Microstructural effects on adiabatic shear band formation

S. Osovski; D. Rittel; P. Landau; A. Venkert

doi:https://doi.org/10.1016/j.scriptamat.2011.09.014

Microstructural effects on adiabatic shear band formation

S. Osovski, D. Rittel, P. Landau, A. Venkert

Mechanical Engineering

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Dynamic recrystallization (DRX), driven by the dynamic stored energy of cold work, promotes shear localization. However, the influence of twinning remains to be investigated. We consider two model materials under impact, pure Titanium and a Ti6Al4V alloy, for which the extent of twinning and DRX differs vastly. A grain-scale finite element model shows that twinning delays DRX and consequently strain localization. Moreover, the calculated temperature elevations (local and global) remain very modest until the onset of failure.

Original language	English
Pages (from-to)	9-12
Number of pages	4
Journal	Scripta Materialia
Volume	66
Issue number	1
DOIs	https://doi.org/10.1016/j.scriptamat.2011.09.014
State	Published - 1 Jan 2012

Keywords

Dynamic recrystallization
Micromechanical modeling
Shear bands
Transmission electron microscopy (TEM)
Twinning

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
General Materials Science

Access to Document

https://doi.org/10.1016/j.scriptamat.2011.09.014

Cite this

@article{51cf47b11e244d4ab0c4b540500db2f1,

title = "Microstructural effects on adiabatic shear band formation",

abstract = "Dynamic recrystallization (DRX), driven by the dynamic stored energy of cold work, promotes shear localization. However, the influence of twinning remains to be investigated. We consider two model materials under impact, pure Titanium and a Ti6Al4V alloy, for which the extent of twinning and DRX differs vastly. A grain-scale finite element model shows that twinning delays DRX and consequently strain localization. Moreover, the calculated temperature elevations (local and global) remain very modest until the onset of failure.",

keywords = "Dynamic recrystallization, Micromechanical modeling, Shear bands, Transmission electron microscopy (TEM), Twinning",

author = "S. Osovski and D. Rittel and P. Landau and A. Venkert",

note = "Funding Information: The authors thank Prof. A. Needleman and Dr. E. Bouchbinder for helpful discussions. The support of Israel Science Foundation (Grant 2011362 ) is gratefully acknowledged.",

year = "2012",

month = jan,

day = "1",

doi = "https://doi.org/10.1016/j.scriptamat.2011.09.014",

language = "الإنجليزيّة",

volume = "66",

pages = "9--12",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "American Chemical Society",

number = "1",

}

TY - JOUR

T1 - Microstructural effects on adiabatic shear band formation

AU - Osovski, S.

AU - Rittel, D.

AU - Landau, P.

AU - Venkert, A.

N1 - Funding Information: The authors thank Prof. A. Needleman and Dr. E. Bouchbinder for helpful discussions. The support of Israel Science Foundation (Grant 2011362 ) is gratefully acknowledged.

PY - 2012/1/1

Y1 - 2012/1/1

N2 - Dynamic recrystallization (DRX), driven by the dynamic stored energy of cold work, promotes shear localization. However, the influence of twinning remains to be investigated. We consider two model materials under impact, pure Titanium and a Ti6Al4V alloy, for which the extent of twinning and DRX differs vastly. A grain-scale finite element model shows that twinning delays DRX and consequently strain localization. Moreover, the calculated temperature elevations (local and global) remain very modest until the onset of failure.

AB - Dynamic recrystallization (DRX), driven by the dynamic stored energy of cold work, promotes shear localization. However, the influence of twinning remains to be investigated. We consider two model materials under impact, pure Titanium and a Ti6Al4V alloy, for which the extent of twinning and DRX differs vastly. A grain-scale finite element model shows that twinning delays DRX and consequently strain localization. Moreover, the calculated temperature elevations (local and global) remain very modest until the onset of failure.

KW - Dynamic recrystallization

KW - Micromechanical modeling

KW - Shear bands

KW - Transmission electron microscopy (TEM)

KW - Twinning

UR - http://www.scopus.com/inward/record.url?scp=80755136706&partnerID=8YFLogxK

U2 - https://doi.org/10.1016/j.scriptamat.2011.09.014

DO - https://doi.org/10.1016/j.scriptamat.2011.09.014

M3 - مقالة

SN - 1359-6462

VL - 66

SP - 9

EP - 12

JO - Scripta Materialia

JF - Scripta Materialia

IS - 1

ER -

Microstructural effects on adiabatic shear band formation

Abstract

Keywords

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this