High Temperature Deformation Behavior of As-Cast Al-3Mg-0.25Sc Alloy View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2014-04-19

AUTHORS

M. Suresh Kumar, Ambresha, K. Venkateswarlu, V. R. Ranganath

ABSTRACT

High temperature deformation behavior of as-cast Al-3Mg-0.25Sc alloy was characterized in a wide range of temperatures 573 K to 773 K (300 °C to 500 °C) and strain rates (0.001 to 10 s−1). A threshold stress behavior is observed in the temperature range of 573 K to 673 K (300 °C to 400 °C) due to interaction of dislocations with precipitates. In the temperature range of 573 K to 623 K (300 °C to 350 °C), the dislocations are pinned by precipitates, following Orowan-bowing mechanism. At 673 K (400 °C), the dislocations bypass the particles by climb process. At high temperature and low strain rate of 723 K (450 °C), and 0.001 s−1, respectively, the alloy exhibited high efficiency of power dissipation for optimal hot working process. More... »

PAGES

3179-3183

References to SciGraph publications

  • 2001-12. The adiabatic correction factor for deformation heating during the uniaxial compression test in JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
  • 2004-01. A study of coarsening, recrystallization, and morphology of microstructure in Al-Sc-(Zr)-(Mg) alloys in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • 1985-08. Constitution and age hardening of Al-Sc alloys in JOURNAL OF MATERIALS SCIENCE
  • 1995-12. Creep strengthening in a discontinuous SiC-Al composite in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • 1974-11. Deformation mechanism maps based on grain size in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 2002-05. Deformation mechanisms during low-and high-temperature superplasticity in 5083 Al-Mg alloy in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • 1990-01. Mechanical properties and microstructures of Al-Mg-Sc alloys in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • Identifiers

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    http://scigraph.springernature.com/pub.10.1007/s11661-014-2276-3

    DOI

    http://dx.doi.org/10.1007/s11661-014-2276-3

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