Correlation of physical parameters with steady-state hardness of pure metals processed by high-pressure torsion

Kaveh Edalati, Zenji Horita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

Pure metals of 30 elements with various crystal structures (bcc, fcc, hcp, diamond cubic, complex cubic, primitive hexagonal and tetragonal) are processed by high-pressure torsion (HPT) and their mechanical properties are subsequently evaluated by Vickers microhardness measurements. For all metals, the hardness reaches steady states at large strains where the hardness remains unchanged with further straining. It is shown that the hardness values at the steady state are characteristics of each metal and are successfully expressed as a unique function of the homologous temperature, shear modulus and physical parameters of metals such as melting temperature, specific heat capacity and diffusion coefficient except for a few elements. The findings are well applicable to predict the ultimate steady-state hardness of metals attained by HPT processing through the correlation established in this study.

Original languageEnglish
Title of host publicationNanomaterials by Severe Plastic Deformation, NanoSPD5
Pages683-688
Number of pages6
DOIs
Publication statusPublished - Feb 25 2011
Event5th International Conference on Nanomaterials by Severe Plastic Deformation, NanoSPD5 - Nanjing, China
Duration: Mar 21 2011Mar 25 2011

Publication series

NameMaterials Science Forum
Volume667-669
ISSN (Print)0255-5476

Other

Other5th International Conference on Nanomaterials by Severe Plastic Deformation, NanoSPD5
CountryChina
CityNanjing
Period3/21/113/25/11

Fingerprint

Torsional stress
torsion
hardness
Metals
Hardness
metals
Specific heat
specific heat
Diamond
Chemical elements
Microhardness
microhardness
Melting point
Diamonds
diffusion coefficient
Crystal structure
Elastic moduli
diamonds
melting
mechanical properties

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Edalati, K., & Horita, Z. (2011). Correlation of physical parameters with steady-state hardness of pure metals processed by high-pressure torsion. In Nanomaterials by Severe Plastic Deformation, NanoSPD5 (pp. 683-688). (Materials Science Forum; Vol. 667-669). https://doi.org/10.4028/www.scientific.net/MSF.667-669.683

Correlation of physical parameters with steady-state hardness of pure metals processed by high-pressure torsion. / Edalati, Kaveh; Horita, Zenji.

Nanomaterials by Severe Plastic Deformation, NanoSPD5. 2011. p. 683-688 (Materials Science Forum; Vol. 667-669).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Edalati, K & Horita, Z 2011, Correlation of physical parameters with steady-state hardness of pure metals processed by high-pressure torsion. in Nanomaterials by Severe Plastic Deformation, NanoSPD5. Materials Science Forum, vol. 667-669, pp. 683-688, 5th International Conference on Nanomaterials by Severe Plastic Deformation, NanoSPD5, Nanjing, China, 3/21/11. https://doi.org/10.4028/www.scientific.net/MSF.667-669.683
Edalati, Kaveh ; Horita, Zenji. / Correlation of physical parameters with steady-state hardness of pure metals processed by high-pressure torsion. Nanomaterials by Severe Plastic Deformation, NanoSPD5. 2011. pp. 683-688 (Materials Science Forum).
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