High temperature deformation behavior of As-Cast Al-3Mg-).25Sc alloy
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
View Archive Info| Field | Value | |
| Title |
High temperature deformation behavior of As-Cast Al-3Mg-).25Sc alloy
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| Creator |
Suresh Kumar, M
Ambresha, M Venkateswarlu, K Ranganath, VR |
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| Subject |
Aeronautics (General)
Chemistry and Materials (General) |
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| Description |
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 opti-
22 mal hot working process.
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| Publisher |
Springer Boston
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| Date |
2014
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| Type |
Journal Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://nal-ir.nal.res.in/11983/1/meta_trans%2Dfinal1.pdf
Suresh Kumar, M and Ambresha, M and Venkateswarlu, K and Ranganath, VR (2014) High temperature deformation behavior of As-Cast Al-3Mg-).25Sc alloy. Metallurgical and Materials Transactions A . xxx-1. ISSN 1073-5623 |
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| Relation |
http://dx.doi.org/10.1007/s11661-014-2276-3
http://nal-ir.nal.res.in/11983/ |
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