Experimental investigation of engineering materials under repetitive impact with slurry conditions

F. Brownlie, T. Hodgkiess, A. M. Galloway, A. Pearson

Research output: Contribution to journalArticle

Abstract

In some industrial situations, components are subject to repetitive impact in the presence of a slurry. A novel repetitive impact-with-slurry test rig was developed to evaluate the behaviour of a wide range of engineering materials in such conditions. The test materials could be categorised into five main groups – heat treated steels, stainless steels, chromium cast irons, hardfacing coatings and superalloys. Three-dimensional surface topography was used to quantify the depths and volumes of the produced wear scars. Post-test metallurgical examination was also conducted to further evaluate the wear processes. The wear mechanisms could be split into two main groups of materials; ductile materials were observed to plastically deform and hard/brittle materials demonstrated cracking/spalling mechanisms. Hardened martensitic-type materials exhibited the greatest resistance to repetitive impact wear.
Original languageEnglish
Number of pages33
JournalTribology letters
Publication statusAccepted/In press - 20 Nov 2020

Keywords

  • wear mechanisms
  • contact surface wear
  • slurry

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