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Featured researches published by N. Liu.


Journal of Materials Science & Technology | 2012

Liquid-phase Separation in Rapid Solidification of Undercooled Fe-Co-Cu Melts

N. Liu; Feng Liu; Zheng Chen; Gencang Yang; Changlin Yang; Yaohe Zhou

The homogeneous liquid was separated into two phases, (Fe, Co)-rich L1 and Cu-rich L2, once the melt was undercooled below a liquid-phase separation temperature T sep . If the duration from T sep to T s1 (solidification temperature of L1 phase), termed the liquid-phase separation interval Δ t , exceeded a critical value, an eggtype structure was observed. By utilizing differential thermal analyses (DTA), the solidification process of the undercooled Fe-Co-Cu alloys was studied. Additionally, an immiscible boundary was obtained, which was a convex parabola with a symmetrical axis of x Cu =0.52. Depending on the relative amounts of L1 and L2, the minor phase was nucleated firstly to form liquid droplets and separated from the original liquids at the beginning of liquid-phase separation.


Physica B-condensed Matter | 2007

Grain refinement of undercooled single-phase Fe70Co30 alloys

N. Liu; Feng Liu; Gencang Yang; Y.Z. Chen; Da Chen; Changlin Yang; Yaohe Zhou


Scripta Materialia | 2007

Suppression of peritectic reaction in the undercooled peritectic Fe-Ni melts

Y.Z. Chen; Feng Liu; G.C. Yang; N. Liu; Changlin Yang; Y.H. Zhou


Journal of Alloys and Compounds | 2007

Microstructure and phase selection in bulk undercooled Fe–B eutectic alloys

Changlin Yang; Feng Liu; Gencang Yang; Y.Z. Chen; N. Liu; Yaohe Zhou


Journal of Crystal Growth | 2005

Microstructure evolution in undercooled Fe-7.5 at% Ni alloys

Y.Z. Chen; G.C. Yang; F. Liu; N. Liu; H. Xie; Y.H. Zhou


Materials Characterization | 2008

Grain refinement of Fe75Ni25 alloys at low undercooling

Yi Chen; F. Liu; G.C. Yang; N. Liu; C.L. Yang; H. Xie; Y.H. Zhou


Physica B-condensed Matter | 2006

Metastable phase formation in eutectic solidification of highly undercooled Fe83B17 alloy melt

Changlin Yang; Gencang Yang; Feng Liu; Y.Z. Chen; N. Liu; Da Chen; Yaohe Zhou


Journal of Alloys and Compounds | 2008

Dendrite growth in undercooled Fe-Co melt

N. Liu; F. Liu; G.C. Yang; Y.Z. Chen; C.L. Yang; Jinghui Li; Y.H. Zhou


Materials Characterization | 2006

Grain refinement and grain coarsening of undercooled Fe–Co alloy

N. Liu; Gencang Yang; Feng Liu; Y.Z. Chen; Changlin Yang; Yiping Lu; Da Chen; Yaohe Zhou


Physica B-condensed Matter | 2011

Microstructure evolution of undercooled Fe–Co–Cu alloys

N. Liu; G.C. Yang; Wei Yang; F. Liu; C.L. Yang; Y.H. Zhou

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Y.Z. Chen

Northwestern Polytechnical University

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G.C. Yang

Northwestern Polytechnical University

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Y.H. Zhou

Northwestern Polytechnical University

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Feng Liu

Northwestern Polytechnical University

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Changlin Yang

Northwestern Polytechnical University

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F. Liu

Northwestern Polytechnical University

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C.L. Yang

Northwestern Polytechnical University

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Gencang Yang

Northwestern Polytechnical University

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Yaohe Zhou

Northwestern Polytechnical University

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H. Xie

Northwestern Polytechnical University

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