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International journal of mechanical and materials engineering, ISSN 1823-0334, 12/2020, Volume 15, Issue 1
Friction stir welding (FSW) is a solid-state welding technique, which two workpieces join by pressure and large plastic deformation near their melting points.... 
Aluminum base alloys | Pressure welding | Friction stir welding | Alloys | Heat distribution | Response surface methodology | Plastic deformation | Melting points | Workpieces
Journal Article
International journal of mechanical and materials engineering, ISSN 1823-0334, 12/2020, Volume 15, Issue 1
.... The impact of welding factors (rotational speed, welding speed) on tensile properties, microhardness, and surface roughness of FSW joints was investigated... 
Service life | Aluminum base alloys | Ultimate tensile strength | Mechanical properties | Surface roughness | Thick plates | Microhardness | Tensile strength | Friction stir welding | Rapid prototyping | Yield strength | Yield stress | Tensile properties | Elongation
Journal Article
Computational materials science, ISSN 0927-0256, 11/2020, Volume 184, p. 109862
....•Stress change is key factor to phase transformation and graphitization of diamond. Molecular dynamics simulation of friction is conducted by sliding SiC hemisphere on diamond bulk... 
Structural transformation | Diamond | Friction | Stress
Journal Article
Geothermics, ISSN 0375-6505, 11/2020, Volume 88, p. 101901
•A new friction factor is developed for water flow in geothermal pipes.•Extensive experimental study is conducted using pure water for fluid temperature from 25 °C to 60 °C... 
Temperature | Turbulent flow | Energy | Geothermal energy | Rough pipe | Friction factor | Pressure loss
Journal Article
Tribology international, ISSN 0301-679X, 10/2020, Volume 150, p. 106368
Tribological behavior of 37NbCrCo steel is a key factor with regard to the service life of the gearing systems... 
SnAgCu–Ti3SiC2 | Friction interface | 37NbCrCo | Sinusoidal microchannels
Journal Article
Separation and purification technology, ISSN 1383-5866, 10/2020, Volume 248, p. 117027
....•The variation of overall separation efficiency, grade separation efficiency is obtained.•Effect of vane type on friction factor and separation efficiency is analyzed to find out the optimal separator... 
Friction factor | Fluid film | Corrugated plate gas-liquid separator | Computational fluid dynamics | Separation efficiency
Journal Article
Additive manufacturing, ISSN 2214-8604, 10/2020, Volume 35, p. 101345
An additively manufactured prototype made of IN939 for a Siemens Large Gas Turbine with wavy cooling channels has been prepared for friction factor determination of individual channels... 
In-wall cooling | Laser powder bed fusion | Friction factor | Additive manufacturing | Experimental
Journal Article
Continental Shelf Research, ISSN 0278-4343, 10/2020, Volume 201, p. 104134
Cross-shore and alongshore velocities were measured over five high tide cycles in the swash and inner surf zones of a dissipative beach (significant wave... 
Shear stress | Friction coefficients | Logarithmic law | Swash zone | Velocity | Foreshore | FRICTION | SEDIMENT TRANSPORT | ENERGY | SEA-BREEZE | OCEANOGRAPHY | DYNAMICS | PREDICTIONS | INTERMEDIATE | DRIVEN SWASH | BORE | VELOCITIES
Journal Article
Materials & design, ISSN 0264-1275, 09/2020, Volume 194, p. 108879
Predicting tire friction in a laboratory environment is a complicated issue. Varying one factor at the time for experimenting to obtain insight into tire friction does not necessarily provide a proper judgment... 
ABS | Braking distance | LAT100 | Tribometer | Tire friction | Rubber | Design of expeiment
Journal Article
Journal of materials science, ISSN 0022-2461, 09/2020, Volume 55, Issue 26, pp. 12338 - 12352
Journal Article
International journal of fatigue, ISSN 0142-1123, 09/2020, Volume 138, p. 105706
•Dissimilar Al/steel welds were fabricated by friction stir welding.•Fatigue crack propagation near the interface was investigated.•Fatigue crack propagation... 
Dissimilar weld | Fatigue crack propagation | Friction stir welding | Crack closure
Journal Article
Journal of materials science, ISSN 0022-2461, 09/2020, Volume 55, Issue 26, pp. 12458 - 12475
Journal Article
Surface & coatings technology, ISSN 0257-8972, 09/2020, Volume 397, p. 125980
In the present study, the effect of axial feeding rate of the consumable rod was investigated on the microstructure, texture, and tribological characteristics... 
Mechanical properties | Friction surfacing | Microstructure | Tribological characteristics | Texture
Journal Article
Tribology letters, ISSN 1023-8883, 09/2020, Volume 68, Issue 3
Journal Article
Surface & coatings technology, ISSN 0257-8972, 09/2020, Volume 397, p. 126040
.... Process temperatures are an important factor determining the quality and geometry of the deposit... 
Temperature | Dissimilar aluminum alloys | Friction surfacing | Deposit geometry
Journal Article
Construction & building materials, ISSN 0950-0618, 09/2020, Volume 255, p. 119304
•The performance of polyurethane-stabilized ballast was studied in direct shear mode.•The stabilization efficiency of polyurethane was higher than that of... 
Shear strength | Large-scale direct shear test | Ballast breakage | Friction angle | Elastan-stabilized ballast | Stabilization efficiency factor (Sef)
Journal Article
Journal of the mechanical behavior of biomedical materials, ISSN 1751-6161, 09/2020, Volume 109, p. 103823
The grain structure and surface morphology of bio-implants act as a pivotal part in altering cell behavior. Titanium alloy bone screws, as common implants, are... 
Bio-inspiration | Ti–6Al–4V alloy | Cellular behaviors | Friction stability | Laser surface texture | Overlapping structure
Journal Article
Geothermics, ISSN 0375-6505, 09/2020, Volume 87, p. 101873
Accelerated global warming caused by the use of fossil fuels has resulted in an elevated demand for renewable energy such as geothermal energy, which exploits... 
Porous media | Friction factor | Ground heat exchanger | Energy efficiency | Offset strip fin (OSF) | Geothermal energy
Journal Article
Materials Chemistry and Physics, ISSN 0254-0584, 09/2020, Volume 251, p. 123102
Investigation on the ultrasonic-assisted synthesis of graphene oxide-CuO (GO-CuO) nanocomposite and its nanofluid was accomplished in this work for intensified... 
GO-CuO nanocomposite based nanofluid | Thermal conductivity | Friction factor | Nusselt number | Ultrasound
Journal Article
Transportation Geotechnics, ISSN 2214-3912, 09/2020, Volume 24, p. 100372
.... However, the methods currently available to calculate the bearing capacity of driven piles embedded in clay have been developed based on empirical factors derived from limited tests... 
Analytical methods | Driven piles | Skin friction | Evolutionary polynomial regression analysis
Journal Article