Search results

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].

Effect of density on physical and mechanical properties of reconstituted small-sized bamboo fibrous sheet composite Rongxian Zhu 1, a*, Wenji Yu 1,b 1 Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, China 100091 azhurongxian@caf.ac.cn b yuwenji@caf.ac.cn Keywords: Small-sized bamboo Reconstituted bamboo fibrous sheet composite Density Cold-pressing Physical and mechanical properties Abstract The effect of density on physical and mechanical properties of phenolic-impregnated cold-pressing reconstituted small-sized bamboo fibrous sheet composite was evaluated.
It has been assumed that the density can affect the main physical and mechanical properties of The Composite which made from the processing of cold-pressing and heat-curing.
Density was consistently found to be one of the most significant factors that affect the Composite physical and mechanical properties [7, 8].
To examine the effect of Composite density on the physical and mechanical properties, each specimen’s density was stated clearly before testing.
It was shown that density had a significant effect on these physical and mechanical properties.

Prolonged concrete mixing can occur due to transportation delays or logistical issues on construction sites, potentially affecting the material's properties.
Such scenarios may unfold for various reasons, including traffic delays, logistical complications, or unforeseen hold-ups at the construction site, leading to potential alterations in the concrete's properties affecting its manageability, structural competence, and endurance.
A review of concrete's bacterial viability highlighted the importance of optimizing environmental factors for effective biomineralization-based self-healing [3].
Additionally, prolonged mixing can affect the setting time of the concrete, either accelerating or retarding it, depending on various factors such as cement type, ambient temperature, and the presence of chemical admixtures.
This factor could influence the hydration process and subsequently affect the development of concrete properties.

Microstructure and mechanical properties of the HRS material are investigated in detail.
Though the MM time is the same, annealing has a significant influence on the mechanical properties.
As mentioned above, those milling and annealing conditions significantly affect the microstructure so that these outstanding mechanical properties of the HRS materials are attributed to the microstructure.
Figures 6 and 7 show the relation between mechanical properties and microstructural features.
Mechanical properties of the HRS compacts were strongly influenced by microstructural factors such as the shell area fraction and the core grain size of the nano / meso harmonic microstructure.

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.

Introduction Fiber Reinforced Polymer (FRP) bars have a lot of excellent mechanical properties, the most important aspect is the excellent corrosion resistance.
Under the high temperature fire, the strength and stiffness of FRP rebar may lost, this is an important factor in affecting normal use for FRP rebar in structure.
Currently, the FRP in the high temperature strength and stiffness properties have not been studied in depth [1,2,3,4], this paper studies mechanical properties of GFRP rebars after high temperature, and the mechanical properties’ change regularity at continued constant temperature is studied at different times.
The research contents is the influence regularity of the factors of diameter of GFRP bars after high temperature, temperature and constant time on tensile properties.
Lu: Research on mechanical properties of glass fiber after high temperature fire.

This study was carried out to investigate the effect of Flux Core Arc Welding factors on the mechanical properties of High Strength Low Alloy (HSLA).
The mechanical properties were obtained by performing the hardness test.
Basically, the metal that will be subjected to the hot welding process will affect the mechanical properties of the metal.
This steel is an alloy steel designed to have good mechanical properties.
One of the important material properties to know is mechanical properties.

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.

As such, significant studies have been conducted to simulate the mechanical properties of BFRP bars under degradation when subject to different hostile substances.
The other factors selected were the temperate and immersion time.
The compactness and mechanical properties of corrosion products decrease with the concentration increase of NaHSO3 in the solutions [17].
The compactness and mechanical properties of rebar decrease with the concentration increases.
Alzeebaree, and A. çevik, “Effects of sulphuric acid on mechanical and durability properties of ECC confined by FRP fabrics,” Adv.

There are many factors that affect the mechanical properties of laminated veneer lumber (LVL), such as the thickness of veneer, the compression ratio, the wood species and the density of LVL.
The density of wood is one of the main reasons effected the mechanical properties of wood.
The compression ratio, assembly require mode and enhanced mode of LVL affected the its creep properties, modulus of elasticity (MOE) and MOR [3].
Studies show that the mechanical properties of LVL may be improved advisably by using dipped veneer and enhancing density of LVL.
The mechanical properties of LVL would be enhanced with the increase of compression ratio in certain range.