond films grown by microwave plasma chemical vapor deposition, J.
Low temperature growth of ult rananocrystalline diamond film and its field emission properties, J.

Mechanical properties of Al-Li alloys have been studied extensively and in general the addition of lithium improves the elastic modulus, the specific stiffness and decrease the density and surface tension of the Al alloys.
This combination of materials creates a new material with improved mechanical properties (e.g. higher strength, stiffness, elastic modulus, low density) [1].
The inhomogeneous nature of MMC that improves their mechanical properties is also responsible for its poor corrosion resistance in aggressive environments such marine environments.
Wettability and reactivity between ceramic and metal determine the quality of the bonding between the constituents and greatly affect the mechanical properties and corrosion behavior [14].
However the addition of lithium improves the mechanical properties of the Al-Li alloys.

Thus, it is evident that the shape of the cross-section was affected by both the speed of the molten metal stream and the collision angle of the molten metal stream against the wheel.
The collision angle of the molten metal stream against the wheel in turn affected the velocity, such that the length of zone A became shorter as the inclination angle of the launder became larger.
When using the pool-less pouring method, the angle between the wheel surface and the melt flow ejected from the hole nozzle is an important factor with regard to obtaining a convex cross-section, and 90° was the optimal angle.
Marcantoni, FROM MOLTEN METAL TO 3.2 mm WIRE FOR MECHANICAL APPLICATIONS, Light Metals 2012 Edited by: Carlos E.
Jabłoński, Effect of Iron Addition to Aluminium on the Structure and Properties of Wires Used for Electrical Purposes, Materials Science Forum, 690(2011)459-462