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So it is necessary to consider the effect of the flame cutting on the static and fatigue properties of Q345.
In this paper, a test about the static characteristics and fatigue properties of Q345 was launched, and the effect of the flame cutting was considered, as the result, the law affected by the flame cutting on the fatigue properties of Q345 was obtained. 1 Introduction Loader boom is a significant load-bearing component for a wheel loader.
Compared to the raw material, the fatigue properties of the material under the heat treatment will change dramatically[4-7].
It is due to that the flame cutting process equals to a special heat treatment, while the heat treatment can change the material microstructure to improve its mechanical properties, which will enhance the fatigue properties controlled by the surface crack initiation mechanism.
It is shown that Q345 material fatigue properties could be changed greatly by the flame cutting process, which will enhance the fatigue limit about 30%; (3) The static and fatigue properties of Q345 material will be effected evidently by the flame cutting process, so it is necessary to take account of this factor in designing and estimating loader boom-life. 5 Acknowledgment The corresponding author of this paper is Xi Lu.

Effect of dynamic loading on mechanical properties of concrete Jiwei Deng 1, 2, a, Changwu Liu 1, 2, b and Jianfeng Liu 1, 2, c 1State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China; 2College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China aminddeng@163.com, bxxssd@263.net, cLjf7908@yahoo.com.cn Key words: Concrete; uniaxial compression test; loading rate; mechanical characteristics Abstract.
In the past, researches were mainly concentrated on the mechanical properties of concrete under high strain rates when concrete structures beard impact loads, such as shells, bombs and explosions, but the study of structures in the course of normal use had not been paid enough attention to [3].
Thus the awareness of the mechanical properties of concrete under dynamic loading, such as the effect of the increase of loading rate on the improvement of strength, is still in controversy.
This is of great significance to realizing the dynamic mechanical properties of concrete and the improvement of the dynamic design of concrete structures as well as the ensuring of structural safety.
Vol. 6 (2011), p. 49-52 [2] Dongming Yan: Experimental and Theoretical Study on the Dynamic Properties of Concrete (Dalian University of Technology Publication, China 2006)

Geothermal is known as renewable energy and a clean energy source but inherent properties make this energy clean.
In this report, the types and factors of corrosion observed in geothermal systems and the conditions of metal and non-metallic materials found in geothermal systems were considered.
Comparison Cladding VS Carbon Steel and CRA Steel Cladding Carbon Steel CRA Steel Service Life Longer Shorter Longer Safety Anti Corrosion + High Mechanical Property High Mechanical Property Anti Corrosion Weight No Additional Corrosion Allowance Needed Additional Corrosion Allowance Needed Heavier, due to lower mechanical property Purchase Welding Wire in Stock Easy to Purchase Difficult to Purchase and Long Delivery Cost Impact If you consider long term cost Low Cost Expensive As shown in Table 3 above reference from a study conducted by Yu et al., the importance of corrosion resistance alloy relative to the carbon steel pipeline was demonstrated in mechanical strength, cost, and other factors (2014).
These are chosen for their corrosion resistance and outstanding mechanical properties.
A correct material selection with suitable mechanical, chemical and corrosion resistance properties is required to assess properly.The data gathered above from similar geothermal energy utilization cases Alloy 625 could help improve plant uptime by reducing corrosion-related problems affecting piping and equipment in contact with geothermal brine.

The Si3N4 coating improves the chemical and mechanical properties; strength, hardness and chemical resistance.
Friction is affected by several factors, such as the relative hardness of the materials in contact, the dynamics of the externally applied load or displacement, the apparent contacting area, the surface topography the microstructure and the environmental conditions (temperature, ambient).
Measured and calculated mechanical properties of LPCVD silicon-nitride and crystalline silicon as reference (calculated values are denoted by *) Fig. 2.
Results 3.1 Mechanical properties of the selected hard coating The measured mechanical properties of the selected silicon-nitride are compared with the relevant calculated values as summarized in Table 1.
Therefore, the properties of c-Si bulk material were also measured and applied as reference.

In this paper the main factors of impacting the quality in cutting the plate between the Shear blade clearance adjustment and control were analyzed, Focused on further analyzing all relevant factors on adjusting the Shear blade clearance , combined with the accumulated process parameters in production of Thick Steel Plate Plant of He Bei Wen Feng Iron and Steel Co., Ltd.
The cut quality problems are caused by many factors, but the most important is the blade clearance adjustment and control.
This model not only applies to blade gap adjustment during cutting carbon steel, but also for high-strength steel and alloy steel shear gap adjustment, at the same time, taking into account the shearing temperature, shear material properties, the cumulative cut area (for the first time model proposed and was introduced, compared with the shear volume of tonnage or accumulation cutting quantity, it is more precisely) and other factors that affect the cutting quality.
And under the disk shear deformation characteristics of metal in the process, full use of the elements affecting the quality of cut, set up a simple Shear blade clearance adjustment model.
The model is basically to meet the production needs of the majority of plate (only 10~30 mm ), but many factors affect the quality of cut, as new product development and increase of the thickness shear, the model remains to be further improved.

