Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8011956 | Transactions of Nonferrous Metals Society of China | 2017 | 8 Pages |
Abstract
The effect of strain and drawing temperature on the evolution of microstructure and fiber textures of aluminum wires drawn at room temperature and cryogenic temperature was investigated by TEM and EBSD observations. The results show that low angle boundaries frequency increases and high angle boundaries frequency decreases with strain increasing when the strain is low. At high strain, most of grain and dislocation boundaries are parallel to the drawn direction and low angle boundaries frequency decreases and high angle boundaries frequency increases with strain increasing. The decrease of deformation temperature leads to microstructure finer and low angle boundaries frequency increasing. Texture analysis indicates that volume fraction of complex texture component decreases with strain increasing and a mixture of ã111ã and ã100ã fiber texture forms at high strain. ã111ã is stable at low strains but ã100ã becomes stable at high strain. The decrease of temperature can enhance the stability of ã111ã orientation at high strain.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Xiao-guang MA, Jian CHEN, Yang YANG, Lei LI, Zheng CHEN, Wen YAN,