Microstructure and Mechanical properties of Cu-7wt.% Al Alloy produced by Equal Channel Angular pressing with different routes

2018 ◽  
Vol 5 (2) ◽  
pp. 8241-8248
Author(s):  
M. Chinababu ◽  
Kondaiah Gudimetla ◽  
K. Sivaprasad ◽  
B. Ravisankar
Keyword(s):  
Mechanical Properties ◽  
Equal Channel Angular Pressing ◽  
Al Alloy ◽  
Angular Pressing ◽  
Microstructure And Mechanical Properties

scholarly journals Annealing effect on microstructure and mechanical properties of Cu-Al alloy subjected to Cryo-ECAP

2018 ◽  
Vol 8 (1) ◽  
pp. 377-381
Author(s):  
Kun Xia Wei ◽  
Sheng Long Wang ◽  
Wei Wei ◽  
Qing Bo Du ◽  
Igor V. Alexandrov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cryogenic Temperature ◽  
Uniform Elongation ◽  
Annealing Effect ◽  
Al Alloy ◽  
Angular Pressing ◽  
Microstructure And Mechanical Properties ◽  
Annealing Twins ◽  
Before And After ◽  
Liquid Nitrogen Cooling

Abstract Cu-7%Al alloy subjected to equal channel angular pressing at cryogenic temperature with liquid nitrogen cooling (Cryo-ECAP)was treated by annealing. The microstructure and mechanical properties of Cu-7%Al alloy before and after annealing were investigated. It shows that a large number of annealing twins formed in Cu-7%Al alloy subjected to Cryo-ECAP. After 300∘C and 0.5 h annealing in Cu-7%Al alloy processed by Cryo-ECAP, tensile strength and uniform elongation was increased up to 644 MPa and 7.6% respectively. The enhanced mechanical properties of Cu-7%Al alloy after annealing is attributed to the high density nanoscale twins.

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