Creep behavior of AE42 based hybrid composites

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

  • A. Arunachaleswaran
  • I. M. Pereira
  • H. Dieringa
  • Y. Huang
  • N. Hort
  • B. K. Dhindaw
  • K. U. Kainer

Magnesium alloy based hybrid composites with varying levels of δ-alumina short fibers (Saffilf®) and SiC particles (SiCp) reinforcements have been prepared by the squeeze casting technique. The results of the studies done on the basis of microstructural changes and compression creep tests show that the composites with 10 vol% Saffilf® + 15 vol% SiCp exhibits relatively better creep resistance compared to its other counterparts with 10 vol% Saffilf® + 10 vol% SiCp and 15 vol% Saffilf® + 5 vol% SiCP. The effect of solutionising heat treatment on these composites does not yield any remarkable improvement in its creep properties. Investigations on these composites reveal the presence of Mg2Si and Al-RE precipitates. The presence of these precipitates was found to enhance the creep resistance of AE42 hybrid composites. The composites were found to exhibit threshold creep behavior as expected. The effective stress exponents and the activation energy values calculated suggest that 'glide and high temperature climb of dislocations' as the predominant creep mechanism. The interfacial reaction products were MgO and Mg2Si. The interfacial reaction product MgO is more pronounced along the Saffilf® compared to SiCp. A similar behavior was observed in composites before and after heat treatment.

OriginalspracheEnglisch
ZeitschriftMaterials Science and Engineering A
Jahrgang460-461
Seiten (von - bis)268-276
Anzahl der Seiten9
ISSN0921-5093
DOIs
PublikationsstatusErschienen - 15.07.2007
Extern publiziertJa

DOI

Zuletzt angesehen

Publikationen

  1. Rethinking Economic Practices and Values As Assemblages of More-Than-Human Relations
  2. Automated Fabrication of Elastomeric Prepregs for Soft Robotics Applications
  3. Load, Release and Fire
  4. Modeling the effect of workpiece temperature on micromagnetic high-speed-3MA-testing in case of AISI 4140
  5. Learning with summaries
  6. Formalised and Non-Formalised Methods in Resource Management-Knowledge and Social Learning in Participatory Processes
  7. BUSINESS MODELS IN BANKING: A CLUSTER ANALYSIS USING ARCHIVAL DATA
  8. Optimization of a gaseous multitube detector for soft X-ray detection
  9. Geometric structures using model predictive control for an electromagnetic actuator
  10. The Influence of Robots’ Emotion Expressions on the Uncanny-Valley-Effect
  11. Decoding evidence-based entrepreneurship
  12. The relationship between resilience and sustainable development of ecological-economic systems
  13. Comparative study on corrosion behavior of we33 in immersion and polarization influenced by heat treatment
  14. Modelling lateness and schedule reliability
  15. Biodiversity in space and time - towards a grid mapping for Mongolia
  16. Ontology-based automatic classification for Web pages
  17. Deconstructing and reconstructing diversity in client-provider-relationships of social work
  18. Developing pragmatic competence using EFL textbooks: Focus on requests
  19. Explaining the (Non-) Adoption of Advanced Data Analytics in Auditing
  20. A tale of scale: Plot but not neighbourhood tree diversity increases leaf litter ant diversity
  21. What drives the spatial distribution and dynamics of local species richness in tropical forest?
  22. E-collaborative knowledge construction in chat environments
  23. The effectiveness of nudging
  24. Using ‘mixed methods’ in sustainable consumption research
  25. A Multilab Replication of the Ego Depletion Effect
  26. Process limits of extrusion of multimaterial components
  27. Lautheitskonstanz oder Range-Effekt?
  28. Can isometric testing substitute for the one repetition maximum squat test?
  29. On "Sourcery," or Code as Fetish

Presse / Medien

  1. Computersimulation