Effect of phosphorus on cast microstructure of Ni3Al

IMR OpenIR

	Effect of phosphorus on cast microstructure of Ni3Al
	Meng, XN; Sun, WR; Guo, SR; Lu, DZ; Li, N
通讯作者	Sun, WR()
	2004-06-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	40 期号:6 页码:613-615
摘要	Phosphorus is hardly dissolved in the solidified Ni3Al solids, and tends to be segregated in the residual liquids of Ni3Al The phosphorus-bearing phase is precipitated at the end of solidification. The segregation of phosphorus in the residual liquids inhibits the nucleation of Ni3Al grains and the formation of the equiaxed grains at the central part of the sample, and favors the growth of the columnar grains towards the central part of the sample. The reason for phosphorus to decrease the nucleation rate of Ni3Al is that if lowers the difference of free energy between solids and liquids, and increases the activation energy for the atoms to transit through the liquid/solid interface. Phosphorus lowers the final solidification temperature of Ni3Al, increases the length of mushy zone, inhibits the feeding of casting, and hence increases the tendency of micropores formation.
关键词	phosphorus Ni3Al solidification segregation
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000222338500011
出版者	SCIENCE CHINA PRESS
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/321006/119198
专题	中国科学院金属研究所
通讯作者	Sun, WR
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 10016, Peoples R China
推荐引用方式 GB/T 7714	Meng, XN,Sun, WR,Guo, SR,et al. Effect of phosphorus on cast microstructure of Ni3Al[J]. ACTA METALLURGICA SINICA,2004,40(6):613-615.
APA	Meng, XN,Sun, WR,Guo, SR,Lu, DZ,&Li, N.(2004).Effect of phosphorus on cast microstructure of Ni3Al.ACTA METALLURGICA SINICA,40(6),613-615.
MLA	Meng, XN,et al."Effect of phosphorus on cast microstructure of Ni3Al".ACTA METALLURGICA SINICA 40.6(2004):613-615.