EBSD Coupled to SEM <i>In Situ</i> Annealing as a Tool to Identify Recrystallization Mechanisms - Application to Zr and Ta Alloys

Abstract

A heating stage as been developed to performin-situannealing in a SEM equipped with an EBSD system in order to study recrystallization mechanisms. High temperature treatments could then be performed inside the SEM, up to 1180°C and with high heating-and cooling-rates (~100°C.s-1). Samples were cooled down to room temperature to perform EBSD orientation mapping in between successive short-duration heat-treatments. Microstructure evolution snapshots obtained this way are presented in this paper to show recrystallization in Zircaloy4 and in pure tantalum.