Grain refinement in highly undercooled solidification of Ni85Cu15 alloy melt: Direct evidence for recrystallization mechanism

T. Zhang; F. Liu; H. F. Wang; G. C. Yang

doi:10.1016/j.scriptamat.2010.03.006

Grain refinement in highly undercooled solidification of Ni₈₅Cu₁₅ alloy melt: Direct evidence for recrystallization mechanism

T. Zhang, F. Liu, H. F. Wang, G. C. Yang

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

64 Scopus citations

Abstract

The grain refinement occurring upon rapid solidification of undercooled Ni₈₅Cu₁₅ alloy melts has been studied. Applying theoretical calculations for stress accumulation in dendritic skeletons, the grain refinement occurring with ΔT >∼180 K is ascribed to plastic deformation of dendrites and subsequent recrystallization. This has been evidenced directly using high-resolution transmission electron microscopy observation of the as-solidified granular crystals.

Original language	English
Pages (from-to)	43-46
Number of pages	4
Journal	Scripta Materialia
Volume	63
Issue number	1
DOIs	https://doi.org/10.1016/j.scriptamat.2010.03.006
State	Published - Jul 2010

Keywords

Grain refinement
HRTEM
Rapid solidification
Recalescence
Undercooling

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10.1016/j.scriptamat.2010.03.006

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abstract = "The grain refinement occurring upon rapid solidification of undercooled Ni85Cu15 alloy melts has been studied. Applying theoretical calculations for stress accumulation in dendritic skeletons, the grain refinement occurring with ΔT >∼180 K is ascribed to plastic deformation of dendrites and subsequent recrystallization. This has been evidenced directly using high-resolution transmission electron microscopy observation of the as-solidified granular crystals.",

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AU - Liu, F.

AU - Wang, H. F.

AU - Yang, G. C.

PY - 2010/7

Y1 - 2010/7

N2 - The grain refinement occurring upon rapid solidification of undercooled Ni85Cu15 alloy melts has been studied. Applying theoretical calculations for stress accumulation in dendritic skeletons, the grain refinement occurring with ΔT >∼180 K is ascribed to plastic deformation of dendrites and subsequent recrystallization. This has been evidenced directly using high-resolution transmission electron microscopy observation of the as-solidified granular crystals.

AB - The grain refinement occurring upon rapid solidification of undercooled Ni85Cu15 alloy melts has been studied. Applying theoretical calculations for stress accumulation in dendritic skeletons, the grain refinement occurring with ΔT >∼180 K is ascribed to plastic deformation of dendrites and subsequent recrystallization. This has been evidenced directly using high-resolution transmission electron microscopy observation of the as-solidified granular crystals.

KW - Grain refinement

KW - HRTEM

KW - Rapid solidification

KW - Recalescence

KW - Undercooling

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DO - 10.1016/j.scriptamat.2010.03.006

M3 - 文章

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SN - 1359-6462

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ER -

Grain refinement in highly undercooled solidification of Ni₈₅Cu₁₅ alloy melt: Direct evidence for recrystallization mechanism

Abstract

Keywords

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