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The Properties and the Influence Factors of the White Layer in the Surface Grinding C.
The properties of the white layer in the surface grinding are described.
Tomlinson [2] indicated that the metallurgical changes associated with the formation of white layers clearly affect the surface properties of the material, and it has been shown that their presence decreases the resistance to fatigue.
In order to verify the hardness of the workpiece affects the properties of the white layer, an annealed workpiece was used in the experiment.
Conclusions The properties and the influence factors of the white layer in the surface grinding are discussed.

In past research, it has been observed that the nano-sized CNTs possess remarkable mechanical properties [2].
Previous studies demonstrated that CNT structural factors greatly affect tensile strength.
CNT yarn models were constructed to investigate the structure-mechanical properties relationship.
Hashida, How do the mechanical properties of carbon nanotubes increase?
Curtin, Enhancing Mechanical Properties of Multiwall Carbon Nanotubes via s p 3 Interwall Bridging, Phys.

aduanjieli@scau.edu.cn, b ecjiang@scau.edu.cn, c looyuhua@gmail.com Keywords: Mechanical properties, PVC, Pine powder, Rice husk powder, Composites Abstract.
The content of titanate coupler affected significantly, the tensile properties of WPC appeared first increased and then decreased when the content of titanate coupler is increased from 0 to 3.5 shares( phr method).
In order to develop WPC with better mechanical properties .
This paper is mainly investigated the influence of different types of wood fiber, the content of wood fiber , particle size and the content of the titanate coupler on tensile mechanical properties.
It is further shown that the content of titanate coupler is very important influencing factors to the tensile properties of wood fiber / PVC composites.

Proper selection of alloying additions and thermo-mechanical processing will be considered as key strengthening factors which facilitate the formation of the desirable compounds and refining grain size.
The compounds segregated along the grain boundaries significantly affect the mechanical properties of the alloy, in specific, ductility.
Table 1 Mechanical properties of AA 7xxx alloy with different conditions.
Rolling alloys gives better mechanical properties with increased ductility.
The room temperature mechanical properties of hot rolled 7075 alloy.

Meanwhile, the desolution of W, Mo elements plays an important role in the decrease of the mechanical properties.
The obtained results of the mechanical properties are the average of three tests.
Mechanical Properties.
The effect of pure matrix on of the T23 steel is related to many factors, such as dislocation density, sub-grain, grain size, bainite island microstructure.
Meanwhile, the desolution of W and Mo elements plays an important role in the decrease of the mechanical properties.

The Influences of Alternating Magnetic Field to the Microstructure and Mechanical Property of Diamond Agglomerations Wang Sanxing1,a, Fu Yuming2,b, Guo Jianlong3, Huo Lijun4 1,2,3,4Mechanical Engineering College, Yanshan University, Qinhuangdao 066004, China a1009811130@qq.com,bmec9@ysu.edu.cn Keywords: diamond agglomeration; magnetic treatment; numerical simulation; microstructure; mechanical properties Abstract.
By numerical and experimental methods, heat alternating magnetic treatment of diamond agglomerations were researched, the microstructure and mechanical properties before and after treatment were also analysed comparatively.
Diamond tool material is a special kind of powder metallurgy composite materials, and the properties of matrix material inlaid with diamond particles is a key factor affecting the performance of the tool.
Magnetic treatment technology is increasingly getting the attention of scholars at home and abroad for its own advantages in improving the material microstructure and mechanical properties, strengthening environmental protection, and achieving sustainable development.
This means that the magnetic field can control or affect the shape, size, distribution and orientation of crystal growth during materials recrystallization or solidification process, and then it can control the material microstructure, and finally get the better mechanical properties[3,4].

It also reduces costs, improves mechanical properties, and enhances product efficiency [5].
This is also due to the influence of several other factors namely, material preparation, tool configuration, and also the sensitivity of the tool.
The more the addition of alloying elements, the better the mechanical properties.
The appearance of porosity defects will affect the value of the mechanical properties of an alloy to be incompatible [13].
“The Effect of Copper addition of The Mechanical and Electrical Properties of Al-Cu Alloy Casting”. (2017).

Grouping experimental method is used to make welded joints soaked, compare the variation law of mechanical properties of flush welded joint under the influence of corrosive environment.
As different areas of base material, reinforced joints have different particularity in connection, mechanical properties and usage of the environment [3].
This paper will study the degradation of mechanical properties of welded joints corroded in the corrosive media under high-stress state.
Groups Specimen 1 Specimen 2 Specimen3 Average 1 662 658 655 658 2 640 645 638 641 3 659 655 652 655 4 688 690 685 687 5 649 645 651 648 Results of tensile mechanical properties see Tab.3.
FeCl2 further diffuses in concrete encountering OH- ,2Fe+O2+2H2O→2Fe2++4OH-→2 Fe (OH)2，immediately produces Fe (OH)2， Fe (OH)2 generates Fe(OH)3 by dissolution and oxidation，Fe(OH)3 further generates nFe2O3·mH2O，Fe(OH)3 does not completely oxidize to produce Fe3O4，and rust layer forms on the rebar surface. 3.2.2 Kinetic conditions of anodic dissolution corrosion Thermodynamic factors and kinetic factors will affect environment.

After hot pressed, A2B2C1 combination obtained the highest mechanical properties.
The studied results show that the powders fabricated by mechanical alloying can improve sintering character of powders and affected the properties of mechanically alloyed materials [7, 8], which was significantly influenced by milling variables [9-13].
Microstructure and mechanical properties of hot-pressing materials.
The reason and mechanism of change of room temperature mechanical properties were perhaps caused by the increasing of Fe content, or also by other factors, which need to be further investigated.
After hot pressed, the Fe atoms dissolved into Nb lattices decreased the mechanical properties of Nb-30W alloy.

The nuclear class mechanical equipment with high reliability is required in nuclear power plant, but heat treatment is an important factor which affects reliability of mechanical equipment.
As a result, steels with a good corrosion resistance and adjusted mechanical properties by heat treatment are gradually developed [4]. 
Therefore, Deformation and cracking can be effectively prevented only when these factors are considered and appropriate measures are taken. 
However, many problems raised in practice, and these problems are caused by human factors.
Since there will inevitably be intermediate annealing and post-weld heat treatment in the production of the pressure vessel, in particular the temperature of the heat treatment after welding is close to or exceeds the performance of the tempering heat treatment temperature, the mechanical properties of the base material will be affected.