Effects of average grain size and misorientation angle on the deformation behaviour of nanocrystalline grain structures

Sanusi Kazeem Oladele; Afolabi Ayo Samuel

Effects of average grain size and misorientation angle on the deformation behaviour of nanocrystalline grain structures

Sanusi Kazeem Oladele, Afolabi Ayo Samuel

Chemical, Materials & Metallurgical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This study reports an investigation using finite element analysis to study the behaviour of nanocrystalline grain structures during severe plastic deformation. The effects of average grain size and misorientation angle on the deformation are examined in order to evaluate how microstructural features might explain the observed increase in strength of nanocrsytalline metals. A polycrystal model is generated using a planar tessellation with randomly orientated grains with the numbers of grains being 15, 22 and 34. The simulated results show that the grain size and the grain misorientation angle have significant effects on the stress distribution and average stress within the polycrystalline area. This study thus successfully demonstrated a relatively efficient finite element technique which makes the stress field dependent on the grain size and the angle of misorientation between grains.

Original language	English
Title of host publication	Materials Science and Technology Conference and Exhibition 2012, MS and T 2012
Pages	693-700
Number of pages	8
Volume	1
Publication status	Published - Dec 1 2012
Event	Materials Science and Technology Conference and Exhibition 2012, MS and T 2012 - Pittsburgh, PA, United States Duration: Oct 7 2012 → Oct 11 2012

Other

Other	Materials Science and Technology Conference and Exhibition 2012, MS and T 2012
Country	United States
City	Pittsburgh, PA
Period	10/7/12 → 10/11/12

All Science Journal Classification (ASJC) codes

Materials Science (miscellaneous)

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@inproceedings{547e4582ab574643a94af9632dcdc6f0,

title = "Effects of average grain size and misorientation angle on the deformation behaviour of nanocrystalline grain structures",

abstract = "This study reports an investigation using finite element analysis to study the behaviour of nanocrystalline grain structures during severe plastic deformation. The effects of average grain size and misorientation angle on the deformation are examined in order to evaluate how microstructural features might explain the observed increase in strength of nanocrsytalline metals. A polycrystal model is generated using a planar tessellation with randomly orientated grains with the numbers of grains being 15, 22 and 34. The simulated results show that the grain size and the grain misorientation angle have significant effects on the stress distribution and average stress within the polycrystalline area. This study thus successfully demonstrated a relatively efficient finite element technique which makes the stress field dependent on the grain size and the angle of misorientation between grains.",

author = "Oladele, {Sanusi Kazeem} and Samuel, {Afolabi Ayo}",

year = "2012",

month = dec,

day = "1",

language = "English",

isbn = "9781622766536",

volume = "1",

pages = "693--700",

booktitle = "Materials Science and Technology Conference and Exhibition 2012, MS and T 2012",

note = "Materials Science and Technology Conference and Exhibition 2012, MS and T 2012 ; Conference date: 07-10-2012 Through 11-10-2012",

}

Oladele, SK & Samuel, AA 2012, Effects of average grain size and misorientation angle on the deformation behaviour of nanocrystalline grain structures. in Materials Science and Technology Conference and Exhibition 2012, MS and T 2012. vol. 1, pp. 693-700, Materials Science and Technology Conference and Exhibition 2012, MS and T 2012, Pittsburgh, PA, United States, 10/7/12.

TY - GEN

T1 - Effects of average grain size and misorientation angle on the deformation behaviour of nanocrystalline grain structures

AU - Oladele, Sanusi Kazeem

AU - Samuel, Afolabi Ayo

PY - 2012/12/1

Y1 - 2012/12/1

N2 - This study reports an investigation using finite element analysis to study the behaviour of nanocrystalline grain structures during severe plastic deformation. The effects of average grain size and misorientation angle on the deformation are examined in order to evaluate how microstructural features might explain the observed increase in strength of nanocrsytalline metals. A polycrystal model is generated using a planar tessellation with randomly orientated grains with the numbers of grains being 15, 22 and 34. The simulated results show that the grain size and the grain misorientation angle have significant effects on the stress distribution and average stress within the polycrystalline area. This study thus successfully demonstrated a relatively efficient finite element technique which makes the stress field dependent on the grain size and the angle of misorientation between grains.

AB - This study reports an investigation using finite element analysis to study the behaviour of nanocrystalline grain structures during severe plastic deformation. The effects of average grain size and misorientation angle on the deformation are examined in order to evaluate how microstructural features might explain the observed increase in strength of nanocrsytalline metals. A polycrystal model is generated using a planar tessellation with randomly orientated grains with the numbers of grains being 15, 22 and 34. The simulated results show that the grain size and the grain misorientation angle have significant effects on the stress distribution and average stress within the polycrystalline area. This study thus successfully demonstrated a relatively efficient finite element technique which makes the stress field dependent on the grain size and the angle of misorientation between grains.

UR - http://www.scopus.com/inward/record.url?scp=84875798562&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84875798562&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84875798562

SN - 9781622766536

VL - 1

SP - 693

EP - 700

BT - Materials Science and Technology Conference and Exhibition 2012, MS and T 2012

T2 - Materials Science and Technology Conference and Exhibition 2012, MS and T 2012

Y2 - 7 October 2012 through 11 October 2012

ER -