The Effects of Cu Content on Microstructure and Mechanical Properties of Thixoformed A319 Aluminium Alloys M.S.
The effect of copper contents on the microstructure and mechanical properties of A319 aluminium alloy in thixoformed conditions was investigated.
Image analysis of the specimens was conducted by using computerized microscopy and Image-J software to calculate the shape factor (SF) and grain size (GS) of the α-Al phase.
CuAl2 was greatly influence the mechanical properties of the alloys.
Ding, Effects of rheocasting and heat treatmet on microstructure and mechanical properties of A356 alloy, Materials Science and Engineering A.

Mechanical and Thermal Properties of Silicon Carbide Composites with Chopped Si-Al-C Fiber Addition Kiyoshi Itatani1,a , Ian J.
The mechanical properties of SiC composites may, therefore, be expected to be enhanced when chopped SA fiber is incorporated into the SiC matrix.
On the basis of such information, the present paper describes the influence of SA fiber addition on the thermal and mechanical properties (e.g., thermal conductivity and fracture toughness) of SiC composites with chopped SA fiber addition; the effect of fiber orientation on the mechanical properties was also examined in this research.
Mechanical properties of SiC composites with SA fiber addition.
Thermal properties of SiC composites with SA fiber addition.

Moreover, the structure and tensile mechanical properties were measured on the wrapped yarns.
The schematic diagram and local spinning triangle were shown in Fig. 1. 9 samples of wrapped yarn at different spinning speeds and different symmetric distances between two nylon filaments and the stainless steel filament were spun, and 3 samples of double-stranded stainless steel and experimental factors were listed in Table 1.
However, when the spinning speed is 60, different symmetric distance less affects on the twist.
The wrapped yarn wrapping is effective and can ensure the stainless steel filament in the center of wrapped yarn, and mechanical properties well.
Moreover, the structure, and tensile mechanical properties were measured on the wrapped yarns.

Yang and J.Wang Key Lab. for Advanced Technologies of Materials of Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China a fwen323@163.com, bhuangnan1956@163.com Keywords: Hydrogenated carbon films, XPS, mechanical property, haemocompatibility Abstract Amorphous hydrogenated carbon (a-C:H) thin films were deposited on silicon wafers and Ti6Al4V substrate using plasma ion immersion implantation and deposition (PIII-D) at room temperature (R.T.).
In this paper, the effects of hydrogen content on structure, mechanical properties, surface wettability and haemocompatibility were discussed. 1 Introduce Amorphous hydrogenated carbon (a-C:H) thin films have assumed a great interest because of their possible application in mechanics, optics and electronics [1-3].
Recently, a nano-indentation technique has been used to investigate mechanical properties of thin films.
The haemocompatibility of the a-C:H films is influenced by θw and γs p /γs d , not by the absolute γs p or γs d because the materials haemocompatibility is affected by many factors such as the ratio of sp 3 to sp 2 , electrical properties and composition etc.
The platelet adhesion behavior better is only one indication of anti-thrombogenicity, the other aspects of anti-thrombogenicity, such as coagulation factors, protein adsorption, should be done later on.

The mechanical properties of subgrade affect the service level of tramcar.
Therefore, if the thickness of the graded gravel layer and the soil layer treated with lime are constant, properties of the layers will play a critical influence on the resilient modulus of the subgrade. 4, Vertical displacement occurred in the earth subgrade takes a great important role in such deformation problem Therefore, if the thickness of the graded gravel layer and the soil layer treated with lime are constant, properties of earth subgrade will play a critical influence on the resilient modulus of the subgrade.
In preparation for field experiments which takes determining the relevant calculation parameters and validation as purpose, a basic platform for analysis of mechanical response for subgrade of tramcar with monolithic track-bed is established. 2, Based on the three-dimensional finite element model, considering gravity stress and some complicated non-linear factors (vehicle loads monolithic track-bed and properties of subgrade, etc),mechanical response for subgrade is discussed thoroughly and working status for subgrade of tramcar with monolithic track-bed is primarily identified. 3, The analysis results of vertical displacement can offer references for designing the thickness of layers and the criterion of compaction, solving the deformation problem and resilient modulus for subgrade of tramcar with monolithic track-bed, which provide design basis, theoretical support and the basis for decision-making for the future engineering.
Changsha: Central South University, 2005 [5]Sun Zhonglin: Experiment Research for Dispersive Soil Dynamic Characteristics Influence Factors [D].
[9]SUN Zhonglin:Experiment Research for Dispersive Soil Dynamic Characteristics Influence Factors [D].