Effect of cryogenic temperature and change of strain path on grain refinement during rolling of Cu-30Zn brass

T. Konkova, S. Mironov, A. Korznikov, G. Korznikova, M. M. Myshlyaev, S. L. Semiatin

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The effect of cryogenic temperature and change of strain path on grain refinement during the rolling of Cu-30Zn brass was determined. To this end, the material was unidirectionally rolled or cross-rolled to 90% thickness reduction at either ambient or liquid-nitrogen temperatures, and the resulting grain structures and crystallographic textures were determined via electron backscatter diffraction (EBSD) technique. In all cases, grain refinement was found to be governed primarily by twinning and shear banding. Lowering of the rolling temperature to the cryogenic range was found to provide only a minor effect. Cryogenic rolling was thus concluded to impart no practical benefit with regard to grain refinement or property improvement for this material. In contrast, a change of strain path via cross rolling was shown to enhance twinning and shear banding and thus to promote the formation of a relatively homogeneous ultrafine-grain microstructure.

LanguageEnglish
Pages913-921
Number of pages9
JournalMaterials and Design
Volume86
Early online date26 Jul 2015
DOIs
Publication statusPublished - 5 Dec 2015

Fingerprint

Grain refinement
Brass
Cryogenics
Twinning
Crystal microstructure
Liquid nitrogen
Electron diffraction
Temperature
Textures
Microstructure
brass

Keywords

  • change of strain path
  • cryogenic deformation
  • Cu-30Zn brass
  • electron backscatter diffraction
  • grain refinement
  • grain structure

Cite this

Konkova, T. ; Mironov, S. ; Korznikov, A. ; Korznikova, G. ; Myshlyaev, M. M. ; Semiatin, S. L. / Effect of cryogenic temperature and change of strain path on grain refinement during rolling of Cu-30Zn brass. In: Materials and Design. 2015 ; Vol. 86. pp. 913-921.
@article{9e14fad4d5784512a53b76be62ed7856,
title = "Effect of cryogenic temperature and change of strain path on grain refinement during rolling of Cu-30Zn brass",
abstract = "The effect of cryogenic temperature and change of strain path on grain refinement during the rolling of Cu-30Zn brass was determined. To this end, the material was unidirectionally rolled or cross-rolled to 90{\%} thickness reduction at either ambient or liquid-nitrogen temperatures, and the resulting grain structures and crystallographic textures were determined via electron backscatter diffraction (EBSD) technique. In all cases, grain refinement was found to be governed primarily by twinning and shear banding. Lowering of the rolling temperature to the cryogenic range was found to provide only a minor effect. Cryogenic rolling was thus concluded to impart no practical benefit with regard to grain refinement or property improvement for this material. In contrast, a change of strain path via cross rolling was shown to enhance twinning and shear banding and thus to promote the formation of a relatively homogeneous ultrafine-grain microstructure.",
keywords = "change of strain path, cryogenic deformation, Cu-30Zn brass, electron backscatter diffraction, grain refinement, grain structure",
author = "T. Konkova and S. Mironov and A. Korznikov and G. Korznikova and Myshlyaev, {M. M.} and Semiatin, {S. L.}",
year = "2015",
month = "12",
day = "5",
doi = "10.1016/j.matdes.2015.06.146",
language = "English",
volume = "86",
pages = "913--921",
journal = "Materials & Design",
issn = "0261-3069",

}

Effect of cryogenic temperature and change of strain path on grain refinement during rolling of Cu-30Zn brass. / Konkova, T.; Mironov, S.; Korznikov, A.; Korznikova, G.; Myshlyaev, M. M.; Semiatin, S. L.

In: Materials and Design, Vol. 86, 05.12.2015, p. 913-921.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of cryogenic temperature and change of strain path on grain refinement during rolling of Cu-30Zn brass

AU - Konkova, T.

AU - Mironov, S.

AU - Korznikov, A.

AU - Korznikova, G.

AU - Myshlyaev, M. M.

AU - Semiatin, S. L.

PY - 2015/12/5

Y1 - 2015/12/5

N2 - The effect of cryogenic temperature and change of strain path on grain refinement during the rolling of Cu-30Zn brass was determined. To this end, the material was unidirectionally rolled or cross-rolled to 90% thickness reduction at either ambient or liquid-nitrogen temperatures, and the resulting grain structures and crystallographic textures were determined via electron backscatter diffraction (EBSD) technique. In all cases, grain refinement was found to be governed primarily by twinning and shear banding. Lowering of the rolling temperature to the cryogenic range was found to provide only a minor effect. Cryogenic rolling was thus concluded to impart no practical benefit with regard to grain refinement or property improvement for this material. In contrast, a change of strain path via cross rolling was shown to enhance twinning and shear banding and thus to promote the formation of a relatively homogeneous ultrafine-grain microstructure.

AB - The effect of cryogenic temperature and change of strain path on grain refinement during the rolling of Cu-30Zn brass was determined. To this end, the material was unidirectionally rolled or cross-rolled to 90% thickness reduction at either ambient or liquid-nitrogen temperatures, and the resulting grain structures and crystallographic textures were determined via electron backscatter diffraction (EBSD) technique. In all cases, grain refinement was found to be governed primarily by twinning and shear banding. Lowering of the rolling temperature to the cryogenic range was found to provide only a minor effect. Cryogenic rolling was thus concluded to impart no practical benefit with regard to grain refinement or property improvement for this material. In contrast, a change of strain path via cross rolling was shown to enhance twinning and shear banding and thus to promote the formation of a relatively homogeneous ultrafine-grain microstructure.

KW - change of strain path

KW - cryogenic deformation

KW - Cu-30Zn brass

KW - electron backscatter diffraction

KW - grain refinement

KW - grain structure

UR - http://www.scopus.com/inward/record.url?scp=84942250986&partnerID=8YFLogxK

U2 - 10.1016/j.matdes.2015.06.146

DO - 10.1016/j.matdes.2015.06.146

M3 - Article

VL - 86

SP - 913

EP - 921

JO - Materials & Design

T2 - Materials & Design

JF - Materials & Design

SN - 0261-3069

ER -