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Study on the eutectic and post-eutectic reactions in LM13 aluminum alloy using cooling curve thermal analysis technique
University West, Department of Engineering Science, Division of Manufacturing Processes. (PTW)ORCID iD: 0000-0001-6242-3517
Iran University of Science and Technology (IUST), Center of Excellence for High Strength Alloys Technology (CEHSAT), School of Metallurgy and Materials Engineering, Narmak, Tehran, Iran.
2016 (English)In: Journal of thermal analysis and calorimetry (Print), ISSN 1388-6150, E-ISSN 1588-2926, Vol. 124, no 2, 611-617 p.Article in journal (Refereed) Published
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Abstract [en]

Effect of non-equilibrium solidification conditions on the eutectic and post-eutectic reactions temperature and percentage of the phases were investigated using computer-aided cooling curve thermal analysis. In addition, hardness, secondary dendrite arm spacing, and maximum pore size were studied at different cooling conditions. Cooling curves were determined by setting thermocouples in the center of the molds. Solid fractions were calculated by Newtonian baseline technique. Results showed that increasing the cooling rate shifted the temperature of post-eutectic reaction upward, except final reaction. Higher cooling rate increased eutectic percentage about 4 %, but reduced total percentage of post-eutectic phases. Additionally, increasing the cooling rate shortened the maximum porosity diameter and secondary dendrite arm spacing and increased the hardness of the alloy. © 2015 Akadémiai Kiadó, Budapest, Hungary

Place, publisher, year, edition, pages
Dordrecht: Kluwer Academic Publishers, 2016. Vol. 124, no 2, 611-617 p.
Keyword [en]
Aluminum alloys, Computer aided analysis, Eutectics, Hardness, Intermetallics, Mechanical properties, Phase diagrams, Pore size, Setting, Solidification, Thermoanalysis, Thermocouples, Cooling conditions, Cooling rates, Eutectic phasis, Eutectic reactions, Non-equilibrium solidification, Secondary dendrite arm spacing, Solid fraction, Thermal analysis techniques, Cooling
National Category
Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-8876DOI: 10.1007/s10973-015-5163-2ISI: 000373576600005ScopusID: 2-s2.0-84974845883OAI: oai:DiVA.org:hv-8876DiVA: diva2:891896
Note

First online: 10 December 2015

Available from: 2016-01-08 Created: 2016-01-08 Last updated: 2016-12-19Bibliographically approved

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