Response of Al-Based Micro- and Nanocomposites to Rapid Fluctuations in Thermal Environments

Response of Al-Based Micro- and Nanocomposites to Rapid Fluctuations in Thermal Environments JMEPEG ASM International https://doi.org/10.1007/s11665-018-3437-0 1059-9495/$19.00 Response of Al-Based Micro- and Nanocomposites to Rapid Fluctuations in Thermal Environments K. Dash and B.C. Ray (Submitted June 20, 2017; in revised form May 1, 2018) The focus of this work is to highlight the relative response of Al-based micro- and nanocomposites in the form of enhancement in flexural strength via induced thermal stresses at high and cryogenic temperatures in ex situ and in situ atmospheres. In this investigation, we have tried to explore the reliability, matrix- reinforcement interaction and microstructural integrity of these materials in their service period by designing appropriate heat treatment regimes. Al-Al O micro- and nanocomposites had been fabricated by 2 3 powder processing method. The micro- and nanocomposites were subjected to down-thermal shock (from positive to negative temperature) and up-thermal shock (from negative to positive temperature) with varying thermal gradients. For isothermal conditioning, the composites were exposed to + 80 and 2 80 C for 1 h separately. High-temperature three-point flexural tests were performed at 100 and 250 C on the composites. All the composites subjected to thermal shock and isothermal conditioning was tested in three- point flexural mode post-treatments. Al-1 vol.% Al O nanocomposites flexural strength improved http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Engineering and Performance Springer Journals

Response of Al-Based Micro- and Nanocomposites to Rapid Fluctuations in Thermal Environments

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Publisher
Springer US
Copyright
Copyright © 2018 by ASM International
Subject
Materials Science; Characterization and Evaluation of Materials; Tribology, Corrosion and Coatings; Quality Control, Reliability, Safety and Risk; Engineering Design
ISSN
1059-9495
eISSN
1544-1024
D.O.I.
10.1007/s11665-018-3437-0
Publisher site
See Article on Publisher Site

Abstract

JMEPEG ASM International https://doi.org/10.1007/s11665-018-3437-0 1059-9495/$19.00 Response of Al-Based Micro- and Nanocomposites to Rapid Fluctuations in Thermal Environments K. Dash and B.C. Ray (Submitted June 20, 2017; in revised form May 1, 2018) The focus of this work is to highlight the relative response of Al-based micro- and nanocomposites in the form of enhancement in flexural strength via induced thermal stresses at high and cryogenic temperatures in ex situ and in situ atmospheres. In this investigation, we have tried to explore the reliability, matrix- reinforcement interaction and microstructural integrity of these materials in their service period by designing appropriate heat treatment regimes. Al-Al O micro- and nanocomposites had been fabricated by 2 3 powder processing method. The micro- and nanocomposites were subjected to down-thermal shock (from positive to negative temperature) and up-thermal shock (from negative to positive temperature) with varying thermal gradients. For isothermal conditioning, the composites were exposed to + 80 and 2 80 C for 1 h separately. High-temperature three-point flexural tests were performed at 100 and 250 C on the composites. All the composites subjected to thermal shock and isothermal conditioning was tested in three- point flexural mode post-treatments. Al-1 vol.% Al O nanocomposites flexural strength improved

Journal

Journal of Materials Engineering and PerformanceSpringer Journals

Published: May 30, 2018

References

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