Effect of a High Magnetic Field on the Shape of the gamma ' Precipitates in Cast Nickel-based Superalloy K52

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	Effect of a High Magnetic Field on the Shape of the gamma ' Precipitates in Cast Nickel-based Superalloy K52
	X. Ren; G. Q. Chen; W. L. Zhou; C. W. Wu; C. Yuan; J. S. Zhang
	2009
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	25 期号:3 页码:379-382
摘要	The shape change of the gamma' precipitates of cast Ni-based superalloy K52 after aging treatment under a high magnetic field was investigated. The results show that duplex gamma' precipitates are present in the gamma matrix after aging treatment with or without the magnetic field. One is the coarse particles with average size of 500 nm; the other is fine spherical gamma' precipitates with average of 100 nm in diameter. The application of a 10T magnetic field only results in the shape of the coarse gamma' particles changing from spherical to cuboidal when the alloys subjected to the same heat treatments. This shape change was mainly discussed based on the strain energy increase caused by the difference in magnetostriction between the gamma matrix and gamma' precipitates. The fine gamma' particles still keep spherical. Further TEM observations shows that a number of gamma particles in nano-scale precipitate in the coarse gamma' particles in the specimens treated without the magnetic field. In addition, it was found that the magnetic field caused the decrease of the hardness in the alloy, and the hardness was associated with the field direction.
部门归属	[ren, x.; chen, g. q.; zhou, w. l.; zhang, j. s.] dalian univ technol, state key lab mat modificat laser ion & elect bea, dalian 116085, peoples r china. [wu, c. w.] dalian univ technol, state key lab struct anal ind equipment, dalian 116085, peoples r china. [yuan, c.] chinese acad sci, inst met res, shenyang 110016, peoples r china.;zhou, wl (reprint author), dalian univ technol, state key lab mat modificat laser ion & elect bea, dalian 116085, peoples r china;wlzhou@126.com
关键词	Ni-based Superalloy High Magnetic Field Magnetostrictive Strain Energy Precipitation Alloys Microstructure Temperature Transformation Alignment Behavior Heat
URL	查看原文
WOS记录号	WOS:000266847000017
引用统计	被引频次：5[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/321006/32257
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Ren,G. Q. Chen,W. L. Zhou,et al. Effect of a High Magnetic Field on the Shape of the gamma ' Precipitates in Cast Nickel-based Superalloy K52[J]. Journal of Materials Science & Technology,2009,25(3):379-382.
APA	X. Ren,G. Q. Chen,W. L. Zhou,C. W. Wu,C. Yuan,&J. S. Zhang.(2009).Effect of a High Magnetic Field on the Shape of the gamma ' Precipitates in Cast Nickel-based Superalloy K52.Journal of Materials Science & Technology,25(3),379-382.
MLA	X. Ren,et al."Effect of a High Magnetic Field on the Shape of the gamma ' Precipitates in Cast Nickel-based Superalloy K52".Journal of Materials Science & Technology 25.3(2009):379-382.