Effect of rare earth metals on solidification behaviour in nickel based superalloy

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	Effect of rare earth metals on solidification behaviour in nickel based superalloy
	X. L. Pan; H. Y. Yu; G. F. Tu; W. R. Sun; Z. Q. Hu
	2012
发表期刊	Materials Science and Technology
ISSN	0267-0836
卷号	28 期号:5 页码:560-564
摘要	The effect of rare earth metals (REMs) on the microstructure and segregation during solidification in a highly alloyed Ni based superalloy was investigated. Rare earth metals considerably decrease the amounts of coarse columnar grains and increase the amounts of equiaxed grains. They are segregated to the interdendritic regions mainly as the precipitate of Ni5Ce. Both the dimension and distribution of gamma' particles and MC carbide are modified by REM. Eutectic (gamma+gamma'), Laves phase, delta phase and sigma phase are precipitated in the interdendritic regions because of the serious segregation of niobium and titanium aggravated by REM. The differential thermal analysis indicates that the precipitation temperature of phases and the solidification sequence of the superalloy can be changed due to the additions of REM.
部门归属	[pan, x. l.; yu, h. y.; tu, g. f.] northeastern univ, sch met & mat, shenyang 110004, peoples r china. [sun, w. r.; hu, z. q.] chinese acad sci, inst met res, shenyang 110016, peoples r china.;pan, xl (reprint author), northeastern univ, sch met & mat, shenyang 110004, peoples r china.;panxl@smm.neu.edu.cn
关键词	Rare Earth Metals Segregation Solidification Nickel Based Superalloy Microstructure Segregation Steel Alloy
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60180
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. L. Pan,H. Y. Yu,G. F. Tu,et al. Effect of rare earth metals on solidification behaviour in nickel based superalloy[J]. Materials Science and Technology,2012,28(5):560-564.
APA	X. L. Pan,H. Y. Yu,G. F. Tu,W. R. Sun,&Z. Q. Hu.(2012).Effect of rare earth metals on solidification behaviour in nickel based superalloy.Materials Science and Technology,28(5),560-564.
MLA	X. L. Pan,et al."Effect of rare earth metals on solidification behaviour in nickel based superalloy".Materials Science and Technology 28.5(2012):560-564.