Strengthening high-stacking-fault-energy metals via parallelogram nanotwins. (November 2015)

• Record Type: Journal Article
• Authors: Zhang, Yuefei; Wang, Jin; Shan, Haiquan; Zhao, Kejie
• Is Part Of: Scripta materialia. Volume 108(2015)
• Page Start: 35
• Page End: 39
• Publication Date: 2015-11
• Subjects: Nanotwins -- Ni -- Twin patterns -- Electrodeposition -- Parallelogram; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.05.039
• Languages: English
• ISSNs: 1359-6462

Abstract

Graphical abstract: Abstract: Twins readily form during growth or deformation in metals of low stacking-fault energy. Fabrication of high-density growth nanotwins in high stacking-fault energy materials is technically challenging. We synthesize nanotwinned Ni foils with controlled twin patterns – pulsed electrodeposition produces conventional parallel nanotwins while direct current electrodeposition generates a new pattern of nanotwins in the parallelogram form. The parallelogram nanotwins confine dislocation motion in the cage of twin boundaries and lead to a superior strengthening effect in Ni.