Mechanical Characterization and Wear Behavior of Nano TiO2 Particulates Reinforced Al7075 Alloy Composites

Authors

  • Madeva Nagaral Aircraft Research and Design Centre, Hindustan Aeronautics Limited, Bangalore, Karnataka, India-560037
  • S A Kori Department of Mechanical Engineering, Basaveshwar Engineering College, Bagalkot, Karnataka, India-587102
  • V Auradi Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumkur, Karnataka, India-572103
  • Veena Shivaprasad Department of Physics, Sir M Visvesvaraya Institute of Technology, Bangalore, Karnataka, India-562157
Abstract:

In the current research work synthesis, characterization, mechanical and wear behavior of 5 and 10 wt. % of nano TiO2 particulates reinforced Al7075 alloy composites are inspected. The Al7075 alloy and nano TiO2 particle composites were provided by melt stir system. After the preparation, the prepared composites were analyzed by SEM, EDS, and XRD for inquiring the microstructures and chemical elements. Furthermore, mechanical and wear behavior of as cast Al7075 alloy and Al7075 -5 and 10 wt. % of nano TiO2 composites were examined. Mechanical properties like hardness, UTS, yield quality, and ductility were assessed pursuant to ASTM measures. Pin on disc contraption was applied in order to lead the dry sliding wear tests. The analyses were led by differing loads and sliding speeds for a sliding distance of 3000 m. From the examination, it was discovered that the hardness, extreme strength and yield quality of composites were expanded because of nano TiO2 particles in the Al7075 amalgam grid. In nano TiO2 fortified composites the rate extension was diminished. Moreover, there was an expansion in the volumetric wear misfortune concerning the load, speed and sliding distance for all the readied materials. In order to inspect the fractography and dissimilar wear mechanisms for various test conditions of different compositions, tensile fractured surfaces and the worn surface morphology were analyzed by scanning electron microscope.

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Journal title

volume 7  issue 1

pages  71- 78

publication date 2020-04-01

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