Microstructural Characterization and Thermomechanical Behavior of Additively Manufactured AlSi10Mg Material and Architected Cellular Structures

Alya Alhammadi, Kamran A. Khan, Oraib Al-Ketan, Mohamed I.Hassan Ali, Reza Rowshan, Rashid K. Abu Al-Rub

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Additive manufacturing facilitated the fabrication of novel and new thermal management devices. Of interest, they are lattice-based heat sinks and heat exchangers. The advantage of using lattices to propose novel thermal management devices is the fact that they provide high surface area to volume ratio which maximizes the area of heat transfer in a specific volume. However, since these lattice-based thermal management devices are undergoing large thermal gradients, it is important to investigate their mechanical properties at different temperature. In this work, the potential of employing metallic lattice as heat sinks is studied through mimicking the high temperature operation conditions and the resulting thermomechanical loads experienced by the heat sink. The proposed heat sinks are sheet-based lattices with topologies based on the Schwartz diamond (D) triply periodic minimal surfaces (TPMS). Aluminum Diamond TPMS lattices are additively manufactured and tested under compression at 25 and 150 ℃. Results showed that variation in mechanical properties with temperature was most pronounced at higher relative densities, whereas the variation was minimal in lower relative densities. The results show that AlSi10Mg diamond TPMS lattices have excellent thermal and mechanical properties making them ideal for thermal management applications.

Original languageEnglish (US)
Title of host publicationTMS 2020 149th Annual Meeting and Exhibition Supplemental Proceedings
EditorsZhiwei Peng, Jiann-Yang Hwang, Jerome Downey, Dean Gregurek, Baojun Zhao, Onuralp Yucel, Ender Keskinkilic, Tao Jiang, Jesse White, Morsi Mahmoud
PublisherSpringer
Pages165-173
Number of pages9
ISBN (Print)9783030362959
DOIs
StatePublished - 2020
Event149th Annual Meeting and Exhibition of the Minerals, Metals and Materials Society, TMS 2020 - San Diego, United States
Duration: Feb 23 2020Feb 27 2020

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

Conference149th Annual Meeting and Exhibition of the Minerals, Metals and Materials Society, TMS 2020
CountryUnited States
CitySan Diego
Period2/23/202/27/20

Keywords

  • Additive manufacturing
  • Heat sinks
  • Powder bed fusion
  • TPMS
  • Thermal management

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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  • Cite this

    Alhammadi, A., Khan, K. A., Al-Ketan, O., Ali, M. I. H., Rowshan, R., & Abu Al-Rub, R. K. (2020). Microstructural Characterization and Thermomechanical Behavior of Additively Manufactured AlSi10Mg Material and Architected Cellular Structures. In Z. Peng, J-Y. Hwang, J. Downey, D. Gregurek, B. Zhao, O. Yucel, E. Keskinkilic, T. Jiang, J. White, & M. Mahmoud (Eds.), TMS 2020 149th Annual Meeting and Exhibition Supplemental Proceedings (pp. 165-173). (Minerals, Metals and Materials Series). Springer. https://doi.org/10.1007/978-3-030-36296-6_15