Dynamic Recrystallization Mechanism of Inconel 690 Superalloy During Hot deformation at High Strain Rate

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	Dynamic Recrystallization Mechanism of Inconel 690 Superalloy During Hot deformation at High Strain Rate
	B. Wang; S. H. Zhang; M. Cheng; H. W. Song
	2013
发表期刊	Journal of Materials Engineering and Performance
ISSN	1059-9495
卷号	22 期号:8 页码:2382-2388
摘要	The hot deformation characteristics of Inconel 690 superalloy were investigated on the Gleeble-3800 thermal-mechanical simulator. The testing temperatures were in the range of 1000-1200 A degrees C, the strain rate was 10 s(-1), and the maximum true strain was 0.9. Optical microscopy, transmission electron microscopy, and electron backscatter diffraction techniques were employed to analyze the microstructure evolution and nucleation mechanisms of dynamic recrystallization (DRX). The results show that multiple-cycle discontinuous dynamic recrystallization (DDRX) occurs in the process of hot deformation under the conditions above. DRX grain size decreases with decreasing temperature and increasing strain. DDRX with sub-grains directly transforming into grains is the dominating nucleation mechanism of DRX. And, the nucleation mechanism of bulging of the original grain boundaries can only be considered as an assistant nucleation mechanism of DRX, which mainly occurs in the beginning of the deformation.
部门归属	[wang, bin ; zhang, shi-hong ; cheng, ming ; song, hong-wu] chinese acad sci, inst met res, shenyang 110016, peoples r china. ; wang, b (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china. ; shzhang@imr.ac.cn
关键词	Drx Hot Deformation Inconel 690 Superalloy Microstructure Evolution Alloy Behavior Microstructure Evolution Aluminum Growth Tubes
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71511
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. Wang,S. H. Zhang,M. Cheng,et al. Dynamic Recrystallization Mechanism of Inconel 690 Superalloy During Hot deformation at High Strain Rate[J]. Journal of Materials Engineering and Performance,2013,22(8):2382-2388.
APA	B. Wang,S. H. Zhang,M. Cheng,&H. W. Song.(2013).Dynamic Recrystallization Mechanism of Inconel 690 Superalloy During Hot deformation at High Strain Rate.Journal of Materials Engineering and Performance,22(8),2382-2388.
MLA	B. Wang,et al."Dynamic Recrystallization Mechanism of Inconel 690 Superalloy During Hot deformation at High Strain Rate".Journal of Materials Engineering and Performance 22.8(2013):2382-2388.