MICROSTRUCTURE AND TEXTURE DEVELOPMENT oF MGH754 ALLOY DUR1NG SECONDARY RECRYSTALLIZATION
MGH754合金挤压棒材的二次再结晶与织构

Microstructure and texture changes during secondary recrystallization of MGH754 alloy were studied. The results show that the as-extruded alloy has a fine equiaxed grain structure and weak texture. After secondary recrystallization annealing, coarse elon-gated grain structure parallel to the extrution dircction and strong texture components existed. The content of { 110} <001 > and { 100} <001> texture components increased, while {110} <111>, {110} <112> and { 112} <111> texture components decreased with the in-creasing of annealing time. The longitudinal direction of MGH754 bar is mainly <001> orientation.