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

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

64 引用（Scopus）

摘要

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.

源语言	英语
页（从-至）	43-46
页数	4
期刊	Scripta Materialia
卷	63
期	1
DOI	https://doi.org/10.1016/j.scriptamat.2010.03.006
出版状态	已出版 - 7月 2010

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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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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.

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KW - HRTEM

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KW - Recalescence

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

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