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author:

Wang, Chen (Wang, Chen.) [1] (Scholars:王晨) | Zheng, Hui (Zheng, Hui.) [2] | Ding, Hao (Ding, Hao.) [3] | Hu, Xiaocao (Hu, Xiaocao.) [4] | Hadjipanayis, George C. (Hadjipanayis, George C..) [5] | Wang, Bingshu (Wang, Bingshu.) [6] (Scholars:汪炳叔) | Chen, Junfeng (Chen, Junfeng.) [7] (Scholars:陈俊锋) | Cui, Xigui (Cui, Xigui.) [8]

Indexed by:

CPCI-S EI Scopus SCIE

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 degrees C for the Fe78Co11Mo11 alloy to 640 degrees C for the Fe74Co11Mo11B4 alloy. In the Fe78Co11Mo11 alloy, a cotton-shaped (Fe, Co)(7)Mo-6 precipitate is observed inside the grains of the matrix phase. In the Fe74Co11Mo11B4 alloy, in addition to the (Fe, Co)(7)Mo-6 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 (M-r = 60.4 Am-2/kg, H-i(c) = 20.8 kA/m) compared to those of the Fe78Co11Mo11 sample (M-r = 56.5 Am-2/kg, H-i(c) = 17.3 kA/m). Furthermore, the Fe74Co11Mo11B4 sample shows better antioxidant ability than the Fe78Co11Mo11 sample, especially when the temperature exceeds 400 degrees C. (C) 2018 Elsevier B.V. All rights reserved.

Keyword:

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

Community:

  • [ 1 ] [Wang, Chen]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Zheng, Hui]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Ding, Hao]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 4 ] [Wang, Bingshu]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 5 ] [Chen, Junfeng]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 6 ] [Hadjipanayis, George C.]Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA
  • [ 7 ] [Hu, Xiaocao]Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA
  • [ 8 ] [Cui, Xigui]Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Peoples R China

Reprint 's Address:

  • 王晨

    [Wang, Chen]Fuzhou Univ, Coll Mat Sci & Engn, 2 Xue Yuan Rd, Fuzhou 350116, Fujian, Peoples R 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 Discipline: MATERIALS SCIENCE;

ESI HC Threshold:284

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 4

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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