Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7990802 | Journal of Alloys and Compounds | 2018 | 20 Pages |
Abstract
The magnetostriction of Fe-Ga alloys is significantly affected by the Ga content, which displays two positive peaks with increasing Ga concentration. This work presents a systematic structural investigation of rapidly-cooled Fe-Ga alloys by the synchrotron-based high-energy x-ray diffraction. Ga-rich clusters are evidenced for the alloys beyond the first magnetostriction peak, which is identified by the anomalous peak broadening for the (200) fundamental reflection and a shrink of lattice parameter. The generation of Ga-rich clusters in A2 matrix results in the sudden decrease of magnetostriction after the first magnetostriction peak. These findings are important for designing high-performance Fe-Ga magnetostrictive alloys by structural tuning.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Zhihua Nie, Zilong Wang, Yanbin Liang, Daoyong Cong, Gaoqiang Li, Cheng Zhu, Chengwen Tan, Xiaodong Yu, Yang Ren, Yandong Wang,