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author:

Wang, C. (Wang, C..) [1] | Zheng, H. (Zheng, H..) [2] | Ding, H. (Ding, H..) [3] | Hu, X. (Hu, X..) [4] | Hadjipanayis, G.C. (Hadjipanayis, G.C..) [5] | Wang, B. (Wang, B..) [6] | Chen, J. (Chen, J..) [7] | Cui, X. (Cui, X..) [8]

Indexed by:

Scopus

Abstract:

The microstructure, precipitation hardening and magnetic properties of melt-spun Fe78Co11Mo11 and Fe74Co11Mo11B4 alloys were studied. It is shown that B addition increases the precipitation reaction temperature of the supersaturated matrix from 605 °C for the Fe78Co11Mo11 alloy to 640 °C for the Fe74Co11Mo11B4 alloy. In the Fe78Co11Mo11 alloy, a cotton-shaped (Fe,Co)7Mo6 precipitate is observed inside the grains of the matrix phase. In the Fe74Co11Mo11B4 alloy, in addition to the (Fe,Co)7Mo6 phase, spherical MoB2 precipitates are also observed. Compared to the Fe78Co11Mo11 sample, the Fe74Co11Mo11B4 sample exhibits a finer and more homogeneous microstructure with more equiaxed grains. This finer microstructure explains the enhanced hard magnetic properties in the Fe74Co11Mo11B4 sample (Mr = 60.4 A m2/kg, iHc = 20.8 kA/m) compared to those of the Fe78Co11Mo11 sample (Mr = 56.5 A m2/kg, iHc = 17.3 kA/m). Furthermore, the Fe74Co11Mo11B4 sample shows better antioxidant ability than the Fe78Co11Mo11 sample, especially when the temperature exceeds 400 °C. © 2018 Elsevier B.V.

Keyword:

Antioxidant ability; Fe-Co-Mo alloy; Magnetic materials; Melt-spinning; Precipitation

Community:

  • [ 1 ] [Wang, C.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Zheng, H.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Ding, H.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Hu, X.]Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, United States
  • [ 5 ] [Hadjipanayis, G.C.]Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, United States
  • [ 6 ] [Wang, B.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Chen, J.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 8 ] [Cui, X.]School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, China

Reprint 's Address:

  • [Wang, C.]College of Materials Science and Engineering, Fuzhou University, 2 Xue Yuan Road, University Town, China

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Source :

Journal of Alloys and Compounds

ISSN: 0925-8388

Year: 2018

Volume: 766

Page: 649-655

4 . 1 7 5

JCR@2018

5 . 8 0 0

JCR@2023

ESI HC Threshold:284

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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