Journal
INTERNATIONAL JOURNAL OF PLASTICITY
Volume 27, Issue 12, Pages 1916-1935Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijplas.2011.02.007
Keywords
Magnesium; Texture; Crystal plasticity; Finite element analysis; Twinning
Funding
- Ministry of Education, Culture, Sports, Science and Technology of Japan (KAKENHI) [21760082]
- Kumamoto Prefecture Collaboration of Regional Entities for the Advancement of Technological Excellence from Japan Science and Technology Agency
- Grants-in-Aid for Scientific Research [21760082] Funding Source: KAKEN
Ask authors/readers for more resources
The texture development mechanism during the extrusion of magnesium alloy is investigated by experimental observation and numerical analysis. First, we perform a finite element analysis of a full extrusion process using a phenomenological constitutive equation, and it is confirmed that the loading condition of the extrusion process near the central axis of the billet is approximated by an equi-biaxial compression mode. Then, the equi-biaxial compression problem is adopted as a simplified boundary value problem to be solved using a crystal plasticity model to clarify the detailed texture development mechanism during the extrusion process. The crystal plasticity analysis of equi-biaxial compression successfully reproduces the texture development from an initial random texture to the final experimentally observed texture. The effects of the deformation modes (i.e. slip and twinning systems) implemented in the calculation and the reference stress ratio of basal to nonbasal slip systems on texture development are studied in detail. Finally, the mechanism of texture development during the extrusion process is discussed in terms of the lattice rotation caused by the activated slip systems. (C) 2011 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available