Influence of temperature on tensile behavior and deformation mechanism of Re-containing single crystal superalloy

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	Influence of temperature on tensile behavior and deformation mechanism of Re-containing single crystal superalloy
	J. L. Liu; J. J. Yu; T. Jin; X. F. Sun; H. R. Guan; Z. Q. Hu
	2011
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	21 期号:7 页码:1518-1523
摘要	Tensile properties of a Re-containing single crystal superalloy were determined within the temperature range from 20 to 1 100 degrees C with a constant strain rate of 1.67x10(-4) s(-1). From room temperature to 600 degrees C, the yield strength increases slightly with increasing temperature. The yield strength decreases to a minimum at 760 degrees C, while a maximum is reached dramatically at 800 degrees C. The elongation and area reduction decrease gradually from room temperature to 800 degrees C. Above 800 degrees C, the yield strength decreases significantly with increasing temperature. The gamma' phase is sheared by antiphase boundary (APB) below 600 degrees C, while elongated SSF (superlattice stacking fault) is left in gamma' as debris. At 760 degrees C the gamma' phase is sheared by a/3 < 112 > superpartial dislocation, which causes decrease of yield strength due to low energy of SSF. Above 800 degrees C, dislocations overcome gamma' through by-passing mechanism.
部门归属	[liu jin-lai; yu jin-jiang; jin tao; sun xiao-feng; guan heng-rong; hu zhuang-qi] chinese acad sci, inst met res, shenyang 110016, peoples r china.;liu, jl (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;jlliu@imr.ac.cn
关键词	Single Crystal Superalloy Tensile Behavior Yield Strength Microstructure Nickel-based Superalloy Resolved Shear-stress Base Superalloy Dislocation Microstructure Gamma'-phase Flow-stress Dependence Asymmetry Direction Alloy
URL	查看原文
WOS记录号	WOS:000295934900012
引用统计	被引频次：39[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/321006/30535
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. L. Liu,J. J. Yu,T. Jin,et al. Influence of temperature on tensile behavior and deformation mechanism of Re-containing single crystal superalloy[J]. Transactions of Nonferrous Metals Society of China,2011,21(7):1518-1523.
APA	J. L. Liu,J. J. Yu,T. Jin,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2011).Influence of temperature on tensile behavior and deformation mechanism of Re-containing single crystal superalloy.Transactions of Nonferrous Metals Society of China,21(7),1518-1523.
MLA	J. L. Liu,et al."Influence of temperature on tensile behavior and deformation mechanism of Re-containing single crystal superalloy".Transactions of Nonferrous Metals Society of China 21.7(2011):1518-1523.