Enhancement of strength and ductility of Al-Ag alloys processed by high-pressure torsion and aging

Seungwon Lee, Zenji Horita

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This research was conducted by the application of high-pressure torsion (HPT) to Al-X wt pct Ag alloys (X = 5, 11, 20). Grain refinement was achieved to the size of ∼300 nm after HPT processing at room temperature. The aging behavior of the alloys after HPT processing was investigated using Vickers microhardness measurement, tensile testing, scanning electron microscopy, and transmission electron microscopy. This study confirms the dual effect of grain refinement and fine precipitation on the enhancement of the strength. It is also shown that at peak-aged condition, the tensile strength is enhanced while maintaining considerable ductility.

Original languageEnglish
Pages (from-to)3221-3231
Number of pages11
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume44
Issue number7
DOIs
Publication statusPublished - Apr 30 2013

Fingerprint

ductility
Torsional stress
torsion
Ductility
Aging of materials
Grain refinement
augmentation
Tensile testing
Processing
Microhardness
microhardness
tensile strength
Tensile strength
Transmission electron microscopy
transmission electron microscopy
Scanning electron microscopy
scanning electron microscopy
room temperature
Temperature

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

Cite this

Enhancement of strength and ductility of Al-Ag alloys processed by high-pressure torsion and aging. / Lee, Seungwon; Horita, Zenji.

In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 44, No. 7, 30.04.2013, p. 3221-3231.

Research output: Contribution to journalArticle

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