High temperature deformation of magnesium alloy TX32-0.4Al-0.8Si

Publikation: Beiträge in SammelwerkenAufsätze in KonferenzbändenForschungbegutachtet

Authors

  • C. Dharmendra
  • K. P. Rao
  • N. Hort
  • K. U. Kainer

The effect of aluminum and silicon as micro-alloying elements in TX32 magnesium alloy on its hot deformation behavior has been studied by conducting uniaxial compression tests at various combinations of temperatures and strain rates in the ranges 300-500°C and 0.0003-10 s-1. A processing map has been developed and the effect of processing conditions on deformation behavior has been analyzed. Two processing windows that enable good hot working of the alloy are identified at (1) 390-500°C/0.0003-0.005 s-1 (Domain 1), (2) 430-500°C/0.3-10 s-1 (Domain 2). The kinetic analysis is obeyed in these two domains and the relevant apparent activation energy values are found to be 215 and 170 kJ/mole respectively. These are higher than that for self-diffusion in magnesium suggesting that intermetallic particles present in the matrix generate back stress.

OriginalspracheEnglisch
TitelMagnesium Technology 2013 - Held During the TMS 2013 Annual Meeting and Exhibition
HerausgeberNobert Hort, Suveen N Mathaudhu, Neale R. Neelameggham, Martyn Alderman
Anzahl der Seiten5
VerlagThe Minerals, Metals & Materials Society
Erscheinungsdatum2013
Seiten41-45
ISBN (Print)9781118605523
ISBN (elektronisch)9781118663004
DOIs
PublikationsstatusErschienen - 2013
Extern publiziertJa
Veranstaltung142nd Annual Meeting and Exhibition of the Magnesium Technology 2013 - TMS 2013 - San Antonio, TX, USA / Vereinigte Staaten
Dauer: 03.03.201307.03.2013
Konferenznummer: 142
https://www.tms.org/meetings/annual-13/AM13news.aspx?id=4911

DOI