Plastic behavior of face-centered-cubic metals over a wide range of strain

N. Chinh, Tamás Csanádi, J. Gubicza, Terence G. Langdon

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The plastic behavior of four pure face-centered-cubic (fcc) metals (Al, Au, Cu and Ni) was studied at room temperature up to a strain value of ∼8 achieved by severe plastic deformation. It is shown that at high strains the saturation flow stress and the total dislocation density can be scaled with the melting point, and the deformation process can be regarded as steady-state flow leading to a uniform description of the plastic behavior of these fcc metals at all temperatures. The results suggest that the plastic flow at room temperature of fcc metals processed by severe deformation is primarily attributable to diffusion-controlled and thermally activated processes due to the high concentration of deformation-induced vacancies.

Original languageEnglish
Pages (from-to)5015-5021
Number of pages7
JournalActa Materialia
Volume58
Issue number15
DOIs
Publication statusPublished - Sep 2010

Fingerprint

Metals
Plastics
Plastic flow
Temperature
Vacancies
Melting point
Plastic deformation

Keywords

  • Face-centered-cubic metals
  • Melting point
  • Plastic deformation
  • Severe plastic deformation (SPD)
  • Thermally activated processes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Metals and Alloys
  • Polymers and Plastics
  • Electronic, Optical and Magnetic Materials

Cite this

Plastic behavior of face-centered-cubic metals over a wide range of strain. / Chinh, N.; Csanádi, Tamás; Gubicza, J.; Langdon, Terence G.

In: Acta Materialia, Vol. 58, No. 15, 09.2010, p. 5015-5021.

Research output: Contribution to journalArticle

Chinh, N. ; Csanádi, Tamás ; Gubicza, J. ; Langdon, Terence G. / Plastic behavior of face-centered-cubic metals over a wide range of strain. In: Acta Materialia. 2010 ; Vol. 58, No. 15. pp. 5015-5021.
@article{1a062a9689844a0bb72bdc9ccbd1bfff,
title = "Plastic behavior of face-centered-cubic metals over a wide range of strain",
abstract = "The plastic behavior of four pure face-centered-cubic (fcc) metals (Al, Au, Cu and Ni) was studied at room temperature up to a strain value of ∼8 achieved by severe plastic deformation. It is shown that at high strains the saturation flow stress and the total dislocation density can be scaled with the melting point, and the deformation process can be regarded as steady-state flow leading to a uniform description of the plastic behavior of these fcc metals at all temperatures. The results suggest that the plastic flow at room temperature of fcc metals processed by severe deformation is primarily attributable to diffusion-controlled and thermally activated processes due to the high concentration of deformation-induced vacancies.",
keywords = "Face-centered-cubic metals, Melting point, Plastic deformation, Severe plastic deformation (SPD), Thermally activated processes",
author = "N. Chinh and Tam{\'a}s Csan{\'a}di and J. Gubicza and Langdon, {Terence G.}",
year = "2010",
month = "9",
doi = "10.1016/j.actamat.2010.05.036",
language = "English",
volume = "58",
pages = "5015--5021",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier Limited",
number = "15",

}

TY - JOUR

T1 - Plastic behavior of face-centered-cubic metals over a wide range of strain

AU - Chinh, N.

AU - Csanádi, Tamás

AU - Gubicza, J.

AU - Langdon, Terence G.

PY - 2010/9

Y1 - 2010/9

N2 - The plastic behavior of four pure face-centered-cubic (fcc) metals (Al, Au, Cu and Ni) was studied at room temperature up to a strain value of ∼8 achieved by severe plastic deformation. It is shown that at high strains the saturation flow stress and the total dislocation density can be scaled with the melting point, and the deformation process can be regarded as steady-state flow leading to a uniform description of the plastic behavior of these fcc metals at all temperatures. The results suggest that the plastic flow at room temperature of fcc metals processed by severe deformation is primarily attributable to diffusion-controlled and thermally activated processes due to the high concentration of deformation-induced vacancies.

AB - The plastic behavior of four pure face-centered-cubic (fcc) metals (Al, Au, Cu and Ni) was studied at room temperature up to a strain value of ∼8 achieved by severe plastic deformation. It is shown that at high strains the saturation flow stress and the total dislocation density can be scaled with the melting point, and the deformation process can be regarded as steady-state flow leading to a uniform description of the plastic behavior of these fcc metals at all temperatures. The results suggest that the plastic flow at room temperature of fcc metals processed by severe deformation is primarily attributable to diffusion-controlled and thermally activated processes due to the high concentration of deformation-induced vacancies.

KW - Face-centered-cubic metals

KW - Melting point

KW - Plastic deformation

KW - Severe plastic deformation (SPD)

KW - Thermally activated processes

UR - http://www.scopus.com/inward/record.url?scp=77955415297&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955415297&partnerID=8YFLogxK

U2 - 10.1016/j.actamat.2010.05.036

DO - 10.1016/j.actamat.2010.05.036

M3 - Article

AN - SCOPUS:77955415297

VL - 58

SP - 5015

EP - 5021

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

IS - 15

ER -