Microstructure and Mechanical Properties of Ni Matrix B4C Reinforced Functionally Graded Composites

  • Ugur Caligulu Department of Metallurgical and Materials Engineering, Faculty of Technology, Firat University
  • Hulya Durmus Deparment of Metallurgical and Materials Engineering, Faculty of Engineering, Celal Bayar University
  • Mehmet Akkas Department of Mechanical Engineering, Faculty of Engineering and Architecture, Kastamonu University
  • Hulya Durmus Department of Metallurgical and Materials Engineering, Faculty of Technology, Firat University

Abstract

In this study, microstructure and mechanical properties of nickel matrix B4C reinforced functionally graded composites produced by powder metallurgy method were investigated. Samples with Ni+5% B4C, Ni+10% B4C, Ni+15% B4C and Ni+20% B4C compositions were sintered at 900 and 1050 oC for 60 minutes. Microhardness and wear tests along with optical microscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX) and X-ray diffraction (XRD) analyses were carried out to determine the mechanical properties, microstructure and phase composition of the samples. The results indicated that hardness and wear resistance increased with increases of B4C amount in nickel matrix.

Published
2021-11-20
Section
Articles