Effect of ruthenium on high-temperature creep rupture life of a single crystal nickel-based superalloy

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	Effect of ruthenium on high-temperature creep rupture life of a single crystal nickel-based superalloy; Effect of ruthenium on high-temperature creep rupture life of a single crystal nickel-based superalloy
	X. P. Tan; J. L. Liu; T. Jin; Z. Q. Hu; H. U. Hong; B. G. Choi; I. S. Kim; C. Y. Jo
	2011 ; 2011
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing ; Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093 ; 0921-5093
卷号	528 期号:29-30 页码:8381-8388
摘要	The addition of 3 wt% ruthenium (Ru) has been found to improve the creep rupture lives of a single crystal Ni-based superalloy under both conditions of 1100 degrees C/150 MPa and 1000 degrees C/310 MPa. Creep curve analysis indicates that the creep mechanisms are different from each condition. The improvement of creep rupture lives by 3 wt% Ru addition is discussed not only from the view of dislocation movement but also the gamma' phase evolution. The change of gamma/gamma' lattice misfit in the initial microstructure is believed to be the key role of Ru on the high-temperature creep deformation. The larger negative lattice misfit caused by an addition of 3 wt% Ru induces smaller and more regular gamma' particles in the initial state, as well as denser dislocation networks at the gamma/gamma' interface during creep. These two aspects are crucial to the high-temperature creep rupture life. In addition, a little topologically close-packed (TCP) phases are observed after creep rupture in the two experimental alloys. (C) 2011 Elsevier B.V. All rights reserved.; The addition of 3 wt% ruthenium (Ru) has been found to improve the creep rupture lives of a single crystal Ni-based superalloy under both conditions of 1100 degrees C/150 MPa and 1000 degrees C/310 MPa. Creep curve analysis indicates that the creep mechanisms are different from each condition. The improvement of creep rupture lives by 3 wt% Ru addition is discussed not only from the view of dislocation movement but also the gamma' phase evolution. The change of gamma/gamma' lattice misfit in the initial microstructure is believed to be the key role of Ru on the high-temperature creep deformation. The larger negative lattice misfit caused by an addition of 3 wt% Ru induces smaller and more regular gamma' particles in the initial state, as well as denser dislocation networks at the gamma/gamma' interface during creep. These two aspects are crucial to the high-temperature creep rupture life. In addition, a little topologically close-packed (TCP) phases are observed after creep rupture in the two experimental alloys. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[tan, x. p.; liu, j. l.; jin, t.; hu, z. q.] chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china. [hong, h. u.; choi, b. g.; kim, i. s.; jo, c. y.] korea inst mat sci, high temp mat res grp, chang won 641831, gyeongnam, south korea.;jin, t (reprint author), chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china;tjin@imr.ac.cn ; [tan, x. p.; liu, j. l.; jin, t.; hu, z. q.] chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china. [hong, h. u.; choi, b. g.; kim, i. s.; jo, c. y.] korea inst mat sci, high temp mat res grp, chang won 641831, gyeongnam, south korea.;jin, t (reprint author), chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china;tjin@imr.ac.cn
关键词	Nickel-based Superalloy Nickel-based Superalloy Ruthenium (Ru) Ruthenium (Ru) Microstructural Evolution Microstructural Evolution Creep Creep Misfit Misfit Interfacial Dislocation Networks Interfacial Dislocation Networks Precipitate Morphology Precipitate Morphology Rhenium Rhenium Additions Additions Phase-stability Phase-stability Heat-treatment Heat-treatment Ru Ru Microstructure Microstructure Interdiffusion Interdiffusion Intermediate Intermediate Deformation Deformation
URL	查看原文 ; 查看原文
WOS记录号	WOS:000296676800011 ; WOS:000296676800011
引用统计	被引频次：54[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/321006/30694
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 high-temperature creep rupture life of a single crystal nickel-based superalloy, Effect of ruthenium on high-temperature creep rupture life of a single crystal nickel-based superalloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2011, 2011,528, 528(29-30):8381-8388, 8381-8388.
APA	X. P. Tan.,J. L. Liu.,T. Jin.,Z. Q. Hu.,H. U. Hong.,...&C. Y. Jo.(2011).Effect of ruthenium on high-temperature creep rupture life of a single crystal nickel-based superalloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,528(29-30),8381-8388.
MLA	X. P. Tan,et al."Effect of ruthenium on high-temperature creep rupture life of a single crystal nickel-based superalloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 528.29-30(2011):8381-8388.

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