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

IMR OpenIR

	Shear localization-martensitic transformation interactions in Fe-Cr-Ni monocrystal
	Meyers, MA ; Cao, BY ; Nesterenko, VF ; Benson, DJ ; Xu, YB
通讯作者	Meyers, MA(mameyers@ucsd.edu)
	2004-09-01
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
卷号	35A 期号:9 页码:2575-2586
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.
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000223678000005
出版者	MINERALS METALS MATERIALS SOC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/82239
通讯作者	Meyers, MA
作者单位	1.Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Meyers, MA,Cao, BY,Nesterenko, VF,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	Meyers, MA,Cao, BY,Nesterenko, VF,Benson, DJ,&Xu, YB.(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	Meyers, MA,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.