Characteristics of superplasticity domain in the processing map for hot working of an Al alloy 2014---20vol.%Al2O3 metal matrix composite
Data(s) |
15/07/1994
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Resumo |
The processing map for hot working of Al alloy 2014-20vol.%Al2O3 particulate-reinforced cast-plus-extruded composite material has been generated covering the temperature range 300-500 degrees C and the strain rate range 0.001-10 s(-1) based on the dynamic materials model. The efficiency eta of power dissipation given by 2m/(m + 1), where m is the strain rate sensitivity, is plotted as a function of temperature and strain rate to obtain a processing map. A domain of superplasticity has been identified, with a peak efficiency of 62% occurring at 500 degrees C and 0.001 s(-1). The characteristics of this domain have been studied with the help of microstructural evaluation and hot-ductility measurements. Microstructural instability is predicted at higher strain rates above (ls(-1)) and lower temperatures (less than 350 degrees C). |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/36276/1/superplasticity.pdf Radhakrishna Bhat , BV and Mahajan, YR and Roshan, HMd and Prasad, YVRK (1994) Characteristics of superplasticity domain in the processing map for hot working of an Al alloy 2014---20vol.%Al2O3 metal matrix composite. In: Materials Science and Engineering: A, 212 (1). 178-181 . |
Publicador |
Elsevier science |
Relação |
http://dx.doi.org/10.1016/0921-5093(94)90409-X http://eprints.iisc.ernet.in/36276/ |
Palavras-Chave | #Materials Engineering (formerly Metallurgy) |
Tipo |
Journal Article PeerReviewed |