Morphological determination of forced shear flow rate during directional solidification of succinonitrile-1%salol alloy

J. Y. Wang; H. Xing; W. Zhai; K. X. Jin; C. L. Chen

doi:10.1016/j.matlet.2012.01.007

Morphological determination of forced shear flow rate during directional solidification of succinonitrile-1%salol alloy

J. Y. Wang, H. Xing, W. Zhai, K. X. Jin, C. L. Chen

School of Physical Science and Technology

Northwestern Polytechnical University Xian

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

2 Scopus citations

Abstract

Interface morphologies during directional solidification of SCN based alloy in the presence of shear flow are investigated. Microstructure map of wide pulling rate and shear flow rate is summarized. With pulling rate increasing, there exist three distinct regions in the map: planar, transitional and dendritic regions. It is shown that shear flow elevates the critical velocities of both steady planar and dendritic growth. Although the stable cellular interface occupies most area of the transitional region, extraordinary patterns of planar-cellular oscillation and irregular cells are observed on the two sides of the region, respectively. The mechanism of the self-excited oscillatory interface induced by shear flow is discussed.

Original language	English
Pages (from-to)	183-186
Number of pages	4
Journal	Materials Letters
Volume	73
DOIs	https://doi.org/10.1016/j.matlet.2012.01.007
State	Published - 15 Apr 2012

Keywords

Crystal growth
Interfaces
Metals and alloys
Solidification

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10.1016/j.matlet.2012.01.007

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title = "Morphological determination of forced shear flow rate during directional solidification of succinonitrile-1%salol alloy",

abstract = "Interface morphologies during directional solidification of SCN based alloy in the presence of shear flow are investigated. Microstructure map of wide pulling rate and shear flow rate is summarized. With pulling rate increasing, there exist three distinct regions in the map: planar, transitional and dendritic regions. It is shown that shear flow elevates the critical velocities of both steady planar and dendritic growth. Although the stable cellular interface occupies most area of the transitional region, extraordinary patterns of planar-cellular oscillation and irregular cells are observed on the two sides of the region, respectively. The mechanism of the self-excited oscillatory interface induced by shear flow is discussed.",

keywords = "Crystal growth, Interfaces, Metals and alloys, Solidification",

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year = "2012",

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T1 - Morphological determination of forced shear flow rate during directional solidification of succinonitrile-1%salol alloy

AU - Wang, J. Y.

AU - Xing, H.

AU - Zhai, W.

AU - Jin, K. X.

AU - Chen, C. L.

PY - 2012/4/15

Y1 - 2012/4/15

N2 - Interface morphologies during directional solidification of SCN based alloy in the presence of shear flow are investigated. Microstructure map of wide pulling rate and shear flow rate is summarized. With pulling rate increasing, there exist three distinct regions in the map: planar, transitional and dendritic regions. It is shown that shear flow elevates the critical velocities of both steady planar and dendritic growth. Although the stable cellular interface occupies most area of the transitional region, extraordinary patterns of planar-cellular oscillation and irregular cells are observed on the two sides of the region, respectively. The mechanism of the self-excited oscillatory interface induced by shear flow is discussed.

AB - Interface morphologies during directional solidification of SCN based alloy in the presence of shear flow are investigated. Microstructure map of wide pulling rate and shear flow rate is summarized. With pulling rate increasing, there exist three distinct regions in the map: planar, transitional and dendritic regions. It is shown that shear flow elevates the critical velocities of both steady planar and dendritic growth. Although the stable cellular interface occupies most area of the transitional region, extraordinary patterns of planar-cellular oscillation and irregular cells are observed on the two sides of the region, respectively. The mechanism of the self-excited oscillatory interface induced by shear flow is discussed.

KW - Crystal growth

KW - Interfaces

KW - Metals and alloys

KW - Solidification

UR - http://www.scopus.com/inward/record.url?scp=84862806419&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2012.01.007

DO - 10.1016/j.matlet.2012.01.007

M3 - 文章

AN - SCOPUS:84862806419

SN - 0167-577X

VL - 73

SP - 183

EP - 186

JO - Materials Letters

JF - Materials Letters

ER -

Morphological determination of forced shear flow rate during directional solidification of succinonitrile-1%salol alloy

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Keywords

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