Solid-particle erosion behavior of cast alloys used in the mining industry

ATAPEK Ş. H., FİDAN S.

INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, vol.22, no.12, pp.1283-1292, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 22 Issue: 12
  • Publication Date: 2015
  • Doi Number: 10.1007/s12613-015-1196-6
  • Journal Name: INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1283-1292
  • Keywords: mining tools, microstructure, solid particle impact, erosion, characterization, SLIDING WEAR BEHAVIOR, IRONS, STEELS, MECHANISMS, CRUSHERS, MODEL
  • Kocaeli University Affiliated: Yes

Abstract

The erosive-wear response of five commercial ferrous-based cast alloys used for crushing was examined in this study. The microstructures of the alloys were modified to elucidate the effect of microstructural features on wear. Erosion tests were conducted using aluminum oxide particles (90-125 mu m) at 70 m/s and a normal impact angle (90A degrees). The worn surfaces were characterized by scanning electron microscopy and 3D non-contact laser profilometry. It is found that (i) a pearlitic structure exhibiting a greater plastic deformation than both bainitic and martensitic structures shows the greatest resistance to erosive wear at normal impact and (ii) the fracture characteristics of carbide and graphite particles plays an important role in determining the erosion wear behavior of the cast alloy matrices.