Effect of precipitation structure on the work hardening process in a medium strength AlZnMg alloy

I. Kovács, J. Lendvai, G. Vörös

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The work hardening process taking place in a medium strength AlZnMg alloy at different temperatures and strain rates has been investigated. The effect of the precipitation structure was studied after the application of two different ageing treatments. The behaviour of some characteristic properties of the stress strain curves is analysed on the basis of a new hardening law. It was obtained that the work hardening decreases strongly with increasing temperature and it becomes zero at about 200 °C, which is a consequence of an equal rate of accumulation and annihilation of dislocations around the second phase particles.

Original languageEnglish
Pages (from-to)1275-1280
Number of pages6
JournalMaterials Science Forum
Volume217-222
Issue numberPART 2
Publication statusPublished - Dec 1 1996

Keywords

  • AlZnMg alloys
  • Particle hardening
  • Stress-strain curves
  • Work hardening

ASJC Scopus subject areas

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

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