Microstructural evolution and mechanical properties of welding seams in aluminum alloy profiles extruded by a porthole die under different billet heating temperatures and extrusion speeds

2017 ◽  
Vol 247 ◽  
pp. 214-222 ◽  
Author(s):  
Junquan Yu ◽  
Guoqun Zhao ◽  
Weichao Cui ◽  
Cunsheng Zhang ◽  
Liang Chen
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Microstructural Evolution ◽  
Porthole Die

Microstructural Evolution and Mechanical Properties of Ultrafine Grained Commercially Pure 1100 Aluminum Alloy Processed by Accumulative Roll-Bonding (ARB)

2004 ◽  
Vol 449-452 ◽  
pp. 625-628 ◽  
Author(s):  
Yong Suk Kim ◽  
T.O. Lee ◽  
Dong Hyuk Shin
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Microstructural Evolution ◽  
Sliding Wear ◽  
Al Alloy ◽  
Commercially Pure ◽  
Transmission Electron ◽  
Ultrafine Grained ◽  
Average Grain Size ◽  
Accumulated Strain

The ARB process has been carried out up to seven cycles on a commercial purity 1100 aluminum alloy to obtain ultra-fine grains with the average grain size of 500 nm. Microstructural evolution of the ARB processed aluminum alloy was examined by a transmission electron microscopy as a function of accumulated total strain. Mechanical properties including hardness, tensile property, and sliding wear characteristics of the severely deformed Al alloy were also investigated. Grain boundaries of the ARB processed alloy were diffusive and poorly defined after the initial ARB cycles, however they changed to well-defined high angle boundaries with the increase of the accumulated strain. Though hardness and strength of the ARB processed alloy were enhanced significantly, wear resistance of the processed alloy hardly increased. The mechanical properties were discussed in connection with the microstructure.

Effects of cooling condition on microstructural evolution and mechanical properties of friction stir processed 2A14 aluminum alloy

2019 ◽  
Vol 6 (12) ◽  
pp. 126577 ◽  
Author(s):  
Jian Wang ◽  
Yalin Lu ◽  
Dongshuai Zhou ◽  
Yang Zhang ◽  
Zhihao Bai ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Microstructural Evolution ◽  
Cooling Condition ◽  
Friction Stir
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