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

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

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 t...

Full description

Bibliographic Details
Main Authors: Wei Kun Xia, Wang Sheng Long, Wei Wei, Du Qing Bo, Alexandrov Igor V., Hu Jing
Format: Article
Language:English
Published: De Gruyter 2018-11-01
Series:Open Engineering
Subjects:
cu-7%al alloy
cryo-ecap
annealing
microstructure
mechanical properties
Online Access:https://doi.org/10.1515/eng-2018-0048
Description
Summary: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.
ISSN:2391-5439

Similar Items