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The Al2O3 and calcium aluminate inclusions are the root causes of cracks and can reduce the steel’s mechanical property[3,4] .
The excessive amounts of pearlite could improve hardness and brittleness of the steel, but reduce the toughness sharply, so as to the cold bending properties.
The wdmanstatten structure could reduce the mechanical property of steel, especially the plasticity and impact toughness, and it can also improve the brittle transition temperature which could reduce the cold bending properties of the steel[8].
The rolling temperature and cooling rate are the main factors influencing the rebar structure property.
In this way, the brittleness of steel increased, and the cold bending properties of the steel reduced.

Fig.3 An organ structure at the internal hose Application of TPE rubber materials Through comprehensive consideration of three factors, making the material with plastic and elastic, adapting to industry production and improving environmentalprotection, we have selected TPE rubber, also known as Thermoplastic Elastomer / Thermoplastic Rubber.
In other words, TPE rubber is a kind of plastic with respect to material processing, while at the same time, it is also a kind of rubber with respect to the properties of the material.
The function, making the hose freely telescopic, would be realized by using TPE rubber because TPE, as a plasticity elastomer, possesses excellent tensile properties.
These required properties include good appearance, soft touch, strong tinting, color uniformity, high insulation, non-toxicity, temperature resistance at -60℃ - 70℃, outstanding barrier, good corrosion resistance (such as to water, acid, alkali, and alcohol solvents), anti-ultraviolet radiation and antioxidant properties, and adjustable hardness.
TPE material can directly replace the traditional PE plastic without affecting production standards or the industry production chain.

Introduction SiC is one representative of the wide band gap semiconductors, which already have been used in Si based micromachining technology during processing and as an add on material to achieve an improved processability and increased functionality of MEMS devices due to its mechanical properties and chemical inertness.
Nanoelectromechanical systems provide, compared to MEMS, a range of intriguing properties, such as extremely high resonance frequencies, ultimate mass resolutions down to zeptogram [1] and high quality factors [2].
An improved quality factor in viscose damping media [6] can be expected at the same resonance frequency due to a higher ρSiCdSiC product.
The used growth technique allows the manipulation of the residual stress and inhomogeneous stress distribution [11] and therefore the MEMS properties [9].
The properties of the tempered HSQ are similar to silicon dioxide [12].

Introduction β-Sialons are solid solutions of the varible composition Si6-zAlzOzN8-Z (0properties, as well as mechanical behavior and corrosion resistance, especially at high temperatures. β-Sialons prepared by carbothermal reduction and nitridation of clay minerals had been variously reported [2].
The presence of a substantial amount of glassy phase will adversely affect the high-temperature properties of the materials [3].
Among the factors temperature is the most important factor to affect silicon nitrification rate.

All these cause the microstructure and final mechanical properties of productions are not very qualified, and the quality of production is affected.
(a) roller speed (b) diameter (c) fan delivery Fig. 4 Effects of factors on temperature history of wire rod For the wire rod with a diameter of 13mm, the temperature histories under different entrance roller speeds (0.667m/s, 0.8m/s, 0.9m/s, 1.0m/s) are simulated Fig. 4 (a).
Karimi Taheri, The effect of controlled cooling after hot rolling on the mechanical properties of a commercial high carbon steel wire rod, Materials and Design. 24(2003)415-421

Tensile ductility was affected by the nature of phase and morphology evolution in which dissolved hydrogen played a key role.
Introduction This study falls within the ongoing initiative to improve Ti-6Al-4V mechanical properties by engineering its microstructure.
Notwithstanding acicular morphology, the severe embrittlement in THP-MD is also attributed to other factors pertinent to this argument.
· The combined effect of morphology and phase evolution affects the tensile properties.
Luppo, Microstructure and tensile properties after thermohydrogen processing of Ti-6Al-4V, J.

The metal magnetic memory testing is based on magneto-mechanical effect and expected to solve the problem of evaluating the degree of fatigue damage [8-10].
In this paper, the normal component of magnetic field, Hp(y), is measured during dynamic tension test on the surfaces of ferromagnetic specimens with different stress concentration factors, in order to study the relationship between fatigue damage and magnetic signals, even to evaluate the fatigue initiation life.
It has high tension strength and good integrated mechanical property, which is usually applied in manufacturing critical heavy-duty gear and shaft components, also used for carburized bearing steel.
Many factors, such as heat treatment condition, machining process and transport situation, intensively affect the initial magnetic signal, therefore, all the specimens were inductive demagnetized before experiments in order to study the relationship between loads and magnetic memory signals in initial state [11].
The concentration factor, Kt, of specimen was 5.

Oil and gas pipeline accidents are usually caused by a series of generalized management failure factors.
·Management-Software interface means the management of non-physical factors interface, such as legal regulations, management files and emergency plans.
The important point tents to be the direct cause of the accident or momentous factors affecting pipeline safety.
The factors affecting pipeline safety are summarized and classified comprehensively aiming at finding effective ways to improve the safety of pipeline in essence.
American Society of Mechanical Engineers, (2008), p.437 [2] Stacy, Joan H.

Salim4 1 Faculty of Mechanical Engineering, Universiti Teknologi MARA,Permatang Pauh, Pulau Pinang, Malaysia. 2 School of Mechanical Engineering, Universiti Sains Malaysia Eng.
In addition, the physical properties of palm oil and its blends were studied in accordance with ASTM standards.
Higher viscosity would significantly affect the fuel spray structure due to poor atomization.
The similarity is due to their similar fuel properties.
Lower concentration of such P20 palm oil indicates the properties quite close to that of diesel.

Springback is the key factor for die designers needed to be considered during sheet bending processes.
In present study, V-bend tests were performed to examine the springback property of AZ3 sheet at room temperature and the elevated temperatures.
Its chemical composition and mechanical properties are shown in Table 1.
Table 1 Chemical composition and mechanical property of AZ31B sheet Mainly composition[%] Mechanical property Al Mn Zn Si Be Tensile strength [MPa] Yield shrength [MPa] Elongation [%] Hv [0.5kg] 3.19 0.334 0.81 0.02 0.01 300 220 18 75±5.0 It's well known that any complex bending can be treated as being composed of several v-bendings, so v-bending was selected in the experiments, and the bending line is vertical to the direction of sheet rolling.
Conclusions The springback angle of 0.8mm AZ31B magnesium alloy sheet is affected significantly by the temperature.