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During the manufacturing process, the assumed mechanical properties may be changed drastically, e.g. through welding or machining, which in turn may cause the component to fail [6].
Apart from these physical factors, the weldability of a combination of dissimilar materials also depends on the welding method utilized.
One should expect different strain values under tensile stress as well as different ductility and hardness values as far as the mechanical and technological properties are concerned.
The decisive factor for the assessment of a potential material in view of its function fulfillment is the degree of matching between the requirements and properties profile.
Since during welding the material is subject to an unwanted heat treatment, changes in the mechanical-technological properties of the parent material cannot be avoided.

The antibacterial properties were tested against E. coli suspensions.
However, the wide different in mechanical and physical properties between copper and stainless steel prevent the copper application as stainless steel substitute widely.
Therefore, the mechanical and physical properties of copper should be improved by some mechanisms, such as alloying.
In this test, the main factor that affects the inhibition zone diameter is ion diffusion ability to agar medium.
One of the main factors for the alloys to reduce the number of bacteria is the contact surface of metal and alloy to bacteria.

With regards to high temperature gradient in weld zone, temperature dependant thermal and mechanical properties have been incorporated in the simulation.
For the plastic strain increment, a rate-independent elastic-plastic constitutive equation is considered with the Von Mises yield criterion, temperature-dependent mechanical properties and linear kinematic hardening rule.
With regards to high temperature gradient in weld zone, thermal and mechanical properties are dependent on temperature history, as table 1 and 2 illustrate.
Based on table 3 and 4, Thermal and mechanical properties of this joint are dependent on temperature history as well.
With regards to the results, among various factors implemented in thermal and mechanical analysis, choosing the number of elements, heat input, yield stress, Yung modulus, plasticity modulus and displacement constraints have an considerable effects on results.

,Chengdu, Sichuan ,611731 , China 2PanGang Group Xichang Steel & Vanadium Co., Ltd., Xichang, Sichuan ,615041, China awangminli00@163.com, bzhiwangzheng@126.com, cxiaolipzh@163.com Keywords: high strength IF steel, coiling temperature, cold reduction ratio, Nb microalloying, microstructure, mechanical properties Abstract: Nb microalloying added phosphorus high strength IF steel was used to study the effect of coiling temperature and cold reduction ratio on the microstructures and mechanical properties.
Mechanical properties test The tensile samples were prepared for 0°, 45°, 90° three different directions from the annealed testing steels according to the standard of GB/T228-2002.
Therefore, to improve the mechanical properties of high strength IF steel, take the control of the coiling temperature is very key.
The cold reduction ratio is also the key affect factor of cold rolling, final performance in the appropriate composition and hot rolling process only guarantee and cold reduction ratio after the best match next rate, can obtain the high r value.
The feedback from the customers illustrate that the mechanical properties, surface qualities and deep draw performances are suitable for the requirement of complicated deformation.

This study aims to address these pore defects by establishing new standards and improving both internal processes and external factors affecting mold heating.
These factors affect the company’s production costs and profitability.
Chaisrichawla and Dangtungee [10] explore the use of recycled materials in rotational molding for septic tanks, focusing on enhancing mechanical properties through various mixing ratios.
From the analysis of the experimental results of the input factors affecting the number of porous defects significant at the 0.05 level.
Revealed that there were significant variables affecting the occurrence of porosity, with the following relationship.

Among the referred drawbacks, Al loss during melting is a critical aspect, as its concentration in TiAl based alloys has a very strong effect in their mechanical properties.
Although a few studies of critical factors affecting the evaporation behaviour of Al during electron beam and induction skull melting of Ti-Al alloys had been carried out, until now no information was released on this subject for the ceramic crucible induction melting process.
Depending on the vacuum pressure and the melting technique Al loss by evaporation in TiAl melts can reach 15wt% [3], which is extremely relevant since the microstructure and mechanical properties of TiAl alloys are very sensitive to the Al content [4].
The microstructure at the surface of the cast samples was not affected by the pouring temperature or the chamber pressure.
Mitao et al., Effects of Microstructure on the Mechanical Properties and fracture of g-based Titanium Aluminides.

In this paper, a new formability testing system introduced developed at the Institute of Materials Sciences and Technology (formerly the Department of Mechanical Technology) at the University of Miskolc.
We can classify the affecting parameters according to several points of view.
The most significant parameters are summarized below: · on of the most important parameter effecting the forming limits is the so-called deformation history, i.e. the strain path; · further significant parameters are the material characteristics: the material quality, the mechanical properties, the anisotropy factor, the hardening exponent and the strain-rate exponent; · the aging phenomena, the rolling process ratio and the effect of the scattering of material parameters, may also have significant effects, · the sheet thickness is a very important issue as in general in formability, · the effect of the workpiece shape and the applied measurement methods, · the test circumstances (i.e. the type of the applied gridding, its size, its accuracy, the measuring mode of the grid shape changing, its accuracy, the friction, the lubrication conditions, the temperature, the effect of the investigation methods, etc.).
DP600, DP800, DP1000 forming limit diagram of high strength steels for t = 1 mm wall thickness By using the determined anisotropy factors from sheet tensile test results, we can determine the expected fracture locations of the star-shaped pieces by modeling, too.
We found from the simulation and experimental results (not detailed completely here), that the change of the anisotropy factors according to the directions has also effect on the fracture sequence of legs.

Its role and its susceptibility to the caries process are important factors to keep up its integrity.
Its development can be linked to both, poor oral hygiene, as well as genetic factors.
Also, they evaluated three sort of food with specific mechanical properties: Peanuts (brittle); Coconut (fragmentable and crumbly) and bun (fibrous).
Mechanical Properties for the numerical analysis.
The mechanical properties reported in the table 1 were considered. 3.2 Experimental Dental Model A photoelastic thin layer was prepared.

Its properties and structures were characterized by the porosity, bulk density, flexural Strength, XRD, SEM and EDS.
The effects of particle grade and sintering temperature on its properties were studied.
SEM and EDS analysis indicated that a larger of wisker like α-Si3N4 and some little β-Si3N4 are found coating with SiC, giving its excellent mechanical properties.
From Table 1, we can see the order of these factors on pack density SiC1> SiC2>SiC3.The pack density the largest is 2.0 g/cm3 when particles grade match of SiC1: SiC2; SiC3 is 40:20:10 (by weight).
factors NO.

The results show that:(1)the adjustment of the slope ratio and platform can significantly affect the slope displacement and plastic zone distribution, reasonable slope ratio and platform can reduce the horizontal displacement and plastic zone of slope, increase the safety factor and stability;(2)the slope monitoring results show that numerical simulation optimization design is feasible, and the excavation slope maintain security and stability during the construction period, and economic benefit has been obtained.
The physical and mechanical property parameters of stratums are shown in Table 1.
Physical and mechanical parameters of corresponding strata are in Table 1, and the cohesion and internal friction angle of structure surface used in the numerical calculation should consider the impact of the joint surface.
Slope ratio refers to the ratio of the slope grading, and slope ratio directly affects the footprint, security and stability of the slope engineering.
The safety factor of programs 1,2 slope are less than 1.0, so the slope will occur sliding failure in the excavation process; slope safety factor of program 3,4,5 are greater than 1.0, and show an increasing relationship but neither of the safety factor reach the current regulatory requirements 1.30, hence slope ratio adjustment should be combined with other support methods to strengthen the slope and ensure project safety. ④When other conditions remain unchanged, the smaller the slope ratio is, the bigger the safety factor of the slope is, and the more stable the slope is.