Banding formation and eutectic lamellar growth in directional solidified Ni50Al20Fe30 alloy

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	Banding formation and eutectic lamellar growth in directional solidified Ni50Al20Fe30 alloy
	J. Chen; J. H. Lee; Y. T. Lee; Z. Q. Hu
	1998
发表期刊	Metals and Materials-Korea
ISSN	1225-9438
卷号	4 期号:2 页码:111-114
摘要	Banding formation and eutectic lamellar growth in a directionally solidified Ni50Al20Fe30 alloy were investigated. It was found that the banding area consists of two layers. The first layer is a gamma layer, while the subsequent one is a beta layer. The composition of various phases around the banding area changes with the solidification process. The banding is formed by two steps process and caused by factors such as the fractions during the sample growth process. It was found that the band was found at relatively low growth rate. Therefore, this study indicates that increasing the growth rate is an effective method to eliminate the band formation. Eutectic lamellae nucleate and grow again after the banding formation. During the initial transition lamellar growth, the relationship between the square lamellar spacing, gamma(2), and the distance from, the banding, d, can be described by the following equation: gamma(2) = K [1-exp(A.d)] where K and A are constant.
部门归属	cent s univ technol, changsha 410083, peoples r china. changwon natl univ, dept met & mat sci, changwon 641773, kyungnam, south korea. korea inst machinery & mat, changwon 641010, kyungnam, south korea. chinese acad sci, inst met res, shenyang 110015, peoples r china.;chen, j (reprint author), cent s univ technol, changsha 410083, peoples r china
关键词	Directional Solidification Eutectic Banding Formation Intermetallic Compound
URL	查看原文
WOS记录号	WOS:000073423300003
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37634
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Chen,J. H. Lee,Y. T. Lee,et al. Banding formation and eutectic lamellar growth in directional solidified Ni50Al20Fe30 alloy[J]. Metals and Materials-Korea,1998,4(2):111-114.
APA	J. Chen,J. H. Lee,Y. T. Lee,&Z. Q. Hu.(1998).Banding formation and eutectic lamellar growth in directional solidified Ni50Al20Fe30 alloy.Metals and Materials-Korea,4(2),111-114.
MLA	J. Chen,et al."Banding formation and eutectic lamellar growth in directional solidified Ni50Al20Fe30 alloy".Metals and Materials-Korea 4.2(1998):111-114.