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The main negative factors leading to a decrease in the casting properties of the process, as well as the quality of the castings obtained, are indicated.
The mechanical properties of copper castings can be improved by heat treatment.
Summary Thus, chill casting of copper alloys is a complex technological process that depends on many factors that affect both the mechanical properties and the quality of the castings obtained.
Among the unfavorable factors inherent in the casting process of copper alloys: high melt temperature, as well as poor casting properties of copper.
Hekimoǧlu, Relationships between mechanical and tribological properties of Zn-15Al-based ternary and quaternary alloys, International Journal of Materials Research. 107(7) (2016) 646-652

The preheating temperature and volume fraction were identified as the key variables affecting the UTS.
Each parameter could affect the properties and microstructure of the extruded products [7, 8].
This method was selected because it can cause less effect deformability on mechanical properties of recycled materials [10].
The chemical composition and mechanical properties of the aluminum alloy are shown in Table 1 and Table 2.
The interactions between factors were also investigated.

Introduction Recently the low-carbon bainite steel has obtained widespread concern and application as its super mechanical properties[1-4].
Generally, the bainite is obtained in the process of controlled rolling and controlled cooling or thermal treatment, in which it can generate more innerstress which could affect bainitic transformation and the microstructure and mechanical properties of bainit steel.
Applied stress accelerates atom diffusion[12],possibly makes carbon atoms redistrib-ute and clusteris at grain boundaries and other areas of defect, even induces the precipitation of carbide, and might reduce interfacial energy[9-10].All of the factors can make baintic transformation occur at lower temperature.
In general,during the cooling process after thermomechanical treatment, the inner stress including thermal stress and transformation stress becomes greater with increasing cooling rate, which must affect phase transformation and which also affect mechanical properties after phase transformation, thus it is unignorable for inner stress to affect the structure and performance of steel during fast cooling or thermal treatment after rolling. 3 Conclusions (1) The applied compressive stress increases the starting temperature of bainitic transformation, decreases the finishing temperature
Materials For Mechanical Engineering Vol. 27, (2003)6, pp. 4-7

Cube compressive strength of raw-soil based mater is an important index of mechanical property.
Cube compressive strength of raw-soil based mater is an important index of mechanical property.
The materials strength can directly reflect the mechanical properties of building structures.
By estimating Weibull distribution of curing time and method, the rule of influence of test factors on test results is obtained.
Different curing methods have different estimates, which indicates that curing methods have an inevitable effect on material properties.

The properties studied in the geopolymers were their compressive strength and acid attack resistance.
The activation of an aluminosilicate source in the presence of calcium depends on several factors, such as elemental composition, mineralogy and physical properties of the aluminosilicate, calcium source, nature of soluble alkali metal and curing conditions [1-3].
Williams, Influence of calcium compounds on the mechanical properties of fly ash geopolymer pastes, J.
Ecklund, Factors affecting the suitability of fly ash as source material for geopolymers, Fuel 89 (2010) 992–996
Chaudhary, Mechanism of geopolymerization and factors influencing its development: a review, J.

Another factor affecting the end product is the polymer processing method and process manufacturing conditions.
The extent to which process parameters can affect the resulting mechanical properties is the subject of many investigations.
Mechanical properties were evaluated by the Oliver & Pharr method.
Mechanical properties were evaluated by the Oliver & Pharr method.
Mechanical properties were evaluated by the Oliver & Pharr method.

Environmentally-assisted material degradation involves mass transport and mechanical processes interacting in the material.
The numerical modeling of a showcase demonstrates a crack initiation as well as a crack propagation situation with respect to the determination of stress-intensity factors; a crack deviation situation with a curvilinear crack path is modeled by the introduction of a geometrical perturbation and a locally enhanced species concentration.
A mass transport model describes the evolution of a time dependent concentration field that affects the mechanical properties.
The strain energy density ψ is as- sembled by two factors, ψ=1-ω2+kψ0εij, whereupon ψ0εij= 12λεkkεll+ μεijεij with Lame´-constants λ and µ.
The material degradation is modeled by the factor 1-ω2+k, where ω=1 defines a fully degradated material.

Tensile Properties of Linear Low Density Polyethylene / Rambutan Peels (Nephelium chryseum Blum.)
PE is easily available, excellent mechanical properties, chemical and biological inertness, low cost, easily processable and high energy effectiveness [4-5].
Fiber – matrix interfacial adhesion is the factor that affects the mechanical properties of the fiber – reinforced materials.
There are some several factors to determine the interfacial bonding such as the fiber aspect ratio, the nature of fiber and polymer components and the treatment of the polymer of the fiber [22-23].
It can be related to many factors such as incompatibility between matrix and fibers, improper manufacturing processes, fiber degradation and others.

After that, macrostructure and microstructure were investigated and the density of porosity and testing of mechanical properties were determined.
Aluminium alloy 6082T6 exhibits excellent mechanical properties.
For this reason, the researchers are interested in improving aluminium welding repairs using pulse current to improve the macrostructure, microstructure and mechanical properties.
This is because the heating repeated and the increasing formation of porosity affecting the tensile strength.
Welding with filler 5356 was higher tensile strength than welding with filler 4043 due to the properties of the filler.

Through the result of the test, we analysis the factors affecting the shear resistance of asphalt mixture such as modification agent,confining pressure, gradation type and also get the mechanical properties of the asphalt mixture in the triaxial stress state.
The road materials are updated constantly, rubber powder modified asphalt mixture can not only improve the engineering properties of the pavement but also is greatly beneficial from the point of view of energy saving, environmental protection and development of circular economy.
The mechanical strength is mainly composed of aggregate particles of the friction among mineral aggregate particles and bond between asphalt and mineral aggregate [1].
The properties of material and the gradation of aggregate Materials.