التفاصيل البيبلوغرافية
| العنوان: |
Microscale channels produced by micro friction stir channeling (μFSC) |
| المؤلفون: |
Sabor, Wagner C., Damásio, Daniel F. B., Tasnicenco, Rúben S., Sorger, Goncalo, Santos, Telmo G., Machado, Miguel A., Vidal, Catarina I. S. |
| المساهمون: |
DEMI - Departamento de Engenharia Mecânica e Industrial, UNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e Industrial, RUN |
| سنة النشر: |
2024 |
| وصف مادي: |
11 |
| مصطلحات موضوعية: |
AW1050-H111, Continuous channels, Internal microchannels, Micro friction stir channeling (μFSC), Process limits, Ceramics and Composites, Biomaterials, Surfaces, Coatings and Films, Metals and Alloys |
| الوصف: |
Funding Information: The authors acknowledge the Foundation for Science and Technology ( FCT - MCTES) for its financial support via the projects UIDB/00667/2020 and UIDP/00667/2020 ( UNIDEMI ). Funding Information: The authors acknowledge the Foundation for Science and Technology (FCT - MCTES) for its financial support via the projects UIDB/00667/2020 and UIDP/00667/2020 (UNIDEMI). We also thank the Federal Institute of Education, Science, and Technology of S\u00E3o Paulo for providing its infrastructure to produce the tools used in this research and carry out part of the \u03BCFSC tests. The authors would like to thank the Nuclear and Energy Research Institute (IPEN) in S\u00E3o Paulo, Brazil, and its researchers Ph.D. Marco A. Stanojev Pereira for the neutron tomography images obtained and Ph.D. Stela M. C. Fernandes for the optical microscopy images. Publisher Copyright: © 2024 The Authors |
| Description (Translated): |
The current literature lacks comprehensive research on the processing limits of the Friction Stir Channeling process (FSC) for creating the smallest continuous and integral channels, using tools with threaded probes 2 mm in diameter or smaller. This study pioneers the exploration of the extreme limits of the microscale FSC process, with potential applications in the development of ultra-compact heat exchangers, seeking to enhance the efficiency and sustainability of these systems. Customized tools were designed and manufactured, with predefined dimensions and geometries to establish a set of parameters that consistently produce continuous microchannels, maximizing the hydraulic diameter within the constraints of each tool's specifications and geometry. Comprehensive evaluations—including continuity, watertightness, micro-computed tomography, neutron computed tomography, microhardness testing, and thermal measurements—were conducted to ensure the channels' structural integrity and suitability for super-compact heating and cooling applications. Internal channels were successfully created using tools with threaded probes measuring 2.0, 1.0, and 0.5 mm in diameter, and corresponding shoulder diameters of 5, 4, and 3.5 mm, within 5 mm thick AW1050-H111 aluminum alloy plates. The smallest channel achieved a hydraulic diameter of 191 μm, using a 0.5 mm diameter threaded probe, thus qualifying it as a microchannel. The thermal performance of a compact heat exchanger model was also tested, demonstrating that despite the high cost associated with tool production, particularly due to the specialized manufacturing processes required, the FSC process remains viable, reliable, and repeatable for the production of mini- and micro-channels. |
| نوع الوثيقة: |
journal article |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
2238-7854; PURE: 99260612 |
| DOI: |
10.1016/j.jmrt.2024.08.139 |
| الاتاحة: |
http://hdl.handle.net/10362/173335 |
| Rights: |
open access |
| رقم الانضمام: |
rcaap.com.unl.run.unl.pt.10362.173335 |
| قاعدة البيانات: |
RCAAP |