Compressive strength and hot deformation behavior of TX32 magnesium alloy with 0.4% Al and 0.4% Si additions

Research output: Journal contributionsJournal articlesResearchpeer-review

Authors

  • K. P. Rao
  • Y. V.R.K. Prasad
  • C. Dharmendra
  • N. Hort
  • K. U. Kainer

Mg-3wt.%Sn-2wt.%Ca (TX32) alloy has good corrosion and creep resistance although its strength does not match that of AZ31 alloy. In this paper, the influence of additions of 0.4wt.%Al and 0.4wt.%Si on the compressive strength and hot working characteristics of TX32 is reported. Although the room temperature compressive strength improved marginally with the alloying additions, the drop in higher-temperature strength is significant. By comparing with the alloy having only 0.4% Al, it is inferred that the Si addition is responsible for this deterioration. The hot working behavior is characterized by processing maps which revealed that TX32 exhibits two domains of dynamic recrystallization occurring in the temperature and strain rate ranges: (1) 300-350°C and 0.0003-0.001s-1 and (2) 390-500°C and 0.005-0.6s-1. In Al and Si containing TX32, both the domains moved to higher temperatures and the flow instability is reduced thereby improving the hot workability. In both the domains, the apparent activation energy is 177kJ/mol, which is higher than that for self-diffusion in magnesium implying that there is a significant contribution from the back stress generated by the hard particles present in the matrix.

Original languageEnglish
JournalMaterials Science and Engineering A
Volume528
Issue number22-23
Pages (from-to)6964-6970
Number of pages7
ISSN0921-5093
DOIs
Publication statusPublished - 25.08.2011
Externally publishedYes

    Research areas

  • Compressive strength, Hot workability, Kinetic analysis, Magnesium alloy, Processing maps
  • Engineering

Recently viewed

Activities

  1. 9th IFAC Symposium on Biological and Medical Systems - BMS 2015
  2. Return on Social Media Investment - Das Beispiel Prizeotel.
  3. Determinants of a corporate culture for lifelong competence development
  4. 4. Salzburger Tourismusforum - 2001
  5. NewMac Symposium - 2013
  6. Telecoupling. A current challenge to global environmental governance
  7. National University of Singapore
  8. Teachers' motivation for participating in professional development and its relationship to the uptake of professional development.
  9. Supporting Student Teachers in School: A Module-Based Training Concept for Mentors
  10. The COP24 Rulebook
  11. 6th International Conference on Virtual Worlds and Games for Serious Applications: VS-Games 2014
  12. Bridging Education and Science for Sustainable Development -2015
  13. Forschungs- und Transfermanagement e.V. (Externe Organisation)
  14. Thinking about the future and taking responsibility for oneself, others, and society
  15. Bauhaus-Universität Weimar (Externe Organisation)
  16. Einführung Digital Performance
  17. Projekte an der Waterfront in Hamburg
  18. Assessment options for students with special educational needs in large scale assessments
  19. European Meeting of the Econometric Society - ESEM / EEA Conference 2008
  20. ‘I think they are irresponsible.’ Teaching Sustainability with (Counter) Narratives in the Digital EFL Classroom
  21. International Conference on Advanced Intelligent Mechatronics - AIM 2014
  22. Actuators (Zeitschrift)
  23. Forschungsseminar, Newcastle University
  24. Sustainability Solutions Initiative - From Knowledge to Action
  25. Panel Moderation “Decolonizing Classical Music?! Musicians from the Global South on the European Stage”
  26. Path dependence: friend and foe for decision-making in organizations
  27. Schulinterne Lehrerfortbildung an der Oberschule am Wasserturm 2015
  28. Bioresource Technology (Fachzeitschrift)
  29. Representing Future Generations Today
  30. Netzöffentlichkeit im Wandel
  31. Transformation of the herbicide fluroxypyr under various/distinct environmental conditions