Shear localization-martensitic transformation interactions in Fe-Cr-Ni monocrystal

CORC > 金属研究所 > 中国科学院金属研究所

	Shear localization-martensitic transformation interactions in Fe-Cr-Ni monocrystal
	M. A. Meyers ; B. Y. Cao ; V. F. Nesterenko ; D. J. Benson ; Y. B. Xu
刊名	Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science
	2004
卷号	35A 期号:9 页码:2575-2586
关键词	strain-rate deformation ellipsoidal inclusion shock consolidation silicon-carbide elastic field crystals solids bands
ISSN号	1073-5623
中文摘要	A Fe-15 wt pet Cr-15 wt pet Ni alloy monocrystal was deformed dynamically (strain rate similar to10(4) s(-1)) by the collapse of an explosively driven thick-walled cylinder under prescribed initial temperature and strain conditions. The experiments were carried out under the following conditions: (a) alloy in austenitic state, temperature above transformation temperature; (b) alloy in transformed state; and (c) alloy at temperature slightly above g,, propitiating concurrent shear-band propagation and martensitic transformation. The alloy exhibited profuse shear-band formation, which was a sensitive function of the deformation condition. Stress-assisted and strain-induced martensitic transformation competes with shear localization. The alloy deformed at a temperature slightly above g, shows a significantly reduced number of shear bands. The anisotropy of plastic deformation determines the evolution of strains and distribution of shear bands. The different conditions showed significant differences that are interpreted in terms of the microstructural anisotropy. Calculated shear-band spacings based on the Grady-Kipp (GK) and Wright-Ockendon (WO) theories are compared with the observed values. The microstructure within the shear bands was characterized by transmission electron microscopy. Regions of sub-micron grain sizes exhibiting evidence of recrystallization were observed, as well as amorphous regions possibly resulting from melting and rapid resolidification.
原文出处	://WOS:000223678000005
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/35503]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	M. A. Meyers,B. Y. Cao,V. F. Nesterenko,et al. Shear localization-martensitic transformation interactions in Fe-Cr-Ni monocrystal[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,2004,35A(9):2575-2586.
APA	M. A. Meyers,B. Y. Cao,V. F. Nesterenko,D. J. Benson,&Y. B. Xu.(2004).Shear localization-martensitic transformation interactions in Fe-Cr-Ni monocrystal.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,35A(9),2575-2586.
MLA	M. A. Meyers,et al."Shear localization-martensitic transformation interactions in Fe-Cr-Ni monocrystal".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 35A.9(2004):2575-2586.