Investigation of microstructure of Nd-Fe-B peritectic alloys under directional solidification

Qian He; Lin Liu; Guang Rong Zou; Shuang Ming Li; Hou Bu Li; Heng Zhi Fu

Investigation of microstructure of Nd-Fe-B peritectic alloys under directional solidification

Qian He, Lin Liu, Guang Rong Zou, Shuang Ming Li, Hou Bu Li, Heng Zhi Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The solidification microstructure of Nd_xFe_100-1.5xB_0.5x (x=10.8%, 11.76%, 13.5%) alloys are researched at the withdraw velocity ranging from 5 μm/s to 500 μm/s under directional solidification. The results indicate that the final microstructure of three compositions alloys is all primary α-Fe phase, Nd₂Fe₄B phase and Nd-rich phase. With increase of withdraw velocity, primary dendrite arm spacing of primary α-Fe phase decreases, the volume fraction of primary α-Fe phase decreases and then increases, Nd₂Fe₁₄B phase increases and then decreases.

Original language	English
Pages (from-to)	17-19+44
Journal	Cailiao Gongcheng/Journal of Materials Engineering
Issue number	6
State	Published - Jun 2005

Keywords

Directional solidification
Microstructure
Nd-Fe-B alloy
Peritectic reaction

Cite this

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title = "Investigation of microstructure of Nd-Fe-B peritectic alloys under directional solidification",

abstract = "The solidification microstructure of NdxFe100-1.5xB0.5x (x=10.8%, 11.76%, 13.5%) alloys are researched at the withdraw velocity ranging from 5 μm/s to 500 μm/s under directional solidification. The results indicate that the final microstructure of three compositions alloys is all primary α-Fe phase, Nd2Fe4B phase and Nd-rich phase. With increase of withdraw velocity, primary dendrite arm spacing of primary α-Fe phase decreases, the volume fraction of primary α-Fe phase decreases and then increases, Nd2Fe14B phase increases and then decreases.",

keywords = "Directional solidification, Microstructure, Nd-Fe-B alloy, Peritectic reaction",

author = "Qian He and Lin Liu and Zou, {Guang Rong} and Li, {Shuang Ming} and Li, {Hou Bu} and Fu, {Heng Zhi}",

year = "2005",

month = jun,

language = "英语",

pages = "17--19+44",

journal = "Cailiao Gongcheng/Journal of Materials Engineering",

issn = "1001-4381",

publisher = "Science Press ",

number = "6",

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TY - JOUR

T1 - Investigation of microstructure of Nd-Fe-B peritectic alloys under directional solidification

AU - He, Qian

AU - Liu, Lin

AU - Zou, Guang Rong

AU - Li, Shuang Ming

AU - Li, Hou Bu

AU - Fu, Heng Zhi

PY - 2005/6

Y1 - 2005/6

N2 - The solidification microstructure of NdxFe100-1.5xB0.5x (x=10.8%, 11.76%, 13.5%) alloys are researched at the withdraw velocity ranging from 5 μm/s to 500 μm/s under directional solidification. The results indicate that the final microstructure of three compositions alloys is all primary α-Fe phase, Nd2Fe4B phase and Nd-rich phase. With increase of withdraw velocity, primary dendrite arm spacing of primary α-Fe phase decreases, the volume fraction of primary α-Fe phase decreases and then increases, Nd2Fe14B phase increases and then decreases.

AB - The solidification microstructure of NdxFe100-1.5xB0.5x (x=10.8%, 11.76%, 13.5%) alloys are researched at the withdraw velocity ranging from 5 μm/s to 500 μm/s under directional solidification. The results indicate that the final microstructure of three compositions alloys is all primary α-Fe phase, Nd2Fe4B phase and Nd-rich phase. With increase of withdraw velocity, primary dendrite arm spacing of primary α-Fe phase decreases, the volume fraction of primary α-Fe phase decreases and then increases, Nd2Fe14B phase increases and then decreases.

KW - Directional solidification

KW - Microstructure

KW - Nd-Fe-B alloy

KW - Peritectic reaction

UR - http://www.scopus.com/inward/record.url?scp=21444441696&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:21444441696

SN - 1001-4381

SP - 17-19+44

JO - Cailiao Gongcheng/Journal of Materials Engineering

JF - Cailiao Gongcheng/Journal of Materials Engineering

IS - 6

ER -

Investigation of microstructure of Nd-Fe-B peritectic alloys under directional solidification

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