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However, the relationship between scan speed, thermal behavior, and resulting material properties is complex and requires careful consideration.
Oxygen is a highly alphagen element, so contamination with oxygen and nitrogen can alter the solidification behaviour and phase transformations of Ti64, leading to undesirable microstructures and potentially compromised mechanical properties [6].
Powder physical properties analysis results.
The combined effects of porosity and microstructural variations can negatively impact tensile strength, ductility, fatigue life, and other critical mechanical properties [3].
It is crucial to understand how these treatments affect the microstructure and mechanical properties of Ti-6Al-4V processed by PBF-L/M.

This paper introduces basic working principle of electromagnetic inertial actuators and establishes the mechanical model of actuator.
Introduction Mechanical vibration on the impact of daily life is everywhere.
Considering the air gap magnetic field strength, the coil length and the maximum current density of the coil and other factors, the initial model’s size of the actuator is determined.
Its stiffness directly affects the actuator first natural frequency, so it should be considered at the design time.
Reference [1]HOU Jun-fang, BAI Hong-bo, TAO Shuai, ZHAO Hai-tao: Frequency and Coupling Characteristics of Electromagnetic Actuator in Active Vibration Isolation System, Journal of Vibration and Shock, 2008,27 (11): 177~181 [2]YU Suo-qing, WANG Ao-bing, ZHAO Li-po: Experimental Study of Electromagnetic actuator, Machinery Design & Manufacture, 2011, (01): 136~138 [3]ZHANG Hong-tian, LIU Zhi-gang, ZHANG Tian-yuan, et al: Experimental Study of the Properties of Electromagnetic Active Vibration Isolation Dystem, NOISE AND VIBRATION CONTROL, 1996, (01): 15~17 [4]LI Yun-chao WANG Liang-xi ZHANG Yu-chun: Modeling and Simulation of Electromagnetic Active Suspension, Journal of Armored Force Engineering Institute, 2004, (01): 69~72 [5]Xiao Ran,Fan Wenxin,Guo Changli,et al.

At low frequencies, below 1 GHz, the main reason causing the differences in the microwave magnetic properties of the powders is the shape of powder particles.
The effect of elemental and phase composition on the microwave properties of composites is less studied.
Data on the phase and elemental composition, particle size and shape, and magnetostatic properties of the milled powders are obtained.
A relative contribution from these depends on the shape, composition, and volume fraction of inclusions, on frequency, as well as on many other factors.
The discrepancy in microwave properties at higher frequencies arises mainly from the effect of eddy currents and depend on the size of powder particles.

In this paper, the three-dimensional molding mechanical and electrical integration unit Molded Interconnect Devices (MID) is introduced.
The three dimensional compression molding mechanical and electrical integration unit (MID) will be one item face future technology, will be the circuit design and the mechanical and electrical products design[2]An emerging domain, may reduce system's order of complexity, reduce the system power loss, to enhance the system integration rate and the reliability.
So the electromagnetic wave signal is very difficult to penetrate the outer covering, thus affecting the interconnection intercommunication the effect.
It besides needs to consider this unit mechanical property and the electric circuit performance in the three-dimensional space integration[3], but also needs the overall evaluation material special performance, the formation processing, etching galvanization aspect and so on processing craft and complex spatial assembly factors.
Regardless of the traditional RFID or the intelligence embedded technology, to design and the manufacture the IOT[7] ciucuit with thses technologies, will face how to connect the outside antenna and the intelligent chip, which will not affect the radio signal acceptance and transmits.

