Grain refinement of high-purity FCC metals using equal-channel angular pressing

Zenji Horita, Kaoru Kishikawa, Keiichi Kimura, Kohei Tatsumi, Terence G. Langdon

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

17 Citations (Scopus)

Abstract

Equal-channel angular pressing (ECAP) is a valuable technique for refining grain sizes to the submicrometer or the nanometer range. This study explores the reason for the difference in the grain refining behavior between pure Al and pure Cu. First, very high purity levels were adopted in order to minimize any effects of impurities: 99.999% for Al and 99.99999% for Cu. Second, high purity (99.999%) Au was also used in order to examine the effect of stacking fault energy. All three pure metals were subjected to ECAP and microstructural observations and hardness measurements were undertaken with respect to the number of ECAP passes. It is concluded that the stacking fault energy plays an important role and accounts for the difference in the grain refining behavior in the ECAP process.

Original languageEnglish
Title of host publicationMaterials Science Forum
Pages1273-1278
Number of pages6
Volume558-559
EditionPART 2
Publication statusPublished - 2007
Externally publishedYes
Event3rd International Conference on Recrystallization and Grain Growth, ReX GG III - Jeju Island
Duration: 2007 Jun 102007 Jun 15

Publication series

NameMaterials Science Forum
NumberPART 2
Volume558-559
ISSN (Print)02555476

Other

Other3rd International Conference on Recrystallization and Grain Growth, ReX GG III
CityJeju Island
Period07/6/1007/6/15

Fingerprint

Metal pressing
Equal channel angular pressing
Grain refinement
Refining
Stacking faults
Metals
Hardness
Impurities

Keywords

  • EBSD
  • Equal channel angular pressing (ECAP)
  • FCC metals
  • Hardness
  • Severe plastic deformation (SPD)
  • Stacking fault energy
  • Ultrafine grain sizes

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Horita, Z., Kishikawa, K., Kimura, K., Tatsumi, K., & Langdon, T. G. (2007). Grain refinement of high-purity FCC metals using equal-channel angular pressing. In Materials Science Forum (PART 2 ed., Vol. 558-559, pp. 1273-1278). (Materials Science Forum; Vol. 558-559, No. PART 2).

Grain refinement of high-purity FCC metals using equal-channel angular pressing. / Horita, Zenji; Kishikawa, Kaoru; Kimura, Keiichi; Tatsumi, Kohei; Langdon, Terence G.

Materials Science Forum. Vol. 558-559 PART 2. ed. 2007. p. 1273-1278 (Materials Science Forum; Vol. 558-559, No. PART 2).

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

Horita, Z, Kishikawa, K, Kimura, K, Tatsumi, K & Langdon, TG 2007, Grain refinement of high-purity FCC metals using equal-channel angular pressing. in Materials Science Forum. PART 2 edn, vol. 558-559, Materials Science Forum, no. PART 2, vol. 558-559, pp. 1273-1278, 3rd International Conference on Recrystallization and Grain Growth, ReX GG III, Jeju Island, 07/6/10.
Horita Z, Kishikawa K, Kimura K, Tatsumi K, Langdon TG. Grain refinement of high-purity FCC metals using equal-channel angular pressing. In Materials Science Forum. PART 2 ed. Vol. 558-559. 2007. p. 1273-1278. (Materials Science Forum; PART 2).
Horita, Zenji ; Kishikawa, Kaoru ; Kimura, Keiichi ; Tatsumi, Kohei ; Langdon, Terence G. / Grain refinement of high-purity FCC metals using equal-channel angular pressing. Materials Science Forum. Vol. 558-559 PART 2. ed. 2007. pp. 1273-1278 (Materials Science Forum; PART 2).
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