Influence of deformation level on microstructure and creep behavior of GH4169 alloy

IMR OpenIR

	Influence of deformation level on microstructure and creep behavior of GH4169 alloy
	S. G. Tian; Z. R. Li; Z. G. Zhao; L. Q. Chen; W. R. Sun; X. H. Liu
	2012
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	550 页码:235-242
摘要	By means of the creep properties measurement and microstructure observation, the influence of the deforming techniques on the microstructure and creep behavior of GH4169 alloy has been investigated. Results show that, compared to the isothermal forged (ITF), the hot continuous rolled (HCR) may increase the deformed quantity of alloy. During HCR, significant amount of dislocations and twinning are activated in the alloy, which is favorable for the multi-systems slipping of dislocation, during creep, for releasing the stress concentration to improve the creep resistance and prolong the creep lifetime of the alloy. In the later period of creep, the micro-cracks are initiated along the grain boundaries vertical to the applied stress axis, and propagated along the grain boundary to occur the cleavage fracture, which is a main mechanism of creep fracture for the alloys prepared by two deformed techniques. (C) 2012 Elsevier B.V. All rights reserved.
部门归属	[tian sugui; li zhenrong; zhao zhonggang] shenyang univ technol, sch mat sci & engn, shenyang 110023, peoples r china. [chen liqing; liu xianghua] northeast univ, state key lab rolling & automat, shenyang 110004, peoples r china. [sun wenru] chinese acad sci, inst met res, shenyang 110016, peoples r china.;tian, sg (reprint author), shenyang univ technol, sch mat sci & engn, shenyang 110023, peoples r china.;tiansugui2003@163.com
关键词	Gh4169 Alloy Hot Continuous Rolling Microstructure Creep Deformation Mechanism Intermediate Temperature Inconel 718 Superalloy Mechanisms
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60266
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. G. Tian,Z. R. Li,Z. G. Zhao,et al. Influence of deformation level on microstructure and creep behavior of GH4169 alloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2012,550:235-242.
APA	S. G. Tian,Z. R. Li,Z. G. Zhao,L. Q. Chen,W. R. Sun,&X. H. Liu.(2012).Influence of deformation level on microstructure and creep behavior of GH4169 alloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,550,235-242.
MLA	S. G. Tian,et al."Influence of deformation level on microstructure and creep behavior of GH4169 alloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 550(2012):235-242.