Nanoscale precipitates in magnetostrictive Fe1-xGax alloys for 0.1 < x < 0.23

作者：Bhattacharyya Somnath^*; Jinschek J R; Li J F; Viehland D

来源：Journal of Alloys and Compounds, 2010, 501(1): 148-153.

DOI：10.1016/j.jallcom.2010.04.063

• Galfenol alloys
• Magnetostrictive alloys
• High resolution transmission microscopy
• Line defects

We report high resolution transmission electron microscopy (HRTEM) investigations of magnetostrictive Fe1-xGax alloys. Our findings show the presence of nanometer-sized (<2 nm) inclusions of a DO3-like structure within an A2 matrix phase for a composition of 0.1 < x < 0.23, whose interphase interfaces are oriented along [1 1 0]. The density of the nano-precipitates increased with increasing Ga content, however the size of the nano-precipitates was nearly independent of x.

• 出版日期2010-7-2
• 单位Virginia Tech; 美国弗吉尼亚理工大学(Virginia Tech)