Microstructural Evolution, Tensile Failure, Fatigue Behavior and Wear Properties of Al2O3 Reinforced Al2014 Alloy T6 Heat Treated Metal Composites

V Bharath; V Auradi; G B Veeresh Kumar; Madeva Nagaral; Murthy Chavali; Mahmoud Helal; Rokayya Sami; N I Aljuraide; Jong Wan Hu; Ahmed M Galal

doi:10.3390/ma15124244

Microstructural Evolution, Tensile Failure, Fatigue Behavior and Wear Properties of Al₂O₃ Reinforced Al2014 Alloy T6 Heat Treated Metal Composites

Materials (Basel). 2022 Jun 15;15(12):4244. doi: 10.3390/ma15124244.

Authors

V Bharath¹, V Auradi², G B Veeresh Kumar³, Madeva Nagaral⁴, Murthy Chavali⁵, Mahmoud Helal^{6

7}, Rokayya Sami⁸, N I Aljuraide⁹, Jong Wan Hu^{10

11}, Ahmed M Galal^{7

12}

Affiliations

¹ Department of Mechanical Engineering, Sri Venkateshwara College of Engineering, Bengaluru 562157, Karnataka, India.
² Siddaganga Institute of Technology, Visvesvaraya Technological University, Tumakuru 572104, Karnataka, India.
³ National Institute of Technology-Andhra Pradesh, West Godavari (Dist.), Tadepalligudem 534101, Andhra Pradesh, India.
⁴ Aircraft Research and Design Centre (ARDC), HAL Vimanapura Post, Marathahalli, Bangalore 560037, Karnataka, India.
⁵ Office of the Dean (Research) & Division of Chemistry, Department of Science, Faculty of Science & Technology, Alliance University (Central Campus), Chandapura-Anekal Main Road, Bengaluru 562106, Karnataka, India.
⁶ Department of Mechanical Engineering, Faculty of Engineering, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
⁷ Production Engineering and Mechanical Design Department, Faculty of Engineering, Mansoura University, Mansoura P.O. Box 35516, Egypt.
⁸ Department of Food Science and Nutrition, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
⁹ Department of Physics, Turabah Branch, Turabah University College, Taif University, Taif 21944, Saudi Arabia.
¹⁰ Department of Civil and Environmental Engineering, Incheon National University, Incheon 22012, Korea.
¹¹ Incheon Disaster Prevention Research Center, Incheon National University, Incheon 22012, Korea.
¹² Mechanical Engineering Department, College of Engineering, Prince Sattam Bin Abdulaziz University, Wadiaddawaser 11991, Saudi Arabia.

Abstract

The paper focused on an experimental study on the microstructural, mechanical, and wear characteristics of 15 wt.% alumina (Al₂O₃) particulates with an average particle size of 20 µm, reinforced in Al2014 alloy matrix composite as-cast and heat-treated samples. The metal matrix composite (MMC)samples were produced via a novel two-stage stir-casting technique. The fabricated composite samples were subjected to evaluate hardness, tensile strength, fatigue behavior and wear properties for both as cast and T6 heat-treated test samples. The Al2014 alloy and Al2014-15 wt.% Al₂O₃ MMCs were in solution for 1 h at a temperature of 525 °C, quenched instantly in cold water, and then artificially aged for 10 h at a temperature of 175 °C. SEM and X-ray diffraction analyses were used to investigate the microstructure and dispersion of the reinforced Al₂O₃ particles in the composite and the base alloy Al2014. The obtained results indicated that the hardness, tensile and fatigue strength and wear resistance increased when an amount of Al₂O₃ particles was added, compared to the as-cast Al2014 alloy and it was observed that after subjecting the same composite samples to heat treatment, there was further enhancement in the mechanical and wear properties in the Al2014 matrix alloy and Al2014-15 wt.% Al₂O₃ composite samples.

Keywords: Al2014; Al2O3; fatigue studies; heat treatment; mechanical properties.

Grants and funding

21CFRP-C163381-01/This work is supported by the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (Grant 21CFRP-C163381-01).