In situ studies on radiation tolerance of nanotwinned Cu. (1st June 2016)

• Record Type: Journal Article
• Authors: Chen, Y.; Li, J.; Yu, K.Y.; Wang, H.; Kirk, M.A.; Li, M.; Zhang, X.
• Is Part Of: Acta materialia. Volume 111(2016)
• Page Start: 148
• Page End: 156
• Publication Date: 2016-06-01
• Subjects: Nanotwins -- Radiation damage -- In situ -- Defect kinetics; Materials -- Periodicals; Materials science -- Periodicals; Materials -- Mechanical properties -- Periodicals; Metallurgy -- Periodicals; Chemistry, Inorganic -- Periodicals; 620.112
• DOI: 10.1016/j.actamat.2016.03.039
• Languages: English
• ISSNs: 1359-6454

Abstract

Abstract: We investigate the radiation response of nanotwinned Cu by using in situ Kr ion irradiation technique inside a transmission electron microscope. In comparison with coarse grained Cu, nanotwinned Cu exhibits smaller defect size and lower defect density. In situ studies also show that twin boundaries effectively remove a large number of defect clusters. The life time of defect clusters in nanotwinned Cu is very different from that in its coarse grained counterpart. This study provides further evidence on twin-boundary enabled radiation tolerance in nanotwinned metals. Graphical abstract: