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ZHONG Zhenchen, ZENG Qingwen, JIANG Qingzheng, SAJJAD Ur Rehman, LEI Weikai, HE Lunke. Effect of Y substitution on the microstructure and magnetic properties of Pr-Nd-Fe-B alloy[J]. Nonferrous Metals Science and Engineering, 2019, 10(3): 99-103. DOI: 10.13264/j.cnki.ysjskx.2019.03.017
Citation: ZHONG Zhenchen, ZENG Qingwen, JIANG Qingzheng, SAJJAD Ur Rehman, LEI Weikai, HE Lunke. Effect of Y substitution on the microstructure and magnetic properties of Pr-Nd-Fe-B alloy[J]. Nonferrous Metals Science and Engineering, 2019, 10(3): 99-103. DOI: 10.13264/j.cnki.ysjskx.2019.03.017
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Effect of Y substitution on the microstructure and magnetic properties of Pr-Nd-Fe-B alloy

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  • The effects of Y substitution on the phase composition, magnetic properties, intergrain exchange coupling and microstructure of (Pr0.25Nd0.75)1-xYx13.9Fe80.1B6 alloy fabricated by melt spinning were studied. It is found that a proper amount of Y substitution can inhibit the formation of Fe3B phase and improve the thermal stability of coercivity. When 30 % of Pr and Nd is replaced by Y, the Curie temperature of the alloy only slightly decreases from 307 ℃ to 302 ℃. The substitution of Y can refine the grain size and help to improve the microstructure of the alloy. In addition, Y substitution can also enhance the exchange coupling interaction between main phase grains.
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