Comparison of tensile properties between nanotwinned and nanograined CuAl alloys. (May 2018)

• Record Type: Journal Article
• Authors: Wang, J.J.; Tao, N.R.
• Is Part Of: Scripta materialia. Number 149(2018)
• Page Start: 16
• Page End: 20
• Publication Date: 2018-05
• Subjects: Nanograin -- Nanotwin -- Tensile -- Strength -- Ductility; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.01.031
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Both nanotwinned and nanograined samples were prepared in a CuAl alloy by means of plastic deformation. Tensile tests showed that the nanotwinned sample exhibits a high yield strength of ~357 MPa and a considerable uniform elongation of 18% while the nanograined sample has ultra-high strength of ~758 MPa with a very limited uniform elongation of 1.4%. The lower yield strength and higher ductility in the nanotwinned sample were discussed based on its deformation mechanism. Graphical abstract: Unlabelled Image