Effect of gamma ' formation and strengthening elements on microstructures and stress rupture property of single crystal super-alloys

IMR OpenIR

	Effect of gamma ' formation and strengthening elements on microstructures and stress rupture property of single crystal super-alloys
	L. R. Liu; H. J. Chen; T. Jin; X. F. Sun; H. Guan; Z. Q. Hu
	2010
发表期刊	China Foundry
ISSN	1672-6421
卷号	7 期号:3 页码:265-269
摘要	An investigation was carried out to study the effects of gamma' formation and strengthening elements (Al, Ti and Ta) on the microstructure and stress rupture properties of nickel base single crystal super-alloys. The results show that with the increase of gamma' formation and strengthening elements, the percentage of gamma-gamma' eutectic and the misfit degree of gamma/gamma' increases. Detailed microstructural analysis revealed that with the increase of gamma' forming element content, the morphology of gamma' changed from spherical to cubic, then irregular shape; and the size of gamma' increases gradually. Excessive gamma' formation and strengthening elements will lead to the precipitation of p phase during stress rupture tests. The alloy with 5wt.%Al, 1wt.%Ti and 6wt.%Ta has the best stress rupture property.
部门归属	[liu lirong] shenyang univ technol, mat sci & engn sch, shenyang 110023, peoples r china. [jin tao; sun xiaofeng; guan hengrong; hu zhuangqi] chinese acad sci, dept superalloy, inst met res, shenyang 110016, peoples r china.;liu, lr (reprint author), shenyang univ technol, mat sci & engn sch, shenyang 110023, peoples r china;lrliu@sut.edu.cn
关键词	Gamma ' Phase Microstructures Stress Rupture Property Single Crystal Super-alloy Creep-behavior Superalloys
URL	查看原文
WOS记录号	WOS:000281560700009
引用统计	被引频次：1[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/321006/31301
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. R. Liu,H. J. Chen,T. Jin,et al. Effect of gamma ' formation and strengthening elements on microstructures and stress rupture property of single crystal super-alloys[J]. China Foundry,2010,7(3):265-269.
APA	L. R. Liu,H. J. Chen,T. Jin,X. F. Sun,H. Guan,&Z. Q. Hu.(2010).Effect of gamma ' formation and strengthening elements on microstructures and stress rupture property of single crystal super-alloys.China Foundry,7(3),265-269.
MLA	L. R. Liu,et al."Effect of gamma ' formation and strengthening elements on microstructures and stress rupture property of single crystal super-alloys".China Foundry 7.3(2010):265-269.