Comparing the performance of HIPed and Cast Stellite 6 alloy in liquid-solid slurries

U. Malayoglu, A. Neville

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

In this paper, results from erosion-corrosion tests performed under liquid-solid erosion conditions in 3.5% NaCl liquid medium are reported. The focus of the paper is to compare the behaviour of Cast and Hot Isostatically Pressed (HIPed) Stellite 6 alloy in terms of their electrochemical corrosion characteristics, their resistance to mechanical degradation and relationship between microstructure and degradation mechanisms. It has been shown that HIPed Stellite 6 possesses better erosion and erosion corrosion resistance than that of Cast Stellite 6 and two stainless steels (UNS S32760 and UNS S31603) under the same solid loading (200 and 500 mg/l), and same temperature (20 and 50 °C). The material removal mechanisms have been identified by using atomic force microscopy (AFM) and shown preferential removal of the Co-rich matrix to be less extensive on the HIPed material. © 2003 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Pages (from-to)181-194
Number of pages14
JournalWear
Volume255
Issue number1-6
DOIs
Publication statusPublished - Aug 2003

Keywords

  • Cast Stellite 6
  • Corrosion
  • Erosion
  • HIPed
  • Liquid-solid slurries

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