Most of them have been come to the conclusion that those factors caused the crack initiation are surface decarboning, blocky carbides and longitudinal inclusions, the preventive method were also proposed to avoid similar events.
However, those factors have been improved with the development of industry, the Iron&Steel corporations in china have done great improvement on production of the raw materials.
Results and discussion The tensile test results shown in Table.1 reflect the mechanical properties of PC steel bars before and after cold-heading.
Table.1 The mechanical properties of PC steel bars before and after cold-heading Steel No Tensile-strength (MPa) Yield-strength (MPa) Elongation (%) A Before cold-heading 895 785 14.5 After cold-heading 890 782 15.0 B Before cold-heading 1170 1050 14.5 After cold-heading 1160 1060 C Before cold-heading 1340 1230 11.5 After cold-heading Cracking at the upset head The Table. 2 shows the tensile results for the sample B and C after annealing at 400˚C for 5min, the tensile strength of the samples has decreased, and the strength retention is more than 90%, but the elongation has improved to a very high level.
Table.2 The mechanical properties of PC steel bars with upset head after annealing Steel No Tensile-strength (MPa) Yield-strength (MPa) Elongation (A, %) B After annealing 1090 940 17.5 C After annealing 1260 1220 15.5 Variations of the tensile properties (YS, TS, El) have shown in Table.1 and Table.2, which were affected by microstructure change during heat treatment.

The magnitude of the cutting forces is influenced by the structure and mechanical properties of the material being machined, the geometry of the cutting tools, the cutting parameters used, and the cutting conditions.
Akif Erden observed changes in properties by adding molybdenum to powdered steel [6].
Analysis of the obtain results showed that cutting edge geometry, cutting speed and feed rate were the most significant factors for the resulting cutting force, while cutting edge geometry and feed rate were the most significant factors for surface roughness.
All the mentioned materials are the product of powder metallurgy, which offers uniformity of structure and also very small primary carbide sizes - below 5 µm - which has a very positive effect on mechanical properties.
Erden et al., Investigation of microstructure, mechanical and machinability properties of Mo-added steel produced by powder metallurgy method, The International Journalo of Advanced Manufacturing Technology (2021)

The properties of HYP are between traditional chemical pulp and mechanical pulp [1].
The main properties were: dryness 35.5%, brightness 78 %ISO, freeness 490ml.
Because temperature was one of the essential factors on softening lignin and removing of shives, outlet temperature could affect the removing rate of shives.
:Effect of the Mechanical Treatment with a High-shear Kneader on Physical Properties of Bleached Wheat Straw Pulp(China Pulp & Paper Industry, China, 2007)
Changes of Pulp Properties and Fiber Characteristics in P-RC APMP Pulping (Transactions of China Pulp and Paper, China 2004)

Miszczyk1 1 Institute of Metallurgy and Materials Science, PAS, PL-30-059 Kraków, Poland 2Mechanical Department, University of Opole, Opole, Poland 3 Université Paris-Sud, ICMMO, CNRS UMR 8182, Laboratoire de Physico-Chimie de l'Etat Solide, Orsay, F-91405, France Keywords: ECAP, Texture, Microstructure, Mechanical properties, Aluminium alloy Abstract.
The objective of the study was to determine the effect of strain path on texture, microstructure and mechanical properties development of severely deformed Al-Mn-Mg alloy.
Introduction Severe plastic deformation (SPD) is very often used for the improvement of strength properties of aluminium alloys by converting the conventional coarse-grained metals into ultra-fine grained materials [1].
Results and discussion Mechanical testing.
For particular pass number two factors influence the microstructure evolution of the AA3104 alloy.

The result is forming micro spots and cracks that affect the metal mechanical and electrical characteristics seriously.
The research showed that the relative humidity and the pH of dust particles are important factors in creating dust corrosion [4].
Corrosion critical relative humidity has relationship with the type of metal, the surface state and the ambient gas and other factors.
Temperature can indirectly affect the corrosion rate by affecting the relative humidity, wetting time, and other factors.
The chemical property of the salt in the solid state is not active.

The physical (smoothness and thickness of film) and mechanical properties (tensile strength and elongation at break) of latex film are still good.
They were subsequently characterized for the physical properties (i.e. thickness, film surface, color, and appearance), optical properties (i.e. clearance, crack-free), and mechanical properties (i.e. tensile strength, elongation at break, and tear resistance).
Because the SEM result of mangosteen-peel powder microstructure likes sharp thorn effect to increase or reinforce the mechanical properties of natural rubber latex gloves.
It can increase the mechanical properties such as tensile strength, elongation at break, and tensile stress.
Njopwouo, Effects of Some Processing Factors on Technical Properties of a Clay-Based Ceramic Material, Applied.