scholarly journals Investigation of the influence of laser treatment parameters on the properties of the surface layer of aluminum alloys

2010 ◽  
Vol 5 ◽  
pp. 449-456 ◽  
Author(s):  
Jacek Borowski ◽  
Konrad Bartkowiak
Keyword(s):  
Surface Layer ◽  
Aluminum Alloys ◽  
Laser Treatment

scholarly journals The Possibility Of Use Of Laser-Modified Ti6Al4V Alloy In Friction Pairs In Endoprostheses

2015 ◽  
Vol 60 (2) ◽  
pp. 755-758 ◽  
Author(s):  
B. Majkowska ◽  
M. Jażdżewska ◽  
E. Wołowiec ◽  
W. Piekoszewski ◽  
L. Klimek ◽  
...  
Keyword(s):  
Surface Layer ◽  
Simulated Body Fluid ◽  
Residual Stresses ◽  
Laser Treatment ◽  
Body Fluid ◽  
Ti6al4v Alloy ◽  
Surface Cracking ◽  
Modification Process ◽  
Orthopedic Applications ◽  
Cryogenic Conditions

Abstract The purpose of this paper is to show results of laser treatment at cryogenic conditions of the Ti6Al4V alloy used for orthopedic applications. That modification process ought to bring beneficial changes of microstructure and residual stresses in the surface layer. The paper presents the abrasive wear of the base and laser remelted material in association with ceramics Al2O3. Despite the surface cracking after laser treatment the tribological properties in simulated body fluid have been substantially improved.

Microstructure behavior of some cast aluminum alloys as a result of double and multipass laser treatment

1992 ◽  
Author(s):  
Maxim L. Seleznev ◽  
Sergei U. Denisov ◽  
Ilya B. Afanasiev ◽  
Aleksei U. Privivkov
Keyword(s):  
Aluminum Alloys ◽  
Laser Treatment ◽  
Cast Aluminum ◽  
Cast Aluminum Alloys

scholarly journals The formation of a surface layer during microarc oxidation of aluminum alloys

2015 ◽  
Vol 70 ◽  
pp. 012002 ◽  
Author(s):  
A Ye Mikheev ◽  
A V Girn ◽  
E V Vakhteev ◽  
E G Alekseeva ◽  
D V Ravodina
Keyword(s):  
Surface Layer ◽  
Aluminum Alloys ◽  
Microarc Oxidation

scholarly journals Исследование механизма наноструктурирования приповерхностных слоев титана при воздействии лазерными импульсами наносекундной длительности

2021 ◽  
Vol 47 (3) ◽  
pp. 40
Author(s):  
А.Ю. Токмачева-Колобова
Keyword(s):  
Surface Layer ◽  
Dynamic Recrystallization ◽  
Laser Treatment ◽  
Power Density ◽  
Water Layer ◽  
Surface Layers ◽  
Near Surface ◽  
Physical Mechanisms ◽  
Nanosecond Pulses ◽  
Irradiation Power

The microstructure of near-surface layers of submicrocrystalline (SMC) technical titanium brand VT1-0 after laser treatment under the water layer with nanosecond pulses with an irradiation power density of F=2 GW/cm2 was studied. The effect of significant reduction of the initial SMC structure to a nanostructured state in a thin near-surface layer with a thickness of about 1 µm was found. The possibility of implementing physical mechanisms of nanostructuring of near-surface layers associated with phase recrystallization or rotational dynamic recrystallization is considered.

Laser Treatment of Aluminum Alloys for Fabrication of Weather-Resistant Superhydrophobic Coatings

2020 ◽  
Vol 15 (2) ◽  
pp. 141-145
Author(s):  
N. E. Sataeva ◽  
K. A. Emelyanenko ◽  
A. G. Domantovsky ◽  
A. M. Emelyanenko ◽  
L. B. Boinovich
Keyword(s):  
Aluminum Alloys ◽  
Laser Treatment ◽  
Superhydrophobic Coatings

Finishing of Shape Surfaces by Magnetic Abrasive Polishing Method with Rotating Working Area

2005 ◽  
Vol 291-292 ◽  
pp. 303-308
Author(s):  
V.A. Litvinenko
Keyword(s):  
Surface Layer ◽  
Fine Structure ◽  
Aluminum Alloys ◽  
Magnetic Materials ◽  
High Speed ◽  
Geometrical Accuracy ◽  
Technological Potential ◽  
Abrasive Finishing ◽  
Surface Performance ◽  
Magnetic Abrasive Polishing

The stable industrial trends towards improvement of product accuracy and quality call for necessity to widen the nomenclature of details surfaces and materials, which need finishing. The method of magnetic abrasive finishing (MAF) helps to meet these challenges. This paper presents the results of study of technological potential of MAF equipment with rotating working area, filled with magnetic-abrasive powder. Such equipment allows to polish the cylindrical, conical and helical surfaces of core details made of magnetic and non-magnetic materials. Geometrical accuracy and roughness of the above mentioned surfaces after MAF and also the conditions of their performance theoretically and experimentally studied. It is established that MAF changes the fine structure of detail surface layer made of hardened high-speed steels, titanium and aluminum alloys and improves their surface performance.

Interface Studies of Porcelain Enamel on Aluminum

1968 ◽  
Vol 26 ◽  
pp. 452-453
Author(s):  
D. B. Ballard ◽  
A. L. Gugeler
Keyword(s):  
Mechanical Properties ◽  
Surface Layer ◽  
Aluminum Alloys ◽  
Base Metal ◽  
Salt Solution ◽  
Narrow Band ◽  
Test Panel ◽  
Enamel Slip ◽  
Fracture Edge ◽  
Spalling Failure

Aluminum and aluminum alloys can be coated with porcelain enamel slip which is fired at 1000°F for approximately 10 minutes. This produces a material with a surface layer (about 0.1 mm thick) which has the properties of porcelain and the basic mechanical properties of a light ductile metal. A problem termed spalling may arise after weathering or exposure to a corrosive salt solution, if the base metal is not chosen carefully or pretreatment of the metal is not correct. A typical failure of this type on a test panel is illustrated in Fig. 1. The spalling failure initiates at pin holes, scratches and edges, then spreads laterally by attack at the interface between the enamel and base metal. An electron fractograph at the edge of a circular spalled area on a test panel of an improperly pretreated 6061 alloy is shown in Fig. 2. The corroded metal is on the bottom and the porcelain on the top. The narrow band through the center is the fracture edge of the porcelain enamel adjacent to the interface.

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