Effect of temperature and strain amplitude on dislocation structure of M963 superalloy during high-temperature low cycle fatigue

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	Effect of temperature and strain amplitude on dislocation structure of M963 superalloy during high-temperature low cycle fatigue
	L. Z. He; Q. Zheng; X. F. Sun; H. R. Guan; Z. Q. Hu; K. Tieu; C. Lu; H. T. Zhu
	2006
发表期刊	Materials Transactions
ISSN	1345-9678
卷号	47 期号:1 页码:67-71
摘要	An investigation was made on the strain-control led low cycle fatigue (LCF) of a cast Ni-base superalloy M963 over a wide total strain range of 0.15-0.6% at a temperature range from 700 to 950 degrees C in air. Correlations between dislocation structure and the testing temperature and applied strain amplitude were enabled through transmission electron microscopy (TEM) observation. At a low temperature region (700 and 800 degrees C), dislocation shearing gamma' precipitates by dislocation pairs and stacking faults at medium and high strain amplitudes, and a well-defined dislocation network at low total strain amplitudes were evident. At a high temperature region (900 and 950 degrees C), dislocations by-passing gamma' precipitates was the main deformation mode.
部门归属	chinese acad sci, inst met res, dept superalloys, shenyang 110016, peoples r china. univ wollongong, sch mech mat & mechatron engn, wollongong, nsw 2522, australia.;he, lz (reprint author), chinese acad sci, inst met res, dept superalloys, shenyang 110016, peoples r china;lizi@uow.edu.au
关键词	M963 Superalloy Low Cycle Fatigue (Lcf) Temperature Strain Amplitude Dislocation Structure Ni-base Superalloy Single-crystal Superalloy Crystallographic Orientation Deformation-behavior In-100 Superalloy Room-temperature Stainless-steel Inconel 718 Creep Morphology
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WOS记录号	WOS:000235568400014
引用统计	被引频次：7[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/321006/34236
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Z. He,Q. Zheng,X. F. Sun,et al. Effect of temperature and strain amplitude on dislocation structure of M963 superalloy during high-temperature low cycle fatigue[J]. Materials Transactions,2006,47(1):67-71.
APA	L. Z. He.,Q. Zheng.,X. F. Sun.,H. R. Guan.,Z. Q. Hu.,...&H. T. Zhu.(2006).Effect of temperature and strain amplitude on dislocation structure of M963 superalloy during high-temperature low cycle fatigue.Materials Transactions,47(1),67-71.
MLA	L. Z. He,et al."Effect of temperature and strain amplitude on dislocation structure of M963 superalloy during high-temperature low cycle fatigue".Materials Transactions 47.1(2006):67-71.