A generalized critical velocity window based on material property for cold spraying by eulerian method

W. Y. Li, M. Yu, F. F. Wang, S. Yin, H. L. Liao

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

In this paper, the previously developed Eulerian model (Yu et al., J Therm Spray Technol 21(3):745-752, 2012), which could well predict the critical velocity and erosion velocity, was extended to other commonly used materials such as aluminum, iron, nickel, stainless steel 316, and Inconel718 for studying the influence of material property and establishing a generalized window of critical velocity. Results show that the deformation behavior of the used materials could be classified as coordinated deformation (copper, iron, nickel) and uncoordinated deformation patterns (aluminum, stainless steel, and Inconel718). However, it was found that the steady maximum equivalent plastic strain values at the critical velocity for each material concentrate in the extent of 2.6-3.0 regardless of deformation pattern. Dimensionless analysis shows that, the calculated critical velocity increases with the increase of material characteristic velocity, and this relationship can be primarily used to predict the critical velocity.

Original languageEnglish
Pages (from-to)557-566
Number of pages10
JournalJournal of Thermal Spray Technology
Volume23
Issue number3
DOIs
StatePublished - Feb 2014

Keywords

  • cold spraying
  • critical velocity
  • material characteristic velocity
  • material property

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