Deformation, Phase Transformation and Recrystallization in the Shear Bands Induced by High-Strain Rate Loading in Titanium and its Alloys

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	Deformation, Phase Transformation and Recrystallization in the Shear Bands Induced by High-Strain Rate Loading in Titanium and its Alloys
	Xu YB(徐永波); Bai YL(白以龙); Meyers MA; Xu, YB (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
发表期刊	Journal of Materials Science & Technology
	2006
卷号	22 期号:6 页码:737
ISSN	1005-0302
摘要	alpha-titanium and its alloys with a dual-phase structure (alpha+beta) were deformed dynamically under strain rate of about 10(4) s(-1). The formation and microstructural evolution of the localized shear bands were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results reveal that both the strain and strain rate should be considered simultaneously as the mechanical conditions for shear band formation, and twinning is an important mode of deformation. Both experimental and calculation show that the materials within the bands underwent a superhigh strain rate (9 x 10(5) s(-1)) deformation, which is two magnitudes of that of average strain rate required for shear band formation; the dislocations in the bands can be constricted and developed into cell structures; the phase transformation from alpha to alpha(2) within the bands was observed, and the transformation products (alpha(2)) had a certain crystallographic orientation relationship with their parent; the equiaxed grains with an average size of 10 mu m in diameter observed within the bands are proposed to be the results of recrystallization.
学科领域	力学
收录类别	SCI
语种	英语
WOS记录号	WOS:000242638500002
关键词[WOS]	TRANSMISSION ELECTRON-MICROSCOPY ; ADIABATIC SHEAR ; DYNAMIC DEFORMATION ; PLASTIC-DEFORMATION ; TI-6AL-4V ALLOY ; 4340 STEEL ; LOCALIZATION ; MICROSTRUCTURE ; EVOLUTION ; INSTABILITY
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
引用统计	被引频次：71[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/15769
专题	力学所知识产出(1956-2008)
通讯作者	Xu, YB (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Xu YB,Bai YL,Meyers MA,et al. Deformation, Phase Transformation and Recrystallization in the Shear Bands Induced by High-Strain Rate Loading in Titanium and its Alloys[J]. Journal of Materials Science & Technology,2006,22,6,:737.
APA	徐永波,白以龙,Meyers MA,&Xu, YB .(2006).Deformation, Phase Transformation and Recrystallization in the Shear Bands Induced by High-Strain Rate Loading in Titanium and its Alloys.Journal of Materials Science & Technology,22(6),737.
MLA	徐永波,et al."Deformation, Phase Transformation and Recrystallization in the Shear Bands Induced by High-Strain Rate Loading in Titanium and its Alloys".Journal of Materials Science & Technology 22.6(2006):737.

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