Issue 48

P.H. Nayak et alii, Frattura ed Integrità Strutturale, 48 (2019) 370-376; DOI: 10.3221/IGF-ESIS.48.35 370 Characterization and tensile fractography of nano ZrO 2 reinforced Copper-Zinc alloy composites Prasad H. Nayak VTU RRC, Belgaum, Dept. of Mechanical Engineering, Oxford College of Engineering, Bangalore, Karnataka, India Prasadnayak990@gmail.com H. K. Srinivas Dept. of Mechanical Engineering, SJBIT, Bangalore, Karnataka, India Madeva Nagaral Aircraft Research and Design Centre, Hindustan Aeronautics Limited, Bangalore, Karnataka, India madev.nagaral@gmail.com, http://orcid.org/0000-0002-8248-7603 V. Auradi Dept. of Mechanical Engineering, SIT, Tumkur, Karnataka, India vsauradi@gmail.com A BSTRACT . Nano particulates fortified metal lattice composites are finding extensive variety of utilizations in car and sports hardware fabricating businesses. In the present investigation, an endeavor has been made to create copper-zinc-nano ZrO 2 particulates strengthened composites by utilizing fluid liquefy technique. 4, 8 and 12 wt. % of nano ZrO 2 particulates were added to the Cu-Zn base grid. Microstructural studies were finished by utilizing SEM and EDS examination. Mechanical behavior of Cu-Zn-4, 8, 12 wt. % of nano ZrO 2 composites were assessed according to ASTM benchmarks. Checking electron micrographs uncovered the uniform dispersion of nano ZrO 2 particulates in the copper zinc composite network. EDS examination affirmed the nearness of Zr and O components in nano ZrO 2 strengthened composites. Further, it was noticed that hardness, UTS, yield quality of Cu- Zn composite expanded with the expansion of 4, 8 and 12 wt. % of nano ZrO 2 particulates. Ductility of nano composites was decreased by adding zirconium oxide particulates. Fractography of tensile specimens were carried out by using SEM micrographs to understand the failure mechanisms. K EYWORDS . Cu-Zn Alloy; Nano ZrO 2 Particulates; Liquid Melt Method; Mechanical Behavior; Fractography. Citation: Prasad, H., N., Srinivas, H, K., Nagaral, M., Auradi, V., Characterization and tensile fractography of nano ZrO 2 reinforced copper zinc alloy composites, Frattura ed IntegritàStrutturale, 48 (2019) 370-376. Received: 17.11.2018 Accepted: 21.01.2019 Published: 01.04.2019 Copyright: © 2019 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.