Annealing behavior of aluminium deformed by equal channel angular pressing

作者：Cao WQ^*; Godfrey A; Liu W; Liu Q

来源：Materials Letters, 2003, 57(24-25): 3767-3774.

DOI：10.1016/S0167-577X(03)00176-9

• ECAE
• ECAP
• EBSP
• EBSD
• recrystallisation
• continuous coarsening

Samples of commercial purity aluminum (99.5%) deformed by equal channel angular extrusion (ECAE) to accumulated strains of between 1 and 10 were annealed at different temperatures for a time of 2 h. The microstructural evolutions of both the deformed and the annealed materials were studied by electron back-scattered pattern (EBSP) analysis. At high strains the average cell size is only slowly refined, whilst the average cell boundary misorientation increases more quickly. Examination of the subgrain morphology during annealing suggested that whilst for low strains a recrystallisation occurred in a discontinuous manner, at high strains the samples showed traits of both discontinuous and continuous annealing behavior.

• 出版日期2003-8
• 单位清华大学