The formation mechanism of {11(2)over-bar1}<(11)over-bar26>, primary paired {10(1)over-bar2} <(1)over-bar011> and secondary twins in Zircaloy-4 alloy with coarse α lamellae

The formation mechanism of {11 (2) over bar1}<<(1)over bar>(1) over bar 26> twins (TT2), primary paired {10 (1) over bar2}<<(1)over bar>011> twins (TT1) and secondary twins in Zircaloy-4 alloy with coarse alpha lamellae was studied using EBSD technique. The formation mechanism of TT2, primary paired TT1 and secondary twins was discussed and a model was finally proposed.

Automated summary

The EBSD technique was used to study the formation mechanism of twinning in Zircaloy-4 alloy with coarse alpha lamellae. The mechanisms of primary paired twins and secondary twins were discussed, leading to the proposal of a model.