Solidification microstructure selection of the peritectic Nd-Fe-B alloys

Hong Zhong; Shuangming Li; Haiyan Lü; Lin Liu; Guangrong Zou; Hengzhi Fu

doi:10.1007/s11433-007-0041-y

Solidification microstructure selection of the peritectic Nd-Fe-B alloys

Hong Zhong
, Shuangming Li
, Haiyan Lü
, Lin Liu
, Guangrong Zou
, Hengzhi Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

5 Scopus citations

Abstract

Bridgman directional solidification and laser remelting experiments were carried out on Nd_11.76Fe_82.36B_5.88 and Nd _13.5Fe_79.75B_6.75 alloys. Microstructure evolutions along with solidification parameters (temperature gradient G, growth velocity V and initial alloy composition C ₀) were investigated. A solidification microstructure selection map was established, based on the consideration of solidification characteristics of peritectic T₁ phase. In Bridgman directional solidification experiments, with the increasing growth velocities, the morphology of T₁ phase changed from plane front or faceted plane front to dendrites. In laser remelting experiments, a transition from primary γ-Fe dendrites to T₁ dendrites was found. Theoretical predictions are in good agreement with experimental results.

Original language	English
Pages (from-to)	432-441
Number of pages	10
Journal	Science in China, Series G: Physics, Mechanics and Astronomy
Volume	50
Issue number	4
DOIs	https://doi.org/10.1007/s11433-007-0041-y
State	Published - Aug 2007

Keywords

Directional solidification
Microstructure selection
Peritectic alloy

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10.1007/s11433-007-0041-y

Cite this

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title = "Solidification microstructure selection of the peritectic Nd-Fe-B alloys",

abstract = "Bridgman directional solidification and laser remelting experiments were carried out on Nd11.76Fe82.36B5.88 and Nd 13.5Fe79.75B6.75 alloys. Microstructure evolutions along with solidification parameters (temperature gradient G, growth velocity V and initial alloy composition C 0) were investigated. A solidification microstructure selection map was established, based on the consideration of solidification characteristics of peritectic T1 phase. In Bridgman directional solidification experiments, with the increasing growth velocities, the morphology of T1 phase changed from plane front or faceted plane front to dendrites. In laser remelting experiments, a transition from primary γ-Fe dendrites to T1 dendrites was found. Theoretical predictions are in good agreement with experimental results.",

keywords = "Directional solidification, Microstructure selection, Peritectic alloy",

author = "Hong Zhong and Shuangming Li and Haiyan L{\"u} and Lin Liu and Guangrong Zou and Hengzhi Fu",

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month = aug,

doi = "10.1007/s11433-007-0041-y",

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TY - JOUR

T1 - Solidification microstructure selection of the peritectic Nd-Fe-B alloys

AU - Zhong, Hong

AU - Li, Shuangming

AU - Lü, Haiyan

AU - Liu, Lin

AU - Zou, Guangrong

AU - Fu, Hengzhi

PY - 2007/8

Y1 - 2007/8

N2 - Bridgman directional solidification and laser remelting experiments were carried out on Nd11.76Fe82.36B5.88 and Nd 13.5Fe79.75B6.75 alloys. Microstructure evolutions along with solidification parameters (temperature gradient G, growth velocity V and initial alloy composition C 0) were investigated. A solidification microstructure selection map was established, based on the consideration of solidification characteristics of peritectic T1 phase. In Bridgman directional solidification experiments, with the increasing growth velocities, the morphology of T1 phase changed from plane front or faceted plane front to dendrites. In laser remelting experiments, a transition from primary γ-Fe dendrites to T1 dendrites was found. Theoretical predictions are in good agreement with experimental results.

AB - Bridgman directional solidification and laser remelting experiments were carried out on Nd11.76Fe82.36B5.88 and Nd 13.5Fe79.75B6.75 alloys. Microstructure evolutions along with solidification parameters (temperature gradient G, growth velocity V and initial alloy composition C 0) were investigated. A solidification microstructure selection map was established, based on the consideration of solidification characteristics of peritectic T1 phase. In Bridgman directional solidification experiments, with the increasing growth velocities, the morphology of T1 phase changed from plane front or faceted plane front to dendrites. In laser remelting experiments, a transition from primary γ-Fe dendrites to T1 dendrites was found. Theoretical predictions are in good agreement with experimental results.

KW - Directional solidification

KW - Microstructure selection

KW - Peritectic alloy

UR - https://www.scopus.com/pages/publications/44749085597

U2 - 10.1007/s11433-007-0041-y

DO - 10.1007/s11433-007-0041-y

M3 - 文章

AN - SCOPUS:44749085597

SN - 1672-1799

VL - 50

SP - 432

EP - 441

JO - Science in China, Series G: Physics, Mechanics and Astronomy

JF - Science in China, Series G: Physics, Mechanics and Astronomy

IS - 4

ER -

Solidification microstructure selection of the peritectic Nd-Fe-B alloys

Abstract

Keywords

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