Search results

However, there are few basic data available, at least in the published literatures, regarding the relationships between cold rolling, intermediate annealing and mechanical properties of Inconel 690[10].
The mechanical and corrosion properties of Alloy 690 are noticeably affected by microstructure after the last processes such as cold rolling, annealing and solution heat treatment.
And these changes are close connected with mechanical properties of this alloy.
Annealing temperature is an important parameter affecting the hardness of alloy 690.
A critical strain affecting the hardness of Alloy 690 was determined to be between 15% and 25%.

Increasing the frequency of current pulses affected on increasing the specific area of pores.
These properties make this material in demand in the marine and aerospace industries.
X 256) Often these types of defects occur due to poor gas shielding of the welding pool, and factors that destabilize the arc.
Chuang, Effect of heat input on microstructure and mechanical properties of Al-Mg alloys fabricated by WAAM, Applied Surface Science. 486 (2019) 431–440
[6] A.Liu, X.Tang, F.Lu, Study on welding process and properties of AA5754 Al-alloy welded by double pulsed gas metal arc welding, Materials & Design. 50 (2013) 149–155.

Experimental study on the fatigue properties of RC beam strengthened by prestressed CFL Yi Yang 1, a, Peiyan Huang1,b and Jun Deng1,c 1 College of Traffic & Communications, South China University of Technology, Guangzhou 510640, China a yiyang@scut.edu.cn; b pyhuang@scut.edu.cn; c dengjun@scut.edu.cn Keywords: prestress, Carbon Fiber Laminate (CFL), RC beam, fatigue property, experimental study Abstract: Bonding prestressed CFL to strengthen reinforced RC structures can improve the bending capability of structures and the working efficient of CFL.
Base on the fatigue experiments of 4 RC beams strengthened by prestressed CFL, the present paper analyzes the fatigue properties of prestressed CFL reinforced RC beams.
There are many factors which can affect the failure of the RC beams strengthened with CFL, such as the CFL thickness and modulus of elasticity, the concrete compressive strength and the stress level et al.
However, the reinforce of the beam will yield under the peak load of 32.5kN, and the fatigue properties are complex more. 40 80 120 160 200 27.5 30.0 32.5 Maximum load (kN) Fatigue lives (10 4 cycles) prestressed without prestress Fig. 2 Comparing curve of fatigue lives Crack growth High speed vidicon is used in the experiment to analyze the growth of the main crack.
Journal of Mechanical strength, 2004, 26(s): 025-027

Bone implants are biologically affected by the environment, as well as mechanical functional loads.
Inorganic polymers have physical and chemical resistance, but may have degraded processing characteristics and insufficient mechanical properties.
By its physicochemical, mechanical and biological properties it is almost completely analogous to titanium.
It all depends on the combined method: the porous structure of the implant, its mineral enrichment and the influence of two protein growth factors introduced into the implant.
Mechanical properties of the bone tissue of the human skull // scientific foundations of modern progress.

Compared to conventional fusion welding methods, the advantages of the FSW process include better mechanical properties, low residual stress and distortion, and reduced occurrence of defects [5].
In the friction stir welding process, both tool rotation speed (ω) and advancing speed (v) are known to exert a considerable influence on the thermal input and mechanical properties [11].
Processing Map 125 160 250 900 200 700 315 80 1120 100 Advancing Speed(mm/min) Rotating Speed(rpm) Defective Weld Sound Weld Good Mechanical Properties Fig. 5.
Table 2 shows the tensile properties of the joints welded at different speed ratios.
Tensile Properties of Friction-Stir-Welded Al 2024-T4.

The results indicated that the composite materials could modify the mechanical property of ceramics.
Introduction An ideal bone substitute should include biological and mechanical properties.
However, in BCP/PLA, PDLLA takes the high proportion that enables the improvement of the mechanical properties of composite material, but it seems not to improve the osteoinductivity of the materials.
So it is feasible and prospective to prepare composite materials based on calcium phosphate ceramics in order to improve its mechanical properties and maintain its bioactivity especially osteoinductivity.
Conclusion The composite materials could modify the mechanical property of ceramics.

However, the content of magnesium in the La-Mg-Ni-based alloy is a key factor that affects the phase structure and electrochemical property of the La-Mg-Ni-based alloy [6-9].
The main electrochemical properties of the samples are summarized in Table 2.
The phase transformation from single-phase to multiphase not only affects the activation property, but it also significantly affects the discharge capacity [3].
Jarzebski, Structural characterization and electrochemical hydrogen storage properties of Mg2Ni1-xMnx (x = 0, 0.125, 0.25, 0.375) alloys prepared by mechanical alloying.
Percheron-Gue´gan, Mechanical millingand subsequent annealing effects on the microstructural and hydrogenation properties of multisubstituted LaNi5 alloy, Acta Mater. 53 (2005) 2157-2167

To produce the pressing forms from calcined gypsum the following methods and operations have been used: operations concerning production of gypsum with the best physicochemical and mechanical properties in order to be used for construction of pressing forms (determining the quality of gypsum based on water and plaster ratio; establishing the influence of epoxy and curing solution on the mechanical resistance of the obtained gypsum; determining the influence of lime, boric acid, zinc chloride, sodium chloride on the hardening period of calcined gypsum); production of the models from wood and metal; fixing the model on the gypsum cushion; finding on the model the separation line and restrict the area used for gypsum moulding; applying grease on the model, on the plate under the model, on the walls and on all parts that come in contact with liquid gypsum to be poured; preparation of the gypsum solution.
When producing forming mould from gypsum is difficult cu take in consideration different factors that affect the dimensions of the final part, and for this reason, if some wax models are used, the dimensional and shape errors can be corrected and the moulding form can be produced after the gypsum model executed using one or more sample.
Features high-strength gypsum produced in SUA Gypsum properties Hydrocal industrial white Hydrocal for forming Hydrocal A-11 Hydro- stoun White gypsum for forming Hydrocal For moulding Hydrocal B-11 Gypsum with high dilatation Ratio water - gypsum V/G ; % 38-42 40-42 40-42 32 60-63 54-56 44-48 40-35 Curing time(minutes) 20-40 17-20 16-26 17-25 25-50 25-45 18-23 15-24 Dilation in solidifying gypsum (average) % 0,23 0,125 0,04 0,16 0,19 0,125 0,04 1,5 Minimum compressive strength, the raw Kgf.
Laitinen, Effects of processing and manufacturing of high nitrogen-containing stainless steels on their mechanical, corrosion and wear properties, Journal of Materials Processing Technology 117 (2001) 424–430

Significance of factors and their interactions can be computed using statistical analysis.
Important mechanical and thermal characteristics are.
Result and Discussion In this study A (spindle speed), B(feed rate),C(axial depth of cut) are the main factors considered for the experiment of surface roughness, and also cross effect of three factors are considered to get the quadratic relation.
The magnitude of B2 also affects surface roughness, other factors do not make big effect to surface roughness.
The influence of spindle speed, feed rate and depth of cut affecting on the surface roughness was found by ANOVA.

Their mechanical properties, such as nanoindentation hardness, friction coefficient, and wettability have been investigated.
The effect of the working pressure (N2) on the mechanical properties of TiN films is discussed.
The dependence of the mechanical properties on various working pressures and film microstructure is a major concerns of this study.
This reveals that the orientation of TiN films changes toward the (111) orientation due to increased ion bombardment which favors low energy at (111) orientation which influence the structure and mechanical properties of the growing films.
To investigate structural and mechanical properties of TiN coatings.