{11(2)over-bar1}-{10(1)over-bar2} double twinning in a Zircaloy-4 alloy during rolling at ambient temperature

作者：Zhang, M.; Luan, B. F.^*; Song, Z. L.; Xin, R. L.^*; Murry, K. L.; Liu, Q.^*

来源：Scripta Materialia, 2016, 122: 77-81.

DOI：10.1016/j.scriptamat.2016.05.003

• Zircaloy-4
• Double twinning
• Electron backscattering diffraction (EBSD)
• Schmid factor
• Local strain accommodation

In this paper, we report the formation of an atypical double twinning sequence in Zircaloy-4 during rolling at room temperature. The grain orientation analysis based on electron backscattering diffraction (EBSD) data reveals that this double twinning mode is of the {11 (2) over bar1}-(10 (1) over bar2} type, namely, the secondary {10 (1) over bar -2} twin generated within the primary {11 (2) over bar1} twin. Based on the combinative analysis of Schmid factor and local strain accommodation, the formation and variant selection mechanism of this double twinning are discussed.

• 出版日期2016-9
• 单位重庆大学