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

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review

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.

Original languageEnglish
Title of host publicationMagnesium Technology 2013 - Held During the TMS 2013 Annual Meeting and Exhibition
EditorsNobert Hort, Suveen N Mathaudhu, Neale R. Neelameggham, Martyn Alderman
Number of pages5
PublisherThe Minerals, Metals & Materials Society
Publication date2013
Pages41-45
ISBN (print)9781118605523
ISBN (electronic)9781118663004
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event142nd Annual Meeting and Exhibition of the Magnesium Technology 2013 - TMS 2013 - San Antonio, TX, United States
Duration: 03.03.201307.03.2013
Conference number: 142
https://www.tms.org/meetings/annual-13/AM13news.aspx?id=4911

Bibliographical note

Copyright © 2013 The Minerals, Metals & Materials Society. All rights reserved.

    Research areas

  • Hot deformation, Kinetic analysis, Mg-Sn-Ca-Al-Si alloy, Processing map
  • Engineering