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It is found that the most significant parameters affecting the cutting front development are feed speed and water pressure.
Further, the actual jet impact angle is dependent on both the water pressure and feed speed, but at higher water pressures the actual impact angle tends to become independent of feed speed, while water pressure becomes the dominating factor.
In the offset-mode turning shown in Fig.1(a), the waterjet is positioned in such a way that it is almost tangential to the workpiece as in a traditional turning operation with the consideration of the soft or flexible nature of the jet in affecting the final radius of the workpiece.
The relevant material properties are given in Table 1.
Properties of the test specimen (95% alumina ceramic).

Recent researches [5] have pointed out that the fracture toughness is also depended on microstructure factors.
Mechanical property.
The mechanical properties of the drill pipe steel were summarized in Table 3, Figure 2 and 3 respectively.
To sum up, the result indicated that the new steel could reach 150ksi grade at 625℃ and gained the excellent matching properties of strength and toughness.
However, the coarse M3C carbide is an important factor affecting toughness.

Chitosan has been combined with a variety of biopolymers and bioceramic systems, such as hyaluronic acid, carbon nanotubes, growth factors, HA and calcium phosphate [5-9].
The scaffolds need sufficient mechanical properties to provide space maintenance at the fracture site and to prevent collapse of the scaffold pores.
Polymer-ceramic scaffold such as Chitosan/nano-hydroxyapatite composite scaffolds had previously been shown to have both superior mechanical properties [8,10-12].
The scaffolds need sufficient mechanical properties to provide space maintenance at the fracture site and to prevent collapse of the scaffold pores [10].
Using different composition and parameters cause change in pore size and mechanical properties of the scaffold.

Silicon Steel Sheet Vibration Model Based on the Magnetostrictive Properties Panting Dong1,a, Li Zhang2,b, Mengqi Liu, Tong Zhao, Liang Zou, Qingquan Li School of Electrical Engineering, Shandong University, Jinan 250061, China aemail: 648940281@qq.com, bemail: zhlieee@gmail.com Keywords: Magnetostrictive force, Elongation-based model, Energy conservation principle, Elastic thin plate theory Abstract: Magnetostriction of transformer core plays a dominated role in the vibration of transformer equipment.
The vibration of the high voltage transformer is very serious, it may not only affect the normal operations and service life of the equipment, but also result in serious impacts on living activities of the surrounding people [1].
Magnetostriction is a coupled magneto-mechanical phenomenon which appears in ferromagnetic materials where the magnetic and mechanical properties are tightly related [4].
The frequency of magnetostriction is twice the sinusoidal magnetic field, so the frequency property should also be considered.
But actual transformer cores are laminated structure, the dynamic properties should be different from single silicon sheet steel, to obtain the actual vibration properties of transformer,there are still a lot of work to do.

They are based on the correlation between the characteristics of their mechanical and magnetic properties.
It is necessary to take into account that the magnetic characteristics of ferromagnetic steel are influenced by various factors when the relationship between magnetic and mechanical properties is determined.
It can be used as a parameter for non-destructive testing of mechanical properties. 3.
The magnitude of the second kind stress in hardened steel affects both the relaxation coercive field force and the mechanical properties.
Shevnin, Magnetic control of mechanical properties in rolled products, Yekaterinburg: Uro RAS 254 (2002)

The mechanical properties of metastable β titanium alloys can be improved by grain refining and much attention has recently been paid to the grain refining by dynamic recrystallization during hot deformation processing [5-7].
The β grain size is affected by the heat treated temperature and time, consequently affect the mechanical properties of metastable β titanium alloys [8,9].
The n value for β phases in pure Ti was reported to be about 0.5 [13], while the n value for a fine-grained, hot-rolled TB-13 alloy is less than 0.5 due to the role played by various factors affecting the β grain growth kinetics.
The lower β grain growth activation energy for as-rolled metastable β titanium alloy may be attributed to two factors.
The n value for a fine-grained, hot-rolled TB-13 alloy is less than 0.5 due to the role played by texture and solute drag effect affecting the β grain growth kinetics. 3) The activation energy for β grain growth Qm is around 156 KJ/mol for the temperature in the range of 1103K-1203K.

Lots of experiments and researches show that concrete is a kind of typical sensitive material [2,3], of which the fracture strain is significantly affected by strain rate.
Thus, the mechanical properties and damage characteristics of concrete change greatly under dynamic load.
Because the compressive strength was the most important and basic mechanical properties, the compressive strength was used as a basic parameters to evaluate the mechanics properties of the concrete.
In Fig.3, it was the relationship between damage factors D and ‘freezing’ strain for 6 different strain rates.
In conclusion, the constitutive model of concrete after impact load followed: (5) Fig.6 were the static load curve and fitting curve after impact load, and it showed that the concrete constitutive equation established in this paper could describe the mechanics properties of dynamic damage of concrete very well.

After the EDM processing, the recast layer formed can cause degradation in the microstructure and mechanical properties.
During EDM, a recast layer is formed which can cause degradation in the microstructure and mechanical properties, which may affect the performance of the gimbal flexure.
Recast layer formed after EDM on M300 maraging steel flexure had been characterized for its composition, microstructure and mechanical properties as a part of this study.
Nanoindentation studies As the thickness of the recast layer was less than 5 µm, no technique other than nanoindentation can be used to evaluate its mechanical properties.
Both these properties showed little variation in the bulk material.

Further details about mix design and mechanical properties of these concretes are presented in Miah et al. 2015 [9]. 24 hours after casting, all the concrete specimens (B40-II and B40-III) for uniaxial fire tests were tight wrapped by plastic film inside the laboratory up to the day of the test.
Part of the cracks which are not parallel to the heated surface should affect in a lesser extent the concrete spalling.
Limited biaxial loads apparently can affect in a non-negligible way the thermally induced microcracking, so reducing concrete permeabilty at high temperature.
Then, the applied load is a very important key factor that fire resistance design of concrete structures have to take into account when considering spalling.
“Critical Factors Governing the Fire Performance of High Strength Concrete Systems”, Fire Safety Journal 42, pp. 482-488

For instance, Hirotaka Tanabe, Yoshio Miyoshi et al.[8] investigated the effects of substrate post-quenching on the mechanical properties of TiN films.
M. et al.[10] researched the effect of the annealing parameters on the microstructures and mechanical properties of Ta-Mo nanostructured coatings.
The ultimate goal of this work is to improve the mechanical properties of the coatings and increase the tool life.
Average residual stresses of TiN and TiAlN coatings before and after annealing 3.3 Mechanical Properties Figure 4(a) shows the microhardness of the coating surface before and after annealing.
Conclusions The microstructure, residual stresses and mechanical properties in TiN and TiAlN coatings deposited on the powder metallurgy high speed steel S790 substrates by multi-arc ion plating was investigated.