Effect of heat treatment on microstructure and stress rupture life of DD32 single crystal Ni-base superalloy

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	Effect of heat treatment on microstructure and stress rupture life of DD32 single crystal Ni-base superalloy; Effect of heat treatment on microstructure and stress rupture life of DD32 single crystal Ni-base superalloy
	J. J. Yu; X. F. Sun; N. R. Zhao; T. Jin; H. R. Guan; Z. Q. Hu
	2007 ; 2007
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	460 页码:420-427
摘要	The effect of heat treatment on microstructure and stress rupture life of DD32 single crystal Ni-base superalloy was investigated in this paper. Experimental results show that the more regular the cubic shape of gamma' precipitate, the more homogeneous the size of gamma' precipitate, the longer the creep rupture life after heat treatment. The solution temperature has more significant role on the microstructure than the hold time. The optimum solution heat treatment is 1280 degrees C/4h, ac + 1290 degrees C/4 h, ac and the optimum high temperature ageing treatment is 1150 degrees C/4 h, ac. MC-type carbide in DD32 alloy is very stable during heat treatment. (C) 2007 Elsevier B.V. All rights reserved.; The effect of heat treatment on microstructure and stress rupture life of DD32 single crystal Ni-base superalloy was investigated in this paper. Experimental results show that the more regular the cubic shape of gamma' precipitate, the more homogeneous the size of gamma' precipitate, the longer the creep rupture life after heat treatment. The solution temperature has more significant role on the microstructure than the hold time. The optimum solution heat treatment is 1280 degrees C/4h, ac + 1290 degrees C/4 h, ac and the optimum high temperature ageing treatment is 1150 degrees C/4 h, ac. MC-type carbide in DD32 alloy is very stable during heat treatment. (C) 2007 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang 110016, peoples r china.;yu, jj (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;jjyu@imr.ac.cn ; chinese acad sci, inst met res, shenyang 110016, peoples r china.;yu, jj (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;jjyu@imr.ac.cn
关键词	Single Crystal Ni-base Superalloy Single Crystal Ni-base Superalloy Heat Treatment Heat Treatment Nickel-based Superalloys Nickel-based Superalloys Theoretical Considerations Theoretical Considerations Volume Fraction Volume Fraction Alloys Alloys Precipitation Precipitation Gamma/gamma' Gamma/gamma' Energy Energy Growth Growth
URL	查看原文 ; 查看原文
WOS记录号	WOS:000246726200058 ; WOS:000246726200058
引用统计	被引频次：74[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/321006/34005
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. J. Yu,X. F. Sun,N. R. Zhao,et al. Effect of heat treatment on microstructure and stress rupture life of DD32 single crystal Ni-base superalloy, Effect of heat treatment on microstructure and stress rupture life of DD32 single crystal Ni-base superalloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007, 2007,460, 460:420-427, 420-427.
APA	J. J. Yu,X. F. Sun,N. R. Zhao,T. Jin,H. R. Guan,&Z. Q. Hu.(2007).Effect of heat treatment on microstructure and stress rupture life of DD32 single crystal Ni-base superalloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,460,420-427.
MLA	J. J. Yu,et al."Effect of heat treatment on microstructure and stress rupture life of DD32 single crystal Ni-base superalloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 460(2007):420-427.