Roles of Zr and Y in cast microstructure of M951 nickel-based superalloy

IMR OpenIR

	Roles of Zr and Y in cast microstructure of M951 nickel-based superalloy
	P. J. Zhou; J. J. Yu; X. F. Sun; H. R. Guan; Z. Q. Hu
	2012
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	22 期号:7 页码:1594-1598
摘要	The influence of Zr and Y on the cast microstructure of a nickel-based superalloy was investigated by optical microscopy (OM), scanning electron microscopy(SEM), electron probe micro-analysis (EPMA) and X-ray diffraction (XRD). The gamma+gamma' eutectic volume in the superalloy rises notably with the increase of Zr or Y content. Meanwhile, the morphologies of primary MC carbides change from needle and platelet-like to blocky shape with increasing Zr and Y doped. The XRD results show that the primary MC carbide lattice constant increases with Zr and Y additions, and EPMA investigation shows that the platelet-like MC carbides contain primarily Nb and C, while those carbides in blocky shape have 39.2% Zr and 39.6% Nb in average,. These influences on the cast microstructure can be attributed to the atomic size effects of Zr and Y.
部门归属	[zhou peng-jie] jiangsu univ sci & technol, sch mat sci & engn, zhenjiang 212003, peoples r china. [zhou peng-jie; yu jin-jiang; sun xiao-feng; guan heng-rong; hu zhuang-qi] chinese acad sci, inst met res, dept superalloys, shenyang 110016, peoples r china.;zhou, pj (reprint author), jiangsu univ sci & technol, sch mat sci & engn, zhenjiang 212003, peoples r china.;zhoupengjie@126.com
关键词	Yttrium Zirconium Carbides Nickel Based Superalloys Microstructure Solidification Carbide Morphology Mechanical-properties Boron Ni3al Yttrium Sulfur
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60528
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. J. Zhou,J. J. Yu,X. F. Sun,et al. Roles of Zr and Y in cast microstructure of M951 nickel-based superalloy[J]. Transactions of Nonferrous Metals Society of China,2012,22(7):1594-1598.
APA	P. J. Zhou,J. J. Yu,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2012).Roles of Zr and Y in cast microstructure of M951 nickel-based superalloy.Transactions of Nonferrous Metals Society of China,22(7),1594-1598.
MLA	P. J. Zhou,et al."Roles of Zr and Y in cast microstructure of M951 nickel-based superalloy".Transactions of Nonferrous Metals Society of China 22.7(2012):1594-1598.