Features of Forming a Structure of the Copper-Zinc Alloy Coating on the Aluminum Alloy Surface by Friction Stir Processing

2020 ◽  
Vol 63 (7) ◽  
pp. 1179-1185
Author(s):  
A. V. Gusarova ◽  
A. V. Chumaevskii ◽  
A. P. Zykova ◽  
D. A. Gur’yanov ◽  
K. N. Kalashnikov ◽  
...  
2015 ◽  
Vol 1095 ◽  
pp. 612-615
Author(s):  
Ying Ze Fang ◽  
Xiao Ping Zhou ◽  
Feng Xu

This Four passes processing to the thermal spray aluminum coating on the aluminum alloy surface,based on friction stir processing (FSP). Applications SEM, EDS and micro hardness testing to analysis the coatings that have been processed and haven't been processed. The results show that , after the friction stir processing,dense ultrafine grained aluminum with the sizes less than 200nm is obtain ,and replace original laminated and porous coating . Fusion utilizes between the coating and the substrate, the gap between coating and substrate have disappear. The alloy elements in the substrate diffuse to the coating.


2016 ◽  
Vol 693 ◽  
pp. 616-620
Author(s):  
J.L. Wang ◽  
H.F. Wang ◽  
W.W. Song ◽  
Dun Wen Zuo ◽  
L. Zhu

SiC2 nanoparticles to aluminum alloy surface performance by the friction stir processing (FSP) was studied in this paper, the results showed that the SiC2 nanoparticles to aluminum alloy surface performance by the FSP can improve the microhardness of the aluminum alloy surface, which further showed that by the method of modification aluminum alloy surface had the resistance performances of the wear and corrosion. At the same time, by the sample microstructure pictures can see, when the tool rotation speed was 1000 r/min and the welding speed was 110 mm/min, the obtained grains were tiny and the distribution of SiC2 nanoparticles was the most uniform. When the tool rotation speed was 1000 r/min and the welding speed was 110 mm/min, the obtained grains were coarse and the distribution of SiC2 nanoparticles was the most uneven. This showed that in FSP the main factor of generated higher friction heat was the tool of rotational speed, this was the main factors to ensure grain happen recrystallization. The fastest dissipation heat of the factor was the welding speed, this was the main factor of fine grain.


Sign in / Sign up

Export Citation Format

Share Document