Study on the erosion characteristics of boride coatings by finite element analysis

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

In this paper, tensile stress distribution in the surface of high-parameter steam turbine blade anti-erosion boride coatings under single particle impact was investigated using a nonlinear finite element software ABAQUS/explicit based on the actual erosion environment in power units. The results showed that the single Fe2B phase coating hardly had stable anti-erosion capability when the coating thickness was less than 20 μm under the continuous impacts. For the bilayer boride coating composed of top phase FeB and bottom phase Fe2B, the whole coating began to show the stable anti-erosion performance with top FeB phase coating thickness of 120 μm from the standpoint of maximum surface tensile stress reduction. Anti-erosion performance of single Fe2B phase boride coating was 23.15% higher than the bilayer boride coating. Besides, the optimum parameters configurations for boride coatings were studied.

Original languageEnglish
Pages (from-to)115-124
Number of pages10
JournalSurface and Coatings Technology
Volume333
DOIs
StatePublished - 15 Jan 2018

Keywords

  • Boride coatings
  • Finite element analysis
  • Single particle impact
  • Solid particle erosion
  • Stress distribution

Fingerprint

Dive into the research topics of 'Study on the erosion characteristics of boride coatings by finite element analysis'. Together they form a unique fingerprint.

Cite this