PRODUCTION AND CHARACTERIZATION OF Al-xNi IN SITU COMPOSITES USING HOT PRESSING

Yamanoglu R.

JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY, vol.50, no.1, pp.45-52, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 50 Issue: 1
  • Publication Date: 2014
  • Doi Number: 10.2298/jmmb130717001y
  • Journal Name: JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.45-52
  • Keywords: Aluminium, nickel, hot pressing, in-situ composite, MECHANICAL-PROPERTIES, MATRIX COMPOSITES, MICROSTRUCTURE, CORROSION, ALLOYS
  • Kocaeli University Affiliated: Yes

Abstract

In this study, a new metal matrix composite of aluminium was designed with the addition of nickel alloy particles. To produce in situ intermetallic formation, aluminium-nickel powder mixtures with different ratios ranging from 5 to 40 wt% Ni were consolidated at 550 degrees C for 15 minutes under 40 MPa pressure. The interlayer phase formed during sintering was determined using X-ray diffraction and energy dispersive X-ray spectroscopy. The effect of nickel and Al-Ni intermetallics on the mechanical properties of the material was studied. The results demonstrated that the addition of nickel enhanced the hardness and wear behaviour of aluminium by forming a strong bonding interface between the aluminium and nickel particles.