'Herringbone' defect formation in planar-flow melt spinning

被引：18
|
作者：
Cox, B. L. [1 ]
Steen, P. H. [2 ]
机构：
[1] Exponent Inc, Warrenville, IL 60555 USA
[2] Cornell Univ, Sch Chem & Biomol Engn, Ithaca, NY 14853 USA
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2013年 / 213卷 / 10期
关键词：
Planar-flow spin casting; Planar-flow melt spinning; Defect formation; Herringbone defect; Crosswave defect; Casting; CASTING PROCESS; BEHAVIOR; FLUID; SOLIDIFICATION; PREDICTION; PRESSURE; PUDDLE; METAL;
D O I：
10.1016/j.jmatprotec.2013.04.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A short-wavelength, periodic feature (approximate to 1 mm) similar in appearance to a herringbone pattern appeared on ribbon produced at high rates (approximate to 10 m/s) by the planar-flow process. These marks corresponded to a high-frequency (approximate to 10 kHz) disturbance to the process stream. Observations of herringbone formation came from ribbon profilometry, customized nozzle tests and high-speed meniscus imaging. These observations were compared against observations of the 'crosswave' feature formation which were subject to prior study. It is demonstrated here that herringbone marks, in contrast to the crosswave marks, were mainly influenced by the substrate motion of translation. Herringbone formation is also reported to have correlated with the pinning of the liquid puddle at the nozzle edge. (c) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：1743 / 1752
页数：10
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