Al2014-Alumina Aerospace Composites: Particle Size Impacts on Microstructure, Mechanical, Fractography, and Wear Characteristics.

Autor: Murthy BV; Department of Mechanical Engineering, RNS Institute of Technology, Visvesvaraya Technological University, Bengaluru 560098, Karnataka, India., Auradi V; Department of Mechanical Engineering, Siddaganga Institute of Technology, Visvesvaraya Technological University, Tumakuru 572103, Karnataka, India., Nagaral M; Aircraft Research and Design Centre, HAL, Bengaluru 560037, Karnataka, India., Vatnalmath M; Department of Mechanical Engineering, Siddaganga Institute of Technology, Visvesvaraya Technological University, Tumakuru 572103, Karnataka, India., Namdev N; Department of Mechanical Engineering, APS Polytechnic, Bengaluru 560082, Karnataka, India., Anjinappa C; Department of Mechanical Engineering, Bangalore Institute of Technology, Bengaluru 560004, Karnataka, India., Patil S; Department of Mechanical, School of Engineering, REVA University, Bengaluru 560063, Karnataka, India., Razak A; Department of Mechanical Engineering, P. A. College of Engineering (Affiliated to Visvesvaraya Technological University, Belagavi), Mangaluru 574153, Karnataka, India., Alsabhan AH; Department of Civil Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia., Alam S; Department of Civil Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia., Qamar MO; Department of Civil Engineering (Environmental Science & Engineering), Yeungnam University, Gyeongsan 38541, South Korea.
Jazyk: angličtina
Zdroj: ACS omega [ACS Omega] 2023 Mar 27; Vol. 8 (14), pp. 13444-13455. Date of Electronic Publication: 2023 Mar 27 (Print Publication: 2023).
DOI: 10.1021/acsomega.3c01163
Abstrakt: An Al2014-alumina (Al 2 O 3 ) composite's characteristics are significantly influenced by the reinforcement particle size variation. Therefore, this study examines the microstructure, mechanical, fractography, and wear performance of an Al2014-Al 2 O 3p composite made using a unique two-stage stir casting method and various alumina weight fractions (9, 12, and 15 wt %). Three categories of alumina particle size are used, i.e., fine particle size (FPS, 8 μm), intermediate particle size (IPS, 53 μm), and coarse particle size (CPS, 88 μm). The shapes of the composites were characterized using scanning electron microscopy. According to scanning electron microscopic analyses of the microstructure, the FPS dispersion was more uniform than IPS and CPS, whereas CPS causes agglomeration. Additionally, the studies show that the FPS composite outperformed CPS and IPS composites in terms of mechanical characteristics and wear performance. The fractography study shows conical and equiaxed dimple failure in the Al2014 matrix and the circular cavities.
Competing Interests: The authors declare no competing financial interest.
(© 2023 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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