Grain refinement and microstructure evolution in aluminum A2618 alloy by high-pressure torsion

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This work presents a study related to the grain refinement of an aluminum A2618 alloy achieved by High-Pressure Torsion (HPT) known as a process of Severe Plastic Deformation (SPD). The HPT is conducted on disks of the alloy under an applied pressure of 6 GPa for 1 and 5 turns with a rotation speed of 1 rpm at room temperature. The HPT processing leads to microstructural refinement with an average grain size of ~250 nm at a saturation level after 5 turns. Gradual increases in hardness are observed from the beginning of straining up to a saturation level. This study thus suggests that hardening due to grain refinement is attained by the HPT processing of the A2618 alloy at room temperature.

Original languageEnglish
Pages (from-to)149-152
Number of pages4
JournalJurnal Teknologi
Volume78
Issue number6-9
DOIs
Publication statusPublished - 2016

Fingerprint

Grain refinement
Torsional stress
Aluminum alloys
Microstructure
Processing
Hardening
Plastic deformation
Hardness
Temperature

Keywords

  • Al alloy
  • Grain refinement
  • High-pressure torsion
  • Severe plastic deformation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Grain refinement and microstructure evolution in aluminum A2618 alloy by high-pressure torsion. / Intan Fadhlina, Mohamed; Lee, Seungwon; Edalati, Kaveh; Horita, Zenji; Abdullah, Shahrum; Omar, Mohd. Zaidi; W. Zamri, Wan Fathul Hakim.

In: Jurnal Teknologi, Vol. 78, No. 6-9, 2016, p. 149-152.

Research output: Contribution to journalArticle

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AU - Omar, Mohd. Zaidi

AU - W. Zamri, Wan Fathul Hakim

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