We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effect of Co and Gd Additions on Microstructures and Properties of FeSiBAlNi High Entropy Alloys.
- Authors
Zhai, Sicheng; Wang, Wen; Xu, Juan; Xu, Shuai; Zhang, Zitang; Wang, Yan
- Abstract
FeSiBAlNi (W5), FeSiBAlNiCo (W6-Co), and FeSiBAlNiGd (W6-Gd) high entropy alloys (HEAs) were prepared using a copper-mold casting method. Effects of Co and Gd additions combined with subsequent annealing on microstructures and magnetism were investigated. The as-cast W5 consists of BCC solid solution and FeSi-rich phase. The Gd addition induces the formation of body-centered cubic (BCC) and face-centered cubic (FCC) solid solutions for W6-Gd HEAs. Whereas, the as-cast W6-Co is composed of the FeSi-rich phase. During annealing, no new phases arise in the W6-Co HEA, indicating a good phase stability. The as-cast W5 has the highest hardness (1210 HV), which is mainly attributed to the strengthening effect of FeSi-rich phase evenly distributed in the solid solution matrix. The tested FeSiBAlNi-based HEAs possess soft magnetism. The saturated magnetization and remanence ratio of W6-Gd are distinctly enhanced from 10.93 emu/g to 62.78 emu/g and from 1.44% to 15.50% after the annealing treatment, respectively. The good magnetism of the as-annealed W6-Gd can be ascribed to the formation of Gd-oxides.
- Subjects
IRON-aluminum alloys; CASTING (Manufacturing process); GADOLINIUM compounds; ANNEALING of metals; MICROSTRUCTURE; MAGNETISM
- Publication
Entropy, 2018, Vol 20, Issue 7, p487
- ISSN
1099-4300
- Publication type
Article
- DOI
10.3390/e20070487