Strain energy release maximization model for recrystallization textures

Abstract

In 1995, the author advanced a model for the evolution of recrystallization texture. In the model the absolute maximum internal stress direction due to dislocations generated during deformation or fabrication in the fabricated material is aligned with the minimum Young's modulus direction in recrystallized gains, whereby the energy release during recrystallization can be maximized. This comes from the fact that material concerned does not change macroscopically its shape and volume during recrystallization, and so the recrystallization is a displacement controlled process. This strain energy release maximization model originates from the presumption that the stored energy due to dislocations is the major driving force for the recrystallization. The absolute maximum internal stress direction may be obtained from the operating slip systems, which are related to the deformation mode and texture. If one slip system is activated, the absolute maximum normal stress direction is parallel to the slip direction, or the Burgers vector direction. If more than one slip system is activated, the absolute maximum normal stress direction can be determined by the vector sum of related slip directions, taking their contribution to slip into account. This paper discusses recrystallization textures of plastically deformed and electrodeposited metals, based on the model. A brief comment was made also on the growth textures of axisymmetrically deformed copper and silver and electrodeposited silver and Fe-Ni alloy.

Texture evolution during processing and post-processing of maraging steel fabricated by laser powder bed fusion

“…The transition in texture components during recrystallization have been explained using the strain energy release maximization (SERM) theory 48 , 53 , 54 . Adopting SERM theory to explain the near A/brass to goss texture component transition during recrystallization, when (110)〈1 0〉 are compressed (similar to the residual stresses developed during processing) along [110] direction (near A/brass orientation), the active slip systems can be calculated as (111)[0 1] and ( 1)[101] 45 , 50 , 51 .…”

The effect of precipitation on the evolution of recrystallization textures in an AA 8011 aluminum alloy sheet

“…This implies that the copper orientation is more responsible for the cube orientation than other orientations. Lee [21][22][23] explained the transformation of the C-orientation into the cube recrystallization texture by the strain energy release maximization model. When annealed at 500 o C for 1h, the specimen had the strong cube -weak P texture as shown in Fig.…”

Relationship between Deformation and Recrystallization Texture in Copper Wire

“…The deformation texture <111>+<100> of FCC metals developed in the drawing of the wire transforms into <100>-component during the recrystallization. In addition, this process occurs independently of relative intensity redistribution of <111> and <100>-components in deformed state [2]. The earlier studies [3] demonstrated that dominate deformation texture components developed to <100>, <111>, <211> with increasing in intensity of <100>-component during annealing of drawn pure FCC metal (> 99.94 %).…”