Influence of quenching rate and composition on optimal annealing temperature of Nd-Fe-B based nanocrystalline hard magnetic alloys

被引：0

作者：

Huyen, N. T. T. ^{[1
,2
]}

Yen, N. H. ^{[1
]}

Thanh, P. T. ^{[1
]}

Huu, D. T. ^{[3
]}

Thuy, D. M. ^{[4
]}

Thuy, N. M. ^{[5
]}

Dan, N. H. ^{[1
]}

机构：

[1] Inst Mat Sci Agh, Hanoi, Vietnam

[2] Quang Ninh Univ Ind, Dong Trieu, Quang Ninh, Vietnam

[3] Hanoi Univ Sci & Technol, Hanoi, Vietnam

[4] Qui Nhon Univ, Quy Nhon, Vietnam

[5] Hanoi Natl Univ Educ, Hanoi, Vietnam

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2012年 / 28卷 / 08期

关键词：

Hard magnetic material; Nanocrystalline alloy; Nanocomposite; Exchange spring magnet; Metallic composite; Rapidly quenched method; NB ADDITION; MICROSTRUCTURE; SUBSTITUTION; CO;

D O I：

10.1179/1743284712Y.0000000035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A number of Nd-Fe-B based nanocrystalline hard magnetic alloys such as Nd4-xPrxFe78B18 (x=0, 2 and 4), (Nd0.5Pr0.5)(x)Nb1.5Fe88.5-xB10 (x=6, 8, 10 and 12), Nd10.5-xCoxNb3Fe80.5B6 (x=0, 2, 4 and 6), Nd10.5NbxFe83.5-xB6 (x=1.5 and 3) were prepared by melt spinning and subsequently annealing. The relationships between quenching rate, composition and the annealing temperature of the alloys were investigated systematically to obtain optimal fabrication conditions. For each quenching rate and each composition, an optimal annealing temperature could be found in a range from 650 to 750 degrees C so that the nanocrystalline magnetic phases are formed optimally leading to an enhancement of the coercivity and maximum energy product of the alloys. The variation trend of influence of quenching rate and composition on the optimal annealing temperature of the alloys is presented and discussed.

引用

页码：948 / 952

页数：5

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