Effect of Ruthenium on Precipitation Behavior of the Topologically Close-Packed Phase in a Single-Crystal Ni-Based Superalloy During High-Temperature Exposure

IMR OpenIR

	Effect of Ruthenium on Precipitation Behavior of the Topologically Close-Packed Phase in a Single-Crystal Ni-Based Superalloy During High-Temperature Exposure
	X. P. Tan; J. L. Liu; T. Jin; Z. Q. Hu; H. U. Hong; B. G. Choi; I. S. Kim; Y. S. Yoo; C. Y. Jo
	2012
发表期刊	Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science
ISSN	1073-5623
卷号	43A 期号:10 页码:3608-3614
摘要	The precipitation behaviors of the topologically close-packed (TCP) phase in the Ru-free and Ru-containing single-crystal Ni-based superalloys have been investigated. All the TCP phases have been identified as the mu phase with large numbers of planar defects by using a scanning transmission electron microscope (STEM). The addition of 3 wt pct Ru effectively suppresses the nucleation of the mu phase because the addition of 3 wt pct Ru not only decreases the supersaturation of gamma phase but also increases the elastic strain energy for the nucleation of the mu phase. Additionally, the addition of 3 wt pct Ru makes more Re enter the mu phase during its growth and the critical nucleus radius of the mu phase becomes larger. Therefore, it is found that the addition of 3 wt pct Ru decreases the growth rate of the mu phase.
部门归属	[tan, xipeng; liu, jinlai; jin, tao; hu, zhuangqi] chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china. [hong, hyun uk; choi, baig gyu; kim, in soo; yoo, young soo; jo, chang yong] korea inst mat sci, high temp mat res grp, chang won 641831, south korea.;tan, xp (reprint author), chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china.;tjin@imr.ac.cn
关键词	Mu-phase Electron-microscopy Nickel Microstructure Deformation Co7w6
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60254
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. P. Tan,J. L. Liu,T. Jin,et al. Effect of Ruthenium on Precipitation Behavior of the Topologically Close-Packed Phase in a Single-Crystal Ni-Based Superalloy During High-Temperature Exposure[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,2012,43A(10):3608-3614.
APA	X. P. Tan.,J. L. Liu.,T. Jin.,Z. Q. Hu.,H. U. Hong.,...&C. Y. Jo.(2012).Effect of Ruthenium on Precipitation Behavior of the Topologically Close-Packed Phase in a Single-Crystal Ni-Based Superalloy During High-Temperature Exposure.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,43A(10),3608-3614.
MLA	X. P. Tan,et al."Effect of Ruthenium on Precipitation Behavior of the Topologically Close-Packed Phase in a Single-Crystal Ni-Based Superalloy During High-Temperature Exposure".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 43A.10(2012):3608-3614.