Properties and Characterization of Surface Oxides on Aluminum Alloys

1983 ◽  
pp. 321-321 ◽  
Author(s):  
Karl Wefers
Keyword(s):  
Aluminum Alloys ◽  
Properties And Characterization ◽  
Surface Oxides

Mechanical property and characterization of 7A04-T6 aluminum alloys bonded by friction stir welding

2020 ◽  
Vol 52 ◽  
pp. 263-269 ◽  
Author(s):  
Jianing Li ◽  
Molin Su ◽  
Wenjun Qi ◽  
Chen Wang ◽  
Peng Zhao ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Friction Stir Welding ◽  
Aluminum Alloys ◽  
Friction Stir

Study of physiological and enzymatic properties and characterization of pathogenic activity of a fungus isolated from moss Sanionia uncinata (Hedw.) Loeske in Antarctica

Polar Biology ◽  
2019 ◽  
Vol 42 (4) ◽  
pp. 783-792 ◽  
Author(s):  
Graciéle Cunha Alves de Menezes ◽  
Rodrigo Paidano Alves ◽  
Filipe de Carvalho Victoria ◽  
Jair Putzke ◽  
Antonio Batista Pereira ◽  
...  
Keyword(s):  
Enzymatic Properties ◽  
Properties And Characterization ◽  
Pathogenic Activity ◽  
Sanionia Uncinata

Fabrication and Characterization of Bulk Nanocrystalline Layer in Steel and Aluminum Alloys Formed by Shot Peening

2009 ◽  
Author(s):  
R. Waikar ◽  
Y. B. Guo ◽  
Keith A. Woodbury
Keyword(s):  
Aluminum Alloys ◽  
Shot Peening ◽  
Martensitic Steel ◽  
Bulk Material ◽  
Lower Surface ◽  
Martensitic Steels ◽  
Cross Sectional ◽  
Bulk Nanocrystalline ◽  
Nanocrystalline Layer

The formation of bulk nanocrystalline (NC) layers in AISI 1075 pearlitic and martensitic steels and aluminum alloys 6061-T6 and 7075 using air blast shot peening was studied. The cross-sectional microstructure of the samples showed a gradual reduction of the grain size near the surface. The NC layers were characterized using optical and scanning electron microscopy and nanohardness measurements. 2D surface topography of the top surface was also carried out. The roughness of the peened surfaces depends on sample hardness. The hardened AISI 1075 martensitic steel had lower surface roughness value. NC layers of 5 to 15 μm thickness were observed in the steels whereas the aluminum alloys 6061 and 7075 yielded NC layers up to 20 to 25 μm thick. The measured nanohardness in the NC layers confirmed the higher hardness of the NC layer compared with the bulk material.